#include "wx/mac/uma.h"
#endif
+#define INFINITE 0xFFFFFFFF
+
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
class wxMutexInternal
{
public:
- wxMutexInternal()
+ wxMutexInternal(wxMutexType WXUNUSED(mutexType))
{
m_owner = kNoThreadID ;
+ m_locked = 0;
}
~wxMutexInternal()
{
+ if ( m_locked > 0 )
+ {
+ wxLogDebug(_T("Warning: freeing a locked mutex (%ld locks)."), m_locked);
+ }
}
+ bool IsOk() const { return true; }
+
+ wxMutexError Lock() ;
+ wxMutexError TryLock() ;
+ wxMutexError Unlock();
public:
ThreadID m_owner ;
wxArrayLong m_waiters ;
+ long m_locked ;
};
-wxMutex::wxMutex()
-{
- m_internal = new wxMutexInternal;
-
- m_locked = 0;
-}
-
-wxMutex::~wxMutex()
-{
- if ( m_locked > 0 )
- {
- wxLogDebug(_T("Warning: freeing a locked mutex (%d locks)."), m_locked);
- }
-
- delete m_internal;
-}
-
-wxMutexError wxMutex::Lock()
+wxMutexError wxMutexInternal::Lock()
{
wxMacStCritical critical ;
if ( UMASystemIsInitialized() )
err = ::MacGetCurrentThread(¤t);
// if we are not the owner, add this thread to the list of waiting threads, stop this thread
// and invoke the scheduler to continue executing the owner's thread
- while ( m_internal->m_owner != kNoThreadID && m_internal->m_owner != current)
+ while ( m_owner != kNoThreadID && m_owner != current)
{
- m_internal->m_waiters.Add(current);
- err = ::SetThreadStateEndCritical(kCurrentThreadID, kStoppedThreadState, m_internal->m_owner);
+ m_waiters.Add(current);
+ err = ::SetThreadStateEndCritical(kCurrentThreadID, kStoppedThreadState, m_owner);
err = ::ThreadBeginCritical();
}
- m_internal->m_owner = current;
+ m_owner = current;
}
m_locked++;
return wxMUTEX_NO_ERROR;
}
-wxMutexError wxMutex::TryLock()
+wxMutexError wxMutexInternal::TryLock()
{
wxMacStCritical critical ;
if ( UMASystemIsInitialized() )
{
- OSErr err ;
ThreadID current = kNoThreadID;
::MacGetCurrentThread(¤t);
// if we are not the owner, give an error back
- if ( m_internal->m_owner != kNoThreadID && m_internal->m_owner != current )
+ if ( m_owner != kNoThreadID && m_owner != current )
return wxMUTEX_BUSY;
- m_internal->m_owner = current;
+ m_owner = current;
}
m_locked++;
return wxMUTEX_NO_ERROR;
}
-wxMutexError wxMutex::Unlock()
+wxMutexError wxMutexInternal::Unlock()
{
if ( UMASystemIsInitialized() )
{
m_locked--;
// this mutex is not owned by anybody anmore
- m_internal->m_owner = kNoThreadID;
+ m_owner = kNoThreadID;
// now pass on to the first waiting thread
ThreadID firstWaiting = kNoThreadID;
bool found = false;
- while (!m_internal->m_waiters.IsEmpty() && !found)
+ while (!m_waiters.IsEmpty() && !found)
{
- firstWaiting = m_internal->m_waiters[0];
+ firstWaiting = m_waiters[0];
err = ::SetThreadState(firstWaiting, kReadyThreadState, kNoThreadID);
// in case this was not successful (dead thread), we just loop on and reset the id
found = (err != threadNotFoundErr);
if ( !found )
firstWaiting = kNoThreadID ;
- m_internal->m_waiters.RemoveAt(0) ;
+ m_waiters.RemoveAt(0) ;
}
// now we have a valid firstWaiting thread, which has been scheduled to run next, just end the
// critical section and invoke the scheduler
return wxMUTEX_NO_ERROR;
}
+// --------------------------------------------------------------------------
+// wxSemaphore
+// --------------------------------------------------------------------------
+
+// TODO not yet implemented
+
+class wxSemaphoreInternal
+{
+public:
+ wxSemaphoreInternal(int initialcount, int maxcount);
+ ~wxSemaphoreInternal();
+
+ bool IsOk() const { return true ; }
+
+ wxSemaError Wait() { return WaitTimeout(INFINITE); }
+ wxSemaError TryWait() { return WaitTimeout(0); }
+ wxSemaError WaitTimeout(unsigned long milliseconds);
+
+ wxSemaError Post();
+
+private:
+};
+
+wxSemaphoreInternal::wxSemaphoreInternal(int initialcount, int maxcount)
+{
+ if ( maxcount == 0 )
+ {
+ // make it practically infinite
+ maxcount = INT_MAX;
+ }
+}
+
+wxSemaphoreInternal::~wxSemaphoreInternal()
+{
+}
+
+wxSemaError wxSemaphoreInternal::WaitTimeout(unsigned long milliseconds)
+{
+ return wxSEMA_MISC_ERROR;
+}
+
+wxSemaError wxSemaphoreInternal::Post()
+{
+ return wxSEMA_MISC_ERROR;
+}
+
// ----------------------------------------------------------------------------
// wxCondition implementation
// ----------------------------------------------------------------------------
+// TODO this is not yet completed
+
class wxConditionInternal
{
public:
- wxConditionInternal()
+ wxConditionInternal(wxMutex& mutex) : m_mutex(mutex)
{
m_excessSignals = 0 ;
}
{
}
- bool Wait(unsigned long msectimeout)
+ bool IsOk() const { return m_mutex.IsOk() ; }
+
+ wxCondError Wait()
+ {
+ return WaitTimeout(0xFFFFFFFF );
+ }
+
+ wxCondError WaitTimeout(unsigned long msectimeout)
{
wxMacStCritical critical ;
if ( m_excessSignals > 0 )
{
--m_excessSignals ;
- return TRUE ;
+ return wxCOND_NO_ERROR ;
}
else if ( msectimeout == 0 )
{
- return FALSE ;
+ return wxCOND_MISC_ERROR ;
}
else
{
return rc != WAIT_TIMEOUT;
*/
- return TRUE ;
+ return wxCOND_NO_ERROR ;
}
- void Signal()
+ wxCondError Signal()
{
wxMacStCritical critical ;
+ return wxCOND_NO_ERROR;
}
+ wxCondError Broadcast()
+ {
+ wxMacStCritical critical ;
+ return wxCOND_NO_ERROR;
+ }
+
wxArrayLong m_waiters ;
wxInt32 m_excessSignals ;
+ wxMutex& m_mutex;
};
-wxCondition::wxCondition()
-{
- m_internal = new wxConditionInternal;
-}
-
-wxCondition::~wxCondition()
-{
- delete m_internal;
-}
-
-void wxCondition::Wait()
-{
- (void)m_internal->Wait(0xFFFFFFFFL);
-}
-
-bool wxCondition::Wait(unsigned long sec,
- unsigned long nsec)
-{
- return m_internal->Wait(sec*1000 + nsec/1000000);
-}
-
-void wxCondition::Signal()
-{
- // set the event to signaled: if a thread is already waiting on it, it will
- // be woken up, otherwise the event will remain in the signaled state until
- // someone waits on it. In any case, the system will return it to a non
- // signalled state afterwards. If multiple threads are waiting, only one
- // will be woken up.
- m_internal->Signal() ;
-}
-
-void wxCondition::Broadcast()
-{
- // this works because all these threads are already waiting and so each
- // SetEvent() inside Signal() is really a PulseEvent() because the event
- // state is immediately returned to non-signaled
- for ( int i = 0; i < m_internal->m_waiters.Count(); i++ )
- {
- Signal();
- }
-}
-
// ----------------------------------------------------------------------------
// wxCriticalSection implementation
// ----------------------------------------------------------------------------
err = MacGetCurrentThread( ¤t ) ;
- for ( int i = 0 ; i < s_threads.Count() ; ++i )
+ for ( size_t i = 0 ; i < s_threads.Count() ; ++i )
{
if ( ( (wxThread*) s_threads[i] )->GetId() == current )
return (wxThread*) s_threads[i] ;
wxThread::~wxThread()
{
s_threads.Remove( (void*) this ) ;
- delete m_internal;
+ if (m_internal != NULL) {
+ delete m_internal;
+ m_internal = NULL;
+ }
}
// create/start thread
return false ;
}
+#include "wx/thrimpl.cpp"
+
#endif // wxUSE_THREADS
// vi:sts=4:sw=4:et
projects / wxWidgets.git / blobdiff