sortix--sortix/libc/malloc/__heap_lock.c

/*
 * Copyright (c) 2013, 2014 Jonas 'Sortie' Termansen.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * malloc/__heap_lock.c
 * Locks the dynamic heap.
 */

#include <malloc.h>
#include <pthread.h>

#ifdef __is_sortix_libk
#include <libk.h>
#endif

#ifndef __is_sortix_libk
pthread_mutex_t __heap_mutex;
#endif

void __heap_lock(void)
{
#ifdef __is_sortix_libk
	libk_heap_lock();
#else
	pthread_mutex_lock(&__heap_mutex);
#endif
}