Added support for building glsl translator on posix platforms.
Review URL: http://codereview.appspot.com/958043
git-svn-id: https://angleproject.googlecode.com/svn/trunk@184 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/compiler/ossource_posix.cpp b/src/compiler/ossource_posix.cpp
new file mode 100644
index 0000000..c890f79
--- /dev/null
+++ b/src/compiler/ossource_posix.cpp
@@ -0,0 +1,111 @@
+//
+// Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+//
+// This file contains the posix specific functions
+//
+#include "compiler/osinclude.h"
+
+#if !defined(ANGLE_OS_POSIX)
+#error Trying to build a posix specific file in a non-posix build.
+#endif
+
+//
+// Thread cleanup
+//
+
+//
+// Wrapper for Linux call to DetachThread.
+// This is required as pthread_cleanup_push() expects the cleanup routine
+// to return void.
+//
+void DetachThreadLinux(void *)
+{
+ DetachThread();
+}
+
+//
+// Registers cleanup handler, sets cancel type and state, and excecutes
+// the thread specific cleanup handler. When OpenGL applications are run with
+// the driver code, Linux OS does the thread cleanup.
+//
+void OS_CleanupThreadData(void)
+{
+ int old_cancel_state, old_cancel_type;
+ void *cleanupArg = NULL;
+
+ //
+ // Set thread cancel state and push cleanup handler.
+ //
+ pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &old_cancel_state);
+ pthread_cleanup_push(DetachThreadLinux, (void *) cleanupArg);
+
+ //
+ // Put the thread in deferred cancellation mode.
+ //
+ pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, &old_cancel_type);
+
+ //
+ // Pop cleanup handler and execute it prior to unregistering
+ // the cleanup handler.
+ //
+ pthread_cleanup_pop(1);
+
+ //
+ // Restore the thread's previous cancellation mode.
+ //
+ pthread_setcanceltype(old_cancel_state, NULL);
+}
+
+//
+// Thread Local Storage Operations
+//
+OS_TLSIndex OS_AllocTLSIndex()
+{
+ pthread_key_t pPoolIndex;
+
+ //
+ // Create global pool key.
+ //
+ if ((pthread_key_create(&pPoolIndex, NULL)) != 0) {
+ assert(0 && "OS_AllocTLSIndex(): Unable to allocate Thread Local Storage");
+ return false;
+ }
+ else {
+ return pPoolIndex;
+ }
+}
+
+
+bool OS_SetTLSValue(OS_TLSIndex nIndex, void *lpvValue)
+{
+ if (nIndex == OS_INVALID_TLS_INDEX) {
+ assert(0 && "OS_SetTLSValue(): Invalid TLS Index");
+ return false;
+ }
+
+ if (pthread_setspecific(nIndex, lpvValue) == 0)
+ return true;
+ else
+ return false;
+}
+
+
+bool OS_FreeTLSIndex(OS_TLSIndex nIndex)
+{
+ if (nIndex == OS_INVALID_TLS_INDEX) {
+ assert(0 && "OS_SetTLSValue(): Invalid TLS Index");
+ return false;
+ }
+
+ //
+ // Delete the global pool key.
+ //
+ if (pthread_key_delete(nIndex) == 0)
+ return true;
+ else
+ return false;
+}