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authorMarc Hoersken <info@marc-hoersken.de>2020-08-31 10:49:20 +0200
committerMarc Hoersken <info@marc-hoersken.de>2020-09-02 16:26:20 +0200
commit20d74b7393d5aedcc9d54c92b8ed56cae473d04e (patch)
tree32c3f0beb082b68dd5bc93574984e6e1d1c916f6 /lib/select.c
parentce56cc8b1118ea7ed0a3c91924224013e1977038 (diff)
downloadcurl-20d74b7393d5aedcc9d54c92b8ed56cae473d04e.tar.gz
select: align poll emulation to return all relevant events
The poll emulation via select already consumes POLLRDNORM, POLLWRNORM and POLLRDBAND as input events. Therefore it should also return them as output events if signaled. Also fix indentation in input event handling block. Assisted-by: Jay Satiro Reviewed-by: Daniel Stenberg Replaces #5852 Closes #5883
Diffstat (limited to 'lib/select.c')
-rw-r--r--lib/select.c28
1 files changed, 20 insertions, 8 deletions
diff --git a/lib/select.c b/lib/select.c
index 5bb6d12cc..917133b72 100644
--- a/lib/select.c
+++ b/lib/select.c
@@ -378,7 +378,7 @@ int Curl_poll(struct pollfd ufds[], unsigned int nfds, timediff_t timeout_ms)
if(ufds[i].revents & POLLHUP)
ufds[i].revents |= POLLIN;
if(ufds[i].revents & POLLERR)
- ufds[i].revents |= (POLLIN|POLLOUT);
+ ufds[i].revents |= POLLIN|POLLOUT;
}
#else /* HAVE_POLL_FINE */
@@ -394,7 +394,7 @@ int Curl_poll(struct pollfd ufds[], unsigned int nfds, timediff_t timeout_ms)
continue;
VERIFY_SOCK(ufds[i].fd);
if(ufds[i].events & (POLLIN|POLLOUT|POLLPRI|
- POLLRDNORM|POLLWRNORM|POLLRDBAND)) {
+ POLLRDNORM|POLLWRNORM|POLLRDBAND)) {
if(ufds[i].fd > maxfd)
maxfd = ufds[i].fd;
if(ufds[i].events & (POLLRDNORM|POLLIN))
@@ -421,12 +421,24 @@ int Curl_poll(struct pollfd ufds[], unsigned int nfds, timediff_t timeout_ms)
ufds[i].revents = 0;
if(ufds[i].fd == CURL_SOCKET_BAD)
continue;
- if(FD_ISSET(ufds[i].fd, &fds_read))
- ufds[i].revents |= POLLIN;
- if(FD_ISSET(ufds[i].fd, &fds_write))
- ufds[i].revents |= POLLOUT;
- if(FD_ISSET(ufds[i].fd, &fds_err))
- ufds[i].revents |= POLLPRI;
+ if(FD_ISSET(ufds[i].fd, &fds_read)) {
+ if(ufds[i].events & POLLRDNORM)
+ ufds[i].revents |= POLLRDNORM;
+ if(ufds[i].events & POLLIN)
+ ufds[i].revents |= POLLIN;
+ }
+ if(FD_ISSET(ufds[i].fd, &fds_write)) {
+ if(ufds[i].events & POLLWRNORM)
+ ufds[i].revents |= POLLWRNORM;
+ if(ufds[i].events & POLLOUT)
+ ufds[i].revents |= POLLOUT;
+ }
+ if(FD_ISSET(ufds[i].fd, &fds_err)) {
+ if(ufds[i].events & POLLRDBAND)
+ ufds[i].revents |= POLLRDBAND;
+ if(ufds[i].events & POLLPRI)
+ ufds[i].revents |= POLLPRI;
+ }
if(ufds[i].revents != 0)
r++;
}