/usr/include/inspircd/threadengines/threadengine_pthread.h is in inspircd-dev 2.0.20-5build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
* Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
*
* This file is part of InspIRCd. InspIRCd 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, version 2.
*
* 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/>.
*/
#ifndef THREADENGINE_PTHREAD_H
#define THREADENGINE_PTHREAD_H
#include <pthread.h>
#include "typedefs.h"
/** The ThreadEngine class has the responsibility of initialising
* Thread derived classes. It does this by creating operating system
* level threads which are then associated with the class transparently.
* This allows Thread classes to be derived without needing to know how
* the OS implements threads. You should ensure that any sections of code
* that use threads are threadsafe and do not interact with any other
* parts of the code which are NOT known threadsafe! If you really MUST
* access non-threadsafe code from a Thread, use the Mutex class to wrap
* access to the code carefully.
*/
class CoreExport ThreadEngine
{
public:
/** Constructor.
*/
ThreadEngine();
/** Destructor
*/
virtual ~ThreadEngine();
/** Create a new thread. This takes an already allocated
* Thread* pointer and initializes it to use this threading
* engine. On failure, this function may throw a CoreException.
* @param thread_to_init Pointer to a newly allocated Thread
* derived object.
*/
void Start(Thread* thread_to_init);
/** Returns the thread engine's name for display purposes
* @return The thread engine name
*/
const std::string GetName()
{
return "posix-thread";
}
};
class CoreExport ThreadData
{
public:
pthread_t pthread_id;
void FreeThread(Thread* toFree);
};
/** The Mutex class represents a mutex, which can be used to keep threads
* properly synchronised. Use mutexes sparingly, as they are a good source
* of thread deadlocks etc, and should be avoided except where absolutely
* neccessary. Note that the internal behaviour of the mutex varies from OS
* to OS depending on the thread engine, for example in windows a Mutex
* in InspIRCd uses critical sections, as they are faster and simpler to
* manage.
*/
class CoreExport Mutex
{
private:
pthread_mutex_t putex;
public:
/** Constructor.
*/
Mutex()
{
pthread_mutex_init(&putex, NULL);
}
/** Enter/enable the mutex lock.
*/
void Lock()
{
pthread_mutex_lock(&putex);
}
/** Leave/disable the mutex lock.
*/
void Unlock()
{
pthread_mutex_unlock(&putex);
}
/** Destructor
*/
~Mutex()
{
pthread_mutex_destroy(&putex);
}
};
class ThreadQueueData
{
pthread_mutex_t mutex;
pthread_cond_t cond;
public:
ThreadQueueData()
{
pthread_mutex_init(&mutex, NULL);
pthread_cond_init(&cond, NULL);
}
~ThreadQueueData()
{
pthread_mutex_destroy(&mutex);
pthread_cond_destroy(&cond);
}
void Lock()
{
pthread_mutex_lock(&mutex);
}
void Unlock()
{
pthread_mutex_unlock(&mutex);
}
void Wakeup()
{
pthread_cond_signal(&cond);
}
void Wait()
{
pthread_cond_wait(&cond, &mutex);
}
};
class ThreadSignalSocket;
class ThreadSignalData
{
public:
ThreadSignalSocket* sock;
};
#endif
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