bool CIOCP::_DoWrite(PER_SOCKET_CONTEXT* pSocketContext, PER_IO_CONTEXT* pIoContext)
{
if (pIoContext->m_nSendBytes < pIoContext->m_nTotalBytes)
{
//数据未能发送完，继续发送数据
WSABUF* p_wbuf = &pIoContext->m_wsaBuf;
p_wbuf->buf += pIoContext->m_nSendBytes;
p_wbuf->len -= pIoContext->m_nSendBytes;
PostWrite(pSocketContext,pIoContext);
}
else
{
NODEBUF* pNode = pIoContext->m_listBuf.pNode;
pNode = pNode->pNext;
if(pNode&&pNode->len>0)
{
WSABUF* p_wbuf = &pIoContext->m_wsaBuf;
p_wbuf->buf = pNode->buf;
p_wbuf->len = pNode->len;
PostWrite(pSocketContext,pIoContext);
}
else
{
pIoContext->ResetBuffer();
PostRecv(pSocketContext,pIoContext);
}
}
return TRUE;
}
bool MIDIFileWriteMultiTrack::Write ( int num_tracks, int division )
{
if ( !PreWrite() )
return false;
// first, write the header.
writer.WriteFileHeader ( ( num_tracks > 1 )? 1:0, num_tracks, division );
// now write each track
for ( int i = 0; i < num_tracks; ++i )
{
const MIDITrack *t = multitrack->GetTrack ( i );
if ( !t || !t->EventsOrderOK() ) // time of events out of order: t->SortEventsOrder() must be done externally
return false;
writer.WriteTrackHeader ( 0 ); // will be rewritten later
const MIDITimedBigMessage *ev;
MIDIClockTime ev_time = 0;
for ( int event_num = 0; event_num < t->GetNumEvents(); ++event_num )
{
ev = t->GetEventAddress ( event_num );
if ( !ev )
return false;
// don't write to midifile NoOp msgs
if ( ev->IsNoOp() )
continue;
ev_time = ev->GetTime();
// ignore all msgs after EndOfTrack
if ( ev->IsDataEnd() )
break;
// write all other msgs
writer.WriteEvent ( *ev );
if ( writer.ErrorOccurred() )
return false;
}
writer.WriteEndOfTrack ( ev_time );
writer.RewriteTrackLength();
}
if ( !PostWrite() )
return false;
return true;
}
bool MIDIFileWriteMultiTrack::Write( int num_tracks, int division )
{
bool f=true;
if( !PreWrite() )
{
return false;
}
// first, write the header.
writer.WriteFileHeader( (num_tracks>0), num_tracks, division );
// now write each track
for( int i=0; i<num_tracks; ++i )
{
if( writer.ErrorOccurred() )
{
f=false;
break;
}
const MIDITrack *t = multitrack->GetTrack(i);
MIDIClockTime last_event_time=0;
writer.WriteTrackHeader(0); // will be rewritten later
if( t )
{
for( int event_num=0; event_num<t->GetNumEvents(); ++event_num )
{
const MIDITimedBigMessage *ev = t->GetEventAddress( event_num );
if( ev && !ev->IsNoOp() )
{
last_event_time = ev->GetTime();
if( !ev->IsDataEnd() )
{
writer.WriteEvent( *ev );
if( writer.ErrorOccurred() )
{
f=false;
break;
}
}
}
}
}
writer.WriteEndOfTrack(0);
writer.RewriteTrackLength();
}
if( !PostWrite() )
{
return false;
}
return f;
}
