1 files changed, 0 insertions, 56 deletions
diff --git a/src/thread/thread_os2.cpp b/src/thread/thread_os2.cpp
index 976283f23..72ee080d6 100644
--- a/src/thread/thread_os2.cpp
+++ b/src/thread/thread_os2.cpp
@@ -89,59 +89,3 @@ private:
 	if (thread != NULL) *thread = to;
 	return true;
 }
-
-/**
- * OS/2 version of ThreadMutex.
- */
-class ThreadMutex_OS2 : public ThreadMutex {
-private:
-	HMTX mutex; ///< The mutex.
-	HEV event;  ///< Event for waiting.
-	uint recursive_count;     ///< Recursive lock count.
-
-public:
-	ThreadMutex_OS2() : recursive_count(0)
-	{
-		DosCreateMutexSem(NULL, &mutex, 0, FALSE);
-		DosCreateEventSem(NULL, &event, 0, FALSE);
-	}
-
-	~ThreadMutex_OS2() override
-	{
-		DosCloseMutexSem(mutex);
-		DosCloseEventSem(event);
-	}
-
-	void BeginCritical(bool allow_recursive = false) override
-	{
-		/* os2 mutex is recursive by itself */
-		DosRequestMutexSem(mutex, (unsigned long) SEM_INDEFINITE_WAIT);
-		this->recursive_count++;
-		if (!allow_recursive && this->recursive_count != 1) NOT_REACHED();
-	}
-
-	void EndCritical(bool allow_recursive = false) override
-	{
-		if (!allow_recursive && this->recursive_count != 1) NOT_REACHED();
-		this->recursive_count--;
-		DosReleaseMutexSem(mutex);
-	}
-
-	void WaitForSignal() override
-	{
-		assert(this->recursive_count == 1); // Do we need to call Begin/EndCritical multiple times otherwise?
-		this->EndCritical();
-		DosWaitEventSem(event, SEM_INDEFINITE_WAIT);
-		this->BeginCritical();
-	}
-
-	void SendSignal() override
-	{
-		DosPostEventSem(event);
-	}
-};
-
-/* static */ ThreadMutex *ThreadMutex::New()
-{
-	return new ThreadMutex_OS2();
-}