From 3fc56dbe4ad7e9deaeaef8c209a68e1de986f6fa Mon Sep 17 00:00:00 2001
From: "SND\\weimingzhi_cp"
 <SND\weimingzhi_cp@e17a0e51-4ae3-4d35-97c3-1a29b211df97>
Date: Sat, 19 Feb 2011 02:25:15 +0000
Subject: -Reverted some changes to make the code build again on Tiger.
 -Removed x86_64 from Deployment configuration. -macosx: Use SDL for sound
 plugin, removed Carbon backend. -(MaddTheSane)Fixed memory leaks (Patch
 #8427).

git-svn-id: https://pcsxr.svn.codeplex.com/svn/pcsxr@63548 e17a0e51-4ae3-4d35-97c3-1a29b211df97
---
 .../Common/SDL/src/thread/pthread/SDL_sysmutex.c   | 161 +++++++++++++++++++++
 1 file changed, 161 insertions(+)
 create mode 100644 macosx/plugins/Common/SDL/src/thread/pthread/SDL_sysmutex.c

(limited to 'macosx/plugins/Common/SDL/src/thread/pthread/SDL_sysmutex.c')

diff --git a/macosx/plugins/Common/SDL/src/thread/pthread/SDL_sysmutex.c b/macosx/plugins/Common/SDL/src/thread/pthread/SDL_sysmutex.c
new file mode 100644
index 00000000..701c7f60
--- /dev/null
+++ b/macosx/plugins/Common/SDL/src/thread/pthread/SDL_sysmutex.c
@@ -0,0 +1,161 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2010 Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+#define _GNU_SOURCE
+#include <pthread.h>
+
+#include "SDL_thread.h"
+
+#if !SDL_THREAD_PTHREAD_RECURSIVE_MUTEX && \
+    !SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP
+#define FAKE_RECURSIVE_MUTEX
+#endif
+
+struct SDL_mutex
+{
+    pthread_mutex_t id;
+#ifdef FAKE_RECURSIVE_MUTEX
+    int recursive;
+    pthread_t owner;
+#endif
+};
+
+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);
+#if SDL_THREAD_PTHREAD_RECURSIVE_MUTEX
+        pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+#elif 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;
+        }
+    } else {
+        SDL_OutOfMemory();
+    }
+    return (mutex);
+}
+
+void
+SDL_DestroyMutex(SDL_mutex * mutex)
+{
+    if (mutex) {
+        pthread_mutex_destroy(&mutex->id);
+        SDL_free(mutex);
+    }
+}
+
+/* Lock the mutex */
+int
+SDL_mutexP(SDL_mutex * mutex)
+{
+    int retval;
+#ifdef FAKE_RECURSIVE_MUTEX
+    pthread_t this_thread;
+#endif
+
+    if (mutex == NULL) {
+        SDL_SetError("Passed a NULL mutex");
+        return -1;
+    }
+
+    retval = 0;
+#ifdef FAKE_RECURSIVE_MUTEX
+    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.
+         */
+        if (pthread_mutex_lock(&mutex->id) == 0) {
+            mutex->owner = this_thread;
+            mutex->recursive = 0;
+        } else {
+            SDL_SetError("pthread_mutex_lock() failed");
+            retval = -1;
+        }
+    }
+#else
+    if (pthread_mutex_lock(&mutex->id) < 0) {
+        SDL_SetError("pthread_mutex_lock() failed");
+        retval = -1;
+    }
+#endif
+    return retval;
+}
+
+int
+SDL_mutexV(SDL_mutex * mutex)
+{
+    int retval;
+
+    if (mutex == NULL) {
+        SDL_SetError("Passed a NULL mutex");
+        return -1;
+    }
+
+    retval = 0;
+#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");
+        retval = -1;
+    }
+
+#else
+    if (pthread_mutex_unlock(&mutex->id) < 0) {
+        SDL_SetError("pthread_mutex_unlock() failed");
+        retval = -1;
+    }
+#endif /* FAKE_RECURSIVE_MUTEX */
+
+    return retval;
+}
+
+/* vi: set ts=4 sw=4 expandtab: */
-- 
cgit v1.2.3