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Relocate misplaced discussion of MSG_DONTWAIT.

This commit is contained in:
Michael Kerrisk 2006-01-13 07:56:23 +00:00
parent 28d88c1751
commit 62d4f1bd38
1 changed files with 10 additions and 10 deletions
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20
man2/recv.2
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@ -100,7 +100,7 @@ received from (see
.PP
If no messages are available at the socket, the receive calls wait for a
message to arrive, unless the socket is nonblocking (see
.BR fcntl (2))
.BR fcntl (2)),
in which case the value \-1 is returned and the external variable
.I errno
set to
@ -122,6 +122,15 @@ call is formed by
.IR OR 'ing
one or more of the following values:
.TP
.B MSG_DONTWAIT
Enables non-blocking operation; if the operation would block,
.B EAGAIN
is returned (this can also be enabled using the
.B O_NONBLOCK
with the
.B F_SETFL
.BR fcntl (2)).
.TP
.B MSG_ERRQUEUE
This flag
specifies that queued errors should be received from the socket error queue.
@ -334,15 +343,6 @@ is returned to indicate that expedited or out-of-band data were received.
.B MSG_ERRQUEUE
indicates that no data was received but an extended error from the socket
error queue.
.TP
.B MSG_DONTWAIT
Enables non-blocking operation; if the operation would block,
.B EAGAIN
is returned (this can also be enabled using the
.B O_NONBLOCK
with the
.B F_SETFL
.BR fcntl (2)).
.SH "RETURN VALUE"
These calls return the number of bytes received, or \-1
if an error occurred. The return value will be 0 when the