int Request::forward(int serverId)
{
EventReactor *reactor = conn_->getReactor();
Connector *connector = reactor->getConnector(serverId);
if(connector == NULL)
{
return NOT_MATCH_SERVER;
}
Event *evt = new Event();
evt->set_event(SEND_BACKEND_EVENT);
evt->setHandler(connector);
evt->arg = this;
reactor->registerEvent(evt);
return 0;
}
int DevPoller::waitAndProcessEvents(int iTimeoutMilliSec)
{
if (m_curChanges)
if (applyChanges() == -1)
return LS_FAIL;
struct dvpoll dvp;
dvp.dp_fds = m_events;
dvp.dp_nfds = MAX_EVENTS;
dvp.dp_timeout = iTimeoutMilliSec;
int ret = ioctl(m_fdDP, DP_POLL, &dvp);
if (ret > 0)
{
struct pollfd *pBegin = m_events;
struct pollfd *pEnd = &m_events[ret];
for (; pBegin < pEnd; ++pBegin)
{
int fd = pBegin->fd;
//LS_DBG_L( "DevPoller: fd: %d, revents: %hd", fd, pBegin->revents );
if (fd > m_reactorIndex.getCapacity())
{
//LS_DBG_L( "DevPoller: overflow, remove fd: %d", fd );
appendChange(fd, POLLREMOVE);
}
else
{
EventReactor *pReactor = m_reactorIndex.get(fd);
//if ( !pReactor )
// LS_DBG_L( "DevPoller: pReactor is NULL, remove fd: %d", fd );
if ((pReactor) && (pBegin->fd == pReactor->getfd()))
{
pReactor->setRevent(pBegin->revents);
pReactor->handleEvents(pBegin->revents);
}
else
{
//LS_DBG_L( "DevPoller: does not match, remove fd: %d", fd );
appendChange(fd, POLLREMOVE);
}
}
}
}
return ret;
}
int epoll::reinit()
{
struct epoll_event epevt;
close( m_epfd );
m_epfd = (syscall(__NR_epoll_create, m_reactorIndex.getCapacity() ));
if ( m_epfd == -1 )
return -1;
epevt.data.u64 = 0;
::fcntl( m_epfd, F_SETFD, FD_CLOEXEC );
int n = m_reactorIndex.getUsed();
for( int i = 0; i < n; ++i )
{
EventReactor * pHandler = m_reactorIndex.get( i );
if ( pHandler )
{
epevt.data.u64 = 0;
epevt.data.fd = pHandler->getfd();
epevt.events = pHandler->getEvents();
//(syscall(__NR_epoll_ctl, m_epfd, EPOLL_CTL_ADD, epevt.data.fd, &epevt));
epoll_ctl( m_epfd, EPOLL_CTL_ADD, epevt.data.fd, &epevt);
}
}
return 0;
}
int epoll::waitAndProcessEvents( int iTimeoutMilliSec )
{
//int ret = (syscall(__NR_epoll_wait, m_epfd, m_pResults, EPOLL_RESULT_MAX, iTimeoutMilliSec ));
int ret = epoll_wait( m_epfd, m_pResults, EPOLL_RESULT_MAX, iTimeoutMilliSec );
if ( ret <= 0 )
return ret;
if ( ret == 1 )
{
int fd = m_pResults->data.fd;
EventReactor * pReactor = m_reactorIndex.get( fd );
if ( pReactor && (pReactor->getfd() == fd ) )
{
if ( m_pResults->events & POLLHUP )
pReactor->incHupCounter();
pReactor->assignRevent( m_pResults->events );
pReactor->handleEvents( m_pResults->events );
}
return 1;
}
//if ( ret > EPOLL_RESULT_MAX )
// ret = EPOLL_RESULT_MAX;
int problem_detected = 0;
struct epoll_event * pEnd= m_pResults + ret;
struct epoll_event * p = m_pResults;
while( p < pEnd )
{
int fd = p->data.fd;
EventReactor * pReactor = m_reactorIndex.get( fd );
assert( p->events );
if ( pReactor )
{
if ( pReactor->getfd() == fd )
{
pReactor->assignRevent( p->events );
}
else
{
p->data.fd = -1;
}
}
else
{
//p->data.fd = -1;
if (( s_loop_fd == -1 )||( s_loop_fd == fd ))
{
if ( s_loop_fd == -1 )
{
s_loop_fd = fd;
s_loop_count = 0;
}
problem_detected = 1;
++s_loop_count;
if ( s_loop_count == 10 )
{
if ( p->events & (POLLHUP|POLLERR) )
close( fd );
else
{
struct epoll_event epevt;
memset( &epevt, 0, sizeof( struct epoll_event ) );
epevt.data.u64 = 0;
epevt.data.fd = fd;
epevt.events = 0;
(syscall(__NR_epoll_ctl, m_epfd, EPOLL_CTL_DEL, fd, &epevt ));
//LOG_WARN(( "[%d] Remove looping fd: %d, event: %d\n", getpid(), fd, p->events ));
++s_problems;
}
}
else if ( s_loop_count >= 20 )
{
//LOG_WARN(( "Looping fd: %d, event: %d\n", fd, p->events ));
assert( p->events );
problem_detected = 0;
}
}
}
++p;
}
p = m_pResults;
while( p < pEnd )
{
int fd = p->data.fd;
if ( fd != -1 )
{
EventReactor * pReactor = m_reactorIndex.get( fd );
if ( pReactor && (pReactor->getAssignedRevent() == (int)p->events ) )
{
if ( p->events & POLLHUP )
pReactor->incHupCounter();
pReactor->handleEvents( p->events );
}
}
++p;
}
if ( !problem_detected && s_loop_count )
{
s_loop_fd = -1;
s_loop_count = 0;
}
memset( m_pResults, 0, sizeof( struct epoll_event) * ret );
return ret;
}
