From 30f41c02aec763d32e62351452da9ef582bc3472 Mon Sep 17 00:00:00 2001 From: 3gg <3gg@shellblade.net> Date: Fri, 6 Mar 2026 13:30:59 -0800 Subject: Move contrib libraries to contrib repo --- .../SDL-3.2.8/src/thread/pthread/SDL_sysmutex.c | 154 --------------------- 1 file changed, 154 deletions(-) delete mode 100644 contrib/SDL-3.2.8/src/thread/pthread/SDL_sysmutex.c (limited to 'contrib/SDL-3.2.8/src/thread/pthread/SDL_sysmutex.c') diff --git a/contrib/SDL-3.2.8/src/thread/pthread/SDL_sysmutex.c b/contrib/SDL-3.2.8/src/thread/pthread/SDL_sysmutex.c deleted file mode 100644 index 7bba286..0000000 --- a/contrib/SDL-3.2.8/src/thread/pthread/SDL_sysmutex.c +++ /dev/null @@ -1,154 +0,0 @@ -/* - Simple DirectMedia Layer - Copyright (C) 1997-2025 Sam Lantinga - - 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. -*/ -#include "SDL_internal.h" - -#include -#include - -#include "SDL_sysmutex_c.h" - -SDL_Mutex *SDL_CreateMutex(void) -{ - SDL_Mutex *mutex; - pthread_mutexattr_t attr; - - // Allocate the structure - mutex = (SDL_Mutex *)SDL_calloc(1, sizeof(*mutex)); - if (mutex) { - pthread_mutexattr_init(&attr); -#ifdef SDL_THREAD_PTHREAD_RECURSIVE_MUTEX - pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE); -#elif defined(SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP) - pthread_mutexattr_setkind_np(&attr, PTHREAD_MUTEX_RECURSIVE_NP); -#else - // No extra attributes necessary -#endif - if (pthread_mutex_init(&mutex->id, &attr) != 0) { - SDL_SetError("pthread_mutex_init() failed"); - SDL_free(mutex); - mutex = NULL; - } - } - return mutex; -} - -void SDL_DestroyMutex(SDL_Mutex *mutex) -{ - if (mutex) { - pthread_mutex_destroy(&mutex->id); - SDL_free(mutex); - } -} - -void SDL_LockMutex(SDL_Mutex *mutex) SDL_NO_THREAD_SAFETY_ANALYSIS // clang doesn't know about NULL mutexes -{ - if (mutex) { -#ifdef FAKE_RECURSIVE_MUTEX - pthread_t this_thread = pthread_self(); - if (mutex->owner == this_thread) { - ++mutex->recursive; - } else { - /* The order of operations is important. - We set the locking thread id after we obtain the lock - so unlocks from other threads will fail. - */ - const int rc = pthread_mutex_lock(&mutex->id); - SDL_assert(rc == 0); // assume we're in a lot of trouble if this assert fails. - mutex->owner = this_thread; - mutex->recursive = 0; - } -#else - const int rc = pthread_mutex_lock(&mutex->id); - SDL_assert(rc == 0); // assume we're in a lot of trouble if this assert fails. -#endif - } -} - -bool SDL_TryLockMutex(SDL_Mutex *mutex) -{ - bool result = true; - - if (mutex) { -#ifdef FAKE_RECURSIVE_MUTEX - pthread_t this_thread = pthread_self(); - if (mutex->owner == this_thread) { - ++mutex->recursive; - } else { - /* The order of operations is important. - We set the locking thread id after we obtain the lock - so unlocks from other threads will fail. - */ - const int rc = pthread_mutex_trylock(&mutex->id); - if (rc == 0) { - mutex->owner = this_thread; - mutex->recursive = 0; - } else if (rc == EBUSY) { - result = false; - } else { - SDL_assert(!"Error trying to lock mutex"); // assume we're in a lot of trouble if this assert fails. - result = false; - } - } -#else - const int rc = pthread_mutex_trylock(&mutex->id); - if (rc != 0) { - if (rc == EBUSY) { - result = false; - } else { - SDL_assert(!"Error trying to lock mutex"); // assume we're in a lot of trouble if this assert fails. - result = false; - } - } -#endif - } - - return result; -} - -void SDL_UnlockMutex(SDL_Mutex *mutex) SDL_NO_THREAD_SAFETY_ANALYSIS // clang doesn't know about NULL mutexes -{ - if (mutex) { -#ifdef FAKE_RECURSIVE_MUTEX - // We can only unlock the mutex if we own it - if (pthread_self() == mutex->owner) { - if (mutex->recursive) { - --mutex->recursive; - } else { - /* The order of operations is important. - First reset the owner so another thread doesn't lock - the mutex and set the ownership before we reset it, - then release the lock semaphore. - */ - mutex->owner = 0; - pthread_mutex_unlock(&mutex->id); - } - } else { - SDL_SetError("mutex not owned by this thread"); - return; - } - -#else - const int rc = pthread_mutex_unlock(&mutex->id); - SDL_assert(rc == 0); // assume we're in a lot of trouble if this assert fails. -#endif // FAKE_RECURSIVE_MUTEX - } -} - -- cgit v1.2.3