diff options
Diffstat (limited to 'doc/man/flow_read.3')
| -rw-r--r-- | doc/man/flow_read.3 | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/man/flow_read.3 b/doc/man/flow_read.3 index 96f76766..0110d0a2 100644 --- a/doc/man/flow_read.3 +++ b/doc/man/flow_read.3 @@ -30,7 +30,11 @@ from the supplied buffer \fIbuf\fR to the flow specified by \fIfd\fR. .SH RETURN VALUE On success, \fBflow_read\fR() returns the number of bytes read. On -failure, a negative value indicating the error will be returned. +failure, a negative value indicating the error will be returned. If +the number of bytes read equals count, a subsequent call to +\fBflow_read\fR() should be performed to check if there were more +bytes to read. This call to \fBflow_read\fR will return 0 if there +was no more data and mark the end of the datagram. On success, \fBflow_write\fR() returns 0. On failure, a negative value indicating the error will be returned. Passing a NULL pointer for |