[FFmpeg-devel] [PATCH] Add a way to unblock tcp_open() when host is not responding.

[Thomas Guillem]

Hi,

The attached patch allow to unblock the thread calling tcp_open() when the host
is not responding.

The only way I found to cancel a blocking network operation (like tcp_open())
is to set a flag in an other thread, send a signal (SIGUSR1) to the main process
and have url_interrupt_cb() returning 1 if the previous flag is set.

But the previous solution didn't work when the thread was blocked in connect()
function (when the host is not responding). So I added a check to
url_interrupt_cb() when connect is interrupted by a signal in order to leave the
function.

Regards,
Thomas Guillem
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