pad.pub0.org/node/errorhandling.js

53 lines
1.2 KiB
JavaScript

var db = require('./db/DB');
var os = require("os");
exports.onShutdown = false;
exports.gracefulShutdown = function(err) {
if(err && err.stack) {
console.error(err.stack);
} else if(err) {
console.error(err);
}
//ensure there is only one graceful shutdown running
if(exports.onShutdown) return;
exports.onShutdown = true;
console.log("graceful shutdown...");
//stop the http server
exports.app.close();
//do the db shutdown
db.db.doShutdown(function() {
console.log("db sucessfully closed.");
process.exit(0);
});
setTimeout(function(){
process.exit(1);
}, 3000);
}
exports.expressCreateServer = function (hook_name, args, cb) {
exports.app = args.app;
args.app.error(function(err, req, res, next){
res.send(500);
console.error(err.stack ? err.stack : err.toString());
exports.gracefulShutdown();
});
//connect graceful shutdown with sigint and uncaughtexception
if(os.type().indexOf("Windows") == -1) {
//sigint is so far not working on windows
//https://github.com/joyent/node/issues/1553
process.on('SIGINT', exports.gracefulShutdown);
}
process.on('uncaughtException', exports.gracefulShutdown);
}