Change license, flat file hier, do not use gpp, join .py and .pyx, simpler makefile1.1.2

Signed-off-by: Mattias Andrée <maandree@kth.se>

4 files changed, 1219 insertions, 1323 deletions

diff --git a/src/libcoopgamma_native.pyx.gpp b/libcoopgamma.pyx
index eee05ec..57a53a4 100644
--- a/src/libcoopgamma_native.pyx.gpp
+++ b/libcoopgamma.pyx
@@ -1,21 +1,5 @@
 # -*- python -*-
-'''
-pylibcoopgamma -- Python library for interfacing with cooperative gamma servers
-Copyright (C) 2016  Mattias Andrée (maandree@kth.se)
-
-This library is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this library.  If not, see <http://www.gnu.org/licenses/>.
-'''
+# See LICENSE file for copyright and license details.
 cimport cython
 
 from libc.stddef cimport size_t
@@ -23,6 +7,7 @@ from libc.stdlib cimport calloc, malloc, free
 from libc.stdint cimport int64_t, uint8_t, uint16_t, uint32_t, uint64_t, intptr_t
 from libc.errno cimport errno
 
+import enum as _enum
 
 
 ctypedef int libcoopgamma_support_t
@@ -90,13 +75,6 @@ cdef extern from "include-libcoopgamma.h":
         # and `.blue_size` are undefined 
         libcoopgamma_support_t supported
         # The data type and bit-depth of the ramp stops
-$$<cpp <<EOF | tail -n 1 | sed '/#/d'
-#include <limits.h>
-#if INT_MAX != LONG_MAX
-        int padding__
-#endif
-EOF
-$$>
         size_t red_size
         # The number of stops in the red ramp
         size_t green_size
@@ -138,13 +116,6 @@ $$>
         # The CRTC for which the the current filters shall returned
         int coalesce
         # Whether to coalesce all filters into one gamma ramp triplet
-$$<cpp <<EOF | tail -n 1 | sed '/#/d'
-#include <limits.h>
-#if INT_MAX != LONG_MAX
-        int padding__
-#endif
-EOF
-$$>
 
     ctypedef struct libcoopgamma_queried_filter_t:
     # Stripped down version of `libcoopgamma_filter` which only contains
@@ -176,13 +147,6 @@ $$>
         # and `.filters->priority` is undefined.
         libcoopgamma_depth_t depth
         # The data type and bit-depth of the ramp stops
-$$<cpp <<EOF | tail -n 1 | sed '/#/d'
-#include <limits.h>
-#if INT_MAX != LONG_MAX
-        int padding__
-#endif
-EOF
-$$>
 
     ctypedef struct libcoopgamma_error_t:
     # Error message from coopgamma server
@@ -792,7 +756,7 @@ operation without disconnection from the server
 
 
 
-def libcoopgamma_native_get_methods():
+def _libcoopgamma_native_get_methods():
     '''
     List all recognised adjustment method
     
@@ -818,7 +782,7 @@ def libcoopgamma_native_get_methods():
     return ret
 
 
-def libcoopgamma_native_get_method_and_site(method : str, site : str):
+def _libcoopgamma_native_get_method_and_site(method : str, site : str):
     '''
     Get the adjustment method and site
     
@@ -866,7 +830,7 @@ def libcoopgamma_native_get_method_and_site(method : str, site : str):
         free(rcssite)
 
 
-def libcoopgamma_native_get_pid_file(method : str, site : str):
+def _libcoopgamma_native_get_pid_file(method : str, site : str):
     '''
     Get the PID file of the coopgamma server
     
@@ -904,7 +868,7 @@ def libcoopgamma_native_get_pid_file(method : str, site : str):
     return int(errno)
 
 
-def libcoopgamma_native_get_socket_file(method : str, site : str):
+def _libcoopgamma_native_get_socket_file(method : str, site : str):
     '''
     Get the socket file of the coopgamma server
     
@@ -943,7 +907,7 @@ def libcoopgamma_native_get_socket_file(method : str, site : str):
     return int(errno)
 
 
-def libcoopgamma_native_context_create():
+def _libcoopgamma_native_context_create():
     '''
     Create an instance of `libcoopgamma_context_t`
     
@@ -963,7 +927,7 @@ def libcoopgamma_native_context_create():
     return (True, int(<intptr_t><void*>this))
 
 
-def libcoopgamma_native_context_free(address : int):
+def _libcoopgamma_native_context_free(address : int):
     '''
     Disconnect and free an instance of a `libcoopgamma_context_t`
     
@@ -974,7 +938,7 @@ def libcoopgamma_native_context_free(address : int):
     free(this)
 
 
-def libcoopgamma_native_context_marshal(address : int):
+def _libcoopgamma_native_context_marshal(address : int):
     '''
     Marshal a `libcoopgamma_context_t` into a buffer
     
@@ -994,7 +958,7 @@ def libcoopgamma_native_context_marshal(address : int):
         free(buf)
 
 
-def libcoopgamma_native_context_unmarshal(buf : bytes):
+def _libcoopgamma_native_context_unmarshal(buf : bytes):
     '''
     Unmarshal a `libcoopgamma_context_t` from a buffer
     
@@ -1032,7 +996,7 @@ def libcoopgamma_native_context_unmarshal(buf : bytes):
         free(bs)
 
 
-def libcoopgamma_native_context_set_fd(address : int, fd : int):
+def _libcoopgamma_native_context_set_fd(address : int, fd : int):
     '''
     Set the field for socket file descriptor in a `libcoopgamma_context_t` 
     
@@ -1043,7 +1007,7 @@ def libcoopgamma_native_context_set_fd(address : int, fd : int):
     this.fd = fd
 
 
-def libcoopgamma_native_async_context_create():
+def _libcoopgamma_native_async_context_create():
     '''
     Create an instance of `libcoopgamma_context_t`
     
@@ -1063,7 +1027,7 @@ def libcoopgamma_native_async_context_create():
     return (True, int(<intptr_t><void*>this))
 
 
-def libcoopgamma_native_async_context_free(address : int):
+def _libcoopgamma_native_async_context_free(address : int):
     '''
     Free an instance of a `libcoopgamma_async_context_t`
     
@@ -1074,7 +1038,7 @@ def libcoopgamma_native_async_context_free(address : int):
     free(this)
 
 
-def libcoopgamma_native_async_context_marshal(address : int):
+def _libcoopgamma_native_async_context_marshal(address : int):
     '''
     Marshal a `libcoopgamma_async_context_t` into a buffer
     
@@ -1095,7 +1059,7 @@ def libcoopgamma_native_async_context_marshal(address : int):
     return ret
 
 
-def libcoopgamma_native_async_context_unmarshal(buf : bytes):
+def _libcoopgamma_native_async_context_unmarshal(buf : bytes):
     '''
     Unmarshal a `libcoopgamma_async_context_t` from a buffer
     
@@ -1133,7 +1097,7 @@ def libcoopgamma_native_async_context_unmarshal(buf : bytes):
         free(bs)
 
 
-def libcoopgamma_native_connect(method : str, site : str, address : int):
+def _libcoopgamma_native_connect(method : str, site : str, address : int):
     '''
     Connect to a coopgamma server, and start it if necessary
     
@@ -1170,7 +1134,7 @@ def libcoopgamma_native_connect(method : str, site : str, address : int):
         free(csite)
 
 
-def libcoopgamma_native_set_nonblocking(address : int, nonblocking : bool):
+def _libcoopgamma_native_set_nonblocking(address : int, nonblocking : bool):
     '''
     By default communication is blocking, this function
     can be used to switch between blocking and nonblocking
@@ -1192,7 +1156,7 @@ def libcoopgamma_native_set_nonblocking(address : int, nonblocking : bool):
     return 0
 
 
-def libcoopgamma_native_flush(address : int):
+def _libcoopgamma_native_flush(address : int):
     '''
     Send all pending outbound data
     
@@ -1211,7 +1175,7 @@ def libcoopgamma_native_flush(address : int):
     return 0
 
 
-def libcoopgamma_native_synchronise(address : int, pending : list):
+def _libcoopgamma_native_synchronise(address : int, pending : list):
     '''
     Wait for the next message to be received
     
@@ -1238,7 +1202,7 @@ def libcoopgamma_native_synchronise(address : int, pending : list):
     return (True, <int>selected)
 
 
-def libcoopgamma_native_skip_message(address : int):
+def _libcoopgamma_native_skip_message(address : int):
     '''
     Tell the library that you will not be parsing a receive message
     
@@ -1247,7 +1211,7 @@ def libcoopgamma_native_skip_message(address : int):
     libcoopgamma_skip_message(<libcoopgamma_context_t*><void*><intptr_t>address)
 
 
-def libcoopgamma_native_get_crtcs_send(address : int, async_ctx : int):
+def _libcoopgamma_native_get_crtcs_send(address : int, async_ctx : int):
     '''
     List all available CRTC:s, send request part
     
@@ -1262,7 +1226,7 @@ def libcoopgamma_native_get_crtcs_send(address : int, async_ctx : int):
     return 0
 
 
-def libcoopgamma_native_get_crtcs_recv(address : int, async_ctx : int):
+def _libcoopgamma_native_get_crtcs_recv(address : int, async_ctx : int):
     '''
     List all available CRTC:s, receive response part
     
@@ -1288,7 +1252,7 @@ def libcoopgamma_native_get_crtcs_recv(address : int, async_ctx : int):
     return ret
 
 
-def libcoopgamma_native_get_crtcs_sync(address : int):
+def _libcoopgamma_native_get_crtcs_sync(address : int):
     '''
     List all available CRTC:s, synchronous version
     
@@ -1319,7 +1283,7 @@ def libcoopgamma_native_get_crtcs_sync(address : int):
     return ret
 
 
-def libcoopgamma_native_get_gamma_info_send(crtc : str, address : int, async_ctx : int):
+def _libcoopgamma_native_get_gamma_info_send(crtc : str, address : int, async_ctx : int):
     '''
     Retrieve information about a CRTC:s gamma ramps, send request part
     
@@ -1348,7 +1312,7 @@ def libcoopgamma_native_get_gamma_info_send(crtc : str, address : int, async_ctx
     return 0
 
 
-def libcoopgamma_native_get_gamma_info_recv(address : int, async_ctx : int):
+def _libcoopgamma_native_get_gamma_info_recv(address : int, async_ctx : int):
     '''
     Retrieve information about a CRTC:s gamma ramps, receive response part
     
@@ -1383,7 +1347,7 @@ def libcoopgamma_native_get_gamma_info_recv(address : int, async_ctx : int):
     return ret
 
 
-def libcoopgamma_native_get_gamma_info_sync(crtc : str, address : int):
+def _libcoopgamma_native_get_gamma_info_sync(crtc : str, address : int):
     '''
     Retrieve information about a CRTC:s gamma ramps, synchronous version
     
@@ -1428,7 +1392,7 @@ def libcoopgamma_native_get_gamma_info_sync(crtc : str, address : int):
     return ret
 
 
-def libcoopgamma_native_get_gamma_send(query, address : int, async_ctx : int):
+def _libcoopgamma_native_get_gamma_send(query, address : int, async_ctx : int):
     
     '''
     Retrieve the current gamma ramp adjustments, send request part
@@ -1461,7 +1425,7 @@ def libcoopgamma_native_get_gamma_send(query, address : int, async_ctx : int):
     return 0
     
 
-def libcoopgamma_native_get_gamma_recv(address : int, async_ctx : int):
+def _libcoopgamma_native_get_gamma_recv(address : int, async_ctx : int):
     '''
     Retrieve the current gamma ramp adjustments, receive response part
     
@@ -1549,7 +1513,7 @@ def libcoopgamma_native_get_gamma_recv(address : int, async_ctx : int):
     return ret
 
 
-def libcoopgamma_native_get_gamma_sync(query, address : int):
+def _libcoopgamma_native_get_gamma_sync(query, address : int):
     '''
     Retrieve the current gamma ramp adjustments, synchronous version
     
@@ -1656,7 +1620,7 @@ def libcoopgamma_native_get_gamma_sync(query, address : int):
     return ret
 
 
-def libcoopgamma_native_copy_ramps(intptr_t dest_address, src, libcoopgamma_depth_t depth):
+def _libcoopgamma_native_copy_ramps(intptr_t dest_address, src, libcoopgamma_depth_t depth):
     '''
     Copy a Python ramp-trio into C ramp-trio
     
@@ -1766,7 +1730,7 @@ def libcoopgamma_native_copy_ramps(intptr_t dest_address, src, libcoopgamma_dept
         dest.u_blue  = <void*>bd
 
 
-def libcoopgamma_native_set_gamma_send(filtr, address : int, async_ctx : int):
+def _libcoopgamma_native_set_gamma_send(filtr, address : int, async_ctx : int):
     '''
     Apply, update, or remove a gamma ramp adjustment, send request part
     
@@ -1797,7 +1761,7 @@ def libcoopgamma_native_set_gamma_send(filtr, address : int, async_ctx : int):
     flr.ramps.u_blue  = NULL
     try:
         if filtr.ramps is not None:
-            libcoopgamma_native_copy_ramps(<intptr_t><void*>&(flr.ramps), filtr.ramps, flr.depth)
+            _libcoopgamma_native_copy_ramps(<intptr_t><void*>&(flr.ramps), filtr.ramps, flr.depth)
         flr.crtc = <char*>malloc(len(crtc_bs) * sizeof(char))
         if flr.crtc is NULL:
             return int(errno)
@@ -1817,7 +1781,7 @@ def libcoopgamma_native_set_gamma_send(filtr, address : int, async_ctx : int):
     return 0
 
 
-def libcoopgamma_native_set_gamma_recv(address : int, async_ctx : int):
+def _libcoopgamma_native_set_gamma_recv(address : int, async_ctx : int):
     '''
     Apply, update, or remove a gamma ramp adjustment, receive response part
     
@@ -1839,7 +1803,7 @@ def libcoopgamma_native_set_gamma_recv(address : int, async_ctx : int):
     return None
 
 
-def libcoopgamma_native_set_gamma_sync(filtr, address : int):
+def _libcoopgamma_native_set_gamma_sync(filtr, address : int):
     '''
     Apply, update, or remove a gamma ramp adjustment, synchronous version
     
@@ -1873,7 +1837,7 @@ def libcoopgamma_native_set_gamma_sync(filtr, address : int):
     flr.ramps.u_blue  = NULL
     try:
         if filtr.ramps is not None:
-            libcoopgamma_native_copy_ramps(<intptr_t><void*>&(flr.ramps), filtr.ramps, flr.depth)
+            _libcoopgamma_native_copy_ramps(<intptr_t><void*>&(flr.ramps), filtr.ramps, flr.depth)
         flr.crtc = <char*>malloc(len(crtc_bs) * sizeof(char))
         if flr.crtc is NULL:
             return int(errno)
@@ -1896,3 +1860,1186 @@ def libcoopgamma_native_set_gamma_sync(filtr, address : int):
         free(flr.ramps.u_red)
     return None
 
+
+class Support(_enum.IntEnum):
+    '''
+    Values used to indicate the support for gamma adjustments
+    
+    @value  NO=0     Gamma adjustments are not supported
+    @value  MAYBE=1  Don't know whether gamma adjustments are supported
+    @value  YES=2    Gamma adjustments are supported
+    '''
+    NO = 0
+    MAYBE = 1
+    YES = 2
+    
+    @staticmethod
+    def str(v):
+        '''
+        Get string representation of a value
+        
+        @param   v:int  The value, must be value of the enum
+        @return  :str   Human-readable string representation of the value
+        '''
+        if v == Support.NO:
+            return 'no'
+        if v == Support.YES:
+            return 'yes'
+        if v == Support.MAYBE:
+            return 'maybe'
+        raise ValueError()
+
+
+class Depth(_enum.IntEnum):
+    '''
+    Values used to tell which datatype is used for the gamma ramp stops
+    
+    The values will always be the number of bits for integral types, and
+    negative for floating-point types
+    
+    @value  UINT8=8    Unsigned 8-bit integer
+    @value  UINT16=16  Unsigned 16-bit integer
+    @value  UINT32=32  Unsigned 32-bit integer
+    @value  UINT64=64  Unsigned 64-bit integer
+    @value  FLOAT<0    Single-precision floating-point
+    @value  DOUBLE<0   Double-precision floating-point
+    '''
+    UINT8 = 8
+    UINT16 = 16
+    UINT32 = 32
+    UINT64 = 64
+    FLOAT = -1
+    DOUBLE = -2
+    
+    @staticmethod
+    def str(v):
+        '''
+        Get string representation of a value
+        
+        @param   v:int  The value, must be value of the enum
+        @return  :str   Human-readable string representation of the value
+        '''
+        if v == Depth.UINT8:
+            return '8-bits'
+        if v == Depth.UINT16:
+            return '16-bits'
+        if v == Depth.UINT32:
+            return '32-bits'
+        if v == Depth.UINT64:
+            return '64-bits'
+        if v == Depth.FLOAT:
+            return 'single-precision floating-point'
+        if v == Depth.DOUBLE:
+            return 'double-precision floating-point'
+        raise ValueError()
+
+
+class Lifespan(_enum.IntEnum):
+    '''
+    Values used to tell when a filter should be removed
+    
+    @value  REMOVE=0         Remove the filter now
+    @value  UNTIL_DEATH>0    Remove the filter when disconnecting from the coopgamma server
+    @value  UNTIL_REMOVAL>0  Only remove the filter when it is explicitly requested
+    '''
+    REMOVE = 0
+    UNTIL_DEATH = 1
+    UNTIL_REMOVAL = 2
+    
+    @staticmethod
+    def str(v):
+        '''
+        Get string representation of a value
+        
+        @param   v:int  The value, must be value of the enum
+        @return  :str   Human-readable string representation of the value
+        '''
+        if v == Lifespan.REMOVE:
+            return 'remove'
+        if v == Lifespan.UNTIL_DEATH:
+            return 'until death'
+        if v == Lifespan.UNTIL_REMOVAL:
+            return 'until removal'
+        raise ValueError()
+
+
+class Colourspace(_enum.IntEnum):
+    '''
+    Colourspaces
+    
+    @value  UNKNOWN=0  The colourspace is unknown
+    @value  SRGB>0     sRGB (Standard RGB)
+    @value  RGB>0      RGB other than sRGB
+    @value  NON_RGB>0  Non-RGB multicolour
+    @value  GREY>0     Monochrome, greyscale, or some other singlecolour scale
+    '''
+    UNKNOWN = 0
+    SRGB = 1
+    RGB = 2
+    NON_RGB = 3
+    GREY = 4
+    
+    @staticmethod
+    def str(v):
+        '''
+        Get string representation of a value
+        
+        @param   v:int  The value, must be value of the enum
+        @return  :str   Human-readable string representation of the value
+        '''
+        if v == Colourspace.UNKNOWN:
+            return 'unknown'
+        if v == Colourspace.SRGB:
+            return 'sRGB'
+        if v == Colourspace.RGB:
+            return 'RGB'
+        if v == Colourspace.NON_RGB:
+            return 'non-RGB'
+        if v == Colourspace.GREY:
+            return 'greyscale'
+        raise ValueError()
+
+
+class Ramps:
+    '''
+    Gamma ramp structure
+    
+    @variable  red:list<int>    The red gamma ramp
+    @variable  green:list<int>  The green gamma ramp
+    @variable  blue:list<int>   The blue gamma ramp
+    '''
+    def __init__(self, red, green, blue):
+        '''
+        Constructor
+        
+        @param  red:int    The number of stops in the red ramp
+        @param  green:int  The number of stops in the green ramp
+        @param  blue:int   The number of stops in the blue ramp
+        
+        -- or --
+        
+        @param  red:list<int>    The red gamma ramp
+        @param  green:list<int>  The green gamma ramp
+        @param  blue:list<int>   The blue gamma ramp
+        '''
+        if isinstance(red, list):
+            self.red   = list(red)
+            self.green = list(green)
+            self.blue  = list(blue)
+        else:
+            self.red   = [0] * red
+            self.green = [0] * green
+            self.blue  = [0] * blue
+    
+    def clone(self):
+        '''
+        Create a copy of the instance
+        '''
+        return Ramps(self.red, self.green, self.blue)
+    
+    def __repr__(self):
+        '''
+        Create a parsable string representation of the instance
+        
+        @return  :str  Parsable representation of the instance
+        '''
+        params = (self.red, self.green, self.blue)
+        return 'libcoopgamma.Ramps(%s)' % ', '.join(repr(p) for p in params)
+
+
+class Filter:
+    '''
+    Data set to the coopgamma server to apply, update, or remove a filter
+    
+    @variable  priority:int       The priority of the filter, higher priority
+                                  is applied first. The gamma correction should
+                                  have priority 0. This is a signed 64-bit integer.
+    @variable  crtc:str           The CRTC for which this filter shall be applied 
+    @variable  fclass:str         Identifier for the filter.
+                                  The syntax must be "${PACKAGE_NAME}::${COMMAND_NAME}::${RULE}".
+    @variable  lifespan:Lifespan  When shall the filter be removed?
+                                  If this member's value is `LIBCOOPGAMMA_REMOVE`,
+                                  only `.crtc` and `.class` need also be defined.
+    @variable  depth:Depth        The data type and bit-depth of the ramp stops
+    @variable  ramps:Ramps        The gamma ramp adjustments of the filter
+    '''
+    def __init__(self, priority = None, crtc = None, fclass = None, lifespan = None, depth = None, ramps = None):
+        '''
+        Constructor
+        
+        @param  priority:int       The priority of the filter, higher priority
+                                   is applied first. The gamma correction should
+                                   have priority 0. This is a signed 64-bit integer.
+        @param  crtc:str           The CRTC for which this filter shall be applied 
+        @param  fclass:str         Identifier for the filter.
+                                   The syntax must be "${PACKAGE_NAME}::${COMMAND_NAME}::${RULE}".
+        @param  lifespan:Lifespan  When shall the filter be removed?
+                                   If this member's value is `LIBCOOPGAMMA_REMOVE`,
+                                   only `.crtc` and `.class` need also be defined.
+        @param  depth:Depth        The data type and bit-depth of the ramp stops
+        @param  ramps:Ramps        The gamma ramp adjustments of the filter
+        '''
+        self.priority = priority
+        self.crtc = crtc
+        self.fclass = fclass
+        self.lifespan = lifespan
+        self.depth = depth
+        self.ramps = ramps
+    
+    def clone(self, shallow = False):
+        '''
+        Create a copy of the instance
+        
+        @param  shallow:bool  Create a shallow copy?
+        '''
+        ramps = self.ramps if shallow else self.ramps.clone()
+        return Filter(self.priority, self.crtc, self.fclass, self.lifespan, self.depth, ramps)
+    
+    def __repr__(self):
+        '''
+        Create a parsable string representation of the instance
+        
+        @return  :str  Parsable representation of the instance
+        '''
+        params = (self.priority, self.crtc, self.fclass, self.lifespan, self.depth, self.ramps)
+        return 'libcoopgamma.Filter(%s)' % ', '.join(repr(p) for p in params)
+
+
+class GamutPoint:
+    '''
+    The x- and y-values (CIE xyY) of a colour
+    
+    @variable  x_raw:int  The x-value (CIE xyY) multiplied by 1024
+    @variable  y_raw:int  The y-value (CIE xyY) multiplied by 1024
+    @variable  x:int      The x-value (CIE xyY)
+    @variable  y:int      The y-value (CIE xyY)
+    '''
+    def __init__(self, x, y):
+        '''
+        Constructor
+        
+        @param  x:int  The x-value (CIE xyY) multiplied by 1024
+        @param  y:int  The y-value (CIE xyY) multiplied by 1024
+        '''
+        self.x_raw, self.x = x, x / 1024
+        self.y_raw, self.y = y, y / 1024
+    
+    def clone(self):
+        '''
+        Create a copy of the instance
+        '''
+        return GamutPoint(self.x_raw, self.y_raw)
+    
+    def __repr__(self):
+        '''
+        Create a parsable string representation of the instance
+        
+        @return  :str  Parsable representation of the instance
+        '''
+        params = (self.x_raw, self.y_raw)
+        return 'libcoopgamma.GamutPoint(%s)' % ', '.join(repr(p) for p in params)
+    
+    def __str__(self):
+        '''
+        Get human-readable string representation of instance
+        
+        @return  :str  Human-readable string representation of instance
+        '''
+        return '(%f, %f)' % (self.x, self.y)
+
+
+class Gamut:
+    '''
+    The values of the monitor's colour stimuli
+    
+    @variable  red:GamutPoint    The red stimuli
+    @variable  green:GamutPoint  The green stimuli
+    @variable  blue:GamutPoint   The blue stimuli
+    @variable  white:GamutPoint  The default whitepoint
+    '''
+    def __init__(self, red = None, green = None, blue = None, white = None):
+        '''
+        Constructor
+        
+        @param  red:GamutPoint|(int, int)    The red stimuli
+        @param  green:GamutPoint|(int, int)  The green stimuli
+        @param  blue:GamutPoint|(int, int)   The blue stimuli
+        @param  white:GamutPoint|(int, int)  The default whitepoint
+        '''
+        self.red   = GamutPoint(*red)   if isinstance(red,   tuple) else red
+        self.green = GamutPoint(*green) if isinstance(green, tuple) else green
+        self.blue  = GamutPoint(*blue)  if isinstance(blue,  tuple) else blue
+        self.white = GamutPoint(*white) if isinstance(white, tuple) else white
+    
+    def clone(self, shallow = True):
+        '''
+        Create a copy of the instance
+        
+        @param  shallow:bool  Create a shallow copy?
+        '''
+        if shallow:
+            return Gamut(self.red, self.green, self.blue, self.white)
+        return Gamut(self.red.clone(), self.green.clone(), self.blue.clone(), self.white.clone())
+    
+    def __repr__(self):
+        '''
+        Create a parsable string representation of the instance
+        
+        @return  :str  Parsable representation of the instance
+        '''
+        params = (repr(self.red), repr(self.green), repr(self.blue), repr(self.white))
+        return 'libcoopgamma.Gamut(%s)' % ', '.join(repr(p) for p in params)
+
+
+class CRTCInfo:
+    '''
+    Gamma ramp meta information for a CRTC
+    
+    @variable  cooperative:bool         Is cooperative gamma server running?
+    @variable  depth:Depth?             The data type and bit-depth of the ramp stops
+    @variable  supported:Support        Is gamma adjustments supported on the CRTC?
+                                        If not, `depth`, `red_size`, `green_size`,
+                                        and `blue_size` are undefined
+    @variable  red_size:int?            The number of stops in the red ramp
+    @variable  green_size:int?          The number of stops in the green ramp
+    @variable  blue_size:int?           The number of stops in the blue ramp
+    @variable  colourspace:Colourspace  The monitor's colourspace
+    @variable  gamut:Gamut?             Measurements of the monitor's colourspace,
+                                        `None` if the this information is unavailable.
+                                        If this is not `None`, but the colourspace
+                                        is not RGB (or sRGB), there is something
+                                        wrong. Always check the colourspace.
+    '''
+    def __init__(self, cooperative = None, depth = None, supported = None, red_size = None,
+                 green_size = None, blue_size = None, colourspace = None, gamut = None):
+        '''
+        Constructor
+        
+        @param  cooperative:bool         Is cooperative gamma server running?
+        @param  depth:Depth?             The data type and bit-depth of the ramp stops
+        @param  supported:Support        Is gamma adjustments supported on the CRTC?
+                                         If not, `depth`, `red_size`, `green_size`,
+                                         and `blue_size` are undefined
+        @param  red_size:int?            The number of stops in the red ramp
+        @param  green_size:int?          The number of stops in the green ramp
+        @param  blue_size:int?           The number of stops in the blue ramp
+        @param  colourspace:Colourspace  The monitor's colourspace
+        @param  gamut:Gamut|tuple?       Measurements of the monitor's colourspace,
+                                         `None` if the this information is unavailable
+        '''
+        self.cooperative = cooperative
+        self.depth = depth
+        self.supported = supported
+        self.red_size = red_size
+        self.green_size = green_size
+        self.blue_size = blue_size
+        self.colourspace = colourspace
+        if gamut is None or isinstance(gamut, Gamut):
+            self.gamut = gamut
+        else:
+            self.gamut = Gamut(*gamut)
+    
+    def make_ramps(self):
+        '''
+        Construct a `Ramps` instances for this CRTC
+        
+        @return  :Ramps  An instance of `Ramps` with same a number of ramp stops
+                         matching this CRTC
+        '''
+        return Ramps(self.red_size, self.green_size, self.blue_size)
+    
+    def clone(self, shallow = True):
+        '''
+        Create a copy of the instance
+        
+        @param  shallow:bool  Create a shallow copy?
+        '''
+        return CRTCInfo(self.cooperative, self.depth, self.supported, self.red_size,
+                        self.green_size, self.blue_size, self.colourspace,
+                        self.gamut if shallow else self.gamut.clone())
+    
+    def __repr__(self):
+        '''
+        Create a parsable string representation of the instance
+        
+        @return  :str  Parsable representation of the instance
+        '''
+        params = (self.cooperative, self.depth, self.supported, self.red_size,
+                  self.green_size, self.blue_size, self.colourspace, self.gamut)
+        return 'libcoopgamma.CRTCInfo(%s)' % ', '.join(repr(p) for p in params)
+
+
+class FilterQuery:
+    '''
+    Data sent to the coopgamma server when requestng the current filter table
+    
+    @variable  high_priority:int  Do no return filters with higher priority than
+                                  this value. This is a signed 64-bit integer.
+    @variable  low_priority:int   Do no return filters with lower priority than
+                                  this value. This is a signed 64-bit integer.
+    @variable  crtc:str           The CRTC for which the the current filters shall returned
+    @variable  coalesce:bool      Whether to coalesce all filters into one gamma ramp triplet
+    '''
+    def __init__(self, high_priority = 9223372036854775807,
+                 low_priority = -9223372036854775808, crtc = None, coalesce = False):
+        '''
+        Constructor
+        
+        @param  high_priority:int  Do no return filters with higher priority than
+                                   this value. This is a signed 64-bit integer.
+        @param  low_priority:int   Do no return filters with lower priority than
+                                   this value. This is a signed 64-bit integer.
+        @param  crtc:str           The CRTC for which the the current filters shall returned
+        @param  coalesce:bool      Whether to coalesce all filters into one gamma ramp triplet
+        '''
+        self.high_priority = high_priority
+        self.low_priority = low_priority
+        self.crtc = crtc
+        self.coalesce = coalesce
+    
+    def clone(self):
+        '''
+        Create a copy of the instance
+        '''
+        return FilterQuery(self.high_priority, self.low_priority, self.crtc, self.coalesce)
+    
+    def __repr__(self):
+        '''
+        Create a parsable string representation of the instance
+        
+        @return  :str  Parsable representation of the instance
+        '''
+        params = (self.high_priority, self.low_priority, self.crtc, self.coalesce)
+        return 'libcoopgamma.FilterQuery(%s)' % ', '.join(repr(p) for p in params)
+
+
+class QueriedFilter:
+    '''
+    Stripped down version of `Filter` which only contains the
+    information returned in response to "Command: get-gamma"
+    
+    @variable  priority:int  The filter's priority. This is a signed 64-bit integer.
+    @variable  fclass:str    The filter's class
+    @variable  ramps:Ramps   The gamma ramp adjustments of the filter
+    '''
+    def __init__(self, priority = None, fclass = None, ramps = None):
+        '''
+        Constructor
+        
+        @param  priority:int       The filter's priority. This is a signed 64-bit integer.
+        @param  fclass:str         The filter's class
+        @param  ramps:Ramps|tuple  The gamma ramp adjustments of the filter
+        '''
+        self.priority = priority
+        self.fclass = fclass
+        self.ramps = None
+        if ramps is not None:
+            self.ramps = Ramps(*ramps) if isinstance(ramps, tuple) else ramps
+    
+    def clone(self, shallow = False):
+        '''
+        Create a copy of the instance
+        
+        @param  shallow:bool  Create a sallow copy?
+        '''
+        ramps = self.ramps if shallow else self.ramps.clone()
+        return QueriedFilter(self.priority, self.fclass, ramps)
+    
+    def __repr__(self):
+        '''
+        Create a parsable string representation of the instance
+        
+        @return  :str  Parsable representation of the instance
+        '''
+        params = (self.priority, self.fclass, self.ramps)
+        return 'libcoopgamma.QueriedFilter(%s)' % ', '.join(repr(p) for p in params)
+
+
+class FilterTable:
+    '''
+    Response type for "Command: get-gamma": a list of applied filters
+    and meta-information that was necessary for decoding the response
+    
+    @variable  red_size:int                 The number of stops in the red ramp
+    @variable  green_size:int               The number of stops in the green ramp
+    @variable  blue_size:int                The number of stops in the blue ramp
+    @variable  depth:Depth                  The data type and bit-depth of the ramp stops
+    @variable  filters:list<QueriedFilter>  The filters, should be ordered by priority
+                                            in descending order, lest there is something
+                                            wrong with the coopgamma server.
+                                            If filter coalition was requested, there will
+                                            be exactly one filter and `filters[0].class`
+                                            and `filters[0].priority` are undefined.
+    '''
+    def __init__(self, red_size = None, green_size = None, blue_size = None, depth = None, filters = None):
+        '''
+        Constructor 
+        
+        @param  red_size:int                       The number of stops in the red ramp
+        @param  green_size:int                     The number of stops in the green ramp
+        @param  blue_size:int                      The number of stops in the blue ramp
+        @param  depth:Depth                        The data type and bit-depth of the ramp stops
+        @param  filters:list<QueriedFilter|tuple>  The filters, should be ordered by priority
+                                                   in descending order, lest there is something
+                                                   wrong with the coopgamma server.
+                                                   If filter coalition was requested, there will
+                                                   be exactly one filter and `filters[0].class`
+                                                   and `filters[0].priority` are undefined.
+        '''
+        self.red_size   = red_size
+        self.green_size = green_size
+        self.blue_size  = blue_size
+        self.depth      = depth
+        if filters is None:
+            self.filters
+        else:
+            self.filters    = list(QueriedFilter(*f) if isinstance(f, tuple) else f for f in filters)
+    
+    def make_ramps(self):
+        '''
+        Construct a `Ramps` instances for this CRTC
+        
+        @return  :Ramps  An instance of `Ramps` with same a number of ramp stops
+                         matching this CRTC
+        '''
+        return Ramps(self.red_size, self.green_size, self.blue_size)
+    
+    def clone(self, shallow = False):
+        '''
+        Create a copy of the instance
+        
+        @param  shallow:bool  Create a sallow copy?
+        '''
+        filters = list(self.filters) if shallow else [f.clone() for f in self.filters]
+        return FilterTable(self.red_size, self.green_size, self.blue_size, self.depth, filters)
+    
+    def __repr__(self):
+        '''
+        Create a parsable string representation of the instance
+        
+        @return  :str  Parsable representation of the instance
+        '''
+        params = (self.red_size, self.green_size, self.blue_size, self.depth, self.filters)
+        return 'libcoopgamma.FilterTable(%s)' % ', '.join(repr(p) for p in params)
+
+
+class ErrorReport:
+    '''
+    Error message from coopgamma server
+    
+    @variable  number:int        The error code. If `.custom` is false, 0 indicates success,
+                                 otherwise, 0 indicates that no error code has been assigned.
+    @variable  custom:bool       Is this a custom error?
+    @variable  server_side:bool  Did the error occur on the server-side?
+    @variable  description:str?  Error message, can be `None` if `custom` is false
+    '''
+    def __init__(self, number = None, custom = None, server_side = None, description = None):
+        '''
+        Constructor
+        
+        @param  number:int        The error code. If `.custom` is false, 0 indicates success,
+                                  otherwise, 0 indicates that no error code has been assigned.
+        @param  custom:bool       Is this a custom error?
+        @param  server_side:bool  Did the error occur on the server-side?
+        @param  description:str?  Error message, can be `None` if `custom` is false
+        '''
+        self.number = number
+        self.custom = custom
+        self.server_side = server_side
+        self.description = description
+    
+    def clone(self):
+        '''
+        Create a copy of the instance
+        '''
+        return ErrorReport(self.number, self.custom, self.server_side, self.description)
+    
+    def __repr__(self):
+        '''
+        Create a parsable string representation of the instance
+        
+        @return  :str  Parsable representation of the instance
+        '''
+        params = (self.number, self.custom, self.server_side, self.description)
+        return 'libcoopgamma.ErrorReport(%s)' % ', '.join(repr(p) for p in params)
+    
+    @staticmethod
+    def create_error(error):
+        '''
+        Create an instance of a subclass of `Exception`
+        
+        @param  error  Error information
+        '''
+        if isinstance(error, int):
+            import os
+            return OSError(error, os.strerror(error))
+        error = ErrorReport(*error)
+        if not error.custom and not error.server_side:
+            import os
+            return OSError(error.number, os.strerror(error.number))
+        else:
+            return LibcoopgammaError(error)
+
+
+class LibcoopgammaError(Exception):
+    '''
+    libcoopgamma error class
+    
+    @variable  error:ErrorReport  Error information
+    '''
+    def __init__(self, error):
+        '''
+        Constructor
+        
+        @param  error:ErrorReport  Error information
+        '''
+        self.error = error
+    
+    def __str__(self):
+        '''
+        Return description and error number as a string
+        
+        @return  :str  Description and error number
+        '''
+        if self.error.description is not None:
+            if self.error.number != 0:
+                return '%s (#%i)' % (self.error.description, self.error.number)
+            else:
+                return '%s' % self.error.description
+        else:
+            return '#%i' % self.error.number
+    
+    def __repr__(self):
+        '''
+        Create a parsable string representation of the instance
+        
+        @return  :str  Parsable representation of the instance
+        '''
+        return 'libcoopgamma.LibcoopgammaError(%s)' % repr(self.error)
+
+
+class IncompatibleDowngradeError(Exception):
+    '''
+    Unmarshalled state from a newer version, that is not supported, of libcoopgamma
+    '''
+    def __init__(self):
+        '''
+        Constructor
+        '''
+        pass
+    
+    def __str__(self):
+        '''
+        Return descriptor of the error
+        
+        @return  :str  Descriptor of the error
+        '''
+        return 'Incompatible downgrade error'
+    
+    def __repr__(self):
+        '''
+        Create a parsable string representation of the instance
+        
+        @return  :str  Parsable representation of the instance
+        '''
+        return 'libcoopgamma.IncompatibleDowngradeError()'
+
+
+class IncompatibleUpgradeError(Exception):
+    '''
+    Unmarshalled state from an older version, that is no longer supported, of libcoopgamma
+    '''
+    def __init__(self):
+        '''
+        Constructor
+        '''
+        pass
+    
+    def __str__(self):
+        '''
+        Return descriptor of the error
+        
+        @return  :str  Descriptor of the error
+        '''
+        return 'Incompatible downgrade error'
+    
+    def __repr__(self):
+        '''
+        Create a parsable string representation of the instance
+        
+        @return  :str  Parsable representation of the instance
+        '''
+        return 'libcoopgamma.IncompatibleUpgradeErrorError()'
+
+
+class ServerInitialisationError(Exception):
+    '''
+    coopgamma server failed to initialise, reason unknown
+    '''
+    def __init__(self):
+        '''
+        Constructor
+        '''
+        pass
+    
+    def __str__(self):
+        '''
+        Return descriptor of the error
+        
+        @return  :str  Descriptor of the error
+        '''
+        return 'Server initialisation error'
+    
+    def __repr__(self):
+        '''
+        Create a parsable string representation of the instance
+        
+        @return  :str  Parsable representation of the instance
+        '''
+        return 'libcoopgamma.ServerInitialisationError()'
+
+
+class Context:
+    '''
+    Library state
+    
+    Use of this structure is not thread-safe, create
+    one instance per thread that uses this structure
+    
+    @variable  fd:int  File descriptor for the socket
+    '''
+    def __init__(self, fd = -1, buf = None):
+        '''
+        Constructor
+        
+        @param  fd:int      File descriptor for the socket
+        @param  buf:bytes?  Buffer to unmarshal
+        '''
+        self.address = None
+        self.fd = fd
+        if buf is None:
+            (successful, value) = _libcoopgamma_native_context_create()
+            if not successful:
+                raise ErrorReport.create_error(value)
+        else:
+            (error, value) = _libcoopgamma_native_context_unmarshal(buf)
+            if error < 0:
+                raise ErrorReport.create_error(value)
+            elif error == 1:
+                raise IncompatibleDowngradeError()
+            elif error == 2:
+                raise IncompatibleUpgradeError()
+        self.address = value
+    
+    def __del__(self):
+        '''
+        Destructor
+        '''
+        if self.address is not None:
+            _libcoopgamma_native_context_free(self.address)
+    
+    def __repr__(self):
+        '''
+        Create a parsable string representation of the instance
+        
+        @return  :str  Parsable representation of the instance
+        '''
+        data = _libcoopgamma_native_context_marshal(self.address)
+        if isinstance(data, int):
+            raise ErrorReport.create_error(data)
+        params = (self.fd, data)
+        return 'libcoopgamma.Context(%s)' % ', '.join(repr(p) for p in params)
+    
+    def connect(self, method = None, site = None):
+        '''
+        Connect to a coopgamma server, and start it if necessary
+        
+        Use `del` keyword to disconnect
+        
+        SIGCHLD must not be ignored or blocked
+        
+        All other methods in this class requires that this
+        method has been called successfully
+        
+        @param  method:int|str?  The adjustment method, `None` for automatic
+        @param  site:str?        The site, `None` for automatic
+        '''
+        if method is not None and isinstance(method, int):
+            method = str(method)
+        (successful, value) = _libcoopgamma_native_connect(method, site, self.address)
+        if not successful:
+            if value == 0:
+                raise ServerInitialisationError()
+            else:
+                raise ErrorReport.create_error(value)
+        self.fd = value
+    
+    def detach(self):
+        '''
+        After calling this function, communication with the
+        server is impossible, but the connection is not
+        closed and the when the instance is destroyed the
+        connection will remain
+        '''
+        _libcoopgamma_native_context_set_fd(self.address, -1)
+    
+    def attach(self):
+        '''
+        Undoes the action of `detach`
+        '''
+        _libcoopgamma_native_context_set_fd(self.address, self.fd)
+    
+    def set_nonbreaking(self, nonbreaking):
+        '''
+        By default communication is blocking, this function
+        can be used to switch between blocking and nonblocking
+        
+        After setting the communication to nonblocking, `flush`, `synchronise` and
+        and request-sending functions can fail with EAGAIN and EWOULDBLOCK. It is
+        safe to continue with `flush` (for `flush` it selfand equest-sending functions)
+        or `synchronise` just like EINTR failure.
+        
+        @param  nonblocking:bool  Nonblocking mode?
+        '''
+        error = _libcoopgamma_native_set_nonblocking(self.address, nonbreaking)
+        if error != 0:
+            raise ErrorReport.create_error(error)
+    
+    def flush(self):
+        '''
+        Send all pending outbound data
+        
+        If this function or another function that sends a request to the server fails
+        with EINTR, call this function to complete the transfer. The `async_ctx` parameter
+        will always be in a properly configured state if a function fails with EINTR.
+        '''
+        error = _libcoopgamma_native_flush(self.address)
+        if error != 0:
+            raise ErrorReport.create_error(error)
+    
+    def synchronise(self, pending):
+        '''
+        Wait for the next message to be received
+        
+        @param   pending:list<AsyncContext>  Information for each pending request
+        @return  :int?                       The index of the element in `pending` which corresponds
+                                             to the first inbound message, note that this only means
+                                             that the message is not for any of the other request,
+                                             if the message is corrupt any of the listed requests can
+                                             be selected even if it is not for any of the requests.
+                                             Functions that parse the message will detect such corruption.
+                                             `None` if the message is ignored, which happens if
+                                             corresponding AsyncContext is not listed.
+        '''
+        pending = [p.address for p in pending]
+        (successful, value) = _libcoopgamma_native_synchronise(self.address, pending)
+        if not successful:
+            if value == 0:
+                return None
+            else:
+                raise ErrorReport.create_error(value)
+        else:
+            return value
+    
+    def skip_message(self):
+        '''
+        Tell the library that you will not be parsing a receive message
+        '''
+        _libcoopgamma_native_skip_message(self.address)
+    
+    def get_crtcs_send(self, async_ctx):
+        '''
+        List all available CRTC:s, send request part
+        
+        @param  async_ctx:AsyncContext  Slot for information about the request that is
+                                        needed to identify and parse the response
+        '''
+        
+        error = _libcoopgamma_native_get_crtcs_send(self.address, async_ctx.address)
+        if error != 0:
+            raise ErrorReport.create_error(error)
+    
+    def get_crtcs_recv(self, async_ctx):
+        '''
+        List all available CRTC:s, receive response part
+        
+        @param   async_ctx:AsyncContext  Information about the request
+        @return  :list<str>              A list of names. You should only free the outer
+                                         pointer, inner pointers are subpointers of the
+                                         outer pointer and cannot be freed.
+        '''
+        ret = _libcoopgamma_native_get_crtcs_recv(self.address, async_ctx.address)
+        if isinstance(ret, int):
+            raise ErrorReport.create_error(ret)
+        return ret
+    
+    def get_crtcs_sync(self):
+        '''
+        List all available CRTC:s, synchronous version
+        
+        This is a synchronous request function, as such, you have to ensure that
+        communication is blocking (default), and that there are not asynchronous
+        requests waiting, it also means that EINTR:s are silently ignored and
+        there no wait to cancel the operation without disconnection from the server
+        
+        @return  :list<str>  A list of names. You should only free the outer pointer, inner
+                             pointers are subpointers of the outer pointer and cannot be freed.
+        '''
+        ret = _libcoopgamma_native_get_crtcs_sync(self.address)
+        if isinstance(ret, int):
+            raise ErrorReport.create_error(ret)
+        return ret
+    
+    def get_gamma_info_send(self, crtc, async_ctx):
+        '''
+        Retrieve information about a CRTC:s gamma ramps, send request part
+        
+        @param  crtc:str                The name of the CRT
+        @param  async_ctx:AsyncContext  Slot for information about the request that is
+                                        needed to identify and parse the response
+        '''
+        error = _libcoopgamma_native_get_gamma_info_send(crtc, self.address, async_ctx.address)
+        if error != 0:
+            raise ErrorReport.create_error(error)
+    
+    def get_gamma_info_recv(self, async_ctx):
+        '''
+        Retrieve information about a CRTC:s gamma ramps, receive response part
+        
+        @param   async_ctx:AsyncContext  Information about the request
+        @return  :CRTCInfo               Information about the CRTC
+        '''
+        value = _libcoopgamma_native_get_gamma_info_recv(self.address, async_ctx.address)
+        if isinstance(value, int):
+            raise ErrorReport.create_error(value)
+        (successful, value) = value
+        if not successful:
+            raise ErrorReport.create_error(value)
+        return CRTCInfo(*value)
+    
+    def get_gamma_info_sync(self, crtc):
+        '''
+        Retrieve information about a CRTC:s gamma ramps, synchronous version
+        
+        This is a synchronous request function, as such, you have to ensure that
+        communication is blocking (default), and that there are not asynchronous
+        requests waiting, it also means that EINTR:s are silently ignored and
+        there no wait to cancel the operation without disconnection from the server
+        
+        @param   crtc:str   The name of the CRT
+        @return  :CRTCInfo  Information about the CRTC
+        '''
+        value = _libcoopgamma_native_get_gamma_info_sync(crtc, self.address)
+        if isinstance(value, int):
+            raise ErrorReport.create_error(value)
+        (successful, value) = value
+        if not successful:
+            raise ErrorReport.create_error(value)
+        return CRTCInfo(*value)
+    
+    def get_gamma_send(self, query, async_ctx):
+        '''
+        Retrieve the current gamma ramp adjustments, send request part
+        
+        @param  query:FilterQuery       The query to send
+        @param  async_ctx:AsyncContext  Slot for information about the request that is
+                                        needed to identify and parse the response
+        '''
+        error = _libcoopgamma_native_get_gamma_send(
+                                    query, self.address, async_ctx.address)
+        if error != 0:
+            raise ErrorReport.create_error(error)
+    
+    def get_gamma_recv(self, async_ctx):
+        '''
+        Retrieve the current gamma ramp adjustments, receive response part
+        
+        @param   async_ctx:AsyncContext  Information about the request
+        @return  :FilterTable            Filter table
+        '''
+        value = _libcoopgamma_native_get_gamma_recv(self.address, async_ctx.address)
+        if isinstance(value, int):
+            raise ErrorReport.create_error(value)
+        (successful, value) = value
+        if not successful:
+            raise ErrorReport.create_error(value)
+        return FilterTable(*value)
+    
+    def get_gamma_sync(self, query):
+        '''
+        Retrieve the current gamma ramp adjustments, synchronous version
+        
+        This is a synchronous request function, as such, you have to ensure that
+        communication is blocking (default), and that there are not asynchronous
+        requests waiting, it also means that EINTR:s are silently ignored and
+        there no wait to cancel the operation without disconnection from the server
+        
+        @param   query:FilterQuery  The query to send
+        @return  :FilterTable       Filter table
+        '''
+        value = _libcoopgamma_native_get_gamma_sync(query, self.address)
+        if isinstance(value, int):
+            raise ErrorReport.create_error(value)
+        (successful, value) = value
+        if not successful:
+            raise ErrorReport.create_error(value)
+        return FilterTable(*value)
+    
+    def set_gamma_send(self, filtr, async_ctx):
+        '''
+        Apply, update, or remove a gamma ramp adjustment, send request part
+        
+        @param  filtr:Filter            The filter to apply, update, or remove, gamma ramp
+                                        meta-data must match the CRTC's
+        @param  async_ctx:AsyncContext  Slot for information about the request that is
+                                        needed to identify and parse the response
+        '''
+        error = _libcoopgamma_native_set_gamma_send(filtr, self.address, async_ctx.address)
+        if error != 0:
+            raise ErrorReport.create_error(error)
+    
+    def set_gamma_recv(self, async_ctx):
+        '''
+        Apply, update, or remove a gamma ramp adjustment, receive response part
+        
+        @param  async_ctx:AsyncContext  Information about the request
+        '''
+        error = _libcoopgamma_native_set_gamma_recv(self.address, async_ctx.address)
+        if error is not None:
+            raise ErrorReport.create_error(error)
+    
+    def set_gamma_sync(self, filtr):
+        '''
+        Apply, update, or remove a gamma ramp adjustment, synchronous version
+        
+        This is a synchronous request function, as such, you have to ensure that
+        communication is blocking (default), and that there are not asynchronous
+        requests waiting, it also means that EINTR:s are silently ignored and
+        there no wait to cancel the operation without disconnection from the server
+        
+        @param   filtr:Filter  The filter to apply, update, or remove,
+                               gamma ramp meta-data must match the CRTC's
+        '''
+        error = _libcoopgamma_native_set_gamma_sync(filtr, self.address)
+        if error is not None:
+            raise ErrorReport.create_error(error)
+
+
+class AsyncContext:
+    '''
+    Information necessary to identify and parse a response from the server
+    '''
+    def __init__(self, buf = None):
+        '''
+        Constructor
+        
+        @param  buf:bytes?  Buffer to unmarshal
+        '''
+        self.address = None
+        if buf is None:
+            (successful, value) = _libcoopgamma_native_async_context_create()
+            if not successful:
+                raise ErrorReport.create_error(value)
+        else:
+            (error, value) = _libcoopgamma_native_async_context_unmarshal(buf)
+            if error < 0:
+                raise ErrorReport.create_error(value)
+            elif error == 1:
+                raise IncompatibleDowngradeError()
+            elif error == 2:
+                raise IncompatibleUpgradeError()
+        self.address = value
+    
+    def __del__(self):
+        '''
+        Destructor
+        '''
+        if self.address is not None:
+            _libcoopgamma_native_async_context_free(self.address)
+    
+    def __repr__(self):
+        '''
+        Create a parsable string representation of the instance
+        
+        @return  :str  Parsable representation of the instance
+        '''
+        data = _libcoopgamma_native_async_context_marshal(self.address)
+        if isinstance(data, int):
+            raise ErrorReport.create_error(data)
+        return 'libcoopgamma.AsyncContext(%s)' % repr(data)
+
+
+def get_methods():
+    '''
+    List all recognised adjustment method
+    
+    SIGCHLD must not be ignored or blocked
+    
+    @return  :list<str>  A list of names. You should only free the outer pointer, inner
+                         pointers are subpointers of the outer pointer and cannot be freed.
+    '''
+    ret = _libcoopgamma_native_get_methods()
+    if isinstance(ret, int):
+        raise ErrorReport.create_error(ret)
+    return ret
+
+
+def get_method_and_site(method = None, site = None):
+    '''
+    Get the adjustment method and site
+    
+    SIGCHLD must not be ignored or blocked
+    
+    @param   method:int|str?  The adjustment method, `None` for automatic
+    @param   site:str?        The site, `None` for automatic
+    @return  :(:str, :str?)   The selected adjustment method and the selected the
+                              selected site. If the adjustment method only supports
+                              one site or if `site` is `None` and no site can be
+                              selected automatically, the selected site (the second
+                              element in the returned tuple) will be `None`.
+    '''
+    if method is not None:
+        method = str(method)
+    ret = _libcoopgamma_native_get_method_and_site(method, site)
+    if isinstance(ret, int):
+        raise ErrorReport.create_error(ret)
+    return ret
+
+
+def get_pid_file(method = None, site = None):
+    '''
+    Get the PID file of the coopgamma server
+    
+    SIGCHLD must not be ignored or blocked
+    
+    @param   method:int|str?  The adjustment method, `None` for automatic
+    @param   site:str?        The site, `None` for automatic
+    @return  :str?            The pathname of the server's PID file.
+                              `None` if the server does not use PID files.
+    '''
+    if method is not None:
+        method = str(method)
+    ret = _libcoopgamma_native_get_pid_file(method, site)
+    if ret is not None and isinstance(ret, int):
+        raise ErrorReport.create_error(ret)
+    return ret
+
+
+def get_socket_file(method = None, site = None):
+    '''
+    Get the socket file of the coopgamma server
+    
+    SIGCHLD must not be ignored or blocked
+    
+    @param   method:int|str?  The adjustment method, `None` for automatic
+    @param   site:str?        The site, `None` for automatic
+    @return  :str?            The pathname of the server's socket, `None` if the server does have
+                              its own socket, which is the case when communicating with a server
+                              in a multi-server display server like mds
+    '''
+    if method is not None:
+        method = str(method)
+    ret = _libcoopgamma_native_get_socket_file(method, site)
+    if ret is not None and isinstance(ret, int):
+        raise ErrorReport.create_error(ret)
+    return ret
diff --git a/src/include-libcoopgamma.h b/src/include-libcoopgamma.h
deleted file mode 100644
index 5150bf3..0000000
--- a/src/include-libcoopgamma.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/**
- * pylibcoopgamma -- Python library for interfacing with cooperative gamma servers
- * Copyright (C) 2016  Mattias Andrée (maandree@kth.se)
- * 
- * This library is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- * 
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this library.  If not, see <http://www.gnu.org/licenses/>.
- */
-#include <libcoopgamma.h>
-
-
-#define fclass        class
-#define u_red_size    u8.red_size
-#define u_green_size  u8.green_size
-#define u_blue_size   u8.blue_size
-#define u_red         u8.red
-#define u_green       u8.green
-#define u_blue        u8.blue
-
diff --git a/src/libcoopgamma.py b/src/libcoopgamma.py
deleted file mode 100644
index 37856c1..0000000
--- a/src/libcoopgamma.py
+++ /dev/null
@@ -1,1205 +0,0 @@
-# -*- python -*-
-'''
-pylibcoopgamma -- Python library for interfacing with cooperative gamma servers
-Copyright (C) 2016  Mattias Andrée (maandree@kth.se)
-
-This library is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this library.  If not, see <http://www.gnu.org/licenses/>.
-'''
-
-import enum, libcoopgamma_native
-
-
-class Support(enum.IntEnum):
-    '''
-    Values used to indicate the support for gamma adjustments
-    
-    @value  NO=0     Gamma adjustments are not supported
-    @value  MAYBE=1  Don't know whether gamma adjustments are supported
-    @value  YES=2    Gamma adjustments are supported
-    '''
-    NO = 0
-    MAYBE = 1
-    YES = 2
-    
-    @staticmethod
-    def str(v):
-        '''
-        Get string representation of a value
-        
-        @param   v:int  The value, must be value of the enum
-        @return  :str   Human-readable string representation of the value
-        '''
-        if v == Support.NO:
-            return 'no'
-        if v == Support.YES:
-            return 'yes'
-        if v == Support.MAYBE:
-            return 'maybe'
-        raise ValueError()
-
-
-class Depth(enum.IntEnum):
-    '''
-    Values used to tell which datatype is used for the gamma ramp stops
-    
-    The values will always be the number of bits for integral types, and
-    negative for floating-point types
-    
-    @value  UINT8=8    Unsigned 8-bit integer
-    @value  UINT16=16  Unsigned 16-bit integer
-    @value  UINT32=32  Unsigned 32-bit integer
-    @value  UINT64=64  Unsigned 64-bit integer
-    @value  FLOAT<0    Single-precision floating-point
-    @value  DOUBLE<0   Double-precision floating-point
-    '''
-    UINT8 = 8
-    UINT16 = 16
-    UINT32 = 32
-    UINT64 = 64
-    FLOAT = -1
-    DOUBLE = -2
-    
-    @staticmethod
-    def str(v):
-        '''
-        Get string representation of a value
-        
-        @param   v:int  The value, must be value of the enum
-        @return  :str   Human-readable string representation of the value
-        '''
-        if v == Depth.UINT8:
-            return '8-bits'
-        if v == Depth.UINT16:
-            return '16-bits'
-        if v == Depth.UINT32:
-            return '32-bits'
-        if v == Depth.UINT64:
-            return '64-bits'
-        if v == Depth.FLOAT:
-            return 'single-precision floating-point'
-        if v == Depth.DOUBLE:
-            return 'double-precision floating-point'
-        raise ValueError()
-
-
-class Lifespan(enum.IntEnum):
-    '''
-    Values used to tell when a filter should be removed
-    
-    @value  REMOVE=0         Remove the filter now
-    @value  UNTIL_DEATH>0    Remove the filter when disconnecting from the coopgamma server
-    @value  UNTIL_REMOVAL>0  Only remove the filter when it is explicitly requested
-    '''
-    REMOVE = 0
-    UNTIL_DEATH = 1
-    UNTIL_REMOVAL = 2
-    
-    @staticmethod
-    def str(v):
-        '''
-        Get string representation of a value
-        
-        @param   v:int  The value, must be value of the enum
-        @return  :str   Human-readable string representation of the value
-        '''
-        if v == Lifespan.REMOVE:
-            return 'remove'
-        if v == Lifespan.UNTIL_DEATH:
-            return 'until death'
-        if v == Lifespan.UNTIL_REMOVAL:
-            return 'until removal'
-        raise ValueError()
-
-
-class Colourspace(enum.IntEnum):
-    '''
-    Colourspaces
-    
-    @value  UNKNOWN=0  The colourspace is unknown
-    @value  SRGB>0     sRGB (Standard RGB)
-    @value  RGB>0      RGB other than sRGB
-    @value  NON_RGB>0  Non-RGB multicolour
-    @value  GREY>0     Monochrome, greyscale, or some other singlecolour scale
-    '''
-    UNKNOWN = 0
-    SRGB = 1
-    RGB = 2
-    NON_RGB = 3
-    GREY = 4
-    
-    @staticmethod
-    def str(v):
-        '''
-        Get string representation of a value
-        
-        @param   v:int  The value, must be value of the enum
-        @return  :str   Human-readable string representation of the value
-        '''
-        if v == Colourspace.UNKNOWN:
-            return 'unknown'
-        if v == Colourspace.SRGB:
-            return 'sRGB'
-        if v == Colourspace.RGB:
-            return 'RGB'
-        if v == Colourspace.NON_RGB:
-            return 'non-RGB'
-        if v == Colourspace.GREY:
-            return 'greyscale'
-        raise ValueError()
-
-
-class Ramps:
-    '''
-    Gamma ramp structure
-    
-    @variable  red:list<int>    The red gamma ramp
-    @variable  green:list<int>  The green gamma ramp
-    @variable  blue:list<int>   The blue gamma ramp
-    '''
-    def __init__(self, red, green, blue):
-        '''
-        Constructor
-        
-        @param  red:int    The number of stops in the red ramp
-        @param  green:int  The number of stops in the green ramp
-        @param  blue:int   The number of stops in the blue ramp
-        
-        -- or --
-        
-        @param  red:list<int>    The red gamma ramp
-        @param  green:list<int>  The green gamma ramp
-        @param  blue:list<int>   The blue gamma ramp
-        '''
-        if isinstance(red, list):
-            self.red   = list(red)
-            self.green = list(green)
-            self.blue  = list(blue)
-        else:
-            self.red   = [0] * red
-            self.green = [0] * green
-            self.blue  = [0] * blue
-    
-    def clone(self):
-        '''
-        Create a copy of the instance
-        '''
-        return Ramps(self.red, self.green, self.blue)
-    
-    def __repr__(self):
-        '''
-        Create a parsable string representation of the instance
-        
-        @return  :str  Parsable representation of the instance
-        '''
-        params = (self.red, self.green, self.blue)
-        return 'libcoopgamma.Ramps(%s)' % ', '.join(repr(p) for p in params)
-
-
-class Filter:
-    '''
-    Data set to the coopgamma server to apply, update, or remove a filter
-    
-    @variable  priority:int       The priority of the filter, higher priority
-                                  is applied first. The gamma correction should
-                                  have priority 0. This is a signed 64-bit integer.
-    @variable  crtc:str           The CRTC for which this filter shall be applied 
-    @variable  fclass:str         Identifier for the filter.
-                                  The syntax must be "${PACKAGE_NAME}::${COMMAND_NAME}::${RULE}".
-    @variable  lifespan:Lifespan  When shall the filter be removed?
-                                  If this member's value is `LIBCOOPGAMMA_REMOVE`,
-                                  only `.crtc` and `.class` need also be defined.
-    @variable  depth:Depth        The data type and bit-depth of the ramp stops
-    @variable  ramps:Ramps        The gamma ramp adjustments of the filter
-    '''
-    def __init__(self, priority = None, crtc = None, fclass = None, lifespan = None, depth = None, ramps = None):
-        '''
-        Constructor
-        
-        @param  priority:int       The priority of the filter, higher priority
-                                   is applied first. The gamma correction should
-                                   have priority 0. This is a signed 64-bit integer.
-        @param  crtc:str           The CRTC for which this filter shall be applied 
-        @param  fclass:str         Identifier for the filter.
-                                   The syntax must be "${PACKAGE_NAME}::${COMMAND_NAME}::${RULE}".
-        @param  lifespan:Lifespan  When shall the filter be removed?
-                                   If this member's value is `LIBCOOPGAMMA_REMOVE`,
-                                   only `.crtc` and `.class` need also be defined.
-        @param  depth:Depth        The data type and bit-depth of the ramp stops
-        @param  ramps:Ramps        The gamma ramp adjustments of the filter
-        '''
-        self.priority = priority
-        self.crtc = crtc
-        self.fclass = fclass
-        self.lifespan = lifespan
-        self.depth = depth
-        self.ramps = ramps
-    
-    def clone(self, shallow = False):
-        '''
-        Create a copy of the instance
-        
-        @param  shallow:bool  Create a shallow copy?
-        '''
-        ramps = self.ramps if shallow else self.ramps.clone()
-        return Filter(self.priority, self.crtc, self.fclass, self.lifespan, self.depth, ramps)
-    
-    def __repr__(self):
-        '''
-        Create a parsable string representation of the instance
-        
-        @return  :str  Parsable representation of the instance
-        '''
-        params = (self.priority, self.crtc, self.fclass, self.lifespan, self.depth, self.ramps)
-        return 'libcoopgamma.Filter(%s)' % ', '.join(repr(p) for p in params)
-
-
-class GamutPoint:
-    '''
-    The x- and y-values (CIE xyY) of a colour
-    
-    @variable  x_raw:int  The x-value (CIE xyY) multiplied by 1024
-    @variable  y_raw:int  The y-value (CIE xyY) multiplied by 1024
-    @variable  x:int      The x-value (CIE xyY)
-    @variable  y:int      The y-value (CIE xyY)
-    '''
-    def __init__(self, x, y):
-        '''
-        Constructor
-        
-        @param  x:int  The x-value (CIE xyY) multiplied by 1024
-        @param  y:int  The y-value (CIE xyY) multiplied by 1024
-        '''
-        self.x_raw, self.x = x, x / 1024
-        self.y_raw, self.y = y, y / 1024
-    
-    def clone(self):
-        '''
-        Create a copy of the instance
-        '''
-        return GamutPoint(self.x_raw, self.y_raw)
-    
-    def __repr__(self):
-        '''
-        Create a parsable string representation of the instance
-        
-        @return  :str  Parsable representation of the instance
-        '''
-        params = (self.x_raw, self.y_raw)
-        return 'libcoopgamma.GamutPoint(%s)' % ', '.join(repr(p) for p in params)
-    
-    def __str__(self):
-        '''
-        Get human-readable string representation of instance
-        
-        @return  :str  Human-readable string representation of instance
-        '''
-        return '(%f, %f)' % (self.x, self.y)
-
-
-class Gamut:
-    '''
-    The values of the monitor's colour stimuli
-    
-    @variable  red:GamutPoint    The red stimuli
-    @variable  green:GamutPoint  The green stimuli
-    @variable  blue:GamutPoint   The blue stimuli
-    @variable  white:GamutPoint  The default whitepoint
-    '''
-    def __init__(self, red = None, green = None, blue = None, white = None):
-        '''
-        Constructor
-        
-        @param  red:GamutPoint|(int, int)    The red stimuli
-        @param  green:GamutPoint|(int, int)  The green stimuli
-        @param  blue:GamutPoint|(int, int)   The blue stimuli
-        @param  white:GamutPoint|(int, int)  The default whitepoint
-        '''
-        self.red   = GamutPoint(*red)   if isinstance(red,   tuple) else red
-        self.green = GamutPoint(*green) if isinstance(green, tuple) else green
-        self.blue  = GamutPoint(*blue)  if isinstance(blue,  tuple) else blue
-        self.white = GamutPoint(*white) if isinstance(white, tuple) else white
-    
-    def clone(self, shallow = True):
-        '''
-        Create a copy of the instance
-        
-        @param  shallow:bool  Create a shallow copy?
-        '''
-        if shallow:
-            return Gamut(self.red, self.green, self.blue, self.white)
-        return Gamut(self.red.clone(), self.green.clone(), self.blue.clone(), self.white.clone())
-    
-    def __repr__(self):
-        '''
-        Create a parsable string representation of the instance
-        
-        @return  :str  Parsable representation of the instance
-        '''
-        params = (repr(self.red), repr(self.green), repr(self.blue), repr(self.white))
-        return 'libcoopgamma.Gamut(%s)' % ', '.join(repr(p) for p in params)
-
-
-class CRTCInfo:
-    '''
-    Gamma ramp meta information for a CRTC
-    
-    @variable  cooperative:bool         Is cooperative gamma server running?
-    @variable  depth:Depth?             The data type and bit-depth of the ramp stops
-    @variable  supported:Support        Is gamma adjustments supported on the CRTC?
-                                        If not, `depth`, `red_size`, `green_size`,
-                                        and `blue_size` are undefined
-    @variable  red_size:int?            The number of stops in the red ramp
-    @variable  green_size:int?          The number of stops in the green ramp
-    @variable  blue_size:int?           The number of stops in the blue ramp
-    @variable  colourspace:Colourspace  The monitor's colourspace
-    @variable  gamut:Gamut?             Measurements of the monitor's colourspace,
-                                        `None` if the this information is unavailable.
-                                        If this is not `None`, but the colourspace
-                                        is not RGB (or sRGB), there is something
-                                        wrong. Always check the colourspace.
-    '''
-    def __init__(self, cooperative = None, depth = None, supported = None, red_size = None,
-                 green_size = None, blue_size = None, colourspace = None, gamut = None):
-        '''
-        Constructor
-        
-        @param  cooperative:bool         Is cooperative gamma server running?
-        @param  depth:Depth?             The data type and bit-depth of the ramp stops
-        @param  supported:Support        Is gamma adjustments supported on the CRTC?
-                                         If not, `depth`, `red_size`, `green_size`,
-                                         and `blue_size` are undefined
-        @param  red_size:int?            The number of stops in the red ramp
-        @param  green_size:int?          The number of stops in the green ramp
-        @param  blue_size:int?           The number of stops in the blue ramp
-        @param  colourspace:Colourspace  The monitor's colourspace
-        @param  gamut:Gamut|tuple?       Measurements of the monitor's colourspace,
-                                         `None` if the this information is unavailable
-        '''
-        self.cooperative = cooperative
-        self.depth = depth
-        self.supported = supported
-        self.red_size = red_size
-        self.green_size = green_size
-        self.blue_size = blue_size
-        self.colourspace = colourspace
-        if gamut is None or isinstance(gamut, Gamut):
-            self.gamut = gamut
-        else:
-            self.gamut = Gamut(*gamut)
-    
-    def make_ramps(self):
-        '''
-        Construct a `Ramps` instances for this CRTC
-        
-        @return  :Ramps  An instance of `Ramps` with same a number of ramp stops
-                         matching this CRTC
-        '''
-        return Ramps(self.red_size, self.green_size, self.blue_size)
-    
-    def clone(self, shallow = True):
-        '''
-        Create a copy of the instance
-        
-        @param  shallow:bool  Create a shallow copy?
-        '''
-        return CRTCInfo(self.cooperative, self.depth, self.supported, self.red_size,
-                        self.green_size, self.blue_size, self.colourspace,
-                        self.gamut if shallow else self.gamut.clone())
-    
-    def __repr__(self):
-        '''
-        Create a parsable string representation of the instance
-        
-        @return  :str  Parsable representation of the instance
-        '''
-        params = (self.cooperative, self.depth, self.supported, self.red_size,
-                  self.green_size, self.blue_size, self.colourspace, self.gamut)
-        return 'libcoopgamma.CRTCInfo(%s)' % ', '.join(repr(p) for p in params)
-
-
-class FilterQuery:
-    '''
-    Data sent to the coopgamma server when requestng the current filter table
-    
-    @variable  high_priority:int  Do no return filters with higher priority than
-                                  this value. This is a signed 64-bit integer.
-    @variable  low_priority:int   Do no return filters with lower priority than
-                                  this value. This is a signed 64-bit integer.
-    @variable  crtc:str           The CRTC for which the the current filters shall returned
-    @variable  coalesce:bool      Whether to coalesce all filters into one gamma ramp triplet
-    '''
-    def __init__(self, high_priority = 9223372036854775807,
-                 low_priority = -9223372036854775808, crtc = None, coalesce = False):
-        '''
-        Constructor
-        
-        @param  high_priority:int  Do no return filters with higher priority than
-                                   this value. This is a signed 64-bit integer.
-        @param  low_priority:int   Do no return filters with lower priority than
-                                   this value. This is a signed 64-bit integer.
-        @param  crtc:str           The CRTC for which the the current filters shall returned
-        @param  coalesce:bool      Whether to coalesce all filters into one gamma ramp triplet
-        '''
-        self.high_priority = high_priority
-        self.low_priority = low_priority
-        self.crtc = crtc
-        self.coalesce = coalesce
-    
-    def clone(self):
-        '''
-        Create a copy of the instance
-        '''
-        return FilterQuery(self.high_priority, self.low_priority, self.crtc, self.coalesce)
-    
-    def __repr__(self):
-        '''
-        Create a parsable string representation of the instance
-        
-        @return  :str  Parsable representation of the instance
-        '''
-        params = (self.high_priority, self.low_priority, self.crtc, self.coalesce)
-        return 'libcoopgamma.FilterQuery(%s)' % ', '.join(repr(p) for p in params)
-
-
-class QueriedFilter:
-    '''
-    Stripped down version of `Filter` which only contains the
-    information returned in response to "Command: get-gamma"
-    
-    @variable  priority:int  The filter's priority. This is a signed 64-bit integer.
-    @variable  fclass:str    The filter's class
-    @variable  ramps:Ramps   The gamma ramp adjustments of the filter
-    '''
-    def __init__(self, priority = None, fclass = None, ramps = None):
-        '''
-        Constructor
-        
-        @param  priority:int       The filter's priority. This is a signed 64-bit integer.
-        @param  fclass:str         The filter's class
-        @param  ramps:Ramps|tuple  The gamma ramp adjustments of the filter
-        '''
-        self.priority = priority
-        self.fclass = fclass
-        self.ramps = None
-        if ramps is not None:
-            self.ramps = Ramps(*ramps) if isinstance(ramps, tuple) else ramps
-    
-    def clone(self, shallow = False):
-        '''
-        Create a copy of the instance
-        
-        @param  shallow:bool  Create a sallow copy?
-        '''
-        ramps = self.ramps if shallow else self.ramps.clone()
-        return QueriedFilter(self.priority, self.fclass, ramps)
-    
-    def __repr__(self):
-        '''
-        Create a parsable string representation of the instance
-        
-        @return  :str  Parsable representation of the instance
-        '''
-        params = (self.priority, self.fclass, self.ramps)
-        return 'libcoopgamma.QueriedFilter(%s)' % ', '.join(repr(p) for p in params)
-
-
-class FilterTable:
-    '''
-    Response type for "Command: get-gamma": a list of applied filters
-    and meta-information that was necessary for decoding the response
-    
-    @variable  red_size:int                 The number of stops in the red ramp
-    @variable  green_size:int               The number of stops in the green ramp
-    @variable  blue_size:int                The number of stops in the blue ramp
-    @variable  depth:Depth                  The data type and bit-depth of the ramp stops
-    @variable  filters:list<QueriedFilter>  The filters, should be ordered by priority
-                                            in descending order, lest there is something
-                                            wrong with the coopgamma server.
-                                            If filter coalition was requested, there will
-                                            be exactly one filter and `filters[0].class`
-                                            and `filters[0].priority` are undefined.
-    '''
-    def __init__(self, red_size = None, green_size = None, blue_size = None, depth = None, filters = None):
-        '''
-        Constructor 
-        
-        @param  red_size:int                       The number of stops in the red ramp
-        @param  green_size:int                     The number of stops in the green ramp
-        @param  blue_size:int                      The number of stops in the blue ramp
-        @param  depth:Depth                        The data type and bit-depth of the ramp stops
-        @param  filters:list<QueriedFilter|tuple>  The filters, should be ordered by priority
-                                                   in descending order, lest there is something
-                                                   wrong with the coopgamma server.
-                                                   If filter coalition was requested, there will
-                                                   be exactly one filter and `filters[0].class`
-                                                   and `filters[0].priority` are undefined.
-        '''
-        self.red_size   = red_size
-        self.green_size = green_size
-        self.blue_size  = blue_size
-        self.depth      = depth
-        if filters is None:
-            self.filters
-        else:
-            self.filters    = list(QueriedFilter(*f) if isinstance(f, tuple) else f for f in filters)
-    
-    def make_ramps(self):
-        '''
-        Construct a `Ramps` instances for this CRTC
-        
-        @return  :Ramps  An instance of `Ramps` with same a number of ramp stops
-                         matching this CRTC
-        '''
-        return Ramps(self.red_size, self.green_size, self.blue_size)
-    
-    def clone(self, shallow = False):
-        '''
-        Create a copy of the instance
-        
-        @param  shallow:bool  Create a sallow copy?
-        '''
-        filters = list(self.filters) if shallow else [f.clone() for f in self.filters]
-        return FilterTable(self.red_size, self.green_size, self.blue_size, self.depth, filters)
-    
-    def __repr__(self):
-        '''
-        Create a parsable string representation of the instance
-        
-        @return  :str  Parsable representation of the instance
-        '''
-        params = (self.red_size, self.green_size, self.blue_size, self.depth, self.filters)
-        return 'libcoopgamma.FilterTable(%s)' % ', '.join(repr(p) for p in params)
-
-
-class ErrorReport:
-    '''
-    Error message from coopgamma server
-    
-    @variable  number:int        The error code. If `.custom` is false, 0 indicates success,
-                                 otherwise, 0 indicates that no error code has been assigned.
-    @variable  custom:bool       Is this a custom error?
-    @variable  server_side:bool  Did the error occur on the server-side?
-    @variable  description:str?  Error message, can be `None` if `custom` is false
-    '''
-    def __init__(self, number = None, custom = None, server_side = None, description = None):
-        '''
-        Constructor
-        
-        @param  number:int        The error code. If `.custom` is false, 0 indicates success,
-                                  otherwise, 0 indicates that no error code has been assigned.
-        @param  custom:bool       Is this a custom error?
-        @param  server_side:bool  Did the error occur on the server-side?
-        @param  description:str?  Error message, can be `None` if `custom` is false
-        '''
-        self.number = number
-        self.custom = custom
-        self.server_side = server_side
-        self.description = description
-    
-    def clone(self):
-        '''
-        Create a copy of the instance
-        '''
-        return ErrorReport(self.number, self.custom, self.server_side, self.description)
-    
-    def __repr__(self):
-        '''
-        Create a parsable string representation of the instance
-        
-        @return  :str  Parsable representation of the instance
-        '''
-        params = (self.number, self.custom, self.server_side, self.description)
-        return 'libcoopgamma.ErrorReport(%s)' % ', '.join(repr(p) for p in params)
-    
-    @staticmethod
-    def create_error(error):
-        '''
-        Create an instance of a subclass of `Exception`
-        
-        @param  error  Error information
-        '''
-        if isinstance(error, int):
-            import os
-            return OSError(error, os.strerror(error))
-        error = ErrorReport(*error)
-        if not error.custom and not error.server_side:
-            import os
-            return OSError(error.number, os.strerror(error.number))
-        else:
-            return LibcoopgammaError(error)
-
-
-class LibcoopgammaError(Exception):
-    '''
-    libcoopgamma error class
-    
-    @variable  error:ErrorReport  Error information
-    '''
-    def __init__(self, error):
-        '''
-        Constructor
-        
-        @param  error:ErrorReport  Error information
-        '''
-        self.error = error
-    
-    def __str__(self):
-        '''
-        Return description and error number as a string
-        
-        @return  :str  Description and error number
-        '''
-        if self.error.description is not None:
-            if self.error.number != 0:
-                return '%s (#%i)' % (self.error.description, self.error.number)
-            else:
-                return '%s' % self.error.description
-        else:
-            return '#%i' % self.error.number
-    
-    def __repr__(self):
-        '''
-        Create a parsable string representation of the instance
-        
-        @return  :str  Parsable representation of the instance
-        '''
-        return 'libcoopgamma.LibcoopgammaError(%s)' % repr(self.error)
-
-
-class IncompatibleDowngradeError(Exception):
-    '''
-    Unmarshalled state from a newer version, that is not supported, of libcoopgamma
-    '''
-    def __init__(self):
-        '''
-        Constructor
-        '''
-        pass
-    
-    def __str__(self):
-        '''
-        Return descriptor of the error
-        
-        @return  :str  Descriptor of the error
-        '''
-        return 'Incompatible downgrade error'
-    
-    def __repr__(self):
-        '''
-        Create a parsable string representation of the instance
-        
-        @return  :str  Parsable representation of the instance
-        '''
-        return 'libcoopgamma.IncompatibleDowngradeError()'
-
-
-class IncompatibleUpgradeError(Exception):
-    '''
-    Unmarshalled state from an older version, that is no longer supported, of libcoopgamma
-    '''
-    def __init__(self):
-        '''
-        Constructor
-        '''
-        pass
-    
-    def __str__(self):
-        '''
-        Return descriptor of the error
-        
-        @return  :str  Descriptor of the error
-        '''
-        return 'Incompatible downgrade error'
-    
-    def __repr__(self):
-        '''
-        Create a parsable string representation of the instance
-        
-        @return  :str  Parsable representation of the instance
-        '''
-        return 'libcoopgamma.IncompatibleUpgradeErrorError()'
-
-
-class ServerInitialisationError(Exception):
-    '''
-    coopgamma server failed to initialise, reason unknown
-    '''
-    def __init__(self):
-        '''
-        Constructor
-        '''
-        pass
-    
-    def __str__(self):
-        '''
-        Return descriptor of the error
-        
-        @return  :str  Descriptor of the error
-        '''
-        return 'Server initialisation error'
-    
-    def __repr__(self):
-        '''
-        Create a parsable string representation of the instance
-        
-        @return  :str  Parsable representation of the instance
-        '''
-        return 'libcoopgamma.ServerInitialisationError()'
-
-
-class Context:
-    '''
-    Library state
-    
-    Use of this structure is not thread-safe, create
-    one instance per thread that uses this structure
-    
-    @variable  fd:int  File descriptor for the socket
-    '''
-    def __init__(self, fd = -1, buf = None):
-        '''
-        Constructor
-        
-        @param  fd:int      File descriptor for the socket
-        @param  buf:bytes?  Buffer to unmarshal
-        '''
-        self.address = None
-        self.fd = fd
-        if buf is None:
-            (successful, value) = libcoopgamma_native.libcoopgamma_native_context_create()
-            if not successful:
-                raise ErrorReport.create_error(value)
-        else:
-            (error, value) = libcoopgamma_native.libcoopgamma_native_context_unmarshal(buf)
-            if error < 0:
-                raise ErrorReport.create_error(value)
-            elif error == 1:
-                raise IncompatibleDowngradeError()
-            elif error == 2:
-                raise IncompatibleUpgradeError()
-        self.address = value
-    
-    def __del__(self):
-        '''
-        Destructor
-        '''
-        if self.address is not None:
-            libcoopgamma_native.libcoopgamma_native_context_free(self.address)
-    
-    def __repr__(self):
-        '''
-        Create a parsable string representation of the instance
-        
-        @return  :str  Parsable representation of the instance
-        '''
-        data = libcoopgamma_native.libcoopgamma_native_context_marshal(self.address)
-        if isinstance(data, int):
-            raise ErrorReport.create_error(data)
-        params = (self.fd, data)
-        return 'libcoopgamma.Context(%s)' % ', '.join(repr(p) for p in params)
-    
-    def connect(self, method = None, site = None):
-        '''
-        Connect to a coopgamma server, and start it if necessary
-        
-        Use `del` keyword to disconnect
-        
-        SIGCHLD must not be ignored or blocked
-        
-        All other methods in this class requires that this
-        method has been called successfully
-        
-        @param  method:int|str?  The adjustment method, `None` for automatic
-        @param  site:str?        The site, `None` for automatic
-        '''
-        if method is not None and isinstance(method, int):
-            method = str(method)
-        (successful, value) = libcoopgamma_native.libcoopgamma_native_connect(method, site, self.address)
-        if not successful:
-            if value == 0:
-                raise ServerInitialisationError()
-            else:
-                raise ErrorReport.create_error(value)
-        self.fd = value
-    
-    def detach(self):
-        '''
-        After calling this function, communication with the
-        server is impossible, but the connection is not
-        closed and the when the instance is destroyed the
-        connection will remain
-        '''
-        libcoopgamma_native.libcoopgamma_native_context_set_fd(self.address, -1)
-    
-    def attach(self):
-        '''
-        Undoes the action of `detach`
-        '''
-        libcoopgamma_native.libcoopgamma_native_context_set_fd(self.address, self.fd)
-    
-    def set_nonbreaking(self, nonbreaking):
-        '''
-        By default communication is blocking, this function
-        can be used to switch between blocking and nonblocking
-        
-        After setting the communication to nonblocking, `flush`, `synchronise` and
-        and request-sending functions can fail with EAGAIN and EWOULDBLOCK. It is
-        safe to continue with `flush` (for `flush` it selfand equest-sending functions)
-        or `synchronise` just like EINTR failure.
-        
-        @param  nonblocking:bool  Nonblocking mode?
-        '''
-        error = libcoopgamma_native.libcoopgamma_native_set_nonblocking(self.address, nonbreaking)
-        if error != 0:
-            raise ErrorReport.create_error(error)
-    
-    def flush(self):
-        '''
-        Send all pending outbound data
-        
-        If this function or another function that sends a request to the server fails
-        with EINTR, call this function to complete the transfer. The `async_ctx` parameter
-        will always be in a properly configured state if a function fails with EINTR.
-        '''
-        error = libcoopgamma_native.libcoopgamma_native_flush(self.address)
-        if error != 0:
-            raise ErrorReport.create_error(error)
-    
-    def synchronise(self, pending):
-        '''
-        Wait for the next message to be received
-        
-        @param   pending:list<AsyncContext>  Information for each pending request
-        @return  :int?                       The index of the element in `pending` which corresponds
-                                             to the first inbound message, note that this only means
-                                             that the message is not for any of the other request,
-                                             if the message is corrupt any of the listed requests can
-                                             be selected even if it is not for any of the requests.
-                                             Functions that parse the message will detect such corruption.
-                                             `None` if the message is ignored, which happens if
-                                             corresponding AsyncContext is not listed.
-        '''
-        pending = [p.address for p in pending]
-        (successful, value) = libcoopgamma_native.libcoopgamma_native_synchronise(self.address, pending)
-        if not successful:
-            if value == 0:
-                return None
-            else:
-                raise ErrorReport.create_error(value)
-        else:
-            return value
-    
-    def skip_message(self):
-        '''
-        Tell the library that you will not be parsing a receive message
-        '''
-        libcoopgamma_native.libcoopgamma_native_skip_message(self.address)
-    
-    def get_crtcs_send(self, async_ctx):
-        '''
-        List all available CRTC:s, send request part
-        
-        @param  async_ctx:AsyncContext  Slot for information about the request that is
-                                        needed to identify and parse the response
-        '''
-        
-        error = libcoopgamma_native.libcoopgamma_native_get_crtcs_send(self.address, async_ctx.address)
-        if error != 0:
-            raise ErrorReport.create_error(error)
-    
-    def get_crtcs_recv(self, async_ctx):
-        '''
-        List all available CRTC:s, receive response part
-        
-        @param   async_ctx:AsyncContext  Information about the request
-        @return  :list<str>              A list of names. You should only free the outer
-                                         pointer, inner pointers are subpointers of the
-                                         outer pointer and cannot be freed.
-        '''
-        ret = libcoopgamma_native.libcoopgamma_native_get_crtcs_recv(self.address, async_ctx.address)
-        if isinstance(ret, int):
-            raise ErrorReport.create_error(ret)
-        return ret
-    
-    def get_crtcs_sync(self):
-        '''
-        List all available CRTC:s, synchronous version
-        
-        This is a synchronous request function, as such, you have to ensure that
-        communication is blocking (default), and that there are not asynchronous
-        requests waiting, it also means that EINTR:s are silently ignored and
-        there no wait to cancel the operation without disconnection from the server
-        
-        @return  :list<str>  A list of names. You should only free the outer pointer, inner
-                             pointers are subpointers of the outer pointer and cannot be freed.
-        '''
-        ret = libcoopgamma_native.libcoopgamma_native_get_crtcs_sync(self.address)
-        if isinstance(ret, int):
-            raise ErrorReport.create_error(ret)
-        return ret
-    
-    def get_gamma_info_send(self, crtc, async_ctx):
-        '''
-        Retrieve information about a CRTC:s gamma ramps, send request part
-        
-        @param  crtc:str                The name of the CRT
-        @param  async_ctx:AsyncContext  Slot for information about the request that is
-                                        needed to identify and parse the response
-        '''
-        error = libcoopgamma_native.libcoopgamma_native_get_gamma_info_send(crtc, self.address, async_ctx.address)
-        if error != 0:
-            raise ErrorReport.create_error(error)
-    
-    def get_gamma_info_recv(self, async_ctx):
-        '''
-        Retrieve information about a CRTC:s gamma ramps, receive response part
-        
-        @param   async_ctx:AsyncContext  Information about the request
-        @return  :CRTCInfo               Information about the CRTC
-        '''
-        value = libcoopgamma_native.libcoopgamma_native_get_gamma_info_recv(self.address, async_ctx.address)
-        if isinstance(value, int):
-            raise ErrorReport.create_error(value)
-        (successful, value) = value
-        if not successful:
-            raise ErrorReport.create_error(value)
-        return CRTCInfo(*value)
-    
-    def get_gamma_info_sync(self, crtc):
-        '''
-        Retrieve information about a CRTC:s gamma ramps, synchronous version
-        
-        This is a synchronous request function, as such, you have to ensure that
-        communication is blocking (default), and that there are not asynchronous
-        requests waiting, it also means that EINTR:s are silently ignored and
-        there no wait to cancel the operation without disconnection from the server
-        
-        @param   crtc:str   The name of the CRT
-        @return  :CRTCInfo  Information about the CRTC
-        '''
-        value = libcoopgamma_native.libcoopgamma_native_get_gamma_info_sync(crtc, self.address)
-        if isinstance(value, int):
-            raise ErrorReport.create_error(value)
-        (successful, value) = value
-        if not successful:
-            raise ErrorReport.create_error(value)
-        return CRTCInfo(*value)
-    
-    def get_gamma_send(self, query, async_ctx):
-        '''
-        Retrieve the current gamma ramp adjustments, send request part
-        
-        @param  query:FilterQuery       The query to send
-        @param  async_ctx:AsyncContext  Slot for information about the request that is
-                                        needed to identify and parse the response
-        '''
-        error = libcoopgamma_native.libcoopgamma_native_get_gamma_send(
-                                    query, self.address, async_ctx.address)
-        if error != 0:
-            raise ErrorReport.create_error(error)
-    
-    def get_gamma_recv(self, async_ctx):
-        '''
-        Retrieve the current gamma ramp adjustments, receive response part
-        
-        @param   async_ctx:AsyncContext  Information about the request
-        @return  :FilterTable            Filter table
-        '''
-        value = libcoopgamma_native.libcoopgamma_native_get_gamma_recv(self.address, async_ctx.address)
-        if isinstance(value, int):
-            raise ErrorReport.create_error(value)
-        (successful, value) = value
-        if not successful:
-            raise ErrorReport.create_error(value)
-        return FilterTable(*value)
-    
-    def get_gamma_sync(self, query):
-        '''
-        Retrieve the current gamma ramp adjustments, synchronous version
-        
-        This is a synchronous request function, as such, you have to ensure that
-        communication is blocking (default), and that there are not asynchronous
-        requests waiting, it also means that EINTR:s are silently ignored and
-        there no wait to cancel the operation without disconnection from the server
-        
-        @param   query:FilterQuery  The query to send
-        @return  :FilterTable       Filter table
-        '''
-        value = libcoopgamma_native.libcoopgamma_native_get_gamma_sync(query, self.address)
-        if isinstance(value, int):
-            raise ErrorReport.create_error(value)
-        (successful, value) = value
-        if not successful:
-            raise ErrorReport.create_error(value)
-        return FilterTable(*value)
-    
-    def set_gamma_send(self, filtr, async_ctx):
-        '''
-        Apply, update, or remove a gamma ramp adjustment, send request part
-        
-        @param  filtr:Filter            The filter to apply, update, or remove, gamma ramp
-                                        meta-data must match the CRTC's
-        @param  async_ctx:AsyncContext  Slot for information about the request that is
-                                        needed to identify and parse the response
-        '''
-        error = libcoopgamma_native.libcoopgamma_native_set_gamma_send(filtr, self.address, async_ctx.address)
-        if error != 0:
-            raise ErrorReport.create_error(error)
-    
-    def set_gamma_recv(self, async_ctx):
-        '''
-        Apply, update, or remove a gamma ramp adjustment, receive response part
-        
-        @param  async_ctx:AsyncContext  Information about the request
-        '''
-        error = libcoopgamma_native.libcoopgamma_native_set_gamma_recv(self.address, async_ctx.address)
-        if error is not None:
-            raise ErrorReport.create_error(error)
-    
-    def set_gamma_sync(self, filtr):
-        '''
-        Apply, update, or remove a gamma ramp adjustment, synchronous version
-        
-        This is a synchronous request function, as such, you have to ensure that
-        communication is blocking (default), and that there are not asynchronous
-        requests waiting, it also means that EINTR:s are silently ignored and
-        there no wait to cancel the operation without disconnection from the server
-        
-        @param   filtr:Filter  The filter to apply, update, or remove,
-                               gamma ramp meta-data must match the CRTC's
-        '''
-        error = libcoopgamma_native.libcoopgamma_native_set_gamma_sync(filtr, self.address)
-        if error is not None:
-            raise ErrorReport.create_error(error)
-
-
-class AsyncContext:
-    '''
-    Information necessary to identify and parse a response from the server
-    '''
-    def __init__(self, buf = None):
-        '''
-        Constructor
-        
-        @param  buf:bytes?  Buffer to unmarshal
-        '''
-        self.address = None
-        if buf is None:
-            (successful, value) = libcoopgamma_native.libcoopgamma_native_async_context_create()
-            if not successful:
-                raise ErrorReport.create_error(value)
-        else:
-            (error, value) = libcoopgamma_native.libcoopgamma_native_async_context_unmarshal(buf)
-            if error < 0:
-                raise ErrorReport.create_error(value)
-            elif error == 1:
-                raise IncompatibleDowngradeError()
-            elif error == 2:
-                raise IncompatibleUpgradeError()
-        self.address = value
-    
-    def __del__(self):
-        '''
-        Destructor
-        '''
-        if self.address is not None:
-            libcoopgamma_native.libcoopgamma_native_async_context_free(self.address)
-    
-    def __repr__(self):
-        '''
-        Create a parsable string representation of the instance
-        
-        @return  :str  Parsable representation of the instance
-        '''
-        data = libcoopgamma_native.libcoopgamma_native_async_context_marshal(self.address)
-        if isinstance(data, int):
-            raise ErrorReport.create_error(data)
-        return 'libcoopgamma.AsyncContext(%s)' % repr(data)
-
-
-def get_methods():
-    '''
-    List all recognised adjustment method
-    
-    SIGCHLD must not be ignored or blocked
-    
-    @return  :list<str>  A list of names. You should only free the outer pointer, inner
-                         pointers are subpointers of the outer pointer and cannot be freed.
-    '''
-    ret = libcoopgamma_native.libcoopgamma_native_get_methods()
-    if isinstance(ret, int):
-        raise ErrorReport.create_error(ret)
-    return ret
-
-
-def get_method_and_site(method = None, site = None):
-    '''
-    Get the adjustment method and site
-    
-    SIGCHLD must not be ignored or blocked
-    
-    @param   method:int|str?  The adjustment method, `None` for automatic
-    @param   site:str?        The site, `None` for automatic
-    @return  :(:str, :str?)   The selected adjustment method and the selected the
-                              selected site. If the adjustment method only supports
-                              one site or if `site` is `None` and no site can be
-                              selected automatically, the selected site (the second
-                              element in the returned tuple) will be `None`.
-    '''
-    if method is not None:
-        method = str(method)
-    ret = libcoopgamma_native.libcoopgamma_native_get_method_and_site(method, site)
-    if isinstance(ret, int):
-        raise ErrorReport.create_error(ret)
-    return ret
-
-
-def get_pid_file(method = None, site = None):
-    '''
-    Get the PID file of the coopgamma server
-    
-    SIGCHLD must not be ignored or blocked
-    
-    @param   method:int|str?  The adjustment method, `None` for automatic
-    @param   site:str?        The site, `None` for automatic
-    @return  :str?            The pathname of the server's PID file.
-                              `None` if the server does not use PID files.
-    '''
-    if method is not None:
-        method = str(method)
-    ret = libcoopgamma_native.libcoopgamma_native_get_pid_file(method, site)
-    if ret is not None and isinstance(ret, int):
-        raise ErrorReport.create_error(ret)
-    return ret
-
-
-def get_socket_file(method = None, site = None):
-    '''
-    Get the socket file of the coopgamma server
-    
-    SIGCHLD must not be ignored or blocked
-    
-    @param   method:int|str?  The adjustment method, `None` for automatic
-    @param   site:str?        The site, `None` for automatic
-    @return  :str?            The pathname of the server's socket, `None` if the server does have
-                              its own socket, which is the case when communicating with a server
-                              in a multi-server display server like mds
-    '''
-    if method is not None:
-        method = str(method)
-    ret = libcoopgamma_native.libcoopgamma_native_get_socket_file(method, site)
-    if ret is not None and isinstance(ret, int):
-        raise ErrorReport.create_error(ret)
-    return ret
-
diff --git a/src/test b/test
index f2bb71e..407c668 100755
--- a/src/test
+++ b/test
@@ -1,21 +1,5 @@
 #!/usr/bin/env python3
-'''
-pylibcoopgamma -- Python library for interfacing with cooperative gamma servers
-Copyright (C) 2016  Mattias Andrée (maandree@kth.se)
-
-This library is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this library.  If not, see <http://www.gnu.org/licenses/>.
-'''
+# See LICENSE file for copyright and license details.
 
 import os, sys, time, errno, select
 
@@ -26,7 +10,6 @@ import libcoopgamma
 cg = libcoopgamma
 
 if len(sys.argv) == 1:
-    
     print('\033[1m%s:\033[m' % 'Methods')
     for m in cg.get_methods():
         print(m)
@@ -373,4 +356,3 @@ while any(unsynced):
 
 time.sleep(0.5)
 del g
-