Clean up and fix semaphores and threading

src/base/system.c

@@ -526,7 +526,9 @@ void *thread_init(void (*threadfunc)(void *), void *u)
 void thread_wait(void *thread)
 {
 #if defined(CONF_FAMILY_UNIX)
-	pthread_join((pthread_t)thread, NULL);
+	int result = pthread_join((pthread_t)thread, NULL);
+	if(result != 0)
+		dbg_msg("thread", "!! %d", result);
 #elif defined(CONF_FAMILY_WINDOWS)
 	WaitForSingleObject((HANDLE)thread, INFINITE);
 #else
@@ -534,16 +536,6 @@ void thread_wait(void *thread)
 #endif
 }
 
-void thread_destroy(void *thread)
-{
-#if defined(CONF_FAMILY_UNIX)
-	void *r = 0;
-	pthread_join((pthread_t)thread, &r);
-#else
-	/*#error not implemented*/
-#endif
-}
-
 void thread_yield()
 {
 #if defined(CONF_FAMILY_UNIX)
@@ -647,12 +639,7 @@ void lock_unlock(LOCK lock)
 #endif
 }
 
-#if defined(CONF_FAMILY_UNIX) && !defined(CONF_PLATFORM_MACOSX)
-void sphore_init(SEMAPHORE *sem) { sem_init(sem, 0, 0); }
-void sphore_wait(SEMAPHORE *sem) { sem_wait(sem); }
-void sphore_signal(SEMAPHORE *sem) { sem_post(sem); }
-void sphore_destroy(SEMAPHORE *sem) { sem_destroy(sem); }
-#elif defined(CONF_FAMILY_WINDOWS)
+#if defined(CONF_FAMILY_WINDOWS)
 void sphore_init(SEMAPHORE *sem) { *sem = CreateSemaphore(0, 0, 10000, 0); }
 void sphore_wait(SEMAPHORE *sem) { WaitForSingleObject((HANDLE)*sem, INFINITE); }
 void sphore_signal(SEMAPHORE *sem) { ReleaseSemaphore((HANDLE)*sem, 1, NULL); }
@@ -666,9 +653,18 @@ void sphore_init(SEMAPHORE *sem)
 }
 void sphore_wait(SEMAPHORE *sem) { sem_wait(*sem); }
 void sphore_signal(SEMAPHORE *sem) { sem_post(*sem); }
-void sphore_destroy(SEMAPHORE *sem) { sem_close(*sem); }
-#else
-	#error not implemented on this platform
+void sphore_destroy(SEMAPHORE *sem)
+{
+	char aBuf[64];
+	sem_close(*sem);
+	str_format(aBuf, sizeof(aBuf), "/%d-ddphore-%p", pid(), (void *)sem);
+	sem_unlink(aBuf);
+}
+#elif defined(CONF_FAMILY_UNIX)
+void sphore_init(SEMAPHORE *sem) { sem_init(sem, 0, 0); }
+void sphore_wait(SEMAPHORE *sem) { sem_wait(sem); }
+void sphore_signal(SEMAPHORE *sem) { sem_post(sem); }
+void sphore_destroy(SEMAPHORE *sem) { sem_destroy(sem); }
 #endif
 
 static int new_tick = -1;

src/base/system.h

@@ -387,18 +387,9 @@ void *thread_init(void (*threadfunc)(void *), void *user);
 */
 void thread_wait(void *thread);
 
-/*
-	Function: thread_destroy
-		Destroys a thread.
-
-	Parameters:
-		thread - Thread to destroy.
-*/
-void thread_destroy(void *thread);
-
 /*
 	Function: thread_yeild
-		Yeild the current threads execution slice.
+		Yield the current threads execution slice.
 */
 void thread_yield();
 
@@ -425,15 +416,14 @@ void lock_unlock(LOCK lock);
 
 
 /* Group: Semaphores */
-#if defined(CONF_FAMILY_UNIX)
-	#include <semaphore.h>
-	#if defined(CONF_PLATFORM_MACOSX)
-	typedef sem_t* SEMAPHORE;
-	#else
-	typedef sem_t SEMAPHORE;
-	#endif
-#elif defined(CONF_FAMILY_WINDOWS)
+#if defined(CONF_FAMILY_WINDOWS)
 	typedef void* SEMAPHORE;
+#elif defined(CONF_PLATFORM_MACOSX)
+	#include <semaphore.h>
+	typedef sem_t* SEMAPHORE;
+#elif defined(CONF_FAMILY_UNIX)
+	#include <semaphore.h>
+	typedef sem_t SEMAPHORE;
 #else
 	#error not implemented on this platform
 #endif
@@ -1274,9 +1264,7 @@ void swap_endian(void *data, unsigned elem_size, unsigned num);
 typedef void (*DBG_LOGGER)(const char *line);
 void dbg_logger(DBG_LOGGER logger);
 
-#if !defined(CONF_PLATFORM_MACOSX)
 void dbg_enable_threaded();
-#endif
 void dbg_logger_stdout();
 void dbg_logger_debugger();
 void dbg_logger_file(const char *filename);

src/base/tl/threading.h

@@ -61,21 +61,15 @@
 	#error missing atomic implementation for this compiler
 #endif
 
-#if defined(CONF_PLATFORM_MACOSX)
-	/*
-		use semaphore provided by SDL on macosx
-	*/
-#else
-	class semaphore
-	{
-		SEMAPHORE sem;
-	public:
-		semaphore() { sphore_init(&sem); }
-		~semaphore() { sphore_destroy(&sem); }
-		void wait() { sphore_wait(&sem); }
-		void signal() { sphore_signal(&sem); }
-	};
-#endif
+class semaphore
+{
+	SEMAPHORE sem;
+public:
+	semaphore() { sphore_init(&sem); }
+	~semaphore() { sphore_destroy(&sem); }
+	void wait() { sphore_wait(&sem); }
+	void signal() { sphore_signal(&sem); }
+};
 
 class lock
 {

src/engine/client/backend_sdl.cpp

@@ -80,7 +80,6 @@ void CGraphicsBackend_Threaded::StopProcessor()
 	m_Shutdown = true;
 	m_Activity.signal();
 	thread_wait(m_pThread);
-	thread_destroy(m_pThread);
 }
 
 void CGraphicsBackend_Threaded::RunBuffer(CCommandBuffer *pBuffer)

src/engine/client/fetcher.cpp

@@ -60,7 +60,6 @@ void CFetcher::QueueAdd(CFetchTask *pTask, const char *pUrl, const char *pDest,
 	if(!m_pThHandle)
 	{
 		m_pThHandle = thread_init(&FetcherThread, this);
-		thread_detach(m_pThHandle);
 	}
 
 	if(!m_pFirst)

src/engine/shared/jobs.cpp

@@ -17,10 +17,7 @@ CJobPool::~CJobPool()
 {
 	m_Shutdown = true;
 	for(int i = 0; i < m_NumThreads; i++)
-	{
 		thread_wait(m_apThreads[i]);
-		thread_destroy(m_apThreads[i]);
-	}
 	lock_destroy(m_Lock);
 }