godot/drivers/unix/rw_lock_posix.cpp

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#if defined(UNIX_ENABLED) || defined(PTHREAD_ENABLED)
#include "os/memory.h"
#include "rw_lock_posix.h"
#include "error_macros.h"
#include <stdio.h>
void RWLockPosix::read_lock() {
int err =pthread_rwlock_rdlock(&rwlock);
if (err!=0) {
perror("wtf: ");
}
ERR_FAIL_COND(err!=0);
}
void RWLockPosix::read_unlock() {
pthread_rwlock_unlock(&rwlock);
}
Error RWLockPosix::read_try_lock() {
if (pthread_rwlock_tryrdlock(&rwlock)!=0) {
return ERR_BUSY;
} else {
return OK;
}
}
void RWLockPosix::write_lock() {
int err = pthread_rwlock_wrlock(&rwlock);
ERR_FAIL_COND(err!=0);
}
void RWLockPosix::write_unlock() {
pthread_rwlock_unlock(&rwlock);
}
Error RWLockPosix::write_try_lock() {
if (pthread_rwlock_trywrlock(&rwlock)!=0) {
return ERR_BUSY;
} else {
return OK;
}
}
RWLock *RWLockPosix::create_func_posix() {
return memnew( RWLockPosix );
}
void RWLockPosix::make_default() {
create_func=create_func_posix;
}
RWLockPosix::RWLockPosix() {
//rwlock=PTHREAD_RWLOCK_INITIALIZER; fails on OSX
pthread_rwlock_init(&rwlock,NULL);
}
RWLockPosix::~RWLockPosix() {
pthread_rwlock_destroy(&rwlock);
}
#endif