Initial commit of eigent-main

package/@stackframe/stack-shared/dist/esm/utils/locks.js

@@ -0,0 +1,57 @@
+// src/utils/locks.tsx
+import { Semaphore } from "async-mutex";
+var ReadWriteLock = class {
+  constructor() {
+    this.semaphore = new Semaphore(1);
+    this.readers = 0;
+    this.readersMutex = new Semaphore(1);
+  }
+  async withReadLock(callback) {
+    await this._acquireReadLock();
+    try {
+      return await callback();
+    } finally {
+      await this._releaseReadLock();
+    }
+  }
+  async withWriteLock(callback) {
+    await this._acquireWriteLock();
+    try {
+      return await callback();
+    } finally {
+      await this._releaseWriteLock();
+    }
+  }
+  async _acquireReadLock() {
+    await this.readersMutex.acquire();
+    try {
+      this.readers += 1;
+      if (this.readers === 1) {
+        await this.semaphore.acquire();
+      }
+    } finally {
+      this.readersMutex.release();
+    }
+  }
+  async _releaseReadLock() {
+    await this.readersMutex.acquire();
+    try {
+      this.readers -= 1;
+      if (this.readers === 0) {
+        this.semaphore.release();
+      }
+    } finally {
+      this.readersMutex.release();
+    }
+  }
+  async _acquireWriteLock() {
+    await this.semaphore.acquire();
+  }
+  async _releaseWriteLock() {
+    this.semaphore.release();
+  }
+};
+export {
+  ReadWriteLock
+};
+//# sourceMappingURL=locks.js.map