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# -*- python -*-
'''
cmdipc — System V and POSIX IPC from the command line
Copyright © 2014 Mattias Andrée (maandree@member.fsf.org)
This program 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 program 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 program. If not, see <http://www.gnu.org/licenses/>.
'''
import sysv_ipc # http://semanchuk.com/philip/sysv_ipc
ftok = sysv_ipc.ftok
PermissionsError = sysv_ipc.PermissionsError
ExistentialError = sysv_ipc.ExistentialError
BusyError = sysv_ipc.BusyError
class SignalError(Exception):
def __init__(self, *argv, **kwargs):
Exception.__init__(self, *argv, **kwargs)
CREAT = sysv_ipc.IPC_CREAT
EXCL = sysv_ipc.IPC_EXCL
def keycat(*keys):
return '.'.join([str(key) for key in keys])
def keysep(keys):
return [int(key) for key in keys.split('.')]
class Semaphore(sysv_ipc.Semaphore):
def __init__(self, *args, **kwargs):
sysv_ipc.Semaphore.__init__(self, *args, **kwargs)
def set_value(self, value):
self.value = value
def close(self):
pass
class SharedMemory(sysv_ipc.SharedMemory):
def __init__(self, *args, **kwargs):
sysv_ipc.SharedMemory.__init__(self, *args, **kwargs)
def close(self):
pass
class MessageQueue(sysv_ipc.MessageQueue):
def __init__(self, key, flags = 0, mode = 0o600, max_messages = 1, max_message_size = 2048):
sysv_ipc.MessageQueue.__init__(self, key, flags, mode, max_messages * max_message_size)
self.send_ = sysv_ipc.MessageQueue.send
self.recv_ = sysv_ipc.MessageQueue.receive
def send(self, message, timeout = None, type = 1):
self.send_(self, message, (timeout is None) or (timeout != 0), type)
def receive(self, timeout = None, type = 1):
return self.recv_(self, (timeout is None) or (timeout != 0), type)
def close(self):
pass
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