[lkml]   [2008]   [Jan]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: AF_UNIX MSG_PEEK bug?
On Tue, 8 Jan 2008, Tom Spink wrote:

> Where in the code is the message length being sent across the socket?

In do_producer(), there are the following lines in the main loop:

/* Send random lengths of data */
messages[i].length = (rand() % MAXLEN) + sizeof(size_t);
iov[i].iov_len = messages[i].length;

The entire "struct sockmsg" is sent across the socket, so the first
size_t in each message contains the length of the entire message
(including the size_t). This size gets picked up at the
recv(...,MSG_PEEK) line in do_consumer().


Brent Casavant All music is folk music. I ain't never heard a horse sing a song.
Silicon Graphics, Inc. -- Louis Armstrong

 \ /
  Last update: 2008-01-09 00:21    [W:0.040 / U:3.648 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site