Files
node/src/node_stat_watcher.h
T
Joyee Cheung 897f7b6c6b fs: improve errors in watchFile and unwatchFile
- Check if the watcher is active in JS land before
  invoking the binding, act as a noop if the state of
  the watcher does not match the expectation. This
  avoids firing 'stop' when the watcher is already
  stopped.
- Update comments, validate more arguments and
  the type of the handle.
- Handle the errors from uv_fs_poll_start
- Create an `IsActive` helper method on StatWatcher

PR-URL: https://github.com/nodejs/node/pull/19345
Refs: https://github.com/nodejs/node/pull/19089
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
2018-03-19 07:40:47 +08:00

67 lines
2.3 KiB
C++

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
#ifndef SRC_NODE_STAT_WATCHER_H_
#define SRC_NODE_STAT_WATCHER_H_
#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#include "node.h"
#include "async_wrap.h"
#include "env.h"
#include "uv.h"
#include "v8.h"
namespace node {
class StatWatcher : public AsyncWrap {
public:
~StatWatcher() override;
static void Initialize(Environment* env, v8::Local<v8::Object> target);
protected:
StatWatcher(Environment* env, v8::Local<v8::Object> wrap);
static void New(const v8::FunctionCallbackInfo<v8::Value>& args);
static void Start(const v8::FunctionCallbackInfo<v8::Value>& args);
static void Stop(const v8::FunctionCallbackInfo<v8::Value>& args);
static void IsActive(const v8::FunctionCallbackInfo<v8::Value>& args);
size_t self_size() const override { return sizeof(*this); }
private:
static void Callback(uv_fs_poll_t* handle,
int status,
const uv_stat_t* prev,
const uv_stat_t* curr);
void Stop();
bool IsActive();
uv_fs_poll_t* watcher_;
};
} // namespace node
#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#endif // SRC_NODE_STAT_WATCHER_H_