Method call

lib/code-caller.js:127–162

(file, fcn, args, options, callback)

    }

    call(file, fcn, args, options, callback) {
        debug(`enter call(), state: ${String(this.state)}, uuid: ${this.uuid}`);
        if (!this._checkState([CREATED, WAITING])) return callback(new Error('invalid PythonCaller state'));

        if (this.state == CREATED) {
            this._startChild();
        }

        const localOptions = _.defaults(options, {
            cwd: __dirname,
            paths: [],
            timeout: 20000, // FIXME: this number (equivalent to 20 seconds) should not have to be this high
        });
        const callData = {
            file, fcn, args,
            cwd: localOptions.cwd,
            paths: localOptions.paths,
        };
        const callDataString = JSON.stringify(callData);
        this.callback = callback;
        this.timeoutID = setTimeout(this._timeout.bind(this), localOptions.timeout);

        this.outputStdout = '';
        this.outputStderr = '';
        this.outputBoth = '';
        this.outputData = '';

        this.lastCallData = callData;

        this.child.stdin.write(callDataString);
        this.child.stdin.write('\n');

        this.state = IN_CALL;
        this._checkState();
        debug(`exit call(), state: ${String(this.state)}, uuid: ${this.uuid}`);
    }

    /*
     * @param {function} callback - A callback(err, success) function. If 'success' is false then this PythonCaller should be discarded and a new one created by the parent.