reap_children.gitdiff

diff --git a/src/node.js b/src/node.js
index 69416d0..4ba4432 100644
--- a/src/node.js
+++ b/src/node.js
@@ -71,6 +71,8 @@ node.inherits = function () {
 };
 
 
+var childProcesses = [];
+
 process.createChildProcess = function (file, args, env) {
   var child = new process.ChildProcess();
   args = args || [];
@@ -85,9 +87,27 @@ process.createChildProcess = function (file, args, env) {
   // needs to be searched for the 'file' command if 'file' does not contain
   // a '/' character.
   child.spawn(file, args, envPairs);
+  var pid = child.pid;
+  childProcesses.push(child);
+  child.addListener("exit", function () {
+    for (var i = 0; i < childProcesses.length; i++) {
+      if (childProcesses[i].pid == pid) {
+        childProcesses.splice(i, 1);
+        return;
+      }
+    }
+  });
   return child;
 };
 
+// Reap child processes on SIGINT.
+var sigint = new process.SignalHandler(process['SIGINT']);
+sigint.addListener("signal", function () {
+  for (var i = 0; i < childProcesses.length; i++) {
+    child.kill();
+  }
+});
+
 process.assert = function (x, msg) {
   if (!(x)) throw new Error(msg || "assertion error");
 };