Firebase Update

express-server/node_modules/@protobufjs/pool/index.js

@@ -0,0 +1,48 @@
+"use strict";
+module.exports = pool;
+
+/**
+ * An allocator as used by {@link util.pool}.
+ * @typedef PoolAllocator
+ * @type {function}
+ * @param {number} size Buffer size
+ * @returns {Uint8Array} Buffer
+ */
+
+/**
+ * A slicer as used by {@link util.pool}.
+ * @typedef PoolSlicer
+ * @type {function}
+ * @param {number} start Start offset
+ * @param {number} end End offset
+ * @returns {Uint8Array} Buffer slice
+ * @this {Uint8Array}
+ */
+
+/**
+ * A general purpose buffer pool.
+ * @memberof util
+ * @function
+ * @param {PoolAllocator} alloc Allocator
+ * @param {PoolSlicer} slice Slicer
+ * @param {number} [size=8192] Slab size
+ * @returns {PoolAllocator} Pooled allocator
+ */
+function pool(alloc, slice, size) {
+    var SIZE   = size || 8192;
+    var MAX    = SIZE >>> 1;
+    var slab   = null;
+    var offset = SIZE;
+    return function pool_alloc(size) {
+        if (size < 1 || size > MAX)
+            return alloc(size);
+        if (offset + size > SIZE) {
+            slab = alloc(SIZE);
+            offset = 0;
+        }
+        var buf = slice.call(slab, offset, offset += size);
+        if (offset & 7) // align to 32 bit
+            offset = (offset | 7) + 1;
+        return buf;
+    };
+}