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Kelvin Sherlock 2012-05-13 19:47:02 -04:00
parent 7d93e491c1
commit 5851f2ff3e
1 changed files with 8 additions and 1 deletions
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9
mselect.c
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@ -85,7 +85,14 @@ boolean readable(Entry *e)
if (state == TCPSCLOSED || state > TCPSESTABLISHED)
return true;
/*
* The receive low-water mark is the amount of data that must be
* in the socket receive buffer for select to return "readable."
* It defaults to 1 for TCP, UDP, and SCTP sockets.
*
* - UNIX Network Programming Volume 1, Third Edition, page 169
*
*/
if (e->sr.srRcvQueued >= e->_RCVLOWAT)
return true;