ADD_SUBDIRECTORY (external/glutess)
ENDIF ()
-FILE(GLOB VKVG_OBJ_SRC src/*.c)
+FILE(GLOB VKVG_OBJ_SRC src/*.c src/deps/*.c)
SET (VKVG_PUBLIC_HEADERS "include/vkvg.h")
IF (VKVG_SVG)
#define VKVG_LOG_INFO_IBO 0x00000040
#define VKVG_LOG_INFO_VAO (VKVG_LOG_INFO_VBO|VKVG_LOG_INFO_IBO)
#define VKVG_LOG_DBG_ARRAYS 0x00001000
+#define VKVG_LOG_THREADING 0x00000080
#define VKVG_LOG_FULL 0xffffffff
#define VKVG_LOG_INFO 0x00008000//(VKVG_LOG_INFO_PTS|VKVG_LOG_INFO_PATH|VKVG_LOG_INFO_CMD|VKVG_LOG_INFO_VAO)
+++ /dev/null
-/*
- * Copyright (c) 2018-2022 Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of
- * this software and associated documentation files (the "Software"), to deal in
- * the Software without restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
- * Software, and to permit persons to whom the Software is furnished to do so, subject
- * to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include "cross_mutex.h"
-
-int MUTEX_INIT(MUTEX *mutex)
-{
-#ifdef _WIN32
- *mutex = CreateMutex(0, FALSE, 0);;
- return (*mutex==0);
-#elif __APPLE__
-#elif __unix__
- return pthread_mutex_init (mutex, NULL);
-#else
- return -1;
-#endif
-}
-
-int MUTEX_LOCK(MUTEX *mutex)
-{
-#ifdef _WIN32
- return (WaitForSingleObject(*mutex, INFINITE)==WAIT_FAILED?1:0);
-#elif __APPLE__
-#elif __unix__
- return pthread_mutex_lock( mutex );
-#else
- return -1;
-#endif
-}
-
-int MUTEX_UNLOCK(MUTEX *mutex)
-{
-#ifdef _WIN32
- return (ReleaseMutex(*mutex)==0);
-#elif __APPLE__
-#elif __unix__
- return pthread_mutex_unlock( mutex );
-#else
- return -1;
-#endif
-}
-
-int MUTEX_DESTROY(MUTEX *mutex)
-{
-#ifdef _WIN32
- return (CloseHandle(*mutex)==0);
-#elif __APPLE__
-#elif __unix__
- return pthread_mutex_destroy(mutex);
-#else
- return -1;
-#endif
-}
+++ /dev/null
-/*
- * Copyright (c) 2018-2022 Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of
- * this software and associated documentation files (the "Software"), to deal in
- * the Software without restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
- * Software, and to permit persons to whom the Software is furnished to do so, subject
- * to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#ifndef CROSS_MUTEX_H
-#define CROSS_MUTEX_H
-
-//cross platform mutex
-#ifdef _WIN32
- #include "windows.h"
- #include "process.h"
- #define MUTEX HANDLE
-#elif __APPLE__
- #include "pthread.h"
- #define MUTEX pthread_mutex_t
-#elif __unix__
- #include "pthread.h"
- #define MUTEX pthread_mutex_t
-#endif
-
-int MUTEX_INIT(MUTEX *mutex);
-int MUTEX_LOCK(MUTEX *mutex);
-int MUTEX_UNLOCK(MUTEX *mutex);
-int MUTEX_DESTROY(MUTEX *mutex);
-
-#endif // CROSS_MUTEX_H
--- /dev/null
+/* -*- mode: c; tab-width: 2; indent-tabs-mode: nil; -*-
+Copyright (c) 2012 Marcus Geelnard
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+
+ 3. This notice may not be removed or altered from any source
+ distribution.
+*/
+
+/* 2013-01-06 Camilla Löwy <elmindreda@glfw.org>
+ *
+ * Added casts from time_t to DWORD to avoid warnings on VC++.
+ * Fixed time retrieval on POSIX systems.
+ */
+
+#include "tinycthread.h"
+#include <stdlib.h>
+
+/* Platform specific includes */
+#if defined(_TTHREAD_POSIX_)
+ #include <signal.h>
+ #include <sched.h>
+ #include <unistd.h>
+ #include <sys/time.h>
+ #include <errno.h>
+#elif defined(_TTHREAD_WIN32_)
+ #include <process.h>
+ #include <sys/timeb.h>
+#endif
+
+/* Standard, good-to-have defines */
+#ifndef NULL
+ #define NULL (void*)0
+#endif
+#ifndef TRUE
+ #define TRUE 1
+#endif
+#ifndef FALSE
+ #define FALSE 0
+#endif
+
+int mtx_init(mtx_t *mtx, int type)
+{
+#if defined(_TTHREAD_WIN32_)
+ mtx->mAlreadyLocked = FALSE;
+ mtx->mRecursive = type & mtx_recursive;
+ InitializeCriticalSection(&mtx->mHandle);
+ return thrd_success;
+#else
+ int ret;
+ pthread_mutexattr_t attr;
+ pthread_mutexattr_init(&attr);
+ if (type & mtx_recursive)
+ {
+ pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+ }
+ ret = pthread_mutex_init(mtx, &attr);
+ pthread_mutexattr_destroy(&attr);
+ return ret == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+void mtx_destroy(mtx_t *mtx)
+{
+#if defined(_TTHREAD_WIN32_)
+ DeleteCriticalSection(&mtx->mHandle);
+#else
+ pthread_mutex_destroy(mtx);
+#endif
+}
+
+int mtx_lock(mtx_t *mtx)
+{
+#if defined(_TTHREAD_WIN32_)
+ EnterCriticalSection(&mtx->mHandle);
+ if (!mtx->mRecursive)
+ {
+ while(mtx->mAlreadyLocked) Sleep(1000); /* Simulate deadlock... */
+ mtx->mAlreadyLocked = TRUE;
+ }
+ return thrd_success;
+#else
+ return pthread_mutex_lock(mtx) == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+int mtx_timedlock(mtx_t *mtx, const struct timespec *ts)
+{
+ /* FIXME! */
+ (void)mtx;
+ (void)ts;
+ return thrd_error;
+}
+
+int mtx_trylock(mtx_t *mtx)
+{
+#if defined(_TTHREAD_WIN32_)
+ int ret = TryEnterCriticalSection(&mtx->mHandle) ? thrd_success : thrd_busy;
+ if ((!mtx->mRecursive) && (ret == thrd_success) && mtx->mAlreadyLocked)
+ {
+ LeaveCriticalSection(&mtx->mHandle);
+ ret = thrd_busy;
+ }
+ return ret;
+#else
+ return (pthread_mutex_trylock(mtx) == 0) ? thrd_success : thrd_busy;
+#endif
+}
+
+int mtx_unlock(mtx_t *mtx)
+{
+#if defined(_TTHREAD_WIN32_)
+ mtx->mAlreadyLocked = FALSE;
+ LeaveCriticalSection(&mtx->mHandle);
+ return thrd_success;
+#else
+ return pthread_mutex_unlock(mtx) == 0 ? thrd_success : thrd_error;;
+#endif
+}
+
+#if defined(_TTHREAD_WIN32_)
+#define _CONDITION_EVENT_ONE 0
+#define _CONDITION_EVENT_ALL 1
+#endif
+
+int cnd_init(cnd_t *cond)
+{
+#if defined(_TTHREAD_WIN32_)
+ cond->mWaitersCount = 0;
+
+ /* Init critical section */
+ InitializeCriticalSection(&cond->mWaitersCountLock);
+
+ /* Init events */
+ cond->mEvents[_CONDITION_EVENT_ONE] = CreateEvent(NULL, FALSE, FALSE, NULL);
+ if (cond->mEvents[_CONDITION_EVENT_ONE] == NULL)
+ {
+ cond->mEvents[_CONDITION_EVENT_ALL] = NULL;
+ return thrd_error;
+ }
+ cond->mEvents[_CONDITION_EVENT_ALL] = CreateEvent(NULL, TRUE, FALSE, NULL);
+ if (cond->mEvents[_CONDITION_EVENT_ALL] == NULL)
+ {
+ CloseHandle(cond->mEvents[_CONDITION_EVENT_ONE]);
+ cond->mEvents[_CONDITION_EVENT_ONE] = NULL;
+ return thrd_error;
+ }
+
+ return thrd_success;
+#else
+ return pthread_cond_init(cond, NULL) == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+void cnd_destroy(cnd_t *cond)
+{
+#if defined(_TTHREAD_WIN32_)
+ if (cond->mEvents[_CONDITION_EVENT_ONE] != NULL)
+ {
+ CloseHandle(cond->mEvents[_CONDITION_EVENT_ONE]);
+ }
+ if (cond->mEvents[_CONDITION_EVENT_ALL] != NULL)
+ {
+ CloseHandle(cond->mEvents[_CONDITION_EVENT_ALL]);
+ }
+ DeleteCriticalSection(&cond->mWaitersCountLock);
+#else
+ pthread_cond_destroy(cond);
+#endif
+}
+
+int cnd_signal(cnd_t *cond)
+{
+#if defined(_TTHREAD_WIN32_)
+ int haveWaiters;
+
+ /* Are there any waiters? */
+ EnterCriticalSection(&cond->mWaitersCountLock);
+ haveWaiters = (cond->mWaitersCount > 0);
+ LeaveCriticalSection(&cond->mWaitersCountLock);
+
+ /* If we have any waiting threads, send them a signal */
+ if(haveWaiters)
+ {
+ if (SetEvent(cond->mEvents[_CONDITION_EVENT_ONE]) == 0)
+ {
+ return thrd_error;
+ }
+ }
+
+ return thrd_success;
+#else
+ return pthread_cond_signal(cond) == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+int cnd_broadcast(cnd_t *cond)
+{
+#if defined(_TTHREAD_WIN32_)
+ int haveWaiters;
+
+ /* Are there any waiters? */
+ EnterCriticalSection(&cond->mWaitersCountLock);
+ haveWaiters = (cond->mWaitersCount > 0);
+ LeaveCriticalSection(&cond->mWaitersCountLock);
+
+ /* If we have any waiting threads, send them a signal */
+ if(haveWaiters)
+ {
+ if (SetEvent(cond->mEvents[_CONDITION_EVENT_ALL]) == 0)
+ {
+ return thrd_error;
+ }
+ }
+
+ return thrd_success;
+#else
+ return pthread_cond_signal(cond) == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+#if defined(_TTHREAD_WIN32_)
+static int _cnd_timedwait_win32(cnd_t *cond, mtx_t *mtx, DWORD timeout)
+{
+ int result, lastWaiter;
+
+ /* Increment number of waiters */
+ EnterCriticalSection(&cond->mWaitersCountLock);
+ ++ cond->mWaitersCount;
+ LeaveCriticalSection(&cond->mWaitersCountLock);
+
+ /* Release the mutex while waiting for the condition (will decrease
+ the number of waiters when done)... */
+ mtx_unlock(mtx);
+
+ /* Wait for either event to become signaled due to cnd_signal() or
+ cnd_broadcast() being called */
+ result = WaitForMultipleObjects(2, cond->mEvents, FALSE, timeout);
+ if (result == WAIT_TIMEOUT)
+ {
+ return thrd_timeout;
+ }
+ else if (result == (int)WAIT_FAILED)
+ {
+ return thrd_error;
+ }
+
+ /* Check if we are the last waiter */
+ EnterCriticalSection(&cond->mWaitersCountLock);
+ -- cond->mWaitersCount;
+ lastWaiter = (result == (WAIT_OBJECT_0 + _CONDITION_EVENT_ALL)) &&
+ (cond->mWaitersCount == 0);
+ LeaveCriticalSection(&cond->mWaitersCountLock);
+
+ /* If we are the last waiter to be notified to stop waiting, reset the event */
+ if (lastWaiter)
+ {
+ if (ResetEvent(cond->mEvents[_CONDITION_EVENT_ALL]) == 0)
+ {
+ return thrd_error;
+ }
+ }
+
+ /* Re-acquire the mutex */
+ mtx_lock(mtx);
+
+ return thrd_success;
+}
+#endif
+
+int cnd_wait(cnd_t *cond, mtx_t *mtx)
+{
+#if defined(_TTHREAD_WIN32_)
+ return _cnd_timedwait_win32(cond, mtx, INFINITE);
+#else
+ return pthread_cond_wait(cond, mtx) == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+int cnd_timedwait(cnd_t *cond, mtx_t *mtx, const struct timespec *ts)
+{
+#if defined(_TTHREAD_WIN32_)
+ struct timespec now;
+ if (clock_gettime(CLOCK_REALTIME, &now) == 0)
+ {
+ DWORD delta = (DWORD) ((ts->tv_sec - now.tv_sec) * 1000 +
+ (ts->tv_nsec - now.tv_nsec + 500000) / 1000000);
+ return _cnd_timedwait_win32(cond, mtx, delta);
+ }
+ else
+ return thrd_error;
+#else
+ int ret;
+ ret = pthread_cond_timedwait(cond, mtx, ts);
+ if (ret == ETIMEDOUT)
+ {
+ return thrd_timeout;
+ }
+ return ret == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+
+/** Information to pass to the new thread (what to run). */
+typedef struct {
+ thrd_start_t mFunction; /**< Pointer to the function to be executed. */
+ void * mArg; /**< Function argument for the thread function. */
+} _thread_start_info;
+
+/* Thread wrapper function. */
+#if defined(_TTHREAD_WIN32_)
+static unsigned WINAPI _thrd_wrapper_function(void * aArg)
+#elif defined(_TTHREAD_POSIX_)
+static void * _thrd_wrapper_function(void * aArg)
+#endif
+{
+ thrd_start_t fun;
+ void *arg;
+ int res;
+#if defined(_TTHREAD_POSIX_)
+ void *pres;
+#endif
+
+ /* Get thread startup information */
+ _thread_start_info *ti = (_thread_start_info *) aArg;
+ fun = ti->mFunction;
+ arg = ti->mArg;
+
+ /* The thread is responsible for freeing the startup information */
+ free((void *)ti);
+
+ /* Call the actual client thread function */
+ res = fun(arg);
+
+#if defined(_TTHREAD_WIN32_)
+ return res;
+#else
+ pres = malloc(sizeof(int));
+ if (pres != NULL)
+ {
+ *(int*)pres = res;
+ }
+ return pres;
+#endif
+}
+
+int thrd_create(thrd_t *thr, thrd_start_t func, void *arg)
+{
+ /* Fill out the thread startup information (passed to the thread wrapper,
+ which will eventually free it) */
+ _thread_start_info* ti = (_thread_start_info*)malloc(sizeof(_thread_start_info));
+ if (ti == NULL)
+ {
+ return thrd_nomem;
+ }
+ ti->mFunction = func;
+ ti->mArg = arg;
+
+ /* Create the thread */
+#if defined(_TTHREAD_WIN32_)
+ *thr = (HANDLE)_beginthreadex(NULL, 0, _thrd_wrapper_function, (void *)ti, 0, NULL);
+#elif defined(_TTHREAD_POSIX_)
+ if(pthread_create(thr, NULL, _thrd_wrapper_function, (void *)ti) != 0)
+ {
+ *thr = 0;
+ }
+#endif
+
+ /* Did we fail to create the thread? */
+ if(!*thr)
+ {
+ free(ti);
+ return thrd_error;
+ }
+
+ return thrd_success;
+}
+
+thrd_t thrd_current(void)
+{
+#if defined(_TTHREAD_WIN32_)
+ return GetCurrentThread();
+#else
+ return pthread_self();
+#endif
+}
+
+int thrd_detach(thrd_t thr)
+{
+ /* FIXME! */
+ (void)thr;
+ return thrd_error;
+}
+
+int thrd_equal(thrd_t thr0, thrd_t thr1)
+{
+#if defined(_TTHREAD_WIN32_)
+ return thr0 == thr1;
+#else
+ return pthread_equal(thr0, thr1);
+#endif
+}
+
+void thrd_exit(int res)
+{
+#if defined(_TTHREAD_WIN32_)
+ ExitThread(res);
+#else
+ void *pres = malloc(sizeof(int));
+ if (pres != NULL)
+ {
+ *(int*)pres = res;
+ }
+ pthread_exit(pres);
+#endif
+}
+
+int thrd_join(thrd_t thr, int *res)
+{
+#if defined(_TTHREAD_WIN32_)
+ if (WaitForSingleObject(thr, INFINITE) == WAIT_FAILED)
+ {
+ return thrd_error;
+ }
+ if (res != NULL)
+ {
+ DWORD dwRes;
+ GetExitCodeThread(thr, &dwRes);
+ *res = dwRes;
+ }
+#elif defined(_TTHREAD_POSIX_)
+ void *pres;
+ int ires = 0;
+ if (pthread_join(thr, &pres) != 0)
+ {
+ return thrd_error;
+ }
+ if (pres != NULL)
+ {
+ ires = *(int*)pres;
+ free(pres);
+ }
+ if (res != NULL)
+ {
+ *res = ires;
+ }
+#endif
+ return thrd_success;
+}
+
+int thrd_sleep(const struct timespec *time_point, struct timespec *remaining)
+{
+ struct timespec now;
+#if defined(_TTHREAD_WIN32_)
+ DWORD delta;
+#else
+ long delta;
+#endif
+
+ /* Get the current time */
+ if (clock_gettime(CLOCK_REALTIME, &now) != 0)
+ return -2; // FIXME: Some specific error code?
+
+#if defined(_TTHREAD_WIN32_)
+ /* Delta in milliseconds */
+ delta = (DWORD) ((time_point->tv_sec - now.tv_sec) * 1000 +
+ (time_point->tv_nsec - now.tv_nsec + 500000) / 1000000);
+ if (delta > 0)
+ {
+ Sleep(delta);
+ }
+#else
+ /* Delta in microseconds */
+ delta = (time_point->tv_sec - now.tv_sec) * 1000000L +
+ (time_point->tv_nsec - now.tv_nsec + 500L) / 1000L;
+
+ /* On some systems, the usleep argument must be < 1000000 */
+ while (delta > 999999L)
+ {
+ usleep(999999);
+ delta -= 999999L;
+ }
+ if (delta > 0L)
+ {
+ usleep((useconds_t)delta);
+ }
+#endif
+
+ /* We don't support waking up prematurely (yet) */
+ if (remaining)
+ {
+ remaining->tv_sec = 0;
+ remaining->tv_nsec = 0;
+ }
+ return 0;
+}
+
+void thrd_yield(void)
+{
+#if defined(_TTHREAD_WIN32_)
+ Sleep(0);
+#else
+ sched_yield();
+#endif
+}
+
+int tss_create(tss_t *key, tss_dtor_t dtor)
+{
+#if defined(_TTHREAD_WIN32_)
+ /* FIXME: The destructor function is not supported yet... */
+ if (dtor != NULL)
+ {
+ return thrd_error;
+ }
+ *key = TlsAlloc();
+ if (*key == TLS_OUT_OF_INDEXES)
+ {
+ return thrd_error;
+ }
+#else
+ if (pthread_key_create(key, dtor) != 0)
+ {
+ return thrd_error;
+ }
+#endif
+ return thrd_success;
+}
+
+void tss_delete(tss_t key)
+{
+#if defined(_TTHREAD_WIN32_)
+ TlsFree(key);
+#else
+ pthread_key_delete(key);
+#endif
+}
+
+void *tss_get(tss_t key)
+{
+#if defined(_TTHREAD_WIN32_)
+ return TlsGetValue(key);
+#else
+ return pthread_getspecific(key);
+#endif
+}
+
+int tss_set(tss_t key, void *val)
+{
+#if defined(_TTHREAD_WIN32_)
+ if (TlsSetValue(key, val) == 0)
+ {
+ return thrd_error;
+ }
+#else
+ if (pthread_setspecific(key, val) != 0)
+ {
+ return thrd_error;
+ }
+#endif
+ return thrd_success;
+}
+
+#if defined(_TTHREAD_EMULATE_CLOCK_GETTIME_)
+int _tthread_clock_gettime(clockid_t clk_id, struct timespec *ts)
+{
+#if defined(_TTHREAD_WIN32_)
+ struct _timeb tb;
+ _ftime(&tb);
+ ts->tv_sec = (time_t)tb.time;
+ ts->tv_nsec = 1000000L * (long)tb.millitm;
+#else
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ ts->tv_sec = (time_t)tv.tv_sec;
+ ts->tv_nsec = 1000L * (long)tv.tv_usec;
+#endif
+ return 0;
+}
+#endif // _TTHREAD_EMULATE_CLOCK_GETTIME_
+
--- /dev/null
+/* -*- mode: c; tab-width: 2; indent-tabs-mode: nil; -*-
+Copyright (c) 2012 Marcus Geelnard
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+
+ 3. This notice may not be removed or altered from any source
+ distribution.
+*/
+
+#ifndef _TINYCTHREAD_H_
+#define _TINYCTHREAD_H_
+
+/**
+* @file
+* @mainpage TinyCThread API Reference
+*
+* @section intro_sec Introduction
+* TinyCThread is a minimal, portable implementation of basic threading
+* classes for C.
+*
+* They closely mimic the functionality and naming of the C11 standard, and
+* should be easily replaceable with the corresponding standard variants.
+*
+* @section port_sec Portability
+* The Win32 variant uses the native Win32 API for implementing the thread
+* classes, while for other systems, the POSIX threads API (pthread) is used.
+*
+* @section misc_sec Miscellaneous
+* The following special keywords are available: #_Thread_local.
+*
+* For more detailed information, browse the different sections of this
+* documentation. A good place to start is:
+* tinycthread.h.
+*/
+
+/* Which platform are we on? */
+#if !defined(_TTHREAD_PLATFORM_DEFINED_)
+ #if defined(_WIN32) || defined(__WIN32__) || defined(__WINDOWS__)
+ #define _TTHREAD_WIN32_
+ #else
+ #define _TTHREAD_POSIX_
+ #endif
+ #define _TTHREAD_PLATFORM_DEFINED_
+#endif
+
+/* Activate some POSIX functionality (e.g. clock_gettime and recursive mutexes) */
+#if defined(_TTHREAD_POSIX_)
+ #undef _FEATURES_H
+ #if !defined(_GNU_SOURCE)
+ #define _GNU_SOURCE
+ #endif
+ #if !defined(_POSIX_C_SOURCE) || ((_POSIX_C_SOURCE - 0) < 199309L)
+ #undef _POSIX_C_SOURCE
+ #define _POSIX_C_SOURCE 199309L
+ #endif
+ #if !defined(_XOPEN_SOURCE) || ((_XOPEN_SOURCE - 0) < 500)
+ #undef _XOPEN_SOURCE
+ #define _XOPEN_SOURCE 500
+ #endif
+#endif
+
+/* Generic includes */
+#include <time.h>
+
+/* Platform specific includes */
+#if defined(_TTHREAD_POSIX_)
+ #include <sys/time.h>
+ #include <pthread.h>
+#elif defined(_TTHREAD_WIN32_)
+ #ifndef WIN32_LEAN_AND_MEAN
+ #define WIN32_LEAN_AND_MEAN
+ #define __UNDEF_LEAN_AND_MEAN
+ #endif
+ #include <windows.h>
+ #ifdef __UNDEF_LEAN_AND_MEAN
+ #undef WIN32_LEAN_AND_MEAN
+ #undef __UNDEF_LEAN_AND_MEAN
+ #endif
+#endif
+
+/* Workaround for missing TIME_UTC: If time.h doesn't provide TIME_UTC,
+ it's quite likely that libc does not support it either. Hence, fall back to
+ the only other supported time specifier: CLOCK_REALTIME (and if that fails,
+ we're probably emulating clock_gettime anyway, so anything goes). */
+#ifndef TIME_UTC
+ #ifdef CLOCK_REALTIME
+ #define TIME_UTC CLOCK_REALTIME
+ #else
+ #define TIME_UTC 0
+ #endif
+#endif
+
+/* Workaround for missing clock_gettime (most Windows compilers, afaik) */
+#if defined(_TTHREAD_WIN32_) || defined(__APPLE_CC__)
+#define _TTHREAD_EMULATE_CLOCK_GETTIME_
+/* Emulate struct timespec */
+#if defined(_TTHREAD_WIN32_)
+struct _ttherad_timespec {
+ time_t tv_sec;
+ long tv_nsec;
+};
+#define timespec _ttherad_timespec
+#endif
+
+/* Emulate clockid_t */
+typedef int _tthread_clockid_t;
+#define clockid_t _tthread_clockid_t
+
+/* Emulate clock_gettime */
+int _tthread_clock_gettime(clockid_t clk_id, struct timespec *ts);
+#define clock_gettime _tthread_clock_gettime
+#ifndef CLOCK_REALTIME
+ #define CLOCK_REALTIME 0
+#endif
+#endif
+
+
+/** TinyCThread version (major number). */
+#define TINYCTHREAD_VERSION_MAJOR 1
+/** TinyCThread version (minor number). */
+#define TINYCTHREAD_VERSION_MINOR 1
+/** TinyCThread version (full version). */
+#define TINYCTHREAD_VERSION (TINYCTHREAD_VERSION_MAJOR * 100 + TINYCTHREAD_VERSION_MINOR)
+
+/**
+* @def _Thread_local
+* Thread local storage keyword.
+* A variable that is declared with the @c _Thread_local keyword makes the
+* value of the variable local to each thread (known as thread-local storage,
+* or TLS). Example usage:
+* @code
+* // This variable is local to each thread.
+* _Thread_local int variable;
+* @endcode
+* @note The @c _Thread_local keyword is a macro that maps to the corresponding
+* compiler directive (e.g. @c __declspec(thread)).
+* @note This directive is currently not supported on Mac OS X (it will give
+* a compiler error), since compile-time TLS is not supported in the Mac OS X
+* executable format. Also, some older versions of MinGW (before GCC 4.x) do
+* not support this directive.
+* @hideinitializer
+*/
+
+/* FIXME: Check for a PROPER value of __STDC_VERSION__ to know if we have C11 */
+#if !(defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201102L)) && !defined(_Thread_local)
+ #if defined(__GNUC__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_CC) || defined(__IBMCPP__)
+ #define _Thread_local __thread
+ #else
+ #define _Thread_local __declspec(thread)
+ #endif
+#endif
+
+/* Macros */
+#define TSS_DTOR_ITERATIONS 0
+
+/* Function return values */
+#define thrd_error 0 /**< The requested operation failed */
+#define thrd_success 1 /**< The requested operation succeeded */
+#define thrd_timeout 2 /**< The time specified in the call was reached without acquiring the requested resource */
+#define thrd_busy 3 /**< The requested operation failed because a tesource requested by a test and return function is already in use */
+#define thrd_nomem 4 /**< The requested operation failed because it was unable to allocate memory */
+
+/* Mutex types */
+#define mtx_plain 1
+#define mtx_timed 2
+#define mtx_try 4
+#define mtx_recursive 8
+
+/* Mutex */
+#if defined(_TTHREAD_WIN32_)
+typedef struct {
+ CRITICAL_SECTION mHandle; /* Critical section handle */
+ int mAlreadyLocked; /* TRUE if the mutex is already locked */
+ int mRecursive; /* TRUE if the mutex is recursive */
+} mtx_t;
+#else
+typedef pthread_mutex_t mtx_t;
+#endif
+
+/** Create a mutex object.
+* @param mtx A mutex object.
+* @param type Bit-mask that must have one of the following six values:
+* @li @c mtx_plain for a simple non-recursive mutex
+* @li @c mtx_timed for a non-recursive mutex that supports timeout
+* @li @c mtx_try for a non-recursive mutex that supports test and return
+* @li @c mtx_plain | @c mtx_recursive (same as @c mtx_plain, but recursive)
+* @li @c mtx_timed | @c mtx_recursive (same as @c mtx_timed, but recursive)
+* @li @c mtx_try | @c mtx_recursive (same as @c mtx_try, but recursive)
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int mtx_init(mtx_t *mtx, int type);
+
+/** Release any resources used by the given mutex.
+* @param mtx A mutex object.
+*/
+void mtx_destroy(mtx_t *mtx);
+
+/** Lock the given mutex.
+* Blocks until the given mutex can be locked. If the mutex is non-recursive, and
+* the calling thread already has a lock on the mutex, this call will block
+* forever.
+* @param mtx A mutex object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int mtx_lock(mtx_t *mtx);
+
+/** NOT YET IMPLEMENTED.
+*/
+int mtx_timedlock(mtx_t *mtx, const struct timespec *ts);
+
+/** Try to lock the given mutex.
+* The specified mutex shall support either test and return or timeout. If the
+* mutex is already locked, the function returns without blocking.
+* @param mtx A mutex object.
+* @return @ref thrd_success on success, or @ref thrd_busy if the resource
+* requested is already in use, or @ref thrd_error if the request could not be
+* honored.
+*/
+int mtx_trylock(mtx_t *mtx);
+
+/** Unlock the given mutex.
+* @param mtx A mutex object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int mtx_unlock(mtx_t *mtx);
+
+/* Condition variable */
+#if defined(_TTHREAD_WIN32_)
+typedef struct {
+ HANDLE mEvents[2]; /* Signal and broadcast event HANDLEs. */
+ unsigned int mWaitersCount; /* Count of the number of waiters. */
+ CRITICAL_SECTION mWaitersCountLock; /* Serialize access to mWaitersCount. */
+} cnd_t;
+#else
+typedef pthread_cond_t cnd_t;
+#endif
+
+/** Create a condition variable object.
+* @param cond A condition variable object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int cnd_init(cnd_t *cond);
+
+/** Release any resources used by the given condition variable.
+* @param cond A condition variable object.
+*/
+void cnd_destroy(cnd_t *cond);
+
+/** Signal a condition variable.
+* Unblocks one of the threads that are blocked on the given condition variable
+* at the time of the call. If no threads are blocked on the condition variable
+* at the time of the call, the function does nothing and return success.
+* @param cond A condition variable object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int cnd_signal(cnd_t *cond);
+
+/** Broadcast a condition variable.
+* Unblocks all of the threads that are blocked on the given condition variable
+* at the time of the call. If no threads are blocked on the condition variable
+* at the time of the call, the function does nothing and return success.
+* @param cond A condition variable object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int cnd_broadcast(cnd_t *cond);
+
+/** Wait for a condition variable to become signaled.
+* The function atomically unlocks the given mutex and endeavors to block until
+* the given condition variable is signaled by a call to cnd_signal or to
+* cnd_broadcast. When the calling thread becomes unblocked it locks the mutex
+* before it returns.
+* @param cond A condition variable object.
+* @param mtx A mutex object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int cnd_wait(cnd_t *cond, mtx_t *mtx);
+
+/** Wait for a condition variable to become signaled.
+* The function atomically unlocks the given mutex and endeavors to block until
+* the given condition variable is signaled by a call to cnd_signal or to
+* cnd_broadcast, or until after the specified time. When the calling thread
+* becomes unblocked it locks the mutex before it returns.
+* @param cond A condition variable object.
+* @param mtx A mutex object.
+* @param xt A point in time at which the request will time out (absolute time).
+* @return @ref thrd_success upon success, or @ref thrd_timeout if the time
+* specified in the call was reached without acquiring the requested resource, or
+* @ref thrd_error if the request could not be honored.
+*/
+int cnd_timedwait(cnd_t *cond, mtx_t *mtx, const struct timespec *ts);
+
+/* Thread */
+#if defined(_TTHREAD_WIN32_)
+typedef HANDLE thrd_t;
+#else
+typedef pthread_t thrd_t;
+#endif
+
+/** Thread start function.
+* Any thread that is started with the @ref thrd_create() function must be
+* started through a function of this type.
+* @param arg The thread argument (the @c arg argument of the corresponding
+* @ref thrd_create() call).
+* @return The thread return value, which can be obtained by another thread
+* by using the @ref thrd_join() function.
+*/
+typedef int (*thrd_start_t)(void *arg);
+
+/** Create a new thread.
+* @param thr Identifier of the newly created thread.
+* @param func A function pointer to the function that will be executed in
+* the new thread.
+* @param arg An argument to the thread function.
+* @return @ref thrd_success on success, or @ref thrd_nomem if no memory could
+* be allocated for the thread requested, or @ref thrd_error if the request
+* could not be honored.
+* @note A thread’s identifier may be reused for a different thread once the
+* original thread has exited and either been detached or joined to another
+* thread.
+*/
+int thrd_create(thrd_t *thr, thrd_start_t func, void *arg);
+
+/** Identify the calling thread.
+* @return The identifier of the calling thread.
+*/
+thrd_t thrd_current(void);
+
+/** NOT YET IMPLEMENTED.
+*/
+int thrd_detach(thrd_t thr);
+
+/** Compare two thread identifiers.
+* The function determines if two thread identifiers refer to the same thread.
+* @return Zero if the two thread identifiers refer to different threads.
+* Otherwise a nonzero value is returned.
+*/
+int thrd_equal(thrd_t thr0, thrd_t thr1);
+
+/** Terminate execution of the calling thread.
+* @param res Result code of the calling thread.
+*/
+void thrd_exit(int res);
+
+/** Wait for a thread to terminate.
+* The function joins the given thread with the current thread by blocking
+* until the other thread has terminated.
+* @param thr The thread to join with.
+* @param res If this pointer is not NULL, the function will store the result
+* code of the given thread in the integer pointed to by @c res.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int thrd_join(thrd_t thr, int *res);
+
+/** Put the calling thread to sleep.
+* Suspend execution of the calling thread.
+* @param time_point A point in time at which the thread will resume (absolute time).
+* @param remaining If non-NULL, this parameter will hold the remaining time until
+* time_point upon return. This will typically be zero, but if
+* the thread was woken up by a signal that is not ignored before
+* time_point was reached @c remaining will hold a positive
+* time.
+* @return 0 (zero) on successful sleep, or -1 if an interrupt occurred.
+*/
+int thrd_sleep(const struct timespec *time_point, struct timespec *remaining);
+
+/** Yield execution to another thread.
+* Permit other threads to run, even if the current thread would ordinarily
+* continue to run.
+*/
+void thrd_yield(void);
+
+/* Thread local storage */
+#if defined(_TTHREAD_WIN32_)
+typedef DWORD tss_t;
+#else
+typedef pthread_key_t tss_t;
+#endif
+
+/** Destructor function for a thread-specific storage.
+* @param val The value of the destructed thread-specific storage.
+*/
+typedef void (*tss_dtor_t)(void *val);
+
+/** Create a thread-specific storage.
+* @param key The unique key identifier that will be set if the function is
+* successful.
+* @param dtor Destructor function. This can be NULL.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+* @note The destructor function is not supported under Windows. If @c dtor is
+* not NULL when calling this function under Windows, the function will fail
+* and return @ref thrd_error.
+*/
+int tss_create(tss_t *key, tss_dtor_t dtor);
+
+/** Delete a thread-specific storage.
+* The function releases any resources used by the given thread-specific
+* storage.
+* @param key The key that shall be deleted.
+*/
+void tss_delete(tss_t key);
+
+/** Get the value for a thread-specific storage.
+* @param key The thread-specific storage identifier.
+* @return The value for the current thread held in the given thread-specific
+* storage.
+*/
+void *tss_get(tss_t key);
+
+/** Set the value for a thread-specific storage.
+* @param key The thread-specific storage identifier.
+* @param val The value of the thread-specific storage to set for the current
+* thread.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int tss_set(tss_t key, void *val);
+
+
+#endif /* _TINYTHREAD_H_ */
+
ctx->renderPassBeginInfo.clearValueCount = 2;
else
ctx->renderPassBeginInfo.clearValueCount = 3;
+
ctx->selectedCharSize = 10 << 6;
ctx->currentFont = NULL;
ctx->selectedFontName[0] = 0;
}vkvg_context_save_t;
typedef struct _vkvg_context_t {
- VkvgContext pPrev; //double linked list of contexts
- VkvgContext pNext;
+ //VkvgContext pPrev; //double linked list of contexts
+ //VkvgContext pNext;
uint32_t references; //reference count
VkvgDevice dev;
dev->phyMemProps = phyInfos->memProps;
dev->gQueue = vkh_queue_create ((VkhDevice)dev, qFamIdx, qIndex);
- MUTEX_INIT (&dev->gQMutex);
+ mtx_init (&dev->gQMutex, mtx_plain);
vkh_phyinfo_destroy (phyInfos);
};
vmaCreateAllocator(&allocatorInfo, &dev->allocator);
- dev->lastCtx= NULL;
+ //dev->lastCtx= NULL;
dev->cmdPool= vkh_cmd_pool_create ((VkhDevice)dev, dev->gQueue->familyIndex, VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT);
dev->cmd = vkh_cmd_buff_create ((VkhDevice)dev, dev->cmdPool, VK_COMMAND_BUFFER_LEVEL_PRIMARY);
vmaDestroyAllocator (dev->allocator);
- MUTEX_DESTROY (&dev->gQMutex);
+ mtx_destroy (&dev->gQMutex);
if (dev->vkhDev) {
VkhApp app = vkh_device_get_app (dev->vkhDev);
return false;
}
void _flush_all_contexes (VkvgDevice dev){
- VkvgContext ctx = dev->lastCtx;
+ /*VkvgContext ctx = dev->lastCtx;
while (ctx != NULL){
if (ctx->cmdStarted)
_flush_cmd_until_vx_base (ctx);
ctx = ctx->pPrev;
- }
+ }*/
}
//TODO:save/reload cache in user temp directory
void _create_pipeline_cache(VkvgDevice dev){
}
void _submit_cmd (VkvgDevice dev, VkCommandBuffer* cmd, VkFence fence) {
- MUTEX_LOCK (&dev->gQMutex);
+ mtx_lock (&dev->gQMutex);
+ LOG(VKVG_LOG_THREADING, "[THREADING]start vk_cmd_submit %16lx\n", (unsigned long)thrd_current());
vkh_cmd_submit (dev->gQueue, cmd, fence);
- MUTEX_UNLOCK (&dev->gQMutex);
+ vkDeviceWaitIdle(dev->vkDev);
+ LOG(VKVG_LOG_THREADING, "[THREADING]end vk_cmd_submit %16lx\n", (unsigned long)thrd_current());
+ mtx_unlock (&dev->gQMutex);
}
bool _init_function_pointers (VkvgDevice dev) {
VkImageTiling pngStagTiling; /**< tiling for the blit operation */
VkhQueue gQueue; /**< Vulkan Queue with Graphic flag */
- MUTEX gQMutex; /**< queue submission has to be externally syncronized */
+ mtx_t gQMutex; /**< queue submission has to be externally syncronized */
VkRenderPass renderPass; /**< Vulkan render pass, common for all surfaces */
VkRenderPass renderPass_ClearStencil;/**< Vulkan render pass for first draw with context, stencil has to be cleared */
VkRenderPass renderPass_ClearAll; /**< Vulkan render pass for new surface, clear all attacments*/
vkvg_status_t status; /**< Current status of device, affected by last operation */
_font_cache_t* fontCache; /**< Store everything relative to common font caching system */
+
VkvgContext lastCtx; /**< last element of double linked list of context, used to trigger font caching system update on all contexts*/
int32_t cachedContextCount;
cache->texLength = newSize;
cache->texture = newImg;
- VkvgContext next = dev->lastCtx;
+ /*VkvgContext next = dev->lastCtx;
while (next != NULL){
_update_descriptor_set (next, cache->texture, next->dsFont);
next = next->pPrev;
- }
+ }*/
_wait_idle(dev);
}
///Start a new line in font cache, increase texture layer count if needed.
#endif
#include "cross_os.h"
-#include "cross_mutex.h"
+#include "deps/tinycthread.h"
//width of the stencil buffer will determine the number of context saving/restore layers
//the two first bits of the stencil are the FILL and the CLIP bits, all other bits are
//used to store clipping bit on context saving. 8 bit stencil will allow 6 save/restore layer
PRIVATE
${Vulkan_LIBRARIES}
${GLFW3_LIBRARY}
+ Threads::Threads
)
IF (TARGET vkvg_static)
TARGET_LINK_LIBRARIES(${TEST_NAME} PRIVATE vkvg_static)
ENDFUNCTION (buildtest)
-ADD_LIBRARY(tests_common OBJECT common/vkengine.c common/test.c common/rnd.c)
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
+find_package(Threads REQUIRED)
+
+ADD_LIBRARY(tests_common OBJECT common/vkengine.c common/test.c common/rnd.c common/tinycthread.c)
TARGET_INCLUDE_DIRECTORIES(tests_common
PRIVATE
file(GLOB TESTS
"*.c"
"perfs/*.c"
+ "multithreading/*.c"
)
IF (VKVG_SVG)
--- /dev/null
+/* -*- mode: c; tab-width: 2; indent-tabs-mode: nil; -*-
+Copyright (c) 2012 Marcus Geelnard
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+
+ 3. This notice may not be removed or altered from any source
+ distribution.
+*/
+
+/* 2013-01-06 Camilla Löwy <elmindreda@glfw.org>
+ *
+ * Added casts from time_t to DWORD to avoid warnings on VC++.
+ * Fixed time retrieval on POSIX systems.
+ */
+
+#include "tinycthread.h"
+#include <stdlib.h>
+
+/* Platform specific includes */
+#if defined(_TTHREAD_POSIX_)
+ #include <signal.h>
+ #include <sched.h>
+ #include <unistd.h>
+ #include <sys/time.h>
+ #include <errno.h>
+#elif defined(_TTHREAD_WIN32_)
+ #include <process.h>
+ #include <sys/timeb.h>
+#endif
+
+/* Standard, good-to-have defines */
+#ifndef NULL
+ #define NULL (void*)0
+#endif
+#ifndef TRUE
+ #define TRUE 1
+#endif
+#ifndef FALSE
+ #define FALSE 0
+#endif
+
+int mtx_init(mtx_t *mtx, int type)
+{
+#if defined(_TTHREAD_WIN32_)
+ mtx->mAlreadyLocked = FALSE;
+ mtx->mRecursive = type & mtx_recursive;
+ InitializeCriticalSection(&mtx->mHandle);
+ return thrd_success;
+#else
+ int ret;
+ pthread_mutexattr_t attr;
+ pthread_mutexattr_init(&attr);
+ if (type & mtx_recursive)
+ {
+ pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+ }
+ ret = pthread_mutex_init(mtx, &attr);
+ pthread_mutexattr_destroy(&attr);
+ return ret == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+void mtx_destroy(mtx_t *mtx)
+{
+#if defined(_TTHREAD_WIN32_)
+ DeleteCriticalSection(&mtx->mHandle);
+#else
+ pthread_mutex_destroy(mtx);
+#endif
+}
+
+int mtx_lock(mtx_t *mtx)
+{
+#if defined(_TTHREAD_WIN32_)
+ EnterCriticalSection(&mtx->mHandle);
+ if (!mtx->mRecursive)
+ {
+ while(mtx->mAlreadyLocked) Sleep(1000); /* Simulate deadlock... */
+ mtx->mAlreadyLocked = TRUE;
+ }
+ return thrd_success;
+#else
+ return pthread_mutex_lock(mtx) == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+int mtx_timedlock(mtx_t *mtx, const struct timespec *ts)
+{
+ /* FIXME! */
+ (void)mtx;
+ (void)ts;
+ return thrd_error;
+}
+
+int mtx_trylock(mtx_t *mtx)
+{
+#if defined(_TTHREAD_WIN32_)
+ int ret = TryEnterCriticalSection(&mtx->mHandle) ? thrd_success : thrd_busy;
+ if ((!mtx->mRecursive) && (ret == thrd_success) && mtx->mAlreadyLocked)
+ {
+ LeaveCriticalSection(&mtx->mHandle);
+ ret = thrd_busy;
+ }
+ return ret;
+#else
+ return (pthread_mutex_trylock(mtx) == 0) ? thrd_success : thrd_busy;
+#endif
+}
+
+int mtx_unlock(mtx_t *mtx)
+{
+#if defined(_TTHREAD_WIN32_)
+ mtx->mAlreadyLocked = FALSE;
+ LeaveCriticalSection(&mtx->mHandle);
+ return thrd_success;
+#else
+ return pthread_mutex_unlock(mtx) == 0 ? thrd_success : thrd_error;;
+#endif
+}
+
+#if defined(_TTHREAD_WIN32_)
+#define _CONDITION_EVENT_ONE 0
+#define _CONDITION_EVENT_ALL 1
+#endif
+
+int cnd_init(cnd_t *cond)
+{
+#if defined(_TTHREAD_WIN32_)
+ cond->mWaitersCount = 0;
+
+ /* Init critical section */
+ InitializeCriticalSection(&cond->mWaitersCountLock);
+
+ /* Init events */
+ cond->mEvents[_CONDITION_EVENT_ONE] = CreateEvent(NULL, FALSE, FALSE, NULL);
+ if (cond->mEvents[_CONDITION_EVENT_ONE] == NULL)
+ {
+ cond->mEvents[_CONDITION_EVENT_ALL] = NULL;
+ return thrd_error;
+ }
+ cond->mEvents[_CONDITION_EVENT_ALL] = CreateEvent(NULL, TRUE, FALSE, NULL);
+ if (cond->mEvents[_CONDITION_EVENT_ALL] == NULL)
+ {
+ CloseHandle(cond->mEvents[_CONDITION_EVENT_ONE]);
+ cond->mEvents[_CONDITION_EVENT_ONE] = NULL;
+ return thrd_error;
+ }
+
+ return thrd_success;
+#else
+ return pthread_cond_init(cond, NULL) == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+void cnd_destroy(cnd_t *cond)
+{
+#if defined(_TTHREAD_WIN32_)
+ if (cond->mEvents[_CONDITION_EVENT_ONE] != NULL)
+ {
+ CloseHandle(cond->mEvents[_CONDITION_EVENT_ONE]);
+ }
+ if (cond->mEvents[_CONDITION_EVENT_ALL] != NULL)
+ {
+ CloseHandle(cond->mEvents[_CONDITION_EVENT_ALL]);
+ }
+ DeleteCriticalSection(&cond->mWaitersCountLock);
+#else
+ pthread_cond_destroy(cond);
+#endif
+}
+
+int cnd_signal(cnd_t *cond)
+{
+#if defined(_TTHREAD_WIN32_)
+ int haveWaiters;
+
+ /* Are there any waiters? */
+ EnterCriticalSection(&cond->mWaitersCountLock);
+ haveWaiters = (cond->mWaitersCount > 0);
+ LeaveCriticalSection(&cond->mWaitersCountLock);
+
+ /* If we have any waiting threads, send them a signal */
+ if(haveWaiters)
+ {
+ if (SetEvent(cond->mEvents[_CONDITION_EVENT_ONE]) == 0)
+ {
+ return thrd_error;
+ }
+ }
+
+ return thrd_success;
+#else
+ return pthread_cond_signal(cond) == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+int cnd_broadcast(cnd_t *cond)
+{
+#if defined(_TTHREAD_WIN32_)
+ int haveWaiters;
+
+ /* Are there any waiters? */
+ EnterCriticalSection(&cond->mWaitersCountLock);
+ haveWaiters = (cond->mWaitersCount > 0);
+ LeaveCriticalSection(&cond->mWaitersCountLock);
+
+ /* If we have any waiting threads, send them a signal */
+ if(haveWaiters)
+ {
+ if (SetEvent(cond->mEvents[_CONDITION_EVENT_ALL]) == 0)
+ {
+ return thrd_error;
+ }
+ }
+
+ return thrd_success;
+#else
+ return pthread_cond_signal(cond) == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+#if defined(_TTHREAD_WIN32_)
+static int _cnd_timedwait_win32(cnd_t *cond, mtx_t *mtx, DWORD timeout)
+{
+ int result, lastWaiter;
+
+ /* Increment number of waiters */
+ EnterCriticalSection(&cond->mWaitersCountLock);
+ ++ cond->mWaitersCount;
+ LeaveCriticalSection(&cond->mWaitersCountLock);
+
+ /* Release the mutex while waiting for the condition (will decrease
+ the number of waiters when done)... */
+ mtx_unlock(mtx);
+
+ /* Wait for either event to become signaled due to cnd_signal() or
+ cnd_broadcast() being called */
+ result = WaitForMultipleObjects(2, cond->mEvents, FALSE, timeout);
+ if (result == WAIT_TIMEOUT)
+ {
+ return thrd_timeout;
+ }
+ else if (result == (int)WAIT_FAILED)
+ {
+ return thrd_error;
+ }
+
+ /* Check if we are the last waiter */
+ EnterCriticalSection(&cond->mWaitersCountLock);
+ -- cond->mWaitersCount;
+ lastWaiter = (result == (WAIT_OBJECT_0 + _CONDITION_EVENT_ALL)) &&
+ (cond->mWaitersCount == 0);
+ LeaveCriticalSection(&cond->mWaitersCountLock);
+
+ /* If we are the last waiter to be notified to stop waiting, reset the event */
+ if (lastWaiter)
+ {
+ if (ResetEvent(cond->mEvents[_CONDITION_EVENT_ALL]) == 0)
+ {
+ return thrd_error;
+ }
+ }
+
+ /* Re-acquire the mutex */
+ mtx_lock(mtx);
+
+ return thrd_success;
+}
+#endif
+
+int cnd_wait(cnd_t *cond, mtx_t *mtx)
+{
+#if defined(_TTHREAD_WIN32_)
+ return _cnd_timedwait_win32(cond, mtx, INFINITE);
+#else
+ return pthread_cond_wait(cond, mtx) == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+int cnd_timedwait(cnd_t *cond, mtx_t *mtx, const struct timespec *ts)
+{
+#if defined(_TTHREAD_WIN32_)
+ struct timespec now;
+ if (clock_gettime(CLOCK_REALTIME, &now) == 0)
+ {
+ DWORD delta = (DWORD) ((ts->tv_sec - now.tv_sec) * 1000 +
+ (ts->tv_nsec - now.tv_nsec + 500000) / 1000000);
+ return _cnd_timedwait_win32(cond, mtx, delta);
+ }
+ else
+ return thrd_error;
+#else
+ int ret;
+ ret = pthread_cond_timedwait(cond, mtx, ts);
+ if (ret == ETIMEDOUT)
+ {
+ return thrd_timeout;
+ }
+ return ret == 0 ? thrd_success : thrd_error;
+#endif
+}
+
+
+/** Information to pass to the new thread (what to run). */
+typedef struct {
+ thrd_start_t mFunction; /**< Pointer to the function to be executed. */
+ void * mArg; /**< Function argument for the thread function. */
+} _thread_start_info;
+
+/* Thread wrapper function. */
+#if defined(_TTHREAD_WIN32_)
+static unsigned WINAPI _thrd_wrapper_function(void * aArg)
+#elif defined(_TTHREAD_POSIX_)
+static void * _thrd_wrapper_function(void * aArg)
+#endif
+{
+ thrd_start_t fun;
+ void *arg;
+ int res;
+#if defined(_TTHREAD_POSIX_)
+ void *pres;
+#endif
+
+ /* Get thread startup information */
+ _thread_start_info *ti = (_thread_start_info *) aArg;
+ fun = ti->mFunction;
+ arg = ti->mArg;
+
+ /* The thread is responsible for freeing the startup information */
+ free((void *)ti);
+
+ /* Call the actual client thread function */
+ res = fun(arg);
+
+#if defined(_TTHREAD_WIN32_)
+ return res;
+#else
+ pres = malloc(sizeof(int));
+ if (pres != NULL)
+ {
+ *(int*)pres = res;
+ }
+ return pres;
+#endif
+}
+
+int thrd_create(thrd_t *thr, thrd_start_t func, void *arg)
+{
+ /* Fill out the thread startup information (passed to the thread wrapper,
+ which will eventually free it) */
+ _thread_start_info* ti = (_thread_start_info*)malloc(sizeof(_thread_start_info));
+ if (ti == NULL)
+ {
+ return thrd_nomem;
+ }
+ ti->mFunction = func;
+ ti->mArg = arg;
+
+ /* Create the thread */
+#if defined(_TTHREAD_WIN32_)
+ *thr = (HANDLE)_beginthreadex(NULL, 0, _thrd_wrapper_function, (void *)ti, 0, NULL);
+#elif defined(_TTHREAD_POSIX_)
+ if(pthread_create(thr, NULL, _thrd_wrapper_function, (void *)ti) != 0)
+ {
+ *thr = 0;
+ }
+#endif
+
+ /* Did we fail to create the thread? */
+ if(!*thr)
+ {
+ free(ti);
+ return thrd_error;
+ }
+
+ return thrd_success;
+}
+
+thrd_t thrd_current(void)
+{
+#if defined(_TTHREAD_WIN32_)
+ return GetCurrentThread();
+#else
+ return pthread_self();
+#endif
+}
+
+int thrd_detach(thrd_t thr)
+{
+ /* FIXME! */
+ (void)thr;
+ return thrd_error;
+}
+
+int thrd_equal(thrd_t thr0, thrd_t thr1)
+{
+#if defined(_TTHREAD_WIN32_)
+ return thr0 == thr1;
+#else
+ return pthread_equal(thr0, thr1);
+#endif
+}
+
+void thrd_exit(int res)
+{
+#if defined(_TTHREAD_WIN32_)
+ ExitThread(res);
+#else
+ void *pres = malloc(sizeof(int));
+ if (pres != NULL)
+ {
+ *(int*)pres = res;
+ }
+ pthread_exit(pres);
+#endif
+}
+
+int thrd_join(thrd_t thr, int *res)
+{
+#if defined(_TTHREAD_WIN32_)
+ if (WaitForSingleObject(thr, INFINITE) == WAIT_FAILED)
+ {
+ return thrd_error;
+ }
+ if (res != NULL)
+ {
+ DWORD dwRes;
+ GetExitCodeThread(thr, &dwRes);
+ *res = dwRes;
+ }
+#elif defined(_TTHREAD_POSIX_)
+ void *pres;
+ int ires = 0;
+ if (pthread_join(thr, &pres) != 0)
+ {
+ return thrd_error;
+ }
+ if (pres != NULL)
+ {
+ ires = *(int*)pres;
+ free(pres);
+ }
+ if (res != NULL)
+ {
+ *res = ires;
+ }
+#endif
+ return thrd_success;
+}
+
+int thrd_sleep(const struct timespec *time_point, struct timespec *remaining)
+{
+ struct timespec now;
+#if defined(_TTHREAD_WIN32_)
+ DWORD delta;
+#else
+ long delta;
+#endif
+
+ /* Get the current time */
+ if (clock_gettime(CLOCK_REALTIME, &now) != 0)
+ return -2; // FIXME: Some specific error code?
+
+#if defined(_TTHREAD_WIN32_)
+ /* Delta in milliseconds */
+ delta = (DWORD) ((time_point->tv_sec - now.tv_sec) * 1000 +
+ (time_point->tv_nsec - now.tv_nsec + 500000) / 1000000);
+ if (delta > 0)
+ {
+ Sleep(delta);
+ }
+#else
+ /* Delta in microseconds */
+ delta = (time_point->tv_sec - now.tv_sec) * 1000000L +
+ (time_point->tv_nsec - now.tv_nsec + 500L) / 1000L;
+
+ /* On some systems, the usleep argument must be < 1000000 */
+ while (delta > 999999L)
+ {
+ usleep(999999);
+ delta -= 999999L;
+ }
+ if (delta > 0L)
+ {
+ usleep((useconds_t)delta);
+ }
+#endif
+
+ /* We don't support waking up prematurely (yet) */
+ if (remaining)
+ {
+ remaining->tv_sec = 0;
+ remaining->tv_nsec = 0;
+ }
+ return 0;
+}
+
+void thrd_yield(void)
+{
+#if defined(_TTHREAD_WIN32_)
+ Sleep(0);
+#else
+ sched_yield();
+#endif
+}
+
+int tss_create(tss_t *key, tss_dtor_t dtor)
+{
+#if defined(_TTHREAD_WIN32_)
+ /* FIXME: The destructor function is not supported yet... */
+ if (dtor != NULL)
+ {
+ return thrd_error;
+ }
+ *key = TlsAlloc();
+ if (*key == TLS_OUT_OF_INDEXES)
+ {
+ return thrd_error;
+ }
+#else
+ if (pthread_key_create(key, dtor) != 0)
+ {
+ return thrd_error;
+ }
+#endif
+ return thrd_success;
+}
+
+void tss_delete(tss_t key)
+{
+#if defined(_TTHREAD_WIN32_)
+ TlsFree(key);
+#else
+ pthread_key_delete(key);
+#endif
+}
+
+void *tss_get(tss_t key)
+{
+#if defined(_TTHREAD_WIN32_)
+ return TlsGetValue(key);
+#else
+ return pthread_getspecific(key);
+#endif
+}
+
+int tss_set(tss_t key, void *val)
+{
+#if defined(_TTHREAD_WIN32_)
+ if (TlsSetValue(key, val) == 0)
+ {
+ return thrd_error;
+ }
+#else
+ if (pthread_setspecific(key, val) != 0)
+ {
+ return thrd_error;
+ }
+#endif
+ return thrd_success;
+}
+
+#if defined(_TTHREAD_EMULATE_CLOCK_GETTIME_)
+int _tthread_clock_gettime(clockid_t clk_id, struct timespec *ts)
+{
+#if defined(_TTHREAD_WIN32_)
+ struct _timeb tb;
+ _ftime(&tb);
+ ts->tv_sec = (time_t)tb.time;
+ ts->tv_nsec = 1000000L * (long)tb.millitm;
+#else
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ ts->tv_sec = (time_t)tv.tv_sec;
+ ts->tv_nsec = 1000L * (long)tv.tv_usec;
+#endif
+ return 0;
+}
+#endif // _TTHREAD_EMULATE_CLOCK_GETTIME_
+
--- /dev/null
+/* -*- mode: c; tab-width: 2; indent-tabs-mode: nil; -*-
+Copyright (c) 2012 Marcus Geelnard
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+
+ 3. This notice may not be removed or altered from any source
+ distribution.
+*/
+
+#ifndef _TINYCTHREAD_H_
+#define _TINYCTHREAD_H_
+
+/**
+* @file
+* @mainpage TinyCThread API Reference
+*
+* @section intro_sec Introduction
+* TinyCThread is a minimal, portable implementation of basic threading
+* classes for C.
+*
+* They closely mimic the functionality and naming of the C11 standard, and
+* should be easily replaceable with the corresponding standard variants.
+*
+* @section port_sec Portability
+* The Win32 variant uses the native Win32 API for implementing the thread
+* classes, while for other systems, the POSIX threads API (pthread) is used.
+*
+* @section misc_sec Miscellaneous
+* The following special keywords are available: #_Thread_local.
+*
+* For more detailed information, browse the different sections of this
+* documentation. A good place to start is:
+* tinycthread.h.
+*/
+
+/* Which platform are we on? */
+#if !defined(_TTHREAD_PLATFORM_DEFINED_)
+ #if defined(_WIN32) || defined(__WIN32__) || defined(__WINDOWS__)
+ #define _TTHREAD_WIN32_
+ #else
+ #define _TTHREAD_POSIX_
+ #endif
+ #define _TTHREAD_PLATFORM_DEFINED_
+#endif
+
+/* Activate some POSIX functionality (e.g. clock_gettime and recursive mutexes) */
+#if defined(_TTHREAD_POSIX_)
+ #undef _FEATURES_H
+ #if !defined(_GNU_SOURCE)
+ #define _GNU_SOURCE
+ #endif
+ #if !defined(_POSIX_C_SOURCE) || ((_POSIX_C_SOURCE - 0) < 199309L)
+ #undef _POSIX_C_SOURCE
+ #define _POSIX_C_SOURCE 199309L
+ #endif
+ #if !defined(_XOPEN_SOURCE) || ((_XOPEN_SOURCE - 0) < 500)
+ #undef _XOPEN_SOURCE
+ #define _XOPEN_SOURCE 500
+ #endif
+#endif
+
+/* Generic includes */
+#include <time.h>
+
+/* Platform specific includes */
+#if defined(_TTHREAD_POSIX_)
+ #include <sys/time.h>
+ #include <pthread.h>
+#elif defined(_TTHREAD_WIN32_)
+ #ifndef WIN32_LEAN_AND_MEAN
+ #define WIN32_LEAN_AND_MEAN
+ #define __UNDEF_LEAN_AND_MEAN
+ #endif
+ #include <windows.h>
+ #ifdef __UNDEF_LEAN_AND_MEAN
+ #undef WIN32_LEAN_AND_MEAN
+ #undef __UNDEF_LEAN_AND_MEAN
+ #endif
+#endif
+
+/* Workaround for missing TIME_UTC: If time.h doesn't provide TIME_UTC,
+ it's quite likely that libc does not support it either. Hence, fall back to
+ the only other supported time specifier: CLOCK_REALTIME (and if that fails,
+ we're probably emulating clock_gettime anyway, so anything goes). */
+#ifndef TIME_UTC
+ #ifdef CLOCK_REALTIME
+ #define TIME_UTC CLOCK_REALTIME
+ #else
+ #define TIME_UTC 0
+ #endif
+#endif
+
+/* Workaround for missing clock_gettime (most Windows compilers, afaik) */
+#if defined(_TTHREAD_WIN32_) || defined(__APPLE_CC__)
+#define _TTHREAD_EMULATE_CLOCK_GETTIME_
+/* Emulate struct timespec */
+#if defined(_TTHREAD_WIN32_)
+struct _ttherad_timespec {
+ time_t tv_sec;
+ long tv_nsec;
+};
+#define timespec _ttherad_timespec
+#endif
+
+/* Emulate clockid_t */
+typedef int _tthread_clockid_t;
+#define clockid_t _tthread_clockid_t
+
+/* Emulate clock_gettime */
+int _tthread_clock_gettime(clockid_t clk_id, struct timespec *ts);
+#define clock_gettime _tthread_clock_gettime
+#ifndef CLOCK_REALTIME
+ #define CLOCK_REALTIME 0
+#endif
+#endif
+
+
+/** TinyCThread version (major number). */
+#define TINYCTHREAD_VERSION_MAJOR 1
+/** TinyCThread version (minor number). */
+#define TINYCTHREAD_VERSION_MINOR 1
+/** TinyCThread version (full version). */
+#define TINYCTHREAD_VERSION (TINYCTHREAD_VERSION_MAJOR * 100 + TINYCTHREAD_VERSION_MINOR)
+
+/**
+* @def _Thread_local
+* Thread local storage keyword.
+* A variable that is declared with the @c _Thread_local keyword makes the
+* value of the variable local to each thread (known as thread-local storage,
+* or TLS). Example usage:
+* @code
+* // This variable is local to each thread.
+* _Thread_local int variable;
+* @endcode
+* @note The @c _Thread_local keyword is a macro that maps to the corresponding
+* compiler directive (e.g. @c __declspec(thread)).
+* @note This directive is currently not supported on Mac OS X (it will give
+* a compiler error), since compile-time TLS is not supported in the Mac OS X
+* executable format. Also, some older versions of MinGW (before GCC 4.x) do
+* not support this directive.
+* @hideinitializer
+*/
+
+/* FIXME: Check for a PROPER value of __STDC_VERSION__ to know if we have C11 */
+#if !(defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201102L)) && !defined(_Thread_local)
+ #if defined(__GNUC__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_CC) || defined(__IBMCPP__)
+ #define _Thread_local __thread
+ #else
+ #define _Thread_local __declspec(thread)
+ #endif
+#endif
+
+/* Macros */
+#define TSS_DTOR_ITERATIONS 0
+
+/* Function return values */
+#define thrd_error 0 /**< The requested operation failed */
+#define thrd_success 1 /**< The requested operation succeeded */
+#define thrd_timeout 2 /**< The time specified in the call was reached without acquiring the requested resource */
+#define thrd_busy 3 /**< The requested operation failed because a tesource requested by a test and return function is already in use */
+#define thrd_nomem 4 /**< The requested operation failed because it was unable to allocate memory */
+
+/* Mutex types */
+#define mtx_plain 1
+#define mtx_timed 2
+#define mtx_try 4
+#define mtx_recursive 8
+
+/* Mutex */
+#if defined(_TTHREAD_WIN32_)
+typedef struct {
+ CRITICAL_SECTION mHandle; /* Critical section handle */
+ int mAlreadyLocked; /* TRUE if the mutex is already locked */
+ int mRecursive; /* TRUE if the mutex is recursive */
+} mtx_t;
+#else
+typedef pthread_mutex_t mtx_t;
+#endif
+
+/** Create a mutex object.
+* @param mtx A mutex object.
+* @param type Bit-mask that must have one of the following six values:
+* @li @c mtx_plain for a simple non-recursive mutex
+* @li @c mtx_timed for a non-recursive mutex that supports timeout
+* @li @c mtx_try for a non-recursive mutex that supports test and return
+* @li @c mtx_plain | @c mtx_recursive (same as @c mtx_plain, but recursive)
+* @li @c mtx_timed | @c mtx_recursive (same as @c mtx_timed, but recursive)
+* @li @c mtx_try | @c mtx_recursive (same as @c mtx_try, but recursive)
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int mtx_init(mtx_t *mtx, int type);
+
+/** Release any resources used by the given mutex.
+* @param mtx A mutex object.
+*/
+void mtx_destroy(mtx_t *mtx);
+
+/** Lock the given mutex.
+* Blocks until the given mutex can be locked. If the mutex is non-recursive, and
+* the calling thread already has a lock on the mutex, this call will block
+* forever.
+* @param mtx A mutex object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int mtx_lock(mtx_t *mtx);
+
+/** NOT YET IMPLEMENTED.
+*/
+int mtx_timedlock(mtx_t *mtx, const struct timespec *ts);
+
+/** Try to lock the given mutex.
+* The specified mutex shall support either test and return or timeout. If the
+* mutex is already locked, the function returns without blocking.
+* @param mtx A mutex object.
+* @return @ref thrd_success on success, or @ref thrd_busy if the resource
+* requested is already in use, or @ref thrd_error if the request could not be
+* honored.
+*/
+int mtx_trylock(mtx_t *mtx);
+
+/** Unlock the given mutex.
+* @param mtx A mutex object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int mtx_unlock(mtx_t *mtx);
+
+/* Condition variable */
+#if defined(_TTHREAD_WIN32_)
+typedef struct {
+ HANDLE mEvents[2]; /* Signal and broadcast event HANDLEs. */
+ unsigned int mWaitersCount; /* Count of the number of waiters. */
+ CRITICAL_SECTION mWaitersCountLock; /* Serialize access to mWaitersCount. */
+} cnd_t;
+#else
+typedef pthread_cond_t cnd_t;
+#endif
+
+/** Create a condition variable object.
+* @param cond A condition variable object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int cnd_init(cnd_t *cond);
+
+/** Release any resources used by the given condition variable.
+* @param cond A condition variable object.
+*/
+void cnd_destroy(cnd_t *cond);
+
+/** Signal a condition variable.
+* Unblocks one of the threads that are blocked on the given condition variable
+* at the time of the call. If no threads are blocked on the condition variable
+* at the time of the call, the function does nothing and return success.
+* @param cond A condition variable object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int cnd_signal(cnd_t *cond);
+
+/** Broadcast a condition variable.
+* Unblocks all of the threads that are blocked on the given condition variable
+* at the time of the call. If no threads are blocked on the condition variable
+* at the time of the call, the function does nothing and return success.
+* @param cond A condition variable object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int cnd_broadcast(cnd_t *cond);
+
+/** Wait for a condition variable to become signaled.
+* The function atomically unlocks the given mutex and endeavors to block until
+* the given condition variable is signaled by a call to cnd_signal or to
+* cnd_broadcast. When the calling thread becomes unblocked it locks the mutex
+* before it returns.
+* @param cond A condition variable object.
+* @param mtx A mutex object.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int cnd_wait(cnd_t *cond, mtx_t *mtx);
+
+/** Wait for a condition variable to become signaled.
+* The function atomically unlocks the given mutex and endeavors to block until
+* the given condition variable is signaled by a call to cnd_signal or to
+* cnd_broadcast, or until after the specified time. When the calling thread
+* becomes unblocked it locks the mutex before it returns.
+* @param cond A condition variable object.
+* @param mtx A mutex object.
+* @param xt A point in time at which the request will time out (absolute time).
+* @return @ref thrd_success upon success, or @ref thrd_timeout if the time
+* specified in the call was reached without acquiring the requested resource, or
+* @ref thrd_error if the request could not be honored.
+*/
+int cnd_timedwait(cnd_t *cond, mtx_t *mtx, const struct timespec *ts);
+
+/* Thread */
+#if defined(_TTHREAD_WIN32_)
+typedef HANDLE thrd_t;
+#else
+typedef pthread_t thrd_t;
+#endif
+
+/** Thread start function.
+* Any thread that is started with the @ref thrd_create() function must be
+* started through a function of this type.
+* @param arg The thread argument (the @c arg argument of the corresponding
+* @ref thrd_create() call).
+* @return The thread return value, which can be obtained by another thread
+* by using the @ref thrd_join() function.
+*/
+typedef int (*thrd_start_t)(void *arg);
+
+/** Create a new thread.
+* @param thr Identifier of the newly created thread.
+* @param func A function pointer to the function that will be executed in
+* the new thread.
+* @param arg An argument to the thread function.
+* @return @ref thrd_success on success, or @ref thrd_nomem if no memory could
+* be allocated for the thread requested, or @ref thrd_error if the request
+* could not be honored.
+* @note A thread’s identifier may be reused for a different thread once the
+* original thread has exited and either been detached or joined to another
+* thread.
+*/
+int thrd_create(thrd_t *thr, thrd_start_t func, void *arg);
+
+/** Identify the calling thread.
+* @return The identifier of the calling thread.
+*/
+thrd_t thrd_current(void);
+
+/** NOT YET IMPLEMENTED.
+*/
+int thrd_detach(thrd_t thr);
+
+/** Compare two thread identifiers.
+* The function determines if two thread identifiers refer to the same thread.
+* @return Zero if the two thread identifiers refer to different threads.
+* Otherwise a nonzero value is returned.
+*/
+int thrd_equal(thrd_t thr0, thrd_t thr1);
+
+/** Terminate execution of the calling thread.
+* @param res Result code of the calling thread.
+*/
+void thrd_exit(int res);
+
+/** Wait for a thread to terminate.
+* The function joins the given thread with the current thread by blocking
+* until the other thread has terminated.
+* @param thr The thread to join with.
+* @param res If this pointer is not NULL, the function will store the result
+* code of the given thread in the integer pointed to by @c res.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int thrd_join(thrd_t thr, int *res);
+
+/** Put the calling thread to sleep.
+* Suspend execution of the calling thread.
+* @param time_point A point in time at which the thread will resume (absolute time).
+* @param remaining If non-NULL, this parameter will hold the remaining time until
+* time_point upon return. This will typically be zero, but if
+* the thread was woken up by a signal that is not ignored before
+* time_point was reached @c remaining will hold a positive
+* time.
+* @return 0 (zero) on successful sleep, or -1 if an interrupt occurred.
+*/
+int thrd_sleep(const struct timespec *time_point, struct timespec *remaining);
+
+/** Yield execution to another thread.
+* Permit other threads to run, even if the current thread would ordinarily
+* continue to run.
+*/
+void thrd_yield(void);
+
+/* Thread local storage */
+#if defined(_TTHREAD_WIN32_)
+typedef DWORD tss_t;
+#else
+typedef pthread_key_t tss_t;
+#endif
+
+/** Destructor function for a thread-specific storage.
+* @param val The value of the destructed thread-specific storage.
+*/
+typedef void (*tss_dtor_t)(void *val);
+
+/** Create a thread-specific storage.
+* @param key The unique key identifier that will be set if the function is
+* successful.
+* @param dtor Destructor function. This can be NULL.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+* @note The destructor function is not supported under Windows. If @c dtor is
+* not NULL when calling this function under Windows, the function will fail
+* and return @ref thrd_error.
+*/
+int tss_create(tss_t *key, tss_dtor_t dtor);
+
+/** Delete a thread-specific storage.
+* The function releases any resources used by the given thread-specific
+* storage.
+* @param key The key that shall be deleted.
+*/
+void tss_delete(tss_t key);
+
+/** Get the value for a thread-specific storage.
+* @param key The thread-specific storage identifier.
+* @return The value for the current thread held in the given thread-specific
+* storage.
+*/
+void *tss_get(tss_t key);
+
+/** Set the value for a thread-specific storage.
+* @param key The thread-specific storage identifier.
+* @param val The value of the thread-specific storage to set for the current
+* thread.
+* @return @ref thrd_success on success, or @ref thrd_error if the request could
+* not be honored.
+*/
+int tss_set(tss_t key, void *val);
+
+
+#endif /* _TINYTHREAD_H_ */
+
--- /dev/null
+#include "test.h"
+#include "tinycthread.h"
+
+#define THREAD_COUNT 2
+
+
+static int finishedThreadCount = 0;
+static mtx_t mutex;
+
+void drawRandomRect (VkvgContext ctx, float s) {
+ float w = (float)test_width;
+ float h = (float)test_height;
+ randomize_color(ctx);
+
+ float x = truncf(w*rndf());
+ float y = truncf(h*rndf());
+
+ vkvg_rectangle(ctx, x, y, s, s);
+}
+int drawRectsThread () {
+ VkvgSurface s = vkvg_surface_create(device, test_width, test_height);
+ VkvgContext ctx = vkvg_create(s);
+ for (uint32_t i=0; i<test_size; i++) {
+ drawRandomRect(ctx, 14.0f);
+ vkvg_fill (ctx);
+ }
+ vkvg_destroy(ctx);
+
+ mtx_lock(&mutex);
+
+ finishedThreadCount++;
+
+ ctx = vkvg_create(surf);
+ vkvg_set_source_surface (ctx, s, 0, 0);
+ vkvg_paint(ctx);
+ vkvg_destroy(ctx);
+
+ mtx_unlock(&mutex);
+
+ vkvg_surface_destroy(s);
+ return 0;
+}
+void fixedSizeRects(){
+ thrd_t threads[THREAD_COUNT];
+ finishedThreadCount = 0;
+ mtx_init (&mutex,mtx_plain);
+ for (uint32_t i=0; i<THREAD_COUNT; i++) {
+ thrd_create (&threads[i], drawRectsThread, NULL);
+ }
+
+ const struct timespec ts = {1,0};
+ while (finishedThreadCount < THREAD_COUNT)
+ thrd_sleep(&ts, NULL);
+
+ mtx_destroy(&mutex);
+}
+
+int main(int argc, char *argv[]) {
+ vkvg_log_level = VKVG_LOG_THREADING;
+
+ PERFORM_TEST (fixedSizeRects, argc, argv);
+ return 0;
+}
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