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metamask-extension/.yarn/patches/await-semaphore-npm-0.1.3-b7a0001fab.patch
Brad Decker 6d1170f06c
upgrade yarn to version 3 (#16232)
Co-authored-by: Mark Stacey <markjstacey@gmail.com>
Co-authored-by: ricky <ricky.miller@gmail.com>
Co-authored-by: Elliot Winkler <elliot.winkler@gmail.com>
Co-authored-by: legobeat <109787230+legobeat@users.noreply.github.com>
Co-authored-by: legobt <6wbvkn0j@anonaddy.me>
Co-authored-by: Pedro Figueiredo <pedro.figueiredo@consensys.net>
2022-12-08 10:38:04 -06:00

69 lines
1.7 KiB
Diff

diff --git a/index.ts b/index.ts
deleted file mode 100644
index 69ce92ac081f182b5123409021e1b1028255c7f3..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 100644
--- a/index.ts
+++ /dev/null
@@ -1,62 +0,0 @@
-export class Semaphore {
- private tasks: (() => void)[] = [];
- count: number;
-
- constructor(count: number) {
- this.count = count;
- }
-
- private sched() {
- if (this.count > 0 && this.tasks.length > 0) {
- this.count--;
- let next = this.tasks.shift();
- if (next === undefined) {
- throw "Unexpected undefined value in tasks list";
- }
-
- next();
- }
- }
-
- public acquire() {
- return new Promise<() => void>((res, rej) => {
- var task = () => {
- var released = false;
- res(() => {
- if (!released) {
- released = true;
- this.count++;
- this.sched();
- }
- });
- };
- this.tasks.push(task);
- if (process && process.nextTick) {
- process.nextTick(this.sched.bind(this));
- } else {
- setImmediate(this.sched.bind(this));
- }
- });
- }
-
- public use<T>(f: () => Promise<T>) {
- return this.acquire()
- .then(release => {
- return f()
- .then((res) => {
- release();
- return res;
- })
- .catch((err) => {
- release();
- throw err;
- });
- });
- }
-}
-
-export class Mutex extends Semaphore {
- constructor() {
- super(1);
- }
-}