Currently, libpq will wrap each send() call on the connection with
two system calls to mask SIGPIPEs. This results in 3 syscalls instead
of one, and (on Linux) can lead to high contention on the signal
mask locks in threaded apps.
We have a couple of other methods to avoid SIGPIPEs:
Marko,
optval seems used without initialization.
Dang, I was checking for the SO_NOSIGPIPE flag, and didn't check for
optval. New patch coming...
Cheers,
Jeremy
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