diff -r 000000000000 -r b7aa2b626807 core/thread/PosixThreads.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/core/thread/PosixThreads.cpp Sun Mar 30 07:00:22 2008 +0000
@@ -0,0 +1,309 @@
+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * SourceMod
+ * Copyright (C) 2004-2008 AlliedModders LLC. All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, as published by the
+ * Free Software Foundation.
+ *
+ * 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 .
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation. You must obey the GNU General Public License in
+ * all respects for all other code used. Additionally, AlliedModders LLC grants
+ * this exception to all derivative works. AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or .
+ *
+ * Version: $Id$
+ */
+
+#include
+#include "PosixThreads.h"
+#include "ThreadWorker.h"
+
+IThreadWorker *PosixThreader::MakeWorker(IThreadWorkerCallbacks *hooks, bool threaded)
+{
+ if (threaded)
+ {
+ return new ThreadWorker(hooks, this, DEFAULT_THINK_TIME_MS);
+ } else {
+ return new BaseWorker(hooks);
+ }
+}
+
+void PosixThreader::DestroyWorker(IThreadWorker *pWorker)
+{
+ delete pWorker;
+}
+
+void PosixThreader::ThreadSleep(unsigned int ms)
+{
+ usleep( ms * 1000 );
+}
+
+void PosixThreader::GetPriorityBounds(ThreadPriority &max, ThreadPriority &min)
+{
+ max = ThreadPrio_Normal;
+ min = ThreadPrio_Normal;
+}
+
+IMutex *PosixThreader::MakeMutex()
+{
+ pthread_mutex_t mutex;
+
+ if (pthread_mutex_init(&mutex, NULL) != 0)
+ return NULL;
+
+ PosixMutex *pMutex = new PosixMutex(mutex);
+
+ return pMutex;
+}
+
+
+void PosixThreader::MakeThread(IThread *pThread)
+{
+ ThreadParams defparams;
+
+ defparams.flags = Thread_AutoRelease;
+ defparams.prio = ThreadPrio_Normal;
+
+ MakeThread(pThread, &defparams);
+}
+
+IThreadHandle *PosixThreader::MakeThread(IThread *pThread, ThreadFlags flags)
+{
+ ThreadParams defparams;
+
+ defparams.flags = flags;
+ defparams.prio = ThreadPrio_Normal;
+
+ return MakeThread(pThread, &defparams);
+}
+
+void *Posix_ThreadGate(void *param)
+{
+ PosixThreader::ThreadHandle *pHandle =
+ reinterpret_cast(param);
+
+ //Block this thread from being started initially.
+ pthread_mutex_lock(&pHandle->m_runlock);
+ //if we get here, we've obtained the lock and are allowed to run.
+ //unlock and continue.
+ pthread_mutex_unlock(&pHandle->m_runlock);
+
+ pHandle->m_run->RunThread(pHandle);
+
+ ThreadParams params;
+ pthread_mutex_lock(&pHandle->m_statelock);
+ pHandle->m_state = Thread_Done;
+ pHandle->GetParams(¶ms);
+ pthread_mutex_unlock(&pHandle->m_statelock);
+
+ pHandle->m_run->OnTerminate(pHandle, false);
+ if (params.flags & Thread_AutoRelease)
+ delete pHandle;
+
+ return 0;
+}
+
+ThreadParams g_defparams;
+IThreadHandle *PosixThreader::MakeThread(IThread *pThread, const ThreadParams *params)
+{
+ if (params == NULL)
+ params = &g_defparams;
+
+ PosixThreader::ThreadHandle *pHandle =
+ new PosixThreader::ThreadHandle(this, pThread, params);
+
+ pthread_mutex_lock(&pHandle->m_runlock);
+
+ int err;
+ err = pthread_create(&pHandle->m_thread, NULL, Posix_ThreadGate, (void *)pHandle);
+
+ if (err != 0)
+ {
+ pthread_mutex_unlock(&pHandle->m_runlock);
+ delete pHandle;
+ return NULL;
+ }
+
+ //Don't bother setting priority...
+
+ if (!(pHandle->m_params.flags & Thread_CreateSuspended))
+ {
+ pHandle->m_state = Thread_Running;
+ err = pthread_mutex_unlock(&pHandle->m_runlock);
+ if (err != 0)
+ pHandle->m_state = Thread_Paused;
+ }
+
+ return pHandle;
+}
+
+IEventSignal *PosixThreader::MakeEventSignal()
+{
+ return new PosixEventSignal();
+}
+
+/*****************
+**** Mutexes ****
+*****************/
+
+PosixThreader::PosixMutex::~PosixMutex()
+{
+ pthread_mutex_destroy(&m_mutex);
+}
+
+bool PosixThreader::PosixMutex::TryLock()
+{
+ int err = pthread_mutex_trylock(&m_mutex);
+
+ return (err == 0);
+}
+
+void PosixThreader::PosixMutex::Lock()
+{
+ pthread_mutex_lock(&m_mutex);
+}
+
+void PosixThreader::PosixMutex::Unlock()
+{
+ pthread_mutex_unlock(&m_mutex);
+}
+
+void PosixThreader::PosixMutex::DestroyThis()
+{
+ delete this;
+}
+
+/******************
+* Thread Handles *
+******************/
+
+PosixThreader::ThreadHandle::ThreadHandle(IThreader *parent, IThread *run, const ThreadParams *params) :
+ m_parent(parent), m_params(*params), m_run(run), m_state(Thread_Paused)
+{
+ pthread_mutex_init(&m_runlock, NULL);
+ pthread_mutex_init(&m_statelock, NULL);
+}
+
+PosixThreader::ThreadHandle::~ThreadHandle()
+{
+ pthread_mutex_destroy(&m_runlock);
+ pthread_mutex_destroy(&m_statelock);
+}
+
+bool PosixThreader::ThreadHandle::WaitForThread()
+{
+ void *arg;
+
+ if (pthread_join(m_thread, &arg) != 0)
+ return false;
+
+ return true;
+}
+
+ThreadState PosixThreader::ThreadHandle::GetState()
+{
+ ThreadState state;
+
+ pthread_mutex_lock(&m_statelock);
+ state = m_state;
+ pthread_mutex_unlock(&m_statelock);
+
+ return state;
+}
+
+IThreadCreator *PosixThreader::ThreadHandle::Parent()
+{
+ return m_parent;
+}
+
+void PosixThreader::ThreadHandle::DestroyThis()
+{
+ if (m_params.flags & Thread_AutoRelease)
+ return;
+
+ delete this;
+}
+
+void PosixThreader::ThreadHandle::GetParams(ThreadParams *ptparams)
+{
+ if (!ptparams)
+ return;
+
+ *ptparams = m_params;
+}
+
+ThreadPriority PosixThreader::ThreadHandle::GetPriority()
+{
+ return ThreadPrio_Normal;
+}
+
+bool PosixThreader::ThreadHandle::SetPriority(ThreadPriority prio)
+{
+ return (prio == ThreadPrio_Normal);
+}
+
+bool PosixThreader::ThreadHandle::Unpause()
+{
+ if (m_state != Thread_Paused)
+ return false;
+
+ m_state = Thread_Running;
+
+ if (pthread_mutex_unlock(&m_runlock) != 0)
+ {
+ m_state = Thread_Paused;
+ return false;
+ }
+
+ return true;
+}
+
+/*****************
+ * EVENT SIGNALS *
+ *****************/
+
+PosixThreader::PosixEventSignal::PosixEventSignal()
+{
+ pthread_cond_init(&m_cond, NULL);
+ pthread_mutex_init(&m_mutex, NULL);
+}
+
+PosixThreader::PosixEventSignal::~PosixEventSignal()
+{
+ pthread_cond_destroy(&m_cond);
+ pthread_mutex_destroy(&m_mutex);
+}
+
+void PosixThreader::PosixEventSignal::Wait()
+{
+ pthread_mutex_lock(&m_mutex);
+ pthread_cond_wait(&m_cond, &m_mutex);
+ pthread_mutex_unlock(&m_mutex);
+}
+
+void PosixThreader::PosixEventSignal::Signal()
+{
+ pthread_mutex_lock(&m_mutex);
+ pthread_cond_broadcast(&m_cond);
+ pthread_mutex_unlock(&m_mutex);
+}
+
+void PosixThreader::PosixEventSignal::DestroyThis()
+{
+ delete this;
+}