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var exitHandlers = []
var exitHandled = false;
/**
* Add a callback for closing programm bacause of any reason
*
* @param callback a sync function
*/
export function registerExitHandler(callback: () => void) {
exitHandlers.push(callback);
}
function exitHandler(options, err) {
if(exitHandled) {
return;
}
exitHandled = true;
for(let i = 0; i < exitHandlers.length; i++) {
exitHandlers[i]();
}
console.log('process exit');
process.exit();
}
//do something when app is closing
process.on('exit', exitHandler.bind(null,{cleanup:true}));
//catches ctrl+c event
process.on('SIGINT', exitHandler.bind(null, {exit:true}));
// catches "kill pid" (for example: nodemon restart)
process.on('SIGUSR1', exitHandler.bind(null, {exit:true}));
process.on('SIGUSR2', exitHandler.bind(null, {exit:true}));
//catches uncaught exceptions
process.on('uncaughtException', exitHandler.bind(null, {exit:true}));