4coder/platform_linux/linux_threading_wrapper.h

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2017-07-18 20:17:57 +00:00
/*
* Mr. 4th Dimention - Allen Webster
*
* 18.07.2017
2017-07-18 20:17:57 +00:00
*
* Linux threading wrapper
*
*/
// TOP
#if !defined(LINUX_THREADING_WRAPPER)
#define LINUX_THREADING_WRAPPER
#define PLAT_THREAD_SIG(n) void* n(void *ptr)
typedef PLAT_THREAD_SIG(Thread_Function);
union Thread{
pthread_t t;
FixSize(THREAD_TYPE_SIZE);
};
union Mutex{
pthread_mutex_t crit;
FixSize(MUTEX_TYPE_SIZE);
};
union Condition_Variable{
pthread_cond_t cv;
FixSize(CONDITION_VARIABLE_TYPE_SIZE);
};
union Semaphore{
sem_t s;
FixSize(SEMAPHORE_TYPE_SIZE);
};
internal void
system_init_and_launch_thread(Thread *t, Thread_Function *proc, void *ptr){
pthread_create(&t->t, 0, proc, ptr);
}
internal void
system_init_lock(Mutex *m){
pthread_mutex_init(&m->crit, NULL);
}
internal void
system_acquire_lock(Mutex *m){
pthread_mutex_lock(&m->crit);
}
internal void
system_release_lock(Mutex *m){
pthread_mutex_unlock(&m->crit);
}
internal void
system_init_cv(Condition_Variable *cv){
pthread_cond_init(&cv->cv, NULL);
}
internal void
system_wait_cv(Condition_Variable *cv, Mutex *m){
pthread_cond_wait(&cv->cv, &m->crit);
}
internal void
system_signal_cv(Condition_Variable *cv, Mutex *m){
pthread_cond_signal(&cv->cv);
}
internal void
system_init_semaphore(Semaphore *s, u32 count){
sem_init(&s->s, 0, 0);
}
internal void
system_wait_on_semaphore(Semaphore *s){
sem_wait(&s->s);
}
internal void
system_release_semaphore(Semaphore *s){
sem_post(&s->s);
}
#endif
// BOTTOM