run.c
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/**
* \file
*
* \author Georg Hopp
*
* \copyright
* Copyright © 2012 Georg Hopp
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "server.h"
#include "logger.h"
#include "utils/signalHandling.h"
int serverPoll(Server);
int serverHandleAccept(Server, unsigned int);
ssize_t serverRead(Server, unsigned int);
ssize_t serverWrite(Server, unsigned int);
void serverCloseConn(Server, unsigned int);
void
serverRun(Server this)
{
int events = 0;
loggerLog(this->logger, LOGGER_INFO, "service started");
while (!doShutdown) //! until error or signal
{
unsigned int i;
if (0 <= events) {
/*
* TODO check why sometimes events is less than 0
* There is still a misshandling here.
*/
events = serverPoll(this);
}
/**
* handle accept
*/
if (0 != ((this->fds)[0].revents & POLLIN)) {
if (0 > serverHandleAccept(this, 0)) {
events--;
}
}
/**
* handle accept SSL
*/
if (0 != ((this->fds)[1].revents & POLLIN)) {
if (0 > serverHandleAccept(this, 1)) {
events--;
}
}
for (i=2; i < this->nfds; i++) {
/**
* handle reads
*/
if (0 != ((this->fds)[i].revents & POLLIN)) {
ssize_t processed = serverRead(this, i);
if (0 > processed) {
events--;
switch (processed) {
case -2: // close me...
serverCloseConn(this, i);
case -1: // poll me again
break;
}
}
if (0 < processed) {
(this->fds)[i].events |= POLLOUT;
}
}
/**
* handle writes
*/
if (0 != ((this->fds)[i].revents & POLLOUT)) {
ssize_t remaining = serverWrite(this, i);
if (0 >= remaining) {
/*
* 0 means queue was empty...try again next
* time...no need to poll again.
* Anyway, most likely we need to read again
* so lets finish this event for now.
*/
events--;
switch (remaining) {
case 0: // nothing more to write stop polling
(this->fds)[i].events &= ~POLLOUT;
break;
case -2: // close me...
serverCloseConn(this, i);
case -1: // poll me again
break;
}
}
}
if (0 >= events)
break; // no more events to handle
}
}
}
// vim: set ts=4 sw=4: