chromium/third_party/libvpx/source/libvpx/vpx_ports/vpx_timer.h

/*
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#ifndef VPX_VPX_PORTS_VPX_TIMER_H_
#define VPX_VPX_PORTS_VPX_TIMER_H_

#include "./vpx_config.h"

#include "vpx/vpx_integer.h"

#if CONFIG_OS_SUPPORT

#if defined(_WIN32)
/*
 * Win32 specific includes
 */
#undef NOMINMAX
#define NOMINMAX
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#else
/*
 * POSIX specific includes
 */
#include <sys/time.h>

/* timersub is not provided by msys at this time. */
#ifndef timersub
#define timersub …
#endif
#endif

struct vpx_usec_timer { … };

static INLINE void vpx_usec_timer_start(struct vpx_usec_timer *t) { … }

static INLINE void vpx_usec_timer_mark(struct vpx_usec_timer *t) { … }

static INLINE int64_t vpx_usec_timer_elapsed(struct vpx_usec_timer *t) { … }

#else /* CONFIG_OS_SUPPORT = 0*/

/* Empty timer functions if CONFIG_OS_SUPPORT = 0 */
#ifndef timersub
#define timersub …
#endif

struct vpx_usec_timer {
  void *dummy;
};

static INLINE void vpx_usec_timer_start(struct vpx_usec_timer *t) {}

static INLINE void vpx_usec_timer_mark(struct vpx_usec_timer *t) {}

static INLINE int vpx_usec_timer_elapsed(struct vpx_usec_timer *t) { return 0; }

#endif /* CONFIG_OS_SUPPORT */

#endif  // VPX_VPX_PORTS_VPX_TIMER_H_