【nodejs--勉強01】:nodeのchild_process

ちどり_process.fork(modulePath[,args][,options])

modulePath String The module to run in the child

args Aray List of string argments

options Object

cwd String Current working directory of the child process

env Object Evironment key-value pairs

execPath String Executable used to create the child process

execArgv Aray List of string argments passed to the executable

silent Boolean If true、stdin、stdout、and stder of the child will be piped to the parent、otherswise the will be inhersed from the parent、see the「pipe」and「inherit」options for spawdel.

uid Number Sets the user identity of the process.(See setuid(2).)

gid Number Sets the group identity of the process.(See setgid.)

ちどり_process.forkはあなたにサブプロセスを作成させ、親プロセスと通信することができます.
例:main.js

var cp = require('child_process');

var n = cp.fork(__dirname + '/sub.js');

n.on('message', function(m) {
  console.log('PARENT got message:', m);
});

n.send({ hello: 'child' });

sub.js

process.on('message', function(m) {
  console.log('CHILD got message:', m);
});

process.send({ hello: 'father' });

そしてnode main.jsを通じて、メール・jsを実行した結果、以下のようになりました.

CHILD got message: { hello: 'child' }
PARENT got message: { hello: 'father' }

ちどり_process.send(message[,sendenle])

message Object

sendHandle Handle object

例をあげて