X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/424c9ce771d938db96d41135ba402a3a1134fa65..ccd5d46c7b69632eaa231e8fc7801dd5af2faaa8:/src/msw/thread.cpp

diff --git a/src/msw/thread.cpp b/src/msw/thread.cpp
index f6d9939eb4..2a692e374d 100644
--- a/src/msw/thread.cpp
+++ b/src/msw/thread.cpp
@@ -189,9 +189,8 @@ private:
     wxMutexError LockTimeout(DWORD milliseconds);
 
     HANDLE m_mutex;
-    
+
     unsigned long m_owningThread;
-    bool m_isLocked;
     wxMutexType m_type;
 
     DECLARE_NO_COPY_CLASS(wxMutexInternal)
@@ -210,13 +209,12 @@ wxMutexInternal::wxMutexInternal(wxMutexType mutexType)
 
     m_type = mutexType;
     m_owningThread = 0;
-    m_isLocked = false;
 
     if ( !m_mutex )
     {
         wxLogLastError(_T("CreateMutex()"));
     }
-    
+
 }
 
 wxMutexInternal::~wxMutexInternal()
@@ -243,7 +241,7 @@ wxMutexError wxMutexInternal::LockTimeout(DWORD milliseconds)
     if (m_type == wxMUTEX_DEFAULT)
     {
         // Don't allow recursive
-        if (m_isLocked)
+        if (m_owningThread != 0)
         {
             if (m_owningThread == wxThread::GetCurrentId())
                 return wxMUTEX_DEAD_LOCK;
@@ -251,18 +249,14 @@ wxMutexError wxMutexInternal::LockTimeout(DWORD milliseconds)
     }
 
     DWORD rc = ::WaitForSingleObject(m_mutex, milliseconds);
-    if ( rc == WAIT_ABANDONED )
-    {
-        // the previous caller died without releasing the mutex, but now we can
-        // really lock it
-        wxLogDebug(_T("WaitForSingleObject() returned WAIT_ABANDONED"));
-
-        // use 0 timeout, normally we should always get it
-        rc = ::WaitForSingleObject(m_mutex, 0);
-    }
-
     switch ( rc )
     {
+        case WAIT_ABANDONED:
+            // the previous caller died without releasing the mutex, so even
+            // though we did get it, log a message about this
+            wxLogDebug(_T("WaitForSingleObject() returned WAIT_ABANDONED"));
+            // fall through
+
         case WAIT_OBJECT_0:
             // ok
             break;
@@ -270,7 +264,6 @@ wxMutexError wxMutexInternal::LockTimeout(DWORD milliseconds)
         case WAIT_TIMEOUT:
             return wxMUTEX_TIMEOUT;
 
-        case WAIT_ABANDONED:        // checked for above
         default:
             wxFAIL_MSG(wxT("impossible return value in wxMutex::Lock"));
             // fall through
@@ -281,26 +274,25 @@ wxMutexError wxMutexInternal::LockTimeout(DWORD milliseconds)
     }
 
     if (m_type == wxMUTEX_DEFAULT)
-    { 
+    {
         // required for checking recursiveness
-        m_isLocked = true;
         m_owningThread = wxThread::GetCurrentId();
     }
-    
+
     return wxMUTEX_NO_ERROR;
 }
 
 wxMutexError wxMutexInternal::Unlock()
 {
+    // required for checking recursiveness
+    m_owningThread = 0;
+
     if ( !::ReleaseMutex(m_mutex) )
     {
         wxLogLastError(_T("ReleaseMutex()"));
 
         return wxMUTEX_MISC_ERROR;
     }
-    
-    // required for checking recursiveness
-    m_isLocked = false;
 
     return wxMUTEX_NO_ERROR;
 }