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