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try to make devpoll work again; i dont have access to a machine

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svn:r1017
This commit is contained in:
Niels Provos 2009-01-17 07:50:34 +00:00
parent 5e796901c1
commit fed2fd0944
1 changed files with 14 additions and 26 deletions
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40
devpoll.c
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@ -168,7 +168,6 @@ devpoll_dispatch(struct event_base *base, struct timeval *tv)
struct devpollop *devpollop = base->evbase;
struct pollfd *events = devpollop->events;
struct dvpoll dvp;
struct evdevpoll *evdp;
int i, res, timeout = -1;
if (devpollop->nchanges)
@ -200,22 +199,16 @@ devpoll_dispatch(struct event_base *base, struct timeval *tv)
for (i = 0; i < res; i++) {
int which = 0;
int what = events[i].revents;
struct event *evread = NULL, *evwrite = NULL;
if (what & POLLHUP)
what |= POLLIN | POLLOUT;
else if (what & POLLERR)
what |= POLLIN | POLLOUT;
if (what & POLLIN) {
evread = evdp->evread;
if (what & POLLIN)
which |= EV_READ;
}
if (what & POLLOUT) {
evwrite = evdp->evwrite;
if (what & POLLOUT)
which |= EV_WRITE;
}
if (!which)
continue;
@ -232,8 +225,7 @@ static int
devpoll_add(struct event_base *base, int fd, short old, short events, void *p)
{
struct devpollop *devpollop = base->evbase;
struct evdevpoll *evdp;
int events;
int res;
(void)p;
/*
@ -243,13 +235,13 @@ devpoll_add(struct event_base *base, int fd, short old, short events, void *p)
* that it has cached for the fd.
*/
events = 0;
res = 0;
if (events & EV_READ)
events |= POLLIN;
res |= POLLIN;
if (events & EV_WRITE)
events |= POLLOUT;
res |= POLLOUT;
if (devpoll_queue(devpollop, fd, events) != 0)
if (devpoll_queue(devpollop, fd, res) != 0)
return(-1);
return (0);
@ -259,16 +251,14 @@ static int
devpoll_del(struct event_base *base, int fd, short old, short events, void *p)
{
struct devpollop *devpollop = base->evbase;
struct evdevpoll *evdp;
int events;
int needwritedelete = 1, needreaddelete = 1;
int res;
(void)p;
events = 0;
res = 0;
if (events & EV_READ)
events |= POLLIN;
res |= POLLIN;
if (events & EV_WRITE)
events |= POLLOUT;
res |= POLLOUT;
/*
* The only way to remove an fd from the /dev/poll monitored set is
@ -280,20 +270,18 @@ devpoll_del(struct event_base *base, int fd, short old, short events, void *p)
if (devpoll_queue(devpollop, fd, POLLREMOVE) != 0)
return(-1);
if ((events & (POLLIN|POLLOUT)) != (POLLIN|POLLOUT)) {
if ((res & (POLLIN|POLLOUT)) != (POLLIN|POLLOUT)) {
/*
* We're not deleting all events, so we must resubmit the
* event that we are still interested in if one exists.
*/
if ((events & POLLIN) && (old & EV_WRITE)) {
if ((res & POLLIN) && (old & EV_WRITE)) {
/* Deleting read, still care about write */
devpoll_queue(devpollop, fd, POLLOUT);
needwritedelete = 0;
} else if ((events & POLLOUT) && (old & EV_READ)) {
} else if ((res & POLLOUT) && (old & EV_READ)) {
/* Deleting write, still care about read */
devpoll_queue(devpollop, fd, POLLIN);
needreaddelete = 0;
}
}