added everything

engine/platformX86UNIX/x86UNIXSemaphore.cc

@@ -0,0 +1,50 @@
+//-----------------------------------------------------------------------------
+// Torque Game Engine 
+// Copyright (C) GarageGames.com, Inc.
+//-----------------------------------------------------------------------------
+
+#include "platformX86UNIX/platformX86UNIX.h"
+#include "platform/platformSemaphore.h"
+// Instead of that mess that was here before, lets use the SDL lib to deal
+// with the semaphores.
+
+#include <SDL/SDL.h>
+#include <SDL/SDL_thread.h>
+
+void *Semaphore::createSemaphore(U32 initialCount)
+{
+  SDL_sem *semaphore;
+  semaphore = SDL_CreateSemaphore(initialCount);
+  AssertFatal(semaphore, "Semaphore::createSemaphore - Failed.");
+  return semaphore;
+}
+
+void Semaphore::destroySemaphore(void *semaphore)
+{
+  AssertFatal(semaphore, "Semaphore::destroySemaphore - Invalid semaphore");
+  SDL_DestroySemaphore((SDL_sem *)semaphore);
+}
+
+bool Semaphore::acquireSemaphore(void *semaphore, bool block)
+{
+  AssertFatal(semaphore, "Semaphore::acquireSemaphore - Invalid semaphore");
+  if (block)
+    {
+      if (SDL_SemWait((SDL_sem *)semaphore) < 0)
+	AssertFatal(false, "Semaphore::acquieSemaphore - Wait failed.");
+      return (true);
+    }
+  else
+    {
+      int res = SDL_SemTryWait((SDL_sem *)semaphore);
+      if (res < 0)
+	AssertFatal(false, "Semaphore::acquireSemaphore - Wait failed.");
+      return (res == 0);
+    }
+}
+
+void Semaphore::releaseSemaphore(void *semaphore)
+{
+  AssertFatal(semaphore, "Semaphore::releaseSemaphore - Invalid semaphore");
+  SDL_SemPost((SDL_sem *)semaphore);
+}