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authorMattias Andrée <maandree@operamail.com>2015-07-12 18:40:20 +0200
committerMattias Andrée <maandree@operamail.com>2015-07-12 18:40:20 +0200
commit4049dab5b7190a3e13fff3828c9016b82a5a8fdc (patch)
treebed2379731df4c7ee249e41fb9d9564a16187a99 /doc
parentindices (diff)
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Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to '')
-rw-r--r--doc/info/mds.texinfo180
1 files changed, 180 insertions, 0 deletions
diff --git a/doc/info/mds.texinfo b/doc/info/mds.texinfo
index 96310d3..fc96ca6 100644
--- a/doc/info/mds.texinfo
+++ b/doc/info/mds.texinfo
@@ -4644,6 +4644,9 @@ system.
@table @asis
@item @code{xasprintf} [(@code{char* buffer, ...}) @arrow{} @code{int}]
+@fnindex @code{xasprintf}
+@cpindex Functions, printing
+@cpindex Printing fuction
This is a wrapper for @code{asprintf} that has two
important properties, the buffer is guaranteed to
be @code{NULL} on failure, and it will return zero
@@ -4653,6 +4656,9 @@ its first argument rather than the address of that
variable.
@item @code{xsnprintf} [(@code{char buffer[], ...}) @arrow{} @code{int}]
+@fnindex @code{xsnprintf}
+@cpindex Functions, printing
+@cpindex Printing fuction
This is a wrapper for @code{snprintf} that allows you
to forget about the buffer size. When you know how long
a string can be, you should use @code{sprintf}. But when
@@ -4664,6 +4670,10 @@ this to find out how large the buffer is so it can call
@code{snprintf} with that size.
@item @code{eprint} [(@code{const char* format}) @arrow{} @code{int}]
+@fnindex @code{eprint}
+@cpindex Functions, printing, errors
+@cpindex Printing fuction, errors
+@cpindex Error printing function
A wrapper for @code{fprintf} that prints a string prefixed
with the value of @code{*argv} to @code{stderr}.
This wrapper also as a line feed to the end of the text.
@@ -4671,11 +4681,22 @@ Because @code{eprintf} naïvely wraps @code{fprintf}, all
`%':s in the string must be duplicated.
@item @code{eprintf} [(@code{const char* format, ...}) @arrow{} @code{int}]
+@fnindex @code{eprintf}
+@cpindex Functions, printing, errors
+@cpindex Printing fuction, errors
+@cpindex Error printing function
@code{eprint} extends @code{eprint} with variadic arguments
that can be used to insert values into the format string
just like you can do in @code{fprintf}.
@item @code{iprint} [(@code{const char* format}) @arrow{} @code{int}]
+@fnindex @code{iprint}
+@cpindex Functions, printing, state
+@cpindex Printing fuction, state
+@cpindex State printing function
+@sgindex @code{SIGINFO}
+@cpindex State dump
+@cpindex Statistics dump
A wrapper for @code{fprintf} that prints a string prefixed
with the value of @code{*argv}, as well a label telling the
user that the output is part of a state and statistics dump,
@@ -4684,70 +4705,154 @@ end of the text. Because @code{eprintf} naïvely wraps
@code{fprintf}, all `%':s in the string must be duplicated.
@item @code{iprintf} [(@code{const char* format, ...}) @arrow{} @code{int}]
+@fnindex @code{iprintf}
+@cpindex Functions, printing, state
+@cpindex Printing fuction, state
+@cpindex State printing function
+@sgindex @code{SIGINFO}
+@cpindex State dump
+@cpindex Statistics dump
@code{eprint} extends @code{iprint} with variadic arguments
that can be used to insert values into the format string
just like you can do in @code{fprintf}.
@item @code{with_mutex} [(@code{pthread_mutex_t mutex, instructions})]
+@fnindex @code{with_mutex}
+@cpindex Threading, synchronisation
+@cpindex Multi-threading, synchronisation
+@cpindex Synchronisation, threading
+@cpindex Mutex
Wraps @code{instructions} with @code{errno = pthread_mutex_lock(mutex);}
and @code{errno = pthread_mutex_unlock(mutex);}, so a set of
instructions can be invoked inside mutex protection.
@item @code{with_mutex_if} [(@code{pthread_mutex_t mutex, condition, instructions})]
+@fnindex @code{with_mutex_if}
+@cpindex Threading, synchronisation
+@cpindex Multi-threading, synchronisation
+@cpindex Synchronisation, threading
+@cpindex Mutex
An alternative to @code{with_mutex} where @code{instructions}
is wrapped around @code{if (condition)} which in turn is
wrapped inside the mutex protection.
@item @code{max} [(@code{a, b})]
+@fnindex @code{max}
+@cpindex Value comparision macro
Returns the higher value of @code{a} and @code{b}.
@item @code{min} [(@code{a, b})]
+@fnindex @code{min}
+@cpindex Value comparision macro
Returns the lower value of @code{a} and @code{b}.
@item @code{buf_cast} [(@code{char* buffer, type, size_t index})]
+@fnindex @code{buf_cast}
+@cpindex Re-executing servers, macros
+@cpindex Updating, online, macros
+@cpindex Online updating, macros
+@cpindex Version update, macros
+@cpindex Serialisation macros
+@cpindex Marshalling macros
+@sgindex @code{SIGUPDATE}
Casts @code{buffer} to a @code{type} buffer and
subscripts to the @code{index}:th element. You
can either use this function as a getter or a
setter.
@item @code{buf_set} [(@code{char* buffer, type, size_t index, type variable}) @arrow{} @code{type}]
+@fnindex @code{buf_set}
+@cpindex Re-executing servers, macros
+@cpindex Updating, online, macros
+@cpindex Online updating, macros
+@cpindex Version update, macros
+@cpindex Serialisation macros
+@cpindex Marshalling macros
+@sgindex @code{SIGUPDATE}
Wrapper for @code{buf_cast} that sets the addressed
element to the value of @code{variable}.
@item @code{buf_get} [(@code{const char* buffer, type, size_t index, type variable}) @arrow{} @code{type}]
+@fnindex @code{buf_get}
+@cpindex Re-executing servers, macros
+@cpindex Updating, online, macros
+@cpindex Online updating, macros
+@cpindex Version update, macros
+@cpindex Serialisation macros
+@cpindex Marshalling macros
+@sgindex @code{SIGUPDATE}
Wrapper for @code{buf_cast} that sets the value of
@code{variable} to the value of the addressed element.
@item @code{buf_next} [(@code{char* buffer, type, size_t count}) @arrow{} @code{char*}]
+@fnindex @code{buf_next}
+@cpindex Re-executing servers, macros
+@cpindex Updating, online, macros
+@cpindex Online updating, macros
+@cpindex Version update, macros
+@cpindex Serialisation macros
+@cpindex Marshalling macros
+@sgindex @code{SIGUPDATE}
Increases the pointer @code{buffer} by the size of
@code{type} @code{count} types.
@item @code{buf_prev} [(@code{char* buffer, type, size_t count}) @arrow{} @code{char*}]
+@fnindex @code{buf_prev}
+@cpindex Re-executing servers, macros
+@cpindex Updating, online, macros
+@cpindex Online updating, macros
+@cpindex Version update, macros
+@cpindex Serialisation macros
+@cpindex Marshalling macros
+@sgindex @code{SIGUPDATE}
Decreases the pointer @code{buffer} by the size of
@code{type} @code{count} types.
@item @code{buf_set_next} [(@code{char* buffer, type, type variable}) @arrow{} @code{type}]
+@fnindex @code{buf_set_next}
+@cpindex Re-executing servers, macros
+@cpindex Updating, online, macros
+@cpindex Online updating, macros
+@cpindex Version update, macros
+@cpindex Serialisation macros
+@cpindex Marshalling macros
+@sgindex @code{SIGUPDATE}
@example
buf_set(buffer, type, 0, variable),
buf_next(buffer, type, 1);
@end example
@item @code{buf_get_next} [(@code{char* buffer, type, type variable}) @arrow{} @code{type}]
+@fnindex @code{buf_get_next}
+@cpindex Re-executing servers, macros
+@cpindex Updating, online, macros
+@cpindex Online updating, macros
+@cpindex Version update, macros
+@cpindex Serialisation macros
+@cpindex Marshalling macros
+@sgindex @code{SIGUPDATE}
@example
buf_get(buffer, type, 0, variable),
buf_next(buffer, type, 1);
@end example
@item @code{strequals} [(@code{const char* a, const char* b}) @arrow{} @code{int}]
+@fnindex @code{strequals}
+@cpindex String comparison
Evaluates whether the strings @code{a} and @code{b}
are equals, neither may be @code{NULL}.
@item @code{startswith} [(@code{const char* haystack, const char* needle}) @arrow{} @code{int}]
+@fnindex @code{startswith}
+@cpindex String comparison
Evaluates whether the string @code{haystack}
starts with the string @code{needle}, neither
may be @code{NULL}.
@item @code{drop_privileges} [(void) @arrow{} @code{int}]
+@fnindex @code{drop_privileges}
+@cpindex Previleges
+@cpindex Security, previleges
Sets the effective user to the real user and the
effective group to the real group. This is used
by most servers and ensure that they are not
@@ -4755,42 +4860,60 @@ running with unnecessary privileges. Returns zero
on and only on success.
@item @code{monotone} [(@code{struct timespec* time_slot}) @arrow{} @code{int}]
+@fnindex @code{monotone}
+@cpindex Time, monotonic
+@cpindex Monotonic time
Stores the time of an unspecified monotonic clock
into @code{time_slot}. Returns zero on and only on
success.
@item @code{close_files} [(@code{condition}) @arrow{} @code{void}]
+@fnindex @code{close_files}
+@cpindex File descriptions, close all
+@cpindex Close all file descriptions
Closes all file descriptors named by a variable
@code{fd} for which @code{condition} evalutes
to non-zero.
@item @code{xfree} [(@code{void** array, size_t elements}) @arrow{} @code{void}]
+@fnindex @code{xfree}
+@cpindex Memory management
Calls @code{free} on the first @code{elements}
elements in @code{array}, and than calls
@code{free} on @code{array}. This macro
requires @code{size_t i} is declared.
@item @code{xmalloc} [(@code{type* var, size_t elements, type}) @arrow{} @code{int}]
+@fnindex @code{xmalloc}
+@cpindex Memory management
Allocates a @code{type*} with @code{elements}
elements and stores the allocated pointer to
@code{var}. Returns zero on and only on success.
@item @code{xbmalloc} [(@code{type* var, size_t bytes}) @arrow{} @code{int}]
+@fnindex @code{xbmalloc}
+@cpindex Memory management
Allocates @code{bytes} bytes and stores the allocated
pointer to @code{var}. Returns zero on and only on success.
@item @code{xcalloc} [(@code{type* var, size_t elements, type}) @arrow{} @code{int}]
+@fnindex @code{xcalloc}
+@cpindex Memory management
Allocates a zero-initialised @code{type*} with
@code{elements} elements and stores the allocated
pointer to @code{var}. Returns zero on and only
on success.
@item @code{xbcalloc} [(@code{type* var, size_t bytes}) @arrow{} @code{int}]
+@fnindex @code{xbcalloc}
+@cpindex Memory management
Allocates and zero-initialises @code{bytes} bytes
and stores the allocated pointer to @code{var}.
Returns zero on and only on success.
@item @code{xrealloc} [(@code{type* var, size_t elements, type}) @arrow{} @code{int}]
+@fnindex @code{xrealloc}
+@cpindex Memory management
Reallocates @code{var} and updates the variable
@code{var} accordingly. @code{var} will be
allocated to have @code{elements} elements
@@ -4804,6 +4927,8 @@ into another variable in case this macro
fails.
@item @code{xxrealloc} [(@code{type* old, type* var, size_t elements, type}) @arrow{} @code{int}]
+@fnindex @code{xxrealloc}
+@cpindex Memory management
Variant of @code{xrealloc} that will
return with @code{old} set to @code{NULL}
on success, and @code{old} set to @code{var}
@@ -4811,6 +4936,8 @@ on error. Like @code{xrealloc}, @code{xxrealloc}
returns zero on and only on success.
@item @code{yrealloc} [(@code{type* tmp, type* var, size_t elements, type}) @arrow{} @code{int}]
+@fnindex @code{yrealloc}
+@cpindex Memory management
Variant of @code{xrealloc} that will
store @code{var} to @code{tmp} before
reallocating @code{var} and then restore
@@ -4819,6 +4946,8 @@ Like @code{xrealloc}, @code{yrealloc}
returns zero on and only on success.
@item @code{growalloc} [(@code{type* old, type* var, size_t elements, type}) @arrow{} @code{int}]
+@fnindex @code{growalloc}
+@cpindex Memory management
When using this macro @code{var} should
be a @code{type*} pointer allocated for
@code{elements} elements of the type
@@ -4831,6 +4960,8 @@ specify it in as the @code{old} parameter.
Returns zero on and only on success.
@item @code{xstrdup} [(@code{char* var, const char* original}) @arrow{} @code{int}]
+@fnindex @code{xstrdup}
+@cpindex Memory management
Wrapper for @code{strdup} that
returns zero on and only on success.
@code{original} is duplicate and the
@@ -4840,6 +4971,8 @@ duplicate is stored in the variable
@code{NULL} and zero is returned.
@item @code{xmemdup} [(@code{void* var, const void* original, size_t elements, type}) @arrow{} @code{int}]
+@fnindex @code{xmemdup}
+@cpindex Memory management
Allocates a pointer of the type @code{type*}
with room for @code{elements} elements and
stores the pointer to @code{var}. If successful,
@@ -4849,6 +4982,8 @@ copied to @code{var}, and zero is returned.
On failure, a non-zero value is returned.
@item @code{xperror} [(@code{const char* str}) @arrow{} @code{void}]
+@fnindex @code{xperror}
+@cpindex Error management
Invokes @code{perror(str)} if and only if
@code{errno} is non-zero and then sets
@code{errno} to zero. @code{str} should
@@ -4856,17 +4991,26 @@ unless you have a specific reason be
@code{*argv}.
@item @code{fail_if} [(@code{condition}) @arrow{} @code{void}]
+@fnindex @code{fail_if}
+@cpindex Error management
If @code{condition} is satisfied, a jump
is made to the label @code{fail}.
Additionally the location of failure will
be printed to standard error.
@item @code{exit_if} [(@code{condition, instructions}) @arrow{} @code{void}]
+@fnindex @code{exit_if}
+@cpindex Error management
+@cpindex Terminating
If @code{condition} is satisfied,
@code{instructions} is invoked and
@code{1} is @code{return}:ed.
@end table
+@cpindex Signals
+@sgindex @code{SIGDANGER}
+@sgindex @code{SIGUPDATE}
+@sgindex @code{SIGINFO}
Additionally, @file{<libmdsserver/macros.h>}
defines any missing signal name: currently
@code{SIGDANGER}, @code{SIGINFO} and
@@ -4875,72 +5019,108 @@ defines any missing signal name: currently
of @code{atoi} for portability and
convenience:
+@cpindex Integer parsing macros
@table @code
@item atoz
+@fnindex @code{atoz}
+@tpindex @code{size_t}
Parse a human readable @code{const char*}
10-radix integer to a @code{size_t}.
@item atosz
+@fnindex @code{atosz}
+@tpindex @code{ssize_t}
Parse a human readable @code{const char*}
10-radix integer to a @code{ssize_t}.
@item atoh
+@fnindex @code{atoh}
+@tpindex @code{short int}
+@tpindex @code{signed short int}
Parse a human readable @code{const char*}
10-radix integer to a @code{short int}.
@item atouh
+@fnindex @code{atouh}
+@tpindex @code{unsigned short int}
Parse a human readable @code{const char*}
10-radix integer to an @code{unsigned short int}.
@item atou
+@fnindex @code{atou}
+@tpindex @code{unsigned int}
Parse a human readable @code{const char*}
10-radix integer to an @code{unsigned int}.
@item atoul
+@fnindex @code{atoul}
+@tpindex @code{unsigned long int}
Parse a human readable @code{const char*}
10-radix integer to an @code{unsigned long int}.
@item atoull
+@fnindex @code{atoull}
+@tpindex @code{unsigned long long int}
Parse a human readable @code{const char*}
10-radix integer to an @code{unsigned long long int}.
@item ato8
+@fnindex @code{ato8}
+@tpindex @code{int8_t}
Parse a human readable @code{const char*}
10-radix integer to an @code{int8_t}.
@item atou8
+@fnindex @code{atou8}
+@tpindex @code{uint8_t}
Parse a human readable @code{const char*}
10-radix integer to an @code{uint8_t}.
@item ato16
+@fnindex @code{ato16}
+@tpindex @code{int16_t}
Parse a human readable @code{const char*}
10-radix integer to an @code{int16_t}.
@item atou16
+@fnindex @code{atou16}
+@tpindex @code{uint16_t}
Parse a human readable @code{const char*}
10-radix integer to an @code{uint16_t}.
@item ato32
+@fnindex @code{ato32}
+@tpindex @code{int32_t}
Parse a human readable @code{const char*}
10-radix integer to an @code{int32_t}.
@item atou32
+@fnindex @code{atou32}
+@tpindex @code{uint32_t}
Parse a human readable @code{const char*}
10-radix integer to an @code{uint32_t}.
@item ato64
+@fnindex @code{ato64}
+@tpindex @code{int64_t}
Parse a human readable @code{const char*}
10-radix integer to an @code{int64_t}.
@item atou64
+@fnindex @code{atou64}
+@tpindex @code{uint64_t}
Parse a human readable @code{const char*}
10-radix integer to an @code{uint64_t}.
@item atoj
+@fnindex @code{atoj}
+@tpindex @code{intmax_t}
Parse a human readable @code{const char*}
10-radix integer to an @code{intmax_t}.
@item atouj
+@fnindex @code{atouj}
+@tpindex @code{uintmax_t}
Parse a human readable @code{const char*}
10-radix integer to an @code{uintmax_t}.
@end table