1 files changed, 55 insertions, 0 deletions
diff --git a/DebugUtils/GTMDebugThreadValidation.h b/DebugUtils/GTMDebugThreadValidation.h
new file mode 100644
index 0000000..0636159
--- /dev/null
+++ b/DebugUtils/GTMDebugThreadValidation.h
@@ -0,0 +1,55 @@
+//
+//  GTMDebugThreadValidation.h
+//
+//  Copyright 2008 Google Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
+//  use this file except in compliance with the License.  You may obtain a copy
+//  of the License at
+// 
+//  http://www.apache.org/licenses/LICENSE-2.0
+// 
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+//  License for the specific language governing permissions and limitations under
+//  the License.
+//
+
+#if DEBUG
+#import "GTMDefines.h"
+#import <Foundation/Foundation.h>
+
+// GTMAssertRunningOnMainThread will allow you to verify that you are
+// currently running on the main thread. This can be useful for checking
+// under DEBUG to make sure that code that requires being run on the main thread
+// is doing so. Use the GTMAssertRunningOnMainThread macro, don't use
+// the _GTMAssertRunningOnMainThread or _GTMIsRunningOnMainThread
+// helper functions.
+
+// On Leopard and above we can just use NSThread functionality.
+#if MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4
+BOOL _GTMIsRunningOnMainThread(void);
+#else  // MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4
+#import <Foundation/Foundation.h>
+GTM_INLINE BOOL _GTMIsRunningOnMainThread(void) { 
+  return [NSThread isMainThread]; 
+}
+#endif  // MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4
+
+GTM_INLINE void _GTMAssertRunningOnMainThread(const char *func,
+                                              const char *file, 
+                                              int lineNum) { 
+  _GTMDevAssert(_GTMIsRunningOnMainThread(), 
+                @"%s not being run on main thread (%s - %d)",
+                func, file, lineNum);
+}
+
+#define GTMAssertRunningOnMainThread() \
+  (_GTMAssertRunningOnMainThread(__func__, __FILE__, __LINE__))
+
+#else // DEBUG
+
+#define GTMAssertRunningOnMainThread() do { } while (0)
+
+#endif // DEBUG