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/*************************************************************************
NonGuiThread.cpp
James Crook
(C) Audacity Developers, 2007
wxWidgets license. See Licensing.txt
**********************************************************************//**
\class NonGuiThread
\brief NonGuiThread a thread class that allows non-GUI activities to
take place in the background without killing the GUI.
*//**********************************************************************/
#include <wx/wx.h>
#include <wx/apptrait.h>
#include "NonGuiThread.h"
bool NonGuiThread::IsLive=false;
NonGuiThread::NonGuiThread(tGenericFn pFn)
{
mpFn = pFn;
IsLive=true;
mbExit = false;
}
NonGuiThread::~NonGuiThread()
{
IsLive=false;
}
NonGuiThread::ExitCode NonGuiThread::Entry()
{
// The while isn't needed here, but may be later if we break the function
// up...
while( !TestDestroy() && !mbExit )
{
mbExit=true;
(*mpFn)();
}
return (ExitCode)0;
}
// This one runs the function and only returns when function
// has run to completion.
void NonGuiThread::RunInThread(tGenericFn pFn)
{
#ifdef WXMSW
wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
wxASSERT( traits );//"no wxAppTraits in RunInThread()?"
void *cookie = NULL;
// disable all app windows while waiting for the child process to finish
cookie = traits->BeforeChildWaitLoop();
#endif
NonGuiThread * mpThread = new NonGuiThread(pFn);
mpThread->Create();
mpThread->Resume();
wxLogDebug(wxT("Into the thread..."));
while( mpThread->IsLive )
{
wxMilliSleep( 100 );
//traits->AlwaysYield();
wxTheApp->Yield();
}
#ifdef WXMSW
traits->AfterChildWaitLoop(cookie);
#endif
}
// This function starts the thread and returns immediately.
NonGuiThread * NonGuiThread::StartChild( tGenericFn pFn )
{
NonGuiThread * pThread = new NonGuiThread(pFn);
//pThread->mpFn = pFn;
pThread->Create();
pThread->Run();
return pThread;
}
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