Commits on Apr 13, 2016

1. process: add process.gracefulExit() …

   Provides a deferrable, async alternative to process.exit(). Whereas
   process.exit() exits the process as quickly as possible,
   process.gracefulExit(), by default, will not exit until the next
   tick of the event loop (scheduled by setImmediate). A callback
   function can be provided to customize the exit process and invoke
   the actual exit when desired or appropriate to do so.
   
   Exits with code `1` on the next tick of the event loop:
   
   ```js
   process.gracefulExit(1);
   ```
   
   Exits with code '0' on `process.nextTick()`:
   
   ```js
   process.gracefulExit(1, (code, exit) => {
     console.log('exiting gracefully on next tick');
     process.nextTick(() => exit(0));
   });
   ```
   
   Immediately exit if the graceful exit is not completed within 10 seconds:
   
   ```js
   process.gracefulExit(0, 10000, (code, exit) => {
     // Wait, do nothing. don't call exit.
   });
   ```
   
   The implementation is such that `process.exit()` is still called, so
   process.on('exit') handlers will be invoked.
   
   In cluster/child-processes with IPC, this does *not* take the place
   of process.disconnect().

   

   jasnell committed Apr 13, 2016
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