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authorruki <waruqi@gmail.com>2018-11-08 00:38:48 +0800
committerruki <waruqi@gmail.com>2018-11-07 21:53:09 +0800
commit26105034da4fcce7ac883c899d781f016559310d (patch)
treec459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/q/queue.js
parent2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff)
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Diffstat (limited to 'node_modules/q/queue.js')
-rw-r--r--node_modules/q/queue.js35
1 files changed, 35 insertions, 0 deletions
diff --git a/node_modules/q/queue.js b/node_modules/q/queue.js
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--- /dev/null
+++ b/node_modules/q/queue.js
@@ -0,0 +1,35 @@
+
+var Q = require("./q");
+
+module.exports = Queue;
+function Queue() {
+ var ends = Q.defer();
+ var closed = Q.defer();
+ return {
+ put: function (value) {
+ var next = Q.defer();
+ ends.resolve({
+ head: value,
+ tail: next.promise
+ });
+ ends.resolve = next.resolve;
+ },
+ get: function () {
+ var result = ends.promise.get("head");
+ ends.promise = ends.promise.get("tail");
+ return result.fail(function (error) {
+ closed.resolve(error);
+ throw error;
+ });
+ },
+ closed: closed.promise,
+ close: function (error) {
+ error = error || new Error("Can't get value from closed queue");
+ var end = {head: Q.reject(error)};
+ end.tail = end;
+ ends.resolve(end);
+ return closed.promise;
+ }
+ };
+}
+