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wangweipeng pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/incubator-fury.git
The following commit(s) were added to refs/heads/main by this push:
new 25d45146 feat(JavaScript): create zero-copy buffer when convert (#1386)
25d45146 is described below
commit 25d451461ed904b8b0110cb8f408e404499f10d0
Author: 野声 <[email protected]>
AuthorDate: Tue Feb 27 18:21:33 2024 +0800
feat(JavaScript): create zero-copy buffer when convert (#1386)
---
javascript/packages/fury/lib/fury.ts | 3 ++-
javascript/packages/fury/lib/platformBuffer.ts | 4 +++-
javascript/packages/fury/lib/reader/index.ts | 2 +-
javascript/packages/fury/package.json | 2 +-
4 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/javascript/packages/fury/lib/fury.ts
b/javascript/packages/fury/lib/fury.ts
index 1ea7d26c..aa53e13a 100644
--- a/javascript/packages/fury/lib/fury.ts
+++ b/javascript/packages/fury/lib/fury.ts
@@ -78,11 +78,12 @@ export default class {
if (!isCrossLanguage) {
throw new Error("support crosslanguage mode only");
}
- this.binaryReader.uint8(); // skip language
const isOutOfBandEnabled = (bitmap & ConfigFlags.isOutOfBandFlag) ===
ConfigFlags.isOutOfBandFlag;
if (isOutOfBandEnabled) {
throw new Error("outofband mode is not supported now");
}
+
+ this.binaryReader.uint8(); // skip language
this.binaryReader.int32(); // native object offset. should skip.
javascript support cross mode only
this.binaryReader.int32(); // native object size. should skip.
return serializer.read();
diff --git a/javascript/packages/fury/lib/platformBuffer.ts
b/javascript/packages/fury/lib/platformBuffer.ts
index fb95f456..b28df55b 100644
--- a/javascript/packages/fury/lib/platformBuffer.ts
+++ b/javascript/packages/fury/lib/platformBuffer.ts
@@ -140,7 +140,9 @@ export class BrowserBuffer extends Uint8Array implements
PlatformBuffer {
export const fromUint8Array = hasBuffer
? (ab: Buffer | Uint8Array) => {
if (!Buffer.isBuffer(ab)) {
- return (Buffer.from(ab) as unknown as PlatformBuffer);
+ //
https://nodejs.org/docs/latest/api/buffer.html#static-method-bufferfromarraybuffer-byteoffset-length
+ // Create a zero-copy Buffer wrapper around the ArrayBuffer pointed to
by the Uint8Array
+ return (Buffer.from(ab.buffer, ab.byteOffset, ab.byteLength) as
unknown as PlatformBuffer);
} else {
return ab as unknown as PlatformBuffer;
}
diff --git a/javascript/packages/fury/lib/reader/index.ts
b/javascript/packages/fury/lib/reader/index.ts
index ef308e79..e0df6000 100644
--- a/javascript/packages/fury/lib/reader/index.ts
+++ b/javascript/packages/fury/lib/reader/index.ts
@@ -35,7 +35,7 @@ export const BinaryReader = (config: Config) => {
function reset(ab: Uint8Array) {
buffer = fromUint8Array(ab);
byteLength = buffer.byteLength;
- dataView = new DataView(buffer.buffer, buffer.byteOffset);
+ dataView = new DataView(buffer.buffer, buffer.byteOffset, byteLength);
if (sliceStringEnable) {
bigString = buffer.toString("latin1", 0, byteLength);
}
diff --git a/javascript/packages/fury/package.json
b/javascript/packages/fury/package.json
index 92af2bc3..c0b79053 100644
--- a/javascript/packages/fury/package.json
+++ b/javascript/packages/fury/package.json
@@ -1,6 +1,6 @@
{
"name": "@furyjs/fury",
- "version": "0.5.8-beta",
+ "version": "0.5.9-beta",
"description": "A blazing fast multi-language serialization framework
powered by jit and zero-copy",
"main": "dist/index.js",
"scripts": {
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