handle correctly never/always shown scrollbars in GetClientSize()

[wxWidgets.git] / src / unix / threadpsx.cpp

diff --git a/src/unix/threadpsx.cpp b/src/unix/threadpsx.cpp
index a133ba9fa0d117dc7d662d414a69b81e98428856..692be7d169bc96e1179749c0fc86f7b9268fd0fe 100644 (file)
--- a/src/unix/threadpsx.cpp
+++ b/src/unix/threadpsx.cpp
@@ -67,17 +67,6 @@
     #define THR_ID(thr) ((long)(thr)->GetId())
 #endif
 
-#ifdef __WXMAC__
-
-    // implement wxCriticalSection using mutexes
-wxCriticalSection::wxCriticalSection( wxCriticalSectionType critSecType )
-       : m_mutex( critSecType == wxCRITSEC_DEFAULT ? wxMUTEX_RECURSIVE : wxMUTEX_DEFAULT )  { }
-wxCriticalSection::~wxCriticalSection() { }
-
-void wxCriticalSection::Enter() { (void)m_mutex.Lock(); }
-void wxCriticalSection::Leave() { (void)m_mutex.Unlock(); }
-
-#endif
 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------
@@ -189,6 +178,8 @@ private:
 private:
     pthread_mutex_t m_mutex;
     bool m_isOk;
+    wxMutexType m_type;
+    unsigned long m_owningThread;
 
     // wxConditionInternal uses our m_mutex
     friend class wxConditionInternal;
@@ -203,6 +194,9 @@ extern "C" int pthread_mutexattr_settype(pthread_mutexattr_t *, int);
 
 wxMutexInternal::wxMutexInternal(wxMutexType mutexType)
 {
+    m_type = mutexType;
+    m_owningThread = 0;
+
     int err;
     switch ( mutexType )
     {
@@ -263,6 +257,12 @@ wxMutexInternal::~wxMutexInternal()
 
 wxMutexError wxMutexInternal::Lock()
 {
+    if ((m_type == wxMUTEX_DEFAULT) && (m_owningThread != 0))
+    {
+        if (m_owningThread == wxThread::GetCurrentId())
+           return wxMUTEX_DEAD_LOCK;
+    }
+        
     return HandleLockResult(pthread_mutex_lock(&m_mutex));
 }
 
@@ -318,6 +318,8 @@ wxMutexError wxMutexInternal::Lock(unsigned long ms)
 
 wxMutexError wxMutexInternal::HandleLockResult(int err)
 {
+    // wxPrintf( "err %d\n", err );
+
     switch ( err )
     {
         case EDEADLK:
@@ -334,6 +336,8 @@ wxMutexError wxMutexInternal::HandleLockResult(int err)
             return wxMUTEX_TIMEOUT;
 
         case 0:
+            if (m_type == wxMUTEX_DEFAULT)
+                m_owningThread = wxThread::GetCurrentId();
             return wxMUTEX_NO_ERROR;
 
         default:
@@ -359,6 +363,8 @@ wxMutexError wxMutexInternal::TryLock()
             break;
 
         case 0:
+            if (m_type == wxMUTEX_DEFAULT)
+                m_owningThread = wxThread::GetCurrentId();
             return wxMUTEX_NO_ERROR;
 
         default:
@@ -370,6 +376,8 @@ wxMutexError wxMutexInternal::TryLock()
 
 wxMutexError wxMutexInternal::Unlock()
 {
+    m_owningThread = 0;
+                
     int err = pthread_mutex_unlock(&m_mutex);
     switch ( err )
     {