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multi_wait: fix skipping to populate revents for extra_fds

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On Windows revents was not populated for extra_fds if
multi_wait had to wait due to the Curl_poll pre-check
not signalling any readiness. This commit fixes that.

Reviewed-by: Marcel Raad
Reviewed-by: Jay Satiro

Closes #9361
This commit is contained in:
Marc Hoersken 2022-07-25 22:29:27 +02:00
parent 52484bf383
commit a71fe41d2f
No known key found for this signature in database
GPG Key ID: 61E03CBED7BC859E
1 changed files with 6 additions and 3 deletions
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9
lib/multi.c
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@ -1366,8 +1366,9 @@ static CURLMcode multi_wait(struct Curl_multi *multi,
unsigned r = ufds[curlfds + i].revents;
unsigned short mask = 0;
#ifdef USE_WINSOCK
curl_socket_t s = extra_fds[i].fd;
wsa_events.lNetworkEvents = 0;
if(WSAEnumNetworkEvents(extra_fds[i].fd, NULL, &wsa_events) == 0) {
if(WSAEnumNetworkEvents(s, NULL, &wsa_events) == 0) {
if(wsa_events.lNetworkEvents & (FD_READ|FD_ACCEPT|FD_CLOSE))
mask |= CURL_WAIT_POLLIN;
if(wsa_events.lNetworkEvents & (FD_WRITE|FD_CONNECT|FD_CLOSE))
@ -1377,9 +1378,11 @@ static CURLMcode multi_wait(struct Curl_multi *multi,
if(ret && pollrc <= 0 && wsa_events.lNetworkEvents)
retcode++;
}
WSAEventSelect(extra_fds[i].fd, multi->wsa_event, 0);
if(pollrc <= 0)
WSAEventSelect(s, multi->wsa_event, 0);
if(pollrc <= 0) {
extra_fds[i].revents = mask;
continue;
}
#endif
if(r & POLLIN)
mask |= CURL_WAIT_POLLIN;