JackWinMutex.cpp
/*
Copyright (C) 2004-2008 Grame
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "JackWinMutex.h"
#include "JackError.h"
namespace Jack
{
bool JackBaseWinMutex::Lock()
{
if (fOwner != GetCurrentThreadId()) {
DWORD res = WaitForSingleObject(fMutex, INFINITE);
if (res == WAIT_OBJECT_0) {
fOwner = GetCurrentThreadId();
return true;
} else {
jack_log("JackBaseWinMutex::Lock res = %d", res);
return false;
}
} else {
jack_error("JackBaseWinMutex::Lock mutex already locked by thread = %d", GetCurrentThreadId());
return false;
}
}
bool JackBaseWinMutex::Trylock()
{
if (fOwner != GetCurrentThreadId()) {
DWORD res = WaitForSingleObject(fMutex, 0);
if (res == WAIT_OBJECT_0) {
fOwner = GetCurrentThreadId();
return true;
} else {
jack_log("JackBaseWinMutex::Trylock res = %d", res);
return false;
}
} else {
jack_error("JackBaseWinMutex::Trylock mutex already locked by thread = %d", GetCurrentThreadId());
return false;
}
}
bool JackBaseWinMutex::Unlock()
{
if (fOwner == GetCurrentThreadId()) {
fOwner = 0;
int res = ReleaseMutex(fMutex);
if (res != 0) {
return true;
} else {
jack_log("JackBaseWinMutex::Unlock res = %d", res);
return false;
}
} else {
jack_error("JackBaseWinMutex::Unlock mutex not locked by thread = %d", GetCurrentThreadId());
return false;
}
}
bool JackWinMutex::Lock()
{
if (WAIT_OBJECT_0 == WaitForSingleObject(fMutex, INFINITE)) {
return true;
} else {
jack_log("JackWinProcessSync::Lock WaitForSingleObject err = %d", GetLastError());
return false;
}
}
bool JackWinMutex::Trylock()
{
if (WAIT_OBJECT_0 == WaitForSingleObject(fMutex, 0)) {
return true;
} else {
jack_log("JackWinProcessSync::Trylock WaitForSingleObject err = %d", GetLastError());
return false;
}
}
bool JackWinMutex::Unlock()
{
if (!ReleaseMutex(fMutex)) {
jack_log("JackWinProcessSync::Unlock ReleaseMutex err = %d", GetLastError());
return false;
} else {
return true;
}
}
bool JackWinCriticalSection::Lock()
{
EnterCriticalSection(&fSection);
return true;
}
bool JackWinCriticalSection::Trylock()
{
return (TryEnterCriticalSection(&fSection));
}
bool JackWinCriticalSection::Unlock()
{
LeaveCriticalSection(&fSection);
return true;
}
} // namespace
Jack
Definition: JackAC3Encoder.cpp:30
jack_error
SERVER_EXPORT void jack_error(const char *fmt,...)
Definition: JackError.cpp:92
jack_log
SERVER_EXPORT void jack_log(const char *fmt,...)
Definition: JackError.cpp:108