First Commit

externals/openal-soft/common/threads.h

@@ -0,0 +1,48 @@
+#ifndef AL_THREADS_H
+#define AL_THREADS_H
+
+#if defined(__GNUC__) && defined(__i386__)
+/* force_align_arg_pointer is required for proper function arguments aligning
+ * when SSE code is used. Some systems (Windows, QNX) do not guarantee our
+ * thread functions will be properly aligned on the stack, even though GCC may
+ * generate code with the assumption that it is. */
+#define FORCE_ALIGN __attribute__((force_align_arg_pointer))
+#else
+#define FORCE_ALIGN
+#endif
+
+#if defined(__APPLE__)
+#include <dispatch/dispatch.h>
+#elif !defined(_WIN32)
+#include <semaphore.h>
+#endif
+
+void althrd_setname(const char *name);
+
+namespace al {
+
+class semaphore {
+#ifdef _WIN32
+    using native_type = void*;
+#elif defined(__APPLE__)
+    using native_type = dispatch_semaphore_t;
+#else
+    using native_type = sem_t;
+#endif
+    native_type mSem;
+
+public:
+    semaphore(unsigned int initial=0);
+    semaphore(const semaphore&) = delete;
+    ~semaphore();
+
+    semaphore& operator=(const semaphore&) = delete;
+
+    void post();
+    void wait() noexcept;
+    bool try_wait() noexcept;
+};
+
+} // namespace al
+
+#endif /* AL_THREADS_H */