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1 files changed, 41 insertions, 0 deletions

diff --git a/desktop/node_modules/dir-compare/build/src/fs/BufferPool.js b/desktop/node_modules/dir-compare/build/src/fs/BufferPool.js
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+++ b/desktop/node_modules/dir-compare/build/src/fs/BufferPool.js
@@ -0,0 +1,41 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.BufferPool = void 0;
+/**
+ * Collection of buffers to be shared between async processes.
+ * Avoids allocating buffers each time async process starts.
+ */
+class BufferPool {
+    /**
+     *
+     * @param bufSize Size of each buffer.
+     * @param bufNo Number of buffers. Caller has to make sure no more than bufNo async processes run simultaneously.
+     */
+    constructor(bufSize, bufNo) {
+        this.bufSize = bufSize;
+        this.bufNo = bufNo;
+        this.bufferPool = [];
+        for (let i = 0; i < this.bufNo; i++) {
+            this.bufferPool.push({
+                buf1: Buffer.alloc(this.bufSize),
+                buf2: Buffer.alloc(this.bufSize),
+                busy: false
+            });
+        }
+    }
+    allocateBuffers() {
+        for (let j = 0; j < this.bufNo; j++) {
+            const bufferPair = this.bufferPool[j];
+            if (!bufferPair.busy) {
+                bufferPair.busy = true;
+                return bufferPair;
+            }
+        }
+        throw new Error('Async buffer limit reached');
+    }
+    freeBuffers(bufferPair) {
+        bufferPair.busy = false;
+    }
+}
+exports.BufferPool = BufferPool;
+//# sourceMappingURL=BufferPool.js.map
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