openharmony_kernel_liteos_m/kal/posix/musl_src/stdio/ofl.c

29 lines
379 B
C

#include "stdio_impl.h"
#include <pthread.h>
static FILE *ofl_head;
static pthread_mutex_t locallock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
static int LOCK(void)
{
return pthread_mutex_lock(&locallock);
}
static void UNLOCK(void)
{
(void)pthread_mutex_unlock(&locallock);
}
FILE **__ofl_lock()
{
LOCK();
return &ofl_head;
}
void __ofl_unlock()
{
UNLOCK();
}