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#include "services.h"
/* Threadengine attributes used by this thread engine */
static pthread_attr_t threadengine_attr;
/** Entry point used for the threads
* @param parameter A Thread* cast to a void*
*/
static void *entry_point(void *parameter)
{
Thread *thread = static_cast<Thread *>(parameter);
thread->Run();
thread->SetExitState();
pthread_exit(0);
}
/** Threadengines constructor
*/
ThreadEngine::ThreadEngine()
{
if (pthread_attr_init(&threadengine_attr))
throw CoreException("ThreadEngine: Error calling pthread_attr_init");
if (pthread_attr_setdetachstate(&threadengine_attr, PTHREAD_CREATE_JOINABLE))
throw CoreException("ThreadEngine: Unable to mark threads as joinable");
}
/** Threadengines destructor
*/
ThreadEngine::~ThreadEngine()
{
pthread_attr_destroy(&threadengine_attr);
}
/** Join to the thread, sets the exit state to true
*/
void Thread::Join()
{
this->SetExitState();
pthread_join(Handle, NULL);
}
/** Exit the thread. Note that the thread still must be joined to free resources!
*/
void Thread::Exit()
{
this->SetExitState();
pthread_exit(0);
}
/** Start a new thread
* @param thread A pointer to a newley allocated thread
*/
void ThreadEngine::Start(Thread *thread)
{
if (pthread_create(&thread->Handle, &threadengine_attr, entry_point, thread))
{
delete thread;
throw CoreException(Anope::string("Unable to create thread: ") + Anope::LastError());
}
}
/** Constructor
*/
Mutex::Mutex()
{
pthread_mutex_init(&mutex, NULL);
}
/** Destructor
*/
Mutex::~Mutex()
{
pthread_mutex_destroy(&mutex);
}
/** Attempt to lock the mutex, will hang until a lock can be achieved
*/
void Mutex::Lock()
{
pthread_mutex_lock(&mutex);
}
/** Unlock the mutex, it must be locked first
*/
void Mutex::Unlock()
{
pthread_mutex_unlock(&mutex);
}
/** Attempt to lock the mutex, will return true on success and false on fail
* Does not block
* @return true or false
*/
bool Mutex::TryLock()
{
return pthread_mutex_trylock(&mutex) == 0;
}
/** Constructor
*/
Condition::Condition() : Mutex()
{
pthread_cond_init(&cond, NULL);
}
/** Destructor
*/
Condition::~Condition()
{
pthread_cond_destroy(&cond);
}
/** Called to wakeup the waiter
*/
void Condition::Wakeup()
{
pthread_cond_signal(&cond);
}
/** Called to wait for a Wakeup() call
*/
void Condition::Wait()
{
pthread_cond_wait(&cond, &mutex);
}
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