Messages in this thread | | | Date | Thu, 6 Sep 2007 09:09:50 -0700 | From | Randy Dunlap <> | Subject | Re: Stray nulls when reading from AF_UNIX sockets |
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On Thu, 06 Sep 2007 17:48:07 +0200 Anders Blomdell wrote:
> Hi, > > With recent kernels (2.6.22.x), we are experiencing that random null characters > are read by our mySQL server (i.e. the number of bytes read by the server is > larger than the number of bytes written). I'm currently investigating the > problem (that occurs every 1-35 hours on a loaded system). A current suspect is > the following code in net/unix/af_unix.c: > > static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock, > struct msghdr *msg, size_t size, > int flags) > { > ... > return copied ? : err; > } > > Shouldn't this read: > > return copied ? copied : err; > > Or am I missing something? > > Please CC me personally.
It's (?:) a gcc extension. See
http://gcc.gnu.org/onlinedocs/gcc-4.2.1/gcc/Conditionals.html#Conditionals
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