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check for interrupt when receiving from socket 

Originally committed as revision 15824 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Jindřich Makovička 2008-11-14 19:33:22 +00:00
parent 9e16439287
commit 7d0842992a
1 changed files with 18 additions and 1 deletions
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19
libavformat/udp.c
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@ -29,6 +29,9 @@
#include <unistd.h>
#include "network.h"
#include "os_support.h"
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#ifndef IPV6_ADD_MEMBERSHIP
#define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP
@ -449,9 +452,23 @@ static int udp_read(URLContext *h, uint8_t *buf, int size)
{
UDPContext *s = h->priv_data;
int len;
fd_set rfds;
int ret;
struct timeval tv;
for(;;) {
len = recv(s->udp_fd, buf, size, 0);
if (url_interrupt_cb())
return AVERROR(EINTR);
FD_ZERO(&rfds);
FD_SET(s->udp_fd, &rfds);
tv.tv_sec = 0;
tv.tv_usec = 100 * 1000;
ret = select(s->udp_fd + 1, &rfds, NULL, NULL, &tv);
if (ret < 0)
return AVERROR(EIO);
if (!(ret > 0 && FD_ISSET(s->udp_fd, &rfds)))
continue;
len = recv(s->udp_fd, buf, size, MSG_DONTWAIT);
if (len < 0) {
if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
ff_neterrno() != FF_NETERROR(EINTR))