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CVS log for src/sys/kern/uipc_socket.c

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Default branch: MAIN
Current tag: nick-hppapmap-base


Revision 1.188 / (download) - annotate - [select for diffs], Sat Apr 4 10:12:51 2009 UTC (5 years ago) by ad
Branch: MAIN
CVS Tags: nick-hppapmap-base4, nick-hppapmap-base3, nick-hppapmap-base
Changes since 1.187: +18 -4 lines
Diff to previous 1.187 (colored)

Add fileops::fo_drain(), to be called from fd_close() when there is more
than one active reference to a file descriptor. It should dislodge threads
sleeping while holding a reference to the descriptor. Implemented only for
sockets but should be extended to pipes, fifos, etc.

Fixes the case of a multithreaded process doing something like the
following, which would have hung until the process got a signal.

thr0	accept(fd, ...)
thr1	close(fd)

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