Use uniform watcher names

1 files changed, 109 insertions, 0 deletions

diff --git a/src/node_stat_watcher.cc b/src/node_stat_watcher.cc
new file mode 100644
index 0000000000..f5fd09c8bc
--- /dev/null
+++ b/src/node_stat_watcher.cc
@@ -0,0 +1,109 @@
+// Copyright 2009 Ryan Dahl <ry@tinyclouds.org>
+#include <node_stat_watcher.h>
+
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+
+namespace node {
+
+using namespace v8;
+
+Persistent<FunctionTemplate> StatWatcher::constructor_template;
+
+static Persistent<String> change_symbol;
+static Persistent<String> stop_symbol;
+
+void StatWatcher::Initialize(Handle<Object> target) {
+  HandleScope scope;
+
+  Local<FunctionTemplate> t = FunctionTemplate::New(StatWatcher::New);
+  constructor_template = Persistent<FunctionTemplate>::New(t);
+  constructor_template->Inherit(EventEmitter::constructor_template);
+  constructor_template->InstanceTemplate()->SetInternalFieldCount(1);
+  constructor_template->SetClassName(String::NewSymbol("StatWatcherWatcher"));
+
+  change_symbol = NODE_PSYMBOL("change");
+  stop_symbol = NODE_PSYMBOL("stop");
+
+  NODE_SET_PROTOTYPE_METHOD(constructor_template, "start", StatWatcher::Start);
+  NODE_SET_PROTOTYPE_METHOD(constructor_template, "stop", StatWatcher::Stop);
+
+  target->Set(String::NewSymbol("StatWatcherWatcher"), constructor_template->GetFunction());
+}
+
+
+void StatWatcher::Callback(EV_P_ ev_stat *watcher, int revents) {
+  assert(revents == EV_STAT);
+  StatWatcher *handler = static_cast<StatWatcher*>(watcher->data);
+  assert(watcher == &handler->watcher_);
+  HandleScope scope;
+  Handle<Value> argv[2];
+  argv[0] = Handle<Value>(BuildStatsObject(&watcher->attr));
+  argv[1] = Handle<Value>(BuildStatsObject(&watcher->prev));
+  handler->Emit(change_symbol, 2, argv);
+}
+
+
+Handle<Value> StatWatcher::New(const Arguments& args) {
+  HandleScope scope;
+  StatWatcher *s = new StatWatcher();
+  s->Wrap(args.Holder());
+  return args.This();
+}
+
+
+Handle<Value> StatWatcher::Start(const Arguments& args) {
+  HandleScope scope;
+
+  if (args.Length() < 1 || !args[0]->IsString()) {
+    return ThrowException(Exception::TypeError(String::New("Bad arguments")));
+  }
+
+  StatWatcher *handler = ObjectWrap::Unwrap<StatWatcher>(args.Holder());
+  String::Utf8Value path(args[0]->ToString());
+
+  assert(handler->path_ == NULL);
+  handler->path_ = strdup(*path);
+
+  ev_tstamp interval = 0.;
+  if (args[2]->IsInt32()) {
+    interval = NODE_V8_UNIXTIME(args[2]);
+  }
+
+  ev_stat_set(&handler->watcher_, handler->path_, interval);
+  ev_stat_start(EV_DEFAULT_UC_ &handler->watcher_);
+
+  handler->persistent_ = args[1]->IsTrue();
+
+  if (!handler->persistent_) {
+    ev_unref(EV_DEFAULT_UC);
+  }
+
+  handler->Ref();
+
+  return Undefined();
+}
+
+
+Handle<Value> StatWatcher::Stop(const Arguments& args) {
+  HandleScope scope;
+  StatWatcher *handler = ObjectWrap::Unwrap<StatWatcher>(args.Holder());
+  handler->Emit(stop_symbol, 0, NULL);
+  handler->Stop();
+  return Undefined();
+}
+
+
+void StatWatcher::Stop () {
+  if (watcher_.active) {
+    if (!persistent_) ev_ref(EV_DEFAULT_UC);
+    ev_stat_stop(EV_DEFAULT_UC_ &watcher_);
+    free(path_);
+    path_ = NULL;
+    Unref();
+  }
+}
+
+
+}  // namespace node