mutex.C

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#include "bcsignals.h"
#include "mutex.h"

Mutex::Mutex(char *title)
{
        this->title = title;
        pthread_mutexattr_t attr;
        pthread_mutexattr_init(&attr);
//      pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ADAPTIVE_NP);
        pthread_mutex_init(&mutex, &attr);
}

Mutex::~Mutex()
{
        pthread_mutex_destroy(&mutex);
        UNSET_ALL_LOCKS(this);
}
        
int Mutex::lock(char *location)
{
        SET_LOCK(this, title, location);
        if(pthread_mutex_lock(&mutex)) perror("Mutex::lock");
        SET_LOCK2
        return 0;
}

int Mutex::unlock()
{
        UNSET_LOCK(this);
        if(pthread_mutex_unlock(&mutex)) perror("Mutex::unlock");
        return 0;
}

int Mutex::trylock()
{
        return pthread_mutex_trylock(&mutex);
}

int Mutex::reset()
{
        pthread_mutex_destroy(&mutex);
        pthread_mutexattr_t attr;
        pthread_mutexattr_init(&attr);
        pthread_mutex_init(&mutex, &attr);
        UNSET_ALL_LOCKS(this)
        return 0;
}

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