aboutsummaryrefslogtreecommitdiff
path: root/node_modules/immediate/lib/messageChannel.js
diff options
context:
space:
mode:
Diffstat (limited to 'node_modules/immediate/lib/messageChannel.js')
-rw-r--r--node_modules/immediate/lib/messageChannel.js18
1 files changed, 18 insertions, 0 deletions
diff --git a/node_modules/immediate/lib/messageChannel.js b/node_modules/immediate/lib/messageChannel.js
new file mode 100644
index 00000000..a6ce360b
--- /dev/null
+++ b/node_modules/immediate/lib/messageChannel.js
@@ -0,0 +1,18 @@
+'use strict';
+
+exports.test = function () {
+ if (global.setImmediate) {
+ // we can only get here in IE10
+ // which doesn't handel postMessage well
+ return false;
+ }
+ return typeof global.MessageChannel !== 'undefined';
+};
+
+exports.install = function (func) {
+ var channel = new global.MessageChannel();
+ channel.port1.onmessage = func;
+ return function () {
+ channel.port2.postMessage(0);
+ };
+}; \ No newline at end of file