daohualiuxiang
/
node
mirror of https://github.com/nodejs/node.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

doc: clarify dgram socket.send() multi-buffer support 

Fixes: #5124
See: https://github.com/nodejs/node/pull/4374
PR-URL: https://github.com/nodejs/node/pull/5130
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
pull/5130/merge
Matteo Collina 2016-02-07 12:08:55 +01:00
parent eaa9e0e776
commit 76bc4c75bf
1 changed files with 11 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
doc/api/dgram.markdown
View File

@ -185,12 +185,12 @@ never have reason to call this.
If `multicastInterface` is not specified, the operating system will attempt to
drop membership on all valid interfaces.
### socket.send(buf, [offset, length,] port, address[, callback])
### socket.send(msg, [offset, length,] port, address[, callback])
* `buf` Buffer object, string, or an array of either. Message to be
* `msg` Buffer object, string, or an array of either. Message to be
sent.
* `offset` Integer. Offset in the buffer where the message starts.
* `length` Integer. Number of bytes in the message.
* `offset` Integer. Optional. Offset in the buffer where the message starts.
* `length` Integer. Optional. Number of bytes in the message.
* `port` Integer. Destination port.
* `address` String. Destination hostname or IP address.
* `callback` Function. Called when the message has been sent. Optional.
@ -198,11 +198,15 @@ drop membership on all valid interfaces.
Broadcasts a datagram on the socket. The destination `port` and `address` must
be specified.
The `buf` argument is a [`Buffer`] object containing the message. The `offset`
and `length` specify the offset within the `Buffer` where the message begins
and the number of bytes in the message, respectively. With messages that
The `msg` argument containins the message to be sent.
Depending on its type, different behavior can apply. If `msg` is a `Buffer`,
the `offset` and `length` specify the offset within the `Buffer` where the
message begins and the number of bytes in the message, respectively.
If `msg` is a `String`, then it is automatically converted to a `Buffer`
with `'utf8'` enecoding. With messages that
contain multi-byte characters, `offset` and `length` will be calculated with
respect to [byte length][] and not the character position.
If `msg` is an array, `offset` and `length` must not be specified.
The `address` argument is a string. If the value of `address` is a host name,
DNS will be used to resolve the address of the host. If the `address` is not