void WXDLLIMPEXP_BASE wxMutexGuiLeaveOrEnter()
{
wxASSERT_MSG( wxThread::IsMain(),
wxT("only main thread may call wxMutexGuiLeaveOrEnter()!") );
if ( !gs_critsectWaitingForGui )
return;
wxCriticalSectionLocker enter(*gs_critsectWaitingForGui);
if ( gs_nWaitingForGui == 0 )
{
// no threads are waiting for GUI - so we may acquire the lock without
// any danger (but only if we don't already have it)
if ( !wxGuiOwnedByMainThread() )
{
gs_critsectGui->Enter();
gs_bGuiOwnedByMainThread = true;
}
//else: already have it, nothing to do
}
else
{
// some threads are waiting, release the GUI lock if we have it
if ( wxGuiOwnedByMainThread() )
wxMutexGuiLeave();
//else: some other worker thread is doing GUI
}
}
static OSStatus Listener(AudioObjectID objectID,
UInt32 numberAddresses,
const AudioObjectPropertyAddress inAddresses[],
void *clientData)
{
DeviceChangeListener *This = (DeviceChangeListener *) clientData;
for (int i = 0; i < numberAddresses; i++)
{
#if 0
printf("address %d\n", i);
printf("selector %08x\n", inAddresses[i].mSelector);
printf("scope %08x\n", inAddresses[i].mScope);
printf("element %08x\n", inAddresses[i].mElement);
#endif
if (This->mEnabled)
{
This->mEnabled = false;
wxMutexGuiEnter();
wxCommandEvent e(EVT_DEVICE_CHANGE);
This->mHandler->AddPendingEvent(e);
wxMutexGuiLeave();
}
}
return 0;
}
/////////////////////
// Ask to stop later
void AudioPlayer::RequestStop() {
wxCommandEvent event(wxEVT_STOP_AUDIO, 1000);
event.SetEventObject(this);
wxMutexGuiEnter();
AddPendingEvent(event);
wxMutexGuiLeave();
}
wxThread::ExitCode MyGUIThread::Entry()
{
// uncomment this to check that disabling logging here does disable it for
// this thread -- but not the main one if you also comment out wxLogNull
// line in MyFrame::OnStartGUIThread()
//wxLogNull noLog;
// this goes to the main window
wxLogMessage("GUI thread starting");
// use a thread-specific log target for this thread to show that its
// messages don't appear in the main window while it runs
wxLogBuffer logBuf;
wxLog::SetThreadActiveTarget(&logBuf);
for (int i=0; i<GUITHREAD_NUM_UPDATES && !TestDestroy(); i++)
{
// inform the GUI toolkit that we're going to use GUI functions
// from a secondary thread:
wxMutexGuiEnter();
{
wxCriticalSectionLocker lock(m_dlg->m_csBmp);
// draw some more stuff on the bitmap
wxMemoryDC dc(m_dlg->m_bmp);
dc.SetBrush((i%2)==0 ? *wxBLUE_BRUSH : *wxGREEN_BRUSH);
dc.DrawRectangle(rand()%GUITHREAD_BMP_SIZE, rand()%GUITHREAD_BMP_SIZE, 30, 30);
// simulate long drawing time:
wxMilliSleep(200);
}
// if we don't release the GUI mutex the MyImageDialog won't be able to refresh
wxMutexGuiLeave();
// notify the dialog that another piece of our masterpiece is complete:
wxThreadEvent event( wxEVT_THREAD, GUITHREAD_EVENT );
event.SetInt(i+1);
wxQueueEvent( m_dlg, event.Clone() );
if ( !((i + 1) % 10) )
{
// this message will go to the buffer
wxLogMessage("Step #%d.", i + 1);
}
// give the main thread the time to refresh before we lock the GUI mutex again
// FIXME: find a better way to do this!
wxMilliSleep(100);
}
// now remove the thread-specific thread target
wxLog::SetThreadActiveTarget(NULL);
// so that this goes to the main window again
wxLogMessage("GUI thread finished.");
return (ExitCode)0;
}
void paint(const Configuration& config)
{
wxMutexGuiEnter();
m_vlayer->clear();
m_vlayer << config;
wxMutexGuiLeave();
m_panel->Refresh();
}
Generator::~Generator(){
if(!wxThread::IsMain()) // Queued in destroy list in main thread (or deleted after run in current thread)?
wxMutexGuiEnter();
this->gencanc->Enable(true); // Disabled in case of cancel operation
this->gencanc->SetLabelText(_("Generate"));
this->gencanc->SetToolTip(_("Start process!"));
if(!wxThread::IsMain())
wxMutexGuiLeave();
}
/* we have to use this to avoid GUI-noGUI threads crashing */
void printevent(const char *msg)
{
#ifndef __WXGTK__
wxMutexGuiEnter();
#endif /* __WXGTK__ */
wxLogMessage(wxT("%s"), msg);
#ifndef __WXGTK__
wxMutexGuiLeave();
#endif /* __WXGTK__ */
}
void DSPDebuggerLLE::Repopulate()
{
if (!wxIsMainThread())
wxMutexGuiEnter();
UpdateSymbolMap();
UpdateDisAsmListView();
UpdateRegisterFlags();
UpdateState();
if (!wxIsMainThread())
wxMutexGuiLeave();
}
/* sample error callback expecting a FILE* client object */
void mxf_error_callback(const char *msg, void *client_data) {
int message_len = strlen(msg) - 1;
if (msg[message_len] != '\n')
message_len = MAX_MESSAGE_LEN;
#ifndef __WXGTK__
wxMutexGuiEnter();
#endif /* __WXGTK__ */
wxLogMessage(wxT("[ERROR] %.*s"), message_len, msg);
#ifndef __WXGTK__
wxMutexGuiLeave();
#endif /* __WXGTK__ */
}
// save the jp2 file format
bool wxJP2Handler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbose )
{
#ifndef __WXGTK__
wxMutexGuiEnter();
#endif /* __WXGTK__ */
wxLogError(wxT("JP2: Couldn't save image -> not implemented."));
#ifndef __WXGTK__
wxMutexGuiLeave();
#endif /* __WXGTK__ */
return false;
}
void AudioThread::WriteText(const wxString& text)
{
wxString msg;
wxMutexGuiEnter();
msg << text;
m_frame->WriteText(msg);
wxMutexGuiLeave();
}
HRESULT STDMETHODCALLTYPE OnDeviceStateChanged(LPCWSTR pwstrDeviceId, DWORD dwNewState)
{
if (mEnabled)
{
mEnabled = false;
wxMutexGuiEnter();
wxCommandEvent e(EVT_DEVICE_CHANGE);
mHandler->AddPendingEvent(e);
wxMutexGuiLeave();
}
return S_OK;
}
void nbr_event_panel::SetCount(int idx,int count)
{
wxString str;
bool ismain=wxThread::IsMain();
if ((idx<0)||(idx>=m_num_rows))
return;
if (!ismain) wxMutexGuiEnter();
str.Printf("%i",count);
m_event_grid->SetCellValue(idx,1,str);
if (!ismain) wxMutexGuiLeave();
}
void wxApp::WakeUpIdle()
{
#if wxUSE_THREADS
if (!wxThread::IsMain())
wxMutexGuiEnter();
#endif
wxEventLoop::GetActive()->WakeUp();
#if wxUSE_THREADS
if (!wxThread::IsMain())
wxMutexGuiLeave();
#endif
}
void DSPDebuggerLLE::Update()
{
#if defined __WXGTK__
if (!wxIsMainThread())
wxMutexGuiEnter();
#endif
UpdateSymbolMap();
UpdateDisAsmListView();
UpdateRegisterFlags();
UpdateState();
#if defined __WXGTK__
if (!wxIsMainThread())
wxMutexGuiLeave();
#endif
}
void wxApp::WakeUpIdle()
{
#if wxUSE_THREADS
if (!wxThread::IsMain())
wxMutexGuiEnter();
#endif
while (wxTheApp->ProcessIdle())
;
#if wxUSE_THREADS
if (!wxThread::IsMain())
wxMutexGuiLeave();
#endif
}
void AudioThread::WriteText(const wxString& text)
{
wxString msg;
// before doing any GUI calls we must ensure that this thread is the only
// one doing it!
wxMutexGuiEnter();
msg << text;
m_frame->WriteText(msg);
wxMutexGuiLeave();
}
static gint wxapp_poll_func( GPollFD *ufds, guint nfds, gint timeout )
{
gdk_threads_enter();
wxMutexGuiLeave();
g_mainThreadLocked = true;
gint res = (*wxgs_poll_func)(ufds, nfds, timeout);
wxMutexGuiEnter();
g_mainThreadLocked = false;
gdk_threads_leave();
return res;
}
void threadIdaServer::sendRecvEvent(wxString *data)
{
wxCommandEvent DoneEvent( wxEVT_COMMAND_BUTTON_CLICKED );
DoneEvent.SetString(*data);
DoneEvent.SetInt(THREAD_IDA_MSG_RECEIVED);
if (m_parentFrame)
{
wxMutexGuiEnter();
wxPostEvent(m_parentFrame, DoneEvent);
wxMutexGuiLeave();
}
delete data;
}
void threadIdaServer::sendDoneEvent(wxString msg, int retCode)
{
// Tell the parent frame we're done so it can load the GUI
wxCommandEvent DoneEvent( wxEVT_COMMAND_BUTTON_CLICKED );
// Put the save file name in the event for later display
DoneEvent.SetString(msg);
DoneEvent.SetInt(retCode);
if (m_parentFrame)
{
wxMutexGuiEnter();
wxPostEvent(m_parentFrame, DoneEvent);
wxMutexGuiLeave();
}
}
void PathUtilDlg::Dump( std::string msg )
{ // wxPostEvent?
OutputDebugStringA(msg.c_str());
bool lock = (m_host_thread_id!=GetCurrentThreadId());
if (lock)
wxMutexGuiEnter();
this->SetStatusText( to_tchar_string(msg), 0);
wxString s = to_tchar_string(msg);
wxLogMessage(s);
if (boost::ends_with(msg, "\r\n")==false)
{
s += wxT("\r\n");
}
if (lock)
wxMutexGuiLeave();
}
void CFrame::GetRenderWindowSize(int& x, int& y, int& width, int& height)
{
#ifdef __WXGTK__
if (!wxIsMainThread())
wxMutexGuiEnter();
#endif
wxRect client_rect = m_RenderParent->GetClientRect();
width = client_rect.width;
height = client_rect.height;
x = client_rect.x;
y = client_rect.y;
#ifdef __WXGTK__
if (!wxIsMainThread())
wxMutexGuiLeave();
#endif
}
void threadIdaServer::OnExit(void)
{
// Called when the thread exits by termination or with Delete()
// but not Kill()ed
wxMutexGuiEnter();
wxLogDebug(wxT("Exiting"));
wxMutexGuiLeave();
closesocket(ListenSocket);
for(i = 0 ; i < TotalSockets ; i++)
FreeSocketInformation(i);
this->sendDoneEvent(wxT("Done"), THREAD_IDA_FINISHED_NOERROR);
}
bool Host_GetKeyState(int keycode)
{
#ifdef _WIN32
return (0 != GetAsyncKeyState(keycode));
#elif defined __WXGTK__
std::unique_lock<std::recursive_mutex> lk(main_frame->keystate_lock, std::try_to_lock);
if (!lk.owns_lock())
return false;
bool key_pressed;
if (!wxIsMainThread()) wxMutexGuiEnter();
key_pressed = wxGetKeyState(wxKeyCode(keycode));
if (!wxIsMainThread()) wxMutexGuiLeave();
return key_pressed;
#else
return wxGetKeyState(wxKeyCode(keycode));
#endif
}
void OPJEncoThread::WriteText(const wxString& text)
{
wxString msg;
// before doing any GUI calls we must ensure that this thread is the only
// one doing it!
#ifndef __WXGTK__
wxMutexGuiEnter();
#endif // __WXGTK__
msg << text;
m_canvas->WriteText(msg);
#ifndef __WXGTK__
wxMutexGuiLeave();
#endif // __WXGTK__
}
wxThread::ExitCode turbotrace::Entry()
{
tlog(_("Thread starting\n"));
//Resolve the hostname , get the ip address
if(!resolve_host(host))
{
return false;
}
wxMutexGuiEnter();
parent_frame->set_ip( wxString( inet_ntoa(dest_ip) , wxConvUTF8) );
wxMutexGuiLeave();
//Call the outer class function start_sniffer
start_sniffer();
return (wxThread::ExitCode)0;
}
void wxThreadInternal::Wait()
{
wxCHECK_RET( !m_isDetached, wxT("can't wait for a detached thread") );
// if the thread we're waiting for is waiting for the GUI mutex, we will
// deadlock so make sure we release it temporarily
if ( wxThread::IsMain() )
{
// give the thread we're waiting for chance to do the GUI call
// it might be in, we don't do this conditionally as the to be waited on
// thread might have to acquire the mutex later but before terminating
if ( wxGuiOwnedByMainThread() )
wxMutexGuiLeave();
}
{
wxCriticalSectionLocker lock(m_csJoinFlag);
if ( m_shouldBeJoined )
{
void *param1, *param2, *rc;
OSStatus err = MPWaitOnQueue(
m_notifyQueueId,
¶m1,
¶m2,
&rc,
kDurationForever );
if (err != noErr)
{
wxLogSysError( wxT( "Cannot wait for thread termination."));
rc = (void*) -1;
}
// actually param1 would be the address of m_exitcode
// but we don't need this here
m_exitcode = rc;
m_shouldBeJoined = false;
}
}
}
void wxThreadInternal::Wait()
{
wxCHECK_RET( !m_isDetached, _T("can't wait for a detached thread") );
// if the thread we're waiting for is waiting for the GUI mutex, we will
// deadlock so make sure we release it temporarily
if ( wxThread::IsMain() )
wxMutexGuiLeave();
wxLogTrace(TRACE_THREADS,
_T("Starting to wait for thread %ld to exit."),
THR_ID(this));
// to avoid memory leaks we should call pthread_join(), but it must only be
// done once so use a critical section to serialize the code below
{
wxCriticalSectionLocker lock(m_csJoinFlag);
if ( m_shouldBeJoined )
{
// FIXME shouldn't we set cancellation type to DISABLED here? If
// we're cancelled inside pthread_join(), things will almost
// certainly break - but if we disable the cancellation, we
// might deadlock
if ( pthread_join(GetId(), &m_exitcode) != 0 )
{
// this is a serious problem, so use wxLogError and not
// wxLogDebug: it is possible to bring the system to its knees
// by creating too many threads and not joining them quite
// easily
wxLogError(_("Failed to join a thread, potential memory leak detected - please restart the program"));
}
m_shouldBeJoined = false;
}
}
// reacquire GUI mutex
if ( wxThread::IsMain() )
wxMutexGuiEnter();
}
bool wxGUIEventLoop::Dispatch()
{
if ( !wxTheApp )
return false;
wxMacAutoreleasePool autoreleasepool;
EventRef theEvent;
OSStatus status = ReceiveNextEvent(0, NULL, m_sleepTime, true, &theEvent) ;
switch (status)
{
case eventLoopTimedOutErr :
if ( wxTheApp->ProcessIdle() )
m_sleepTime = kEventDurationNoWait ;
else
{
m_sleepTime = kEventDurationSecond;
#if wxUSE_THREADS
wxMutexGuiLeave();
wxMilliSleep(20);
wxMutexGuiEnter();
#endif
}
break;
case eventLoopQuitErr :
// according to QA1061 this may also occur
// when a WakeUp Process is executed
break;
default:
DispatchAndReleaseEvent(theEvent);
m_sleepTime = kEventDurationNoWait ;
break;
}
return true;
}
void dc_gui_chatpanel::WriteToRichText(std::string msg, wxColour col)
{
if (!wxIsMainThread())
wxMutexGuiEnter();
txtMain->Freeze();
txtMain->SetCaretPosition(txtMain->GetLastPosition() - 1);
size_t before_number_of_lines = txtMain->GetNumberOfLines();
txtMain->Newline();
txtMain->BeginTextColour(col);
txtMain->WriteText(msg);
txtMain->EndTextColour();
size_t after_number_of_lines = txtMain->GetNumberOfLines();
txtMain->Thaw();
txtMain->ScrollLines(txtMain->GetNumberOfLines());
if (!wxIsMainThread())
wxMutexGuiLeave();
}
