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GeezerVison is showing github.com — node-api: add external buffer creation benchmark · nodejs/node@ddd24a6

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  • benchmark/napi/buffer
    • .gitignore
    • binding.cc
    • binding.gyp
    • index.js
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‎benchmark/napi/buffer/.gitignore‎

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+1Lines changed: 1 addition & 0 deletions
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build/
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‎benchmark/napi/buffer/binding.cc‎

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+85Lines changed: 85 additions & 0 deletions
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#include <node_api.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define NODE_API_CALL(call) \
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do { \
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napi_status status = call; \
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if (status != napi_ok) { \
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fprintf(stderr, #call " failed: %d\n", status); \
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abort(); \
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} \
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} while (0)
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#define ABORT_IF_FALSE(condition) \
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if (!(condition)) { \
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fprintf(stderr, #condition " failed\n"); \
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abort(); \
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}
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static void Finalize(node_api_basic_env env, void* data, void* hint) {
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delete[] static_cast<uint8_t*>(data);
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}
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static napi_value CreateExternalBuffer(napi_env env, napi_callback_info info) {
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napi_value argv[2], undefined, start, end;
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size_t argc = 2;
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int32_t n = 0;
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napi_valuetype val_type = napi_undefined;
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// Validate params and retrieve start and end function.
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NODE_API_CALL(napi_get_cb_info(env, info, &argc, argv, nullptr, nullptr));
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ABORT_IF_FALSE(argc == 2);
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NODE_API_CALL(napi_typeof(env, argv[0], &val_type));
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ABORT_IF_FALSE(val_type == napi_object);
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NODE_API_CALL(napi_typeof(env, argv[1], &val_type));
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ABORT_IF_FALSE(val_type == napi_number);
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NODE_API_CALL(napi_get_named_property(env, argv[0], "start", &start));
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NODE_API_CALL(napi_typeof(env, start, &val_type));
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ABORT_IF_FALSE(val_type == napi_function);
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NODE_API_CALL(napi_get_named_property(env, argv[0], "end", &end));
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NODE_API_CALL(napi_typeof(env, end, &val_type));
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ABORT_IF_FALSE(val_type == napi_function);
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NODE_API_CALL(napi_get_value_int32(env, argv[1], &n));
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NODE_API_CALL(napi_get_undefined(env, &undefined));
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constexpr uint32_t kBufferLen = 32;
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// Start the benchmark.
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napi_call_function(env, argv[0], start, 0, nullptr, nullptr);
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for (int32_t idx = 0; idx < n; idx++) {
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napi_handle_scope scope;
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uint8_t* buffer = new uint8_t[kBufferLen];
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napi_value jsbuffer;
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NODE_API_CALL(napi_open_handle_scope(env, &scope));
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NODE_API_CALL(napi_create_external_buffer(
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env, kBufferLen, buffer, Finalize, nullptr, &jsbuffer));
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NODE_API_CALL(napi_close_handle_scope(env, scope));
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}
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// Conclude the benchmark.
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napi_value end_argv[] = {argv[1]};
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NODE_API_CALL(napi_call_function(env, argv[0], end, 1, end_argv, nullptr));
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return undefined;
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}
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NAPI_MODULE_INIT() {
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napi_property_descriptor props[] = {
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{"createExternalBuffer",
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nullptr,
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CreateExternalBuffer,
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nullptr,
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nullptr,
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nullptr,
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static_cast<napi_property_attributes>(napi_writable | napi_configurable |
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napi_enumerable),
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nullptr},
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};
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NODE_API_CALL(napi_define_properties(
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env, exports, sizeof(props) / sizeof(*props), props));
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return exports;
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}
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‎benchmark/napi/buffer/binding.gyp‎

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+18Lines changed: 18 additions & 0 deletions
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{
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'targets': [
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{
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'target_name': 'binding',
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'sources': [ 'binding.cc' ],
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'defines': [
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'NAPI_EXPERIMENTAL'
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]
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},
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{
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'target_name': 'binding_node_api_v8',
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'sources': [ 'binding.cc' ],
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'defines': [
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'NAPI_VERSION=8'
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]
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}
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]
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}
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‎benchmark/napi/buffer/index.js‎

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+14Lines changed: 14 additions & 0 deletions
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'use strict';
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const common = require('../../common.js');
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const bench = common.createBenchmark(main, {
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n: [5e6],
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addon: ['binding', 'binding_node_api_v8'],
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implem: ['createExternalBuffer'],
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});
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function main({ n, implem, addon }) {
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const binding = require(`./build/${common.buildType}/${addon}`);
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binding[implem](bench, n);
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}

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