[FFmpeg-cvslog] avformat/libsrt: poll for error conditions as well

[Marton Balint]

ffmpeg | branch: master | Marton Balint <cus at passwd.hu> | Fri Feb 14 23:24:29 2020 +0100| [c112fae6603f8be33cf1ee2ae390ec939812f473] | committer: Marton Balint

avformat/libsrt: poll for error conditions as well

Signed-off-by: Marton Balint <cus at passwd.hu>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c112fae6603f8be33cf1ee2ae390ec939812f473
---

 libavformat/libsrt.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/libavformat/libsrt.c b/libavformat/libsrt.c
index 1ab6c1ddb3..38d047ca88 100644
--- a/libavformat/libsrt.c
+++ b/libavformat/libsrt.c
@@ -164,16 +164,17 @@ static int libsrt_socket_nonblock(int socket, int enable)
 
 static int libsrt_network_wait_fd(URLContext *h, int eid, int fd, int write)
 {
-    int ret, len = 1;
-    int modes = write ? SRT_EPOLL_OUT : SRT_EPOLL_IN;
+    int ret, len = 1, errlen = 1;
+    int modes = SRT_EPOLL_ERR | (write ? SRT_EPOLL_OUT : SRT_EPOLL_IN);
     SRTSOCKET ready[1];
+    SRTSOCKET error[1];
 
     if (srt_epoll_add_usock(eid, fd, &modes) < 0)
         return libsrt_neterrno(h);
     if (write) {
-        ret = srt_epoll_wait(eid, 0, 0, ready, &len, POLLING_TIME, 0, 0, 0, 0);
+        ret = srt_epoll_wait(eid, error, &errlen, ready, &len, POLLING_TIME, 0, 0, 0, 0);
     } else {
-        ret = srt_epoll_wait(eid, ready, &len, 0, 0, POLLING_TIME, 0, 0, 0, 0);
+        ret = srt_epoll_wait(eid, ready, &len, error, &errlen, POLLING_TIME, 0, 0, 0, 0);
     }
     if (ret < 0) {
         if (srt_getlasterror(NULL) == SRT_ETIMEOUT)
@@ -181,7 +182,7 @@ static int libsrt_network_wait_fd(URLContext *h, int eid, int fd, int write)
         else
             ret = libsrt_neterrno(h);
     } else {
-        ret = 0;
+        ret = errlen ? AVERROR(EIO) : 0;
     }
     if (srt_epoll_remove_usock(eid, fd) < 0)
         return libsrt_neterrno(h);