/* * Copyright © 2018, VideoLAN and dav1d authors * Copyright © 2018, Two Orioles, LLC * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this *    list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, *    this list of conditions and the following disclaimer in the documentation *    and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef DAV1D_SRC_THREAD_H#define DAV1D_SRC_THREAD_H #if defined(_WIN32) #include <limits.h>#include <windows.h> #define PTHREAD_ONCE_INIT INIT_ONCE_STATIC_INIT typedef struct {    HANDLE h;    void *(*func)(void*);    void *arg;} pthread_t; typedef struct {    unsigned stack_size;} pthread_attr_t; typedef SRWLOCK pthread_mutex_t;typedef CONDITION_VARIABLE pthread_cond_t;typedef INIT_ONCE pthread_once_t; void dav1d_init_thread(void);void dav1d_set_thread_name(const wchar_t *name);#define dav1d_set_thread_name(name) dav1d_set_thread_name(L##name) int dav1d_pthread_create(pthread_t *thread, const pthread_attr_t *attr,                         void *(*func)(void*), void *arg);int dav1d_pthread_join(pthread_t *thread, void **res);int dav1d_pthread_once(pthread_once_t *once_control,                       void (*init_routine)(void)); #define pthread_create dav1d_pthread_create#define pthread_join(thread, res) dav1d_pthread_join(&(thread), res)#define pthread_once   dav1d_pthread_once static inline int pthread_attr_init(pthread_attr_t *const attr) {    attr->stack_size = 0;    return 0;} static inline int pthread_attr_destroy(pthread_attr_t *const attr) {    return 0;} static inline int pthread_attr_setstacksize(pthread_attr_t *const attr,                                            const size_t stack_size){    if (stack_size > UINT_MAX) return 1;    attr->stack_size = (unsigned) stack_size;    return 0;} static inline int pthread_mutex_init(pthread_mutex_t *const mutex,                                     const void *const attr){    InitializeSRWLock(mutex);    return 0;} static inline int pthread_mutex_destroy(pthread_mutex_t *const mutex) {    return 0;} static inline int pthread_mutex_lock(pthread_mutex_t *const mutex) {    AcquireSRWLockExclusive(mutex);    return 0;} static inline int pthread_mutex_unlock(pthread_mutex_t *const mutex) {    ReleaseSRWLockExclusive(mutex);    return 0;} static inline int pthread_cond_init(pthread_cond_t *const cond,                                    const void *const attr){    InitializeConditionVariable(cond);    return 0;} static inline int pthread_cond_destroy(pthread_cond_t *const cond) {    return 0;} static inline int pthread_cond_wait(pthread_cond_t *const cond,                                    pthread_mutex_t *const mutex){    return !SleepConditionVariableSRW(cond, mutex, INFINITE, 0);} static inline int pthread_cond_signal(pthread_cond_t *const cond) {    WakeConditionVariable(cond);    return 0;} static inline int pthread_cond_broadcast(pthread_cond_t *const cond) {    WakeAllConditionVariable(cond);    return 0;} #elif defined(__plan9__) typedef struct pthread_t pthread_t;typedef struct pthread_cond_t pthread_cond_t;typedef struct pthread_once_t pthread_once_t;typedef struct pthread_mutex_t pthread_mutex_t; struct pthread_cond_t {    Rendez;    QLock lock;}; struct pthread_once_t {	QLock;	int done;}; struct pthread_mutex_t {	QLock;}; #define dav1d_init_thread() do {} while (0) #define PTHREAD_ONCE_INIT {0} struct pthread_t {    void *waitchan;    void *(*func)(void*);    void *arg;    int pid;}; typedef struct {    unsigned stack_size;} pthread_attr_t; void dav1d_set_thread_name(const char *const name);int dav1d_pthread_join(pthread_t *thread, void **res);int pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*func)(void*), void *arg);int pthread_once(pthread_once_t *once_control, void (*init_routine)(void));#define pthread_join(thread, res) dav1d_pthread_join(&(thread), res) static int pthread_attr_init(pthread_attr_t *const attr) {    attr->stack_size = 0;    return 0;} static int pthread_attr_destroy(pthread_attr_t *const attr) {	USED(attr);    return 0;} static int pthread_attr_setstacksize(pthread_attr_t *const attr,                                     const int stack_size){    attr->stack_size = stack_size;    return 0;} int pthread_mutex_init(pthread_mutex_t *const mutex, const void *const attr);int pthread_mutex_destroy(pthread_mutex_t *const mutex);int pthread_mutex_lock(pthread_mutex_t *const mutex);int pthread_mutex_unlock(pthread_mutex_t *const mutex);int pthread_cond_init(pthread_cond_t *const cond, const void *const attr);int pthread_cond_destroy(pthread_cond_t *const cond);int pthread_cond_wait(pthread_cond_t *const cond, pthread_mutex_t *const mutex);int pthread_cond_signal(pthread_cond_t *const cond);int pthread_cond_broadcast(pthread_cond_t *const cond); #else #include <pthread.h> #define dav1d_init_thread() do {} while (0) /* Thread naming support */ #ifdef __linux__ #include <sys/prctl.h> static inline void dav1d_set_thread_name(const char *const name) {    prctl(PR_SET_NAME, name);} #elif defined(__APPLE__) static inline void dav1d_set_thread_name(const char *const name) {    pthread_setname_np(name);} #elif defined(__DragonFly__) || defined(__FreeBSD__) || defined(__OpenBSD__) #if defined(__FreeBSD__) /* ALIGN from <sys/param.h> conflicts with ALIGN from "common/attributes.h" */#define _SYS_PARAM_H_#include <sys/types.h>#endif#include <pthread_np.h> static inline void dav1d_set_thread_name(const char *const name) {    pthread_set_name_np(pthread_self(), name);} #elif defined(__NetBSD__) static inline void dav1d_set_thread_name(const char *const name) {    pthread_setname_np(pthread_self(), "%s", (void*)name);} #else #define dav1d_set_thread_name(name) do {} while (0) #endif #endif #endif /* DAV1D_SRC_THREAD_H */