/src/libvpx/vp8/common/threading.h

Source (jump to first uncovered line)
/*
 *  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_VP8_COMMON_THREADING_H_
#define VPX_VP8_COMMON_THREADING_H_

#include "./vpx_config.h"

#ifdef __cplusplus
extern "C" {
#endif

#if CONFIG_OS_SUPPORT && CONFIG_MULTITHREAD

#if defined(_WIN32) && !HAVE_PTHREAD_H
/* Win32 */
#include <windows.h>
#else
/* pthreads */
#ifdef __APPLE__
#include <mach/mach_init.h>
#include <mach/semaphore.h>
#include <mach/task.h>
#include <time.h>
#include <unistd.h>
#else
#include <semaphore.h>
#endif
#endif

/* Synchronization macros: Win32 and Pthreads */
#if defined(_WIN32) && !HAVE_PTHREAD_H
#define vp8_sem_t HANDLE
#define vp8_sem_init(sem, pshared, value) \
  (int)((*sem = CreateSemaphore(NULL, value, 32768, NULL)) == NULL)
#define vp8_sem_wait(sem) \
  (int)(WAIT_OBJECT_0 != WaitForSingleObject(*sem, INFINITE))
#define vp8_sem_post(sem) ReleaseSemaphore(*sem, 1, NULL)
#define vp8_sem_destroy(sem) \
  if (*sem) ((int)(CloseHandle(*sem)) == TRUE)
#define thread_sleep(nms) Sleep(nms)

#else

#ifdef __APPLE__
#define vp8_sem_t semaphore_t
#define vp8_sem_init(sem, pshared, value) \
  semaphore_create(mach_task_self(), sem, SYNC_POLICY_FIFO, value)
#define vp8_sem_wait(sem) semaphore_wait(*sem)
#define vp8_sem_post(sem) semaphore_signal(*sem)
#define vp8_sem_destroy(sem) semaphore_destroy(mach_task_self(), *sem)
#else
#include <errno.h>
#include <unistd.h>
#include <sched.h>
#define vp8_sem_t sem_t
#define vp8_sem_init sem_init
static INLINE int vp8_sem_wait(vp8_sem_t *sem) {
  int ret;
  while ((ret = sem_wait(sem)) == -1 && errno == EINTR) {
  }
  return ret;
}
#define vp8_sem_post sem_post
#define vp8_sem_destroy sem_destroy
#endif /* __APPLE__ */
/* Not Windows. Assume pthreads */

/* thread_sleep implementation: yield unless Linux/Unix. */
#if defined(__unix__) || defined(__APPLE__)
#define thread_sleep(nms)
/* {struct timespec ts;ts.tv_sec=0;
    ts.tv_nsec = 1000*nms;nanosleep(&ts, NULL);} */
#else
#define thread_sleep(nms) sched_yield();
#endif /* __unix__ || __APPLE__ */

#endif

#if VPX_ARCH_X86 || VPX_ARCH_X86_64
#include "vpx_ports/x86.h"
#else
#define x86_pause_hint()
#endif

#include "vpx_util/vpx_atomics.h"

static INLINE void vp8_atomic_spin_wait(
    int mb_col, const vpx_atomic_int *last_row_current_mb_col,
    const int nsync) {
  while (mb_col > (vpx_atomic_load_acquire(last_row_current_mb_col) - nsync)) {
    x86_pause_hint();
    thread_sleep(0);
  }
}

#endif /* CONFIG_OS_SUPPORT && CONFIG_MULTITHREAD */

#ifdef __cplusplus
}  // extern "C"
#endif

#endif  // VPX_VP8_COMMON_THREADING_H_

Coverage Report

Created: 2024-09-06 07:53

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
3		*
4		* Use of this source code is governed by a BSD-style license
5		* that can be found in the LICENSE file in the root of the source
6		* tree. An additional intellectual property rights grant can be found
7		* in the file PATENTS. All contributing project authors may
8		* be found in the AUTHORS file in the root of the source tree.
9		*/
10
11		#ifndef VPX_VP8_COMMON_THREADING_H_
12		#define VPX_VP8_COMMON_THREADING_H_
13
14		#include "./vpx_config.h"
15
16		#ifdef __cplusplus
17		extern "C" {
18		#endif
19
20		#if CONFIG_OS_SUPPORT && CONFIG_MULTITHREAD
21
22		#if defined(_WIN32) && !HAVE_PTHREAD_H
23		/* Win32 */
24		#include <windows.h>
25		#else
26		/* pthreads */
27		#ifdef __APPLE__
28		#include <mach/mach_init.h>
29		#include <mach/semaphore.h>
30		#include <mach/task.h>
31		#include <time.h>
32		#include <unistd.h>
33		#else
34		#include <semaphore.h>
35		#endif
36		#endif
37
38		/* Synchronization macros: Win32 and Pthreads */
39		#if defined(_WIN32) && !HAVE_PTHREAD_H
40		#define vp8_sem_t HANDLE
41		#define vp8_sem_init(sem, pshared, value) \
42		(int)((*sem = CreateSemaphore(NULL, value, 32768, NULL)) == NULL)
43		#define vp8_sem_wait(sem) \
44		(int)(WAIT_OBJECT_0 != WaitForSingleObject(*sem, INFINITE))
45		#define vp8_sem_post(sem) ReleaseSemaphore(*sem, 1, NULL)
46		#define vp8_sem_destroy(sem) \
47		if (sem) ((int)(CloseHandle(sem)) == TRUE)
48		#define thread_sleep(nms) Sleep(nms)
49
50		#else
51
52		#ifdef __APPLE__
53		#define vp8_sem_t semaphore_t
54		#define vp8_sem_init(sem, pshared, value) \
55		semaphore_create(mach_task_self(), sem, SYNC_POLICY_FIFO, value)
56		#define vp8_sem_wait(sem) semaphore_wait(*sem)
57		#define vp8_sem_post(sem) semaphore_signal(*sem)
58		#define vp8_sem_destroy(sem) semaphore_destroy(mach_task_self(), *sem)
59		#else
60		#include <errno.h>
61		#include <unistd.h>
62		#include <sched.h>
63		#define vp8_sem_t sem_t
64	0	#define vp8_sem_init sem_init
65	0	static INLINE int vp8_sem_wait(vp8_sem_t *sem) {
66	0	int ret;
67	0	while ((ret = sem_wait(sem)) == -1 && errno == EINTR) {
68	0	}
69	0	return ret;
70	0	} Unexecuted instantiation: vp8_cx_iface.c:vp8_sem_wait Unexecuted instantiation: ethreading.c:vp8_sem_wait Unexecuted instantiation: onyx_if.c:vp8_sem_wait Unexecuted instantiation: pickinter.c:vp8_sem_wait Unexecuted instantiation: picklpf.c:vp8_sem_wait Unexecuted instantiation: vp8_quantize.c:vp8_sem_wait Unexecuted instantiation: ratectrl.c:vp8_sem_wait Unexecuted instantiation: rdopt.c:vp8_sem_wait Unexecuted instantiation: segmentation.c:vp8_sem_wait Unexecuted instantiation: vp8_skin_detection.c:vp8_sem_wait Unexecuted instantiation: tokenize.c:vp8_sem_wait Unexecuted instantiation: temporal_filter.c:vp8_sem_wait Unexecuted instantiation: bitstream.c:vp8_sem_wait Unexecuted instantiation: encodeframe.c:vp8_sem_wait Unexecuted instantiation: encodeintra.c:vp8_sem_wait Unexecuted instantiation: encodemb.c:vp8_sem_wait Unexecuted instantiation: encodemv.c:vp8_sem_wait Unexecuted instantiation: firstpass.c:vp8_sem_wait Unexecuted instantiation: mcomp.c:vp8_sem_wait Unexecuted instantiation: modecosts.c:vp8_sem_wait
71	0	#define vp8_sem_post sem_post
72	0	#define vp8_sem_destroy sem_destroy
73		#endif /* __APPLE__ */
74		/* Not Windows. Assume pthreads */
75
76		/* thread_sleep implementation: yield unless Linux/Unix. */
77		#if defined(__unix__) \|\| defined(__APPLE__)
78		#define thread_sleep(nms)
79		/* {struct timespec ts;ts.tv_sec=0;
80		ts.tv_nsec = 1000nms;nanosleep(&ts, NULL);} /
81		#else
82		#define thread_sleep(nms) sched_yield();
83		#endif /* __unix__ \|\| __APPLE__ */
84
85		#endif
86
87		#if VPX_ARCH_X86 \|\| VPX_ARCH_X86_64
88		#include "vpx_ports/x86.h"
89		#else
90		#define x86_pause_hint()
91		#endif
92
93		#include "vpx_util/vpx_atomics.h"
94
95		static INLINE void vp8_atomic_spin_wait(
96		int mb_col, const vpx_atomic_int *last_row_current_mb_col,
97	0	const int nsync) {
98	0	while (mb_col > (vpx_atomic_load_acquire(last_row_current_mb_col) - nsync)) {
99	0	x86_pause_hint();
100	0	thread_sleep(0);
101	0	}
102	0	} Unexecuted instantiation: vp8_cx_iface.c:vp8_atomic_spin_wait Unexecuted instantiation: ethreading.c:vp8_atomic_spin_wait Unexecuted instantiation: onyx_if.c:vp8_atomic_spin_wait Unexecuted instantiation: pickinter.c:vp8_atomic_spin_wait Unexecuted instantiation: picklpf.c:vp8_atomic_spin_wait Unexecuted instantiation: vp8_quantize.c:vp8_atomic_spin_wait Unexecuted instantiation: ratectrl.c:vp8_atomic_spin_wait Unexecuted instantiation: rdopt.c:vp8_atomic_spin_wait Unexecuted instantiation: segmentation.c:vp8_atomic_spin_wait Unexecuted instantiation: vp8_skin_detection.c:vp8_atomic_spin_wait Unexecuted instantiation: tokenize.c:vp8_atomic_spin_wait Unexecuted instantiation: temporal_filter.c:vp8_atomic_spin_wait Unexecuted instantiation: bitstream.c:vp8_atomic_spin_wait Unexecuted instantiation: encodeframe.c:vp8_atomic_spin_wait Unexecuted instantiation: encodeintra.c:vp8_atomic_spin_wait Unexecuted instantiation: encodemb.c:vp8_atomic_spin_wait Unexecuted instantiation: encodemv.c:vp8_atomic_spin_wait Unexecuted instantiation: firstpass.c:vp8_atomic_spin_wait Unexecuted instantiation: mcomp.c:vp8_atomic_spin_wait Unexecuted instantiation: modecosts.c:vp8_atomic_spin_wait
103
104		#endif /* CONFIG_OS_SUPPORT && CONFIG_MULTITHREAD */
105
106		#ifdef __cplusplus
107		} // extern "C"
108		#endif
109
110		#endif // VPX_VP8_COMMON_THREADING_H_