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4af1bba6d0
Reimplement uv.errname() as internal/util.getSystemErrorName() to avoid the memory leaks caused by unknown error codes and avoid calling into C++ for the error names. Also expose it as a public API for external use. PR-URL: https://github.com/nodejs/node/pull/18186 Refs: http://docs.libuv.org/en/v1.x/errors.html#c.uv_err_name Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
86 lines
3.0 KiB
C++
86 lines
3.0 KiB
C++
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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#include "uv.h"
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#include "node.h"
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#include "node_internals.h"
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#include "env-inl.h"
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namespace node {
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namespace {
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using v8::Array;
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using v8::Context;
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using v8::FunctionCallbackInfo;
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using v8::Integer;
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using v8::Isolate;
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using v8::Local;
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using v8::Map;
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using v8::Object;
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using v8::String;
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using v8::Value;
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// TODO(joyeecheung): deprecate this function in favor of
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// lib/util.getSystemErrorName()
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void ErrName(const FunctionCallbackInfo<Value>& args) {
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Environment* env = Environment::GetCurrent(args);
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int err = args[0]->Int32Value();
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CHECK_LT(err, 0);
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const char* name = uv_err_name(err);
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args.GetReturnValue().Set(OneByteString(env->isolate(), name));
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}
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void InitializeUV(Local<Object> target,
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Local<Value> unused,
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Local<Context> context) {
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Environment* env = Environment::GetCurrent(context);
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Isolate* isolate = env->isolate();
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target->Set(FIXED_ONE_BYTE_STRING(isolate, "errname"),
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env->NewFunctionTemplate(ErrName)->GetFunction());
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#define V(name, _) NODE_DEFINE_CONSTANT(target, UV_##name);
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UV_ERRNO_MAP(V)
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#undef V
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Local<Map> err_map = Map::New(isolate);
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#define V(name, msg) do { \
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Local<Array> arr = Array::New(isolate, 2); \
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arr->Set(0, OneByteString(isolate, #name)); \
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arr->Set(1, OneByteString(isolate, msg)); \
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err_map->Set(context, \
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Integer::New(isolate, UV_##name), \
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arr).ToLocalChecked(); \
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} while (0);
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UV_ERRNO_MAP(V)
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#undef V
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target->Set(context, FIXED_ONE_BYTE_STRING(isolate, "errmap"),
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err_map).FromJust();
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}
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} // anonymous namespace
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} // namespace node
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NODE_BUILTIN_MODULE_CONTEXT_AWARE(uv, node::InitializeUV)
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