/
ugly.js
86 lines (71 loc) · 1.87 KB
/
ugly.js
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var
childProcess = require('child_process'),
path = require('path');
exports.createClient = function(options) {
options = (options || {});
options.worker = options.worker || __dirname+'/worker/php.php';
var
client = {
onClose: function() {},
},
worker = childProcess.spawn(options.worker),
callbacks = [],
buffer = '',
parse = function(chunk) {
buffer += (chunk || '');
var
offset,
response,
callback;
while ((offset = buffer.indexOf("\n")) >= 0) {
response = buffer.substr(0, offset);
// puts('< '+response);
callback = callbacks.shift();
if (callback === undefined) {
throw new Error('unexpected message: '+buffer);
}
try {
response = JSON.parse(response);
} catch (e) {
e.response = response;
callback(e);
return;
}
if (response.error) {
var err = new Error();
for (var key in response) {
err[key] = response[key];
}
callback(err);
} else {
callback(null, response);
}
buffer = buffer.substr(offset+1);
}
};
worker.stdout.setEncoding('utf8');
worker.stdout.addListener('data', parse);
worker.stderr.setEncoding('utf8');
worker.stderr.addListener('data', parse);
worker
.addListener('exit', function(code) {
client.onClose(code);
});
client.invoke = function() {
var
args = Array.prototype.slice.call(arguments),
message,
callback = false;
if ((typeof args[args.length - 1]) == 'function') {
callback = args.pop();
}
callbacks.push(callback);
message = JSON.stringify(args)+"\n";
// puts('> '+message);
worker.stdin.write(message, 'utf8');
};
client.close = function() {
worker.kill();
};
return client;
};