mirror of
https://github.com/WinampDesktop/winamp.git
synced 2024-12-29 17:16:14 +00:00
72 lines
2.4 KiB
C++
72 lines
2.4 KiB
C++
#ifndef NULLSOFT_WAC_DOWNLOAD_MANAGER_DOWNLOADCALLBACKT_H
|
|
#define NULLSOFT_WAC_DOWNLOAD_MANAGER_DOWNLOADCALLBACKT_H
|
|
|
|
#include "wac_downloadManager_api.h"
|
|
|
|
#define WIN32_LEAN_AND_MEAN
|
|
|
|
//#include <windows.h> // for InterlockedIncrememt/Decrement
|
|
#include <atomic>
|
|
|
|
/* DownloadCallbackT is reference counted for you. if you don't like that, inherit from ifc_downloadManagerCallback yourself */
|
|
template <class T>
|
|
class DownloadCallbackT : public ifc_downloadManagerCallback
|
|
{
|
|
public:
|
|
size_t AddRef()
|
|
{
|
|
return _ref_count.fetch_add( 1 );
|
|
}
|
|
|
|
size_t Release()
|
|
{
|
|
if (_ref_count.load() == 0 )
|
|
return _ref_count.load();
|
|
|
|
LONG l_ref_count = _ref_count.fetch_sub( 1 );
|
|
if ( !l_ref_count )
|
|
delete( static_cast<T *>( this ) );
|
|
|
|
return l_ref_count;
|
|
}
|
|
|
|
protected:
|
|
DownloadCallbackT() {}
|
|
|
|
void OnFinish( DownloadToken token ) { Release(); }
|
|
void OnTick( DownloadToken token ) {}
|
|
void OnError( DownloadToken token, int error ) { Release(); }
|
|
void OnCancel( DownloadToken token ) { Release(); }
|
|
void OnConnect( DownloadToken token ) {}
|
|
void OnInit( DownloadToken token ) {}
|
|
void OnData( DownloadToken token, void *data, size_t datalen ) {}
|
|
|
|
int GetSource(wchar_t *source, size_t source_cch) { return 1;}
|
|
int GetTitle(wchar_t *title, size_t title_cch) { return 1;}
|
|
int GetLocation(wchar_t *location, size_t location_cch) { return 1;}
|
|
|
|
#define CBCLASS T
|
|
#define CBCLASST DownloadCallbackT<T>
|
|
START_DISPATCH_INLINE;
|
|
CBT(ADDREF, AddRef);
|
|
CBT(RELEASE, Release);
|
|
VCBT(IFC_DOWNLOADMANAGERCALLBACK_ONFINISH, OnFinish);
|
|
VCBT(IFC_DOWNLOADMANAGERCALLBACK_ONTICK, OnTick);
|
|
VCBT(IFC_DOWNLOADMANAGERCALLBACK_ONERROR, OnError);
|
|
VCBT(IFC_DOWNLOADMANAGERCALLBACK_ONCANCEL, OnCancel);
|
|
VCBT(IFC_DOWNLOADMANAGERCALLBACK_ONCONNECT, OnConnect);
|
|
VCBT(IFC_DOWNLOADMANAGERCALLBACK_ONINIT, OnInit);
|
|
VCBT(IFC_DOWNLOADMANAGERCALLBACK_ONDATA, OnData);
|
|
CBT( IFC_DOWNLOADMANAGERCALLBACK_GETSOURCE, GetSource);
|
|
CBT( IFC_DOWNLOADMANAGERCALLBACK_GETTITLE, GetTitle);
|
|
CBT( IFC_DOWNLOADMANAGERCALLBACK_GETLOCATION, GetLocation);
|
|
END_DISPATCH;
|
|
#undef CBCLASS
|
|
#undef CBCLASST
|
|
|
|
private:
|
|
std::atomic<std::size_t> _ref_count;
|
|
};
|
|
|
|
#endif // !NULLSOFT_WAC_DOWNLOAD_MANAGER_DOWNLOADCALLBACKT_H
|