nodejs/src/node_stat_watcher.h

// Copyright Joyent, Inc. and other Node contributors.
//
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// 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
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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#ifndef NODE_STAT_WATCHER_H_
#define NODE_STAT_WATCHER_H_

#include <node.h>
#include <uv-private/ev.h>

namespace node {

class StatWatcher : ObjectWrap {
 public:
  static void Initialize(v8::Handle<v8::Object> target);

 protected:
  static v8::Persistent<v8::FunctionTemplate> constructor_template;

  StatWatcher() : ObjectWrap() {
    persistent_ = false;
    path_ = NULL;
    ev_init(&watcher_, StatWatcher::Callback);
    watcher_.data = this;
  }

  ~StatWatcher() {
    Stop();
    assert(path_ == NULL);
  }

  static v8::Handle<v8::Value> New(const v8::Arguments& args);
  static v8::Handle<v8::Value> Start(const v8::Arguments& args);
  static v8::Handle<v8::Value> Stop(const v8::Arguments& args);

 private:
  static void Callback(EV_P_ ev_stat *watcher, int revents);

  void Stop();

  ev_stat watcher_;
  bool persistent_;
  char *path_;
};

}  // namespace node
#endif  // NODE_STAT_WATCHER_H_