Experimental Physics and Industrial Control System
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On Jun 4, 2021, at 8:24 AM, Michael Davidsaver via Core-talk <core-talk at aps.anl.gov> wrote:
On 6/4/21 1:50 AM, Goetz Pfeiffer via Core-talk wrote:
We provide the "MSG_DONTWAIT" flag to the "sendto" call. By this, sendto never blocks even if internal
UDP buffers are full.
I have added a patch file for this to this e-mail.
I don't see any issue with this change, though I would format it as:
#ifndef MSG_DONTWAIT
# define MSG_DONTWAIT (0)
#endif
Both VxWorks 5.5 and MacOS define MSG_DONTWAIT in sys/socket.h but in the MacOSX SDK it's inside this conditional:
#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
#define MSG_DONTWAIT
0x80
/* this message should be nonblocking */
I doubt that _POSIX_C_SOURCE is defined so I think the flag should be available there, but Michael’s conditional is a good idea anyway.
- Andrew
--
Complexity comes for free, simplicity you have to work for.
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- Replies:
- RE: EPICS Base 3.15.8: Name resolution requests directed to non-existing hosts block CA Server Freddie Akeroyd - STFC UKRI via Core-talk
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- EPICS Base 3.15.8: Name resolution requests directed to non-existing hosts block CA Server Goetz Pfeiffer via Core-talk
- Re: EPICS Base 3.15.8: Name resolution requests directed to non-existing hosts block CA Server Michael Davidsaver via Core-talk
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ANJ, 05 Jun 2021 |
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