2 Simple DirectMedia Layer
3 Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software.
9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions:
13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution.
21 #include "../../SDL_internal.h"
24 #include "SDL_thread.h"
25 #include "SDL_systhread_c.h"
29 #include <system_error>
31 #include "SDL_sysmutex_c.h"
40 /* Allocate and initialize the mutex */
42 SDL_mutex * mutex = new SDL_mutex;
44 } catch (std::system_error & ex) {
45 SDL_SetError("unable to create a C++ mutex: code=%d; %s", ex.code(), ex.what());
47 } catch (std::bad_alloc &) {
56 SDL_DestroyMutex(SDL_mutex * mutex)
63 /* Lock the semaphore */
66 SDL_mutexP(SDL_mutex * mutex)
69 SDL_SetError("Passed a NULL mutex");
74 mutex->cpp_mutex.lock();
76 } catch (std::system_error & ex) {
77 SDL_SetError("unable to lock a C++ mutex: code=%d; %s", ex.code(), ex.what());
82 /* TryLock the mutex */
84 SDL_TryLockMutex(SDL_mutex * mutex)
88 return SDL_SetError("Passed a NULL mutex");
91 if (mutex->cpp_mutex.try_lock() == false) {
92 retval = SDL_MUTEX_TIMEDOUT;
97 /* Unlock the mutex */
100 SDL_mutexV(SDL_mutex * mutex)
103 SDL_SetError("Passed a NULL mutex");
107 mutex->cpp_mutex.unlock();
111 /* vi: set ts=4 sw=4 expandtab: */