Remove recursive mutex & fix unbalanced locking in TestPlatformMgr (p…

…roject-chip#1587) We shouldn't use recursive mutexes for synchronization as they greatly complicate analysis and maintenance.
kedars · Jul 21, 2020 · 9987ae5 · 9987ae5
1 parent f815825
commit 9987ae5
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Showing 2 changed files with 3 additions and 13 deletions.
diff --git a/src/include/platform/internal/GenericPlatformManagerImpl_POSIX.ipp b/src/include/platform/internal/GenericPlatformManagerImpl_POSIX.ipp
@@ -53,13 +53,7 @@ CHIP_ERROR GenericPlatformManagerImpl_POSIX<ImplClass>::_InitChipStack(void)
 {
     CHIP_ERROR err = CHIP_NO_ERROR;
 
-#if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER)
-    mChipStackLock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER;
-#elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP)
-    mChipStackLock = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
-#else
-#error "No defined static initializer for POSIX Threads recursive mutex!"
-#endif // defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER)
+    mChipStackLock = PTHREAD_MUTEX_INITIALIZER;
 
     // Initialize the Configuration Manager object.
     err = ConfigurationMgr().Init();

diff --git a/src/platform/tests/TestPlatformMgr.cpp b/src/platform/tests/TestPlatformMgr.cpp
@@ -59,12 +59,8 @@ static void TestPlatformMgr_StartEventLoopTask(nlTestSuite * inSuite, void * inC
 static void TestPlatformMgr_TryLockChipStack(nlTestSuite * inSuite, void * inContext)
 {
     bool locked = PlatformMgr().TryLockChipStack();
-    NL_TEST_ASSERT(inSuite, locked);
-
-    PlatformMgr().LockChipStack();
-    locked = PlatformMgr().TryLockChipStack();
-    PlatformMgr().UnlockChipStack();
-    NL_TEST_ASSERT(inSuite, locked);
+    if (locked)
+        PlatformMgr().UnlockChipStack();
 }
 
 static int sEventRecieved = 0;