Change SPIN_LOCK_ACQUIRED to 1 and SPIN_LOCK_RELEASED to 2 according to MWG.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@310 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/MdePkg/Library/BaseLib/Synchronization.c b/MdePkg/Library/BaseLib/Synchronization.c
index df395869a295a1b8f0675caaf5624e3b55152ef0..c04edfc25116b481a96c24f73a8e2387f252baaf 100644 (file)
--- a/MdePkg/Library/BaseLib/Synchronization.c
+++ b/MdePkg/Library/BaseLib/Synchronization.c
@@ -14,8 +14,8 @@
 \r
 **/\r
 \r
 \r
 **/\r
 \r

-#define SPIN_LOCK_RELEASED          ((SPIN_LOCK)0)\r
-#define SPIN_LOCK_ACQUIRED          ((SPIN_LOCK)-1)\r
+#define SPIN_LOCK_RELEASED          ((SPIN_LOCK)1)\r
+#define SPIN_LOCK_ACQUIRED          ((SPIN_LOCK)2)\r

 \r
 UINT32\r
 EFIAPI\r
 \r
 UINT32\r
 EFIAPI\r


@@ -94,7 +94,7 @@ InitializeSpinLock (
   )\r
 {\r
   ASSERT (SpinLock != NULL);\r
   )\r
 {\r
   ASSERT (SpinLock != NULL);\r

-  *SpinLock = 0;\r
+  *SpinLock = SPIN_LOCK_RELEASED;\r

   return SpinLock;\r
 }\r
 \r
   return SpinLock;\r
 }\r
 \r


@@ -178,6 +178,7 @@ AcquireSpinLockOrFail (
   )\r
 {\r
   ASSERT (SpinLock != NULL);\r
   )\r
 {\r
   ASSERT (SpinLock != NULL);\r

+  ASSERT (*SpinLock == SPIN_LOCK_ACQUIRED || *SpinLock == SPIN_LOCK_RELEASED);\r

   return (BOOLEAN)(\r
            InterlockedCompareExchangePointer (\r
              (VOID**)SpinLock,\r
   return (BOOLEAN)(\r
            InterlockedCompareExchangePointer (\r
              (VOID**)SpinLock,\r


@@ -208,7 +209,8 @@ ReleaseSpinLock (
   )\r
 {\r
   ASSERT (SpinLock != NULL);\r
   )\r
 {\r
   ASSERT (SpinLock != NULL);\r

-  *SpinLock = 0;\r
+  ASSERT (*SpinLock == SPIN_LOCK_ACQUIRED || *SpinLock == SPIN_LOCK_RELEASED);\r
+  *SpinLock = SPIN_LOCK_RELEASED;\r

   return SpinLock;\r
 }\r
 \r
   return SpinLock;\r
 }\r
 \r