aosp12/bionic/libc/private/thread_private.h

37 lines
1.3 KiB
C

/* $OpenBSD: thread_private.h,v 1.18 2006/02/22 07:16:31 otto Exp $ */
/* PUBLIC DOMAIN: No Rights Reserved. Marco S Hyman <marc@snafu.org> */
#pragma once
#include <pthread.h>
__BEGIN_DECLS
/*
* This file defines the thread library interface to libc. Thread
* libraries must implement the functions described here for proper
* inter-operation with libc. libc contains weak versions of the
* described functions for operation in a non-threaded environment.
*/
#define __MUTEX_NAME(name) __CONCAT(__libc_mutex_,name)
#define _THREAD_PRIVATE_MUTEX(name) static pthread_mutex_t __MUTEX_NAME(name) = PTHREAD_MUTEX_INITIALIZER
#define _THREAD_PRIVATE_MUTEX_LOCK(name) pthread_mutex_lock(&__MUTEX_NAME(name))
#define _THREAD_PRIVATE_MUTEX_UNLOCK(name) pthread_mutex_unlock(&__MUTEX_NAME(name))
/* Note that these aren't compatible with the usual OpenBSD ones which lazy-initialize! */
#define _MUTEX_LOCK(l) pthread_mutex_lock((pthread_mutex_t*) l)
#define _MUTEX_UNLOCK(l) pthread_mutex_unlock((pthread_mutex_t*) l)
__LIBC_HIDDEN__ void _thread_arc4_lock(void);
__LIBC_HIDDEN__ void _thread_arc4_unlock(void);
#define _ARC4_LOCK() _thread_arc4_lock()
#define _ARC4_UNLOCK() _thread_arc4_unlock()
#define _ARC4_ATFORK(f) pthread_atfork(NULL, NULL, (f))
extern volatile sig_atomic_t _rs_forked;
__END_DECLS