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/*
* lftp and utils
*
* Copyright (c) 1996-2001 by Alexander V. Lukyanov (lav@yars.free.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <config.h>
#include "trio.h"
#include "PollVec.h"
void PollVec::Init()
{
timeout=-1;
}
PollVec::PollVec()
{
Init();
}
void PollVec::SetTimeout(int t)
{
if(t==0)
Empty();
timeout=t;
}
void PollVec::AddTimeout(int t)
{
if(t<0)
t=0;
if(timeout>=0 && timeout<t)
return;
SetTimeout(t);
}
void PollVec::AddFD(int fd,int mask)
{
if(timeout==0)
return;
for(int i=0; i<fds.count(); i++)
{
if(fds[i].fd==fd)
{
fds[i].events|=mask;
return;
}
}
pollfd add;
memset(&add,0,sizeof(add));
add.fd=fd;
add.events=mask;
fds.append(add);
}
void PollVec::Block()
{
if(timeout==0)
return;
if(fds.count()==0)
{
if(/*async==0 && */ timeout<0)
{
/* dead lock */
fprintf(stderr,_("%s: BUG - deadlock detected\n"),"PollVec::Block");
poll(0,0,1000);
return;
}
poll(0,0,timeout);
return;
}
poll(fds.get_non_const(),fds.count(),timeout);
return;
}
void PollVec::Merge(const PollVec &p)
{
if(p.timeout>=0)
AddTimeout(p.timeout);
if(timeout==0)
return;
for(int i=0; i<p.fds.count(); i++)
AddFD(p.fds[i].fd,p.fds[i].events);
}
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