signal(7) and restartable syscalls

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Hi

In current man page (version 3.11) there's no mention that  with
timeout set on sockets (SO_RCVTIMEO, SO_SNDTIMEO)
read, write,send,... aren't restartable.

from include/net/sock.h
/* Alas, with timeout socket operations are not restartable.
 * Compare this to poll().
 */

Didier
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