1 files changed, 106 insertions, 0 deletions
diff --git a/src/base/tl/threading.h b/src/base/tl/threading.h
new file mode 100644
index 00000000..dbf788cd
--- /dev/null
+++ b/src/base/tl/threading.h
@@ -0,0 +1,106 @@
+
+#pragma once
+
+#include "../system.h"
+
+/*
+	atomic_inc - should return the value after increment
+	atomic_dec - should return the value after decrement
+	atomic_compswap - should return the value before the eventual swap
+	
+*/
+
+#if defined(__GNUC__)
+
+	inline unsigned atomic_inc(volatile unsigned *pValue)
+	{
+		return __sync_fetch_and_add(pValue, 1);
+	}
+
+	inline unsigned atomic_dec(volatile unsigned *pValue)
+	{
+		return __sync_fetch_and_add(pValue, -1);
+	}
+
+	inline unsigned atomic_compswap(volatile unsigned *pValue, unsigned comperand, unsigned value)
+	{
+		return __sync_val_compare_and_swap(pValue, comperand, value);
+	}
+
+	inline void sync_barrier()
+	{
+		__sync_synchronize();
+	}
+
+#elif defined(_MSC_VER)
+	#include <intrin.h>
+
+	inline unsigned atomic_inc(volatile unsigned *pValue)
+	{
+		return _InterlockedIncrement((volatile long *)pValue);
+	}
+	
+	inline unsigned atomic_dec(volatile unsigned *pValue)
+	{
+		return _InterlockedDecrement((volatile long *)pValue);
+	}
+
+	inline unsigned atomic_compswap(volatile unsigned *pValue, unsigned comperand, unsigned value)
+	{
+		return _InterlockedCompareExchange((volatile long *)pValue, (long)value, (long)comperand);
+	}
+
+	inline void sync_barrier()
+	{
+		_ReadWriteBarrier();
+	}
+#else
+	#error missing atomic implementation for this compiler
+#endif
+
+class semaphore
+{
+	SEMAPHORE sem;
+public:
+	semaphore() { semaphore_init(&sem); }
+	~semaphore() { semaphore_destroy(&sem); }
+	void wait() { semaphore_wait(&sem); }
+	void signal() { semaphore_signal(&sem); }
+};
+
+class lock
+{
+	friend class scope_lock;
+
+	LOCK var;
+
+	void take() { lock_wait(var); }
+	void release() { lock_release(var); }
+
+public:
+	lock()
+	{
+		var = lock_create();
+	}
+
+	~lock()
+	{
+		lock_destroy(var);
+	}
+};
+
+class scope_lock
+{
+	lock *var;
+public:
+	scope_lock(lock *l)
+	{
+		var = l;
+		var->take();
+	}
+
+	~scope_lock()
+	{
+		var->release();
+	}
+};