[FFmpeg-devel] [PATCH] UDP hangs with no input data
Sat Nov 15 23:11:54 CET 2008
"Kenan Gillet" <kenan.gillet at gmail.com> writes:
> On Fri, Nov 14, 2008 at 6:38 PM, Ronald S. Bultje <rsbultje at gmail.com> wrote:
>> On Fri, Nov 14, 2008 at 2:42 PM, elupus <elupus at ecce.se> wrote:
>>> On Thu, 13 Nov 2008 11:05:38 +0100, Jindrich Makovicka wrote:
>>> + len = recv(s->udp_fd, buf, size, MSG_DONTWAIT);
>>> Doubt this will work in mingw, don't think msg_dontwait is defined. Should
>>> probably also include a #ifndef msg_dontwait #define msg_dontwait 0 #endif
>>> in the win32 section in os_support.h
>> I also get a missing define on OSX 10.4... Not sure what header
>> normally contains this.
> I also have a missing define on OS 10.5.
> the define is in /usr/include/sys/socket.h but under #if:
> #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
> #define MSG_DONTWAIT 0x80 /* this message should be nonblocking */
MSG_DONTWAIT is not a standard flag, so we should not be using it.
The standard method is to set O_NONBLOCK on the socket using fcntl().
> I am not sure about the policy for OS specific #ifdef,
The policy is no.
mans at mansr.com
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