chromium/third_party/harfbuzz-ng/src/src/hb-mutex.hh

/*
 * Copyright © 2007  Chris Wilson
 * Copyright © 2009,2010  Red Hat, Inc.
 * Copyright © 2011,2012  Google, Inc.
 *
 *  This is part of HarfBuzz, a text shaping library.
 *
 * Permission is hereby granted, without written agreement and without
 * license or royalty fees, to use, copy, modify, and distribute this
 * software and its documentation for any purpose, provided that the
 * above copyright notice and the following two paragraphs appear in
 * all copies of this software.
 *
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 *
 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
 *
 * Contributor(s):
 *	Chris Wilson <[email protected]>
 * Red Hat Author(s): Behdad Esfahbod
 * Google Author(s): Behdad Esfahbod
 */

#ifndef HB_MUTEX_HH
#define HB_MUTEX_HH

#include "hb.hh"


/* mutex */

/* We need external help for these */

#if defined(hb_mutex_impl_init) \
 && defined(hb_mutex_impl_lock) \
 && defined(hb_mutex_impl_unlock) \
 && defined(hb_mutex_impl_finish)

/* Defined externally, i.e. in config.h; must have typedef'ed hb_mutex_impl_t as well. */


#elif !defined(HB_NO_MT) && !defined(HB_MUTEX_IMPL_STD_MUTEX) && (defined(HAVE_PTHREAD) || defined(__APPLE__))

#include <pthread.h>
hb_mutex_impl_t;
#define hb_mutex_impl_init(M)
#define hb_mutex_impl_lock(M)
#define hb_mutex_impl_unlock(M)
#define hb_mutex_impl_finish(M)


#elif !defined(HB_NO_MT) && !defined(HB_MUTEX_IMPL_STD_MUTEX) && defined(_WIN32)

typedef CRITICAL_SECTION hb_mutex_impl_t;
#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
#define hb_mutex_impl_init
#else
#define hb_mutex_impl_init
#endif
#define hb_mutex_impl_lock
#define hb_mutex_impl_unlock
#define hb_mutex_impl_finish


#elif !defined(HB_NO_MT)

#include <mutex>
typedef std::mutex              hb_mutex_impl_t;
#define hb_mutex_impl_init
#define hb_mutex_impl_lock
#define hb_mutex_impl_unlock
#define hb_mutex_impl_finish


#else /* defined(HB_NO_MT) */

typedef int hb_mutex_impl_t;
#define hb_mutex_impl_init
#define hb_mutex_impl_lock
#define hb_mutex_impl_unlock
#define hb_mutex_impl_finish


#endif


struct hb_mutex_t
{};

struct hb_lock_t
{};


#endif /* HB_MUTEX_HH */