threads.h

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#pragma once
#ifndef KRK_DISABLE_THREADS
#include <pthread.h>
#include <sched.h>
 
#ifdef _WIN32
#include <windows.h>
#include <winnt.h>
#define sched_yield() YieldProcessor()
#endif
 
static inline void _krk_internal_spin_lock(int volatile * lock) {
    while(__sync_lock_test_and_set(lock, 0x01)) {
        sched_yield();
    }
}
 
static inline void _krk_internal_spin_unlock(int volatile * lock) {
    __sync_lock_release(lock);
}
 
#define _obtain_lock(v)  _krk_internal_spin_lock(&v);
#define _release_lock(v) _krk_internal_spin_unlock(&v);
 
#else
 
#define _obtain_lock(v)
#define _release_lock(v)
 
#define pthread_rwlock_init(a,b) ((void)0)
#define pthread_rwlock_wrlock(a) ((void)0)
#define pthread_rwlock_rdlock(a) ((void)0)
#define pthread_rwlock_unlock(a) ((void)0)
 
#endif