mirror of https://github.com/lukechilds/node.git
Ryan Dahl
15 years ago
7 changed files with 202 additions and 0 deletions
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// Copyright 2009 Ryan Dahl <ry@tinyclouds.org>
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#include <node_stat.h> |
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#include <assert.h> |
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#include <string.h> |
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#include <stdlib.h> |
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namespace node { |
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using namespace v8; |
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Persistent<FunctionTemplate> Stat::constructor_template; |
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void Stat::Initialize(Handle<Object> target) { |
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HandleScope scope; |
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Local<FunctionTemplate> t = FunctionTemplate::New(Stat::New); |
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constructor_template = Persistent<FunctionTemplate>::New(t); |
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constructor_template->Inherit(EventEmitter::constructor_template); |
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constructor_template->InstanceTemplate()->SetInternalFieldCount(1); |
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constructor_template->SetClassName(String::NewSymbol("Stat")); |
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NODE_SET_PROTOTYPE_METHOD(constructor_template, "start", Stat::Start); |
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NODE_SET_PROTOTYPE_METHOD(constructor_template, "stop", Stat::Stop); |
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target->Set(String::NewSymbol("Stat"), constructor_template->GetFunction()); |
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} |
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void Stat::Callback(EV_P_ ev_stat *watcher, int revents) { |
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assert(revents == EV_STAT); |
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Stat *handler = static_cast<Stat*>(watcher->data); |
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assert(watcher == &handler->watcher_); |
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HandleScope scope; |
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handler->Emit("change", 0, NULL); |
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} |
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Handle<Value> Stat::New(const Arguments& args) { |
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HandleScope scope; |
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Stat *s = new Stat(); |
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s->Wrap(args.Holder()); |
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return args.This(); |
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} |
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Handle<Value> Stat::Start(const Arguments& args) { |
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HandleScope scope; |
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if (args.Length() < 1 || !args[0]->IsString()) { |
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return ThrowException(Exception::TypeError(String::New("Bad arguments"))); |
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} |
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Stat *handler = ObjectWrap::Unwrap<Stat>(args.Holder()); |
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String::Utf8Value path(args[0]->ToString()); |
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assert(handler->path_ == NULL); |
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handler->path_ = strdup(*path); |
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ev_stat_set(&handler->watcher_, handler->path_, 0.); |
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ev_stat_start(EV_DEFAULT_UC_ &handler->watcher_); |
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handler->persistent_ = args[1]->IsTrue(); |
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if (!handler->persistent_) { |
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ev_unref(EV_DEFAULT_UC); |
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} |
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handler->Attach(); |
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return Undefined(); |
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} |
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Handle<Value> Stat::Stop(const Arguments& args) { |
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HandleScope scope; |
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Stat *handler = ObjectWrap::Unwrap<Stat>(args.Holder()); |
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handler->Emit("stop", 0, NULL); |
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handler->Stop(); |
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return Undefined(); |
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} |
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void Stat::Stop () { |
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if (watcher_.active) { |
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if (!persistent_) ev_ref(EV_DEFAULT_UC); |
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ev_stat_stop(EV_DEFAULT_UC_ &watcher_); |
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free(path_); |
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path_ = NULL; |
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Detach(); |
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} |
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} |
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} // namespace node
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// Copyright 2009 Ryan Dahl <ry@tinyclouds.org>
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#ifndef NODE_STAT_H_ |
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#define NODE_STAT_H_ |
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#include <node.h> |
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#include <node_events.h> |
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#include <ev.h> |
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namespace node { |
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class Stat : EventEmitter { |
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public: |
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static void Initialize(v8::Handle<v8::Object> target); |
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protected: |
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static v8::Persistent<v8::FunctionTemplate> constructor_template; |
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Stat() : EventEmitter() { |
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persistent_ = false; |
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path_ = NULL; |
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ev_init(&watcher_, Stat::Callback); |
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watcher_.data = this; |
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} |
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~Stat() { |
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Stop(); |
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assert(path_ == NULL); |
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} |
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static v8::Handle<v8::Value> New(const v8::Arguments& args); |
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static v8::Handle<v8::Value> Start(const v8::Arguments& args); |
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static v8::Handle<v8::Value> Stop(const v8::Arguments& args); |
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private: |
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static void Callback(EV_P_ ev_stat *watcher, int revents); |
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void Stop(); |
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ev_stat watcher_; |
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bool persistent_; |
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char *path_; |
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}; |
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} // namespace node
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#endif // NODE_STAT_H_
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process.mixin(require("./common")); |
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var posix = require("posix"); |
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var path = require("path"); |
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var f = path.join(fixturesDir, "x.txt"); |
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var f2 = path.join(fixturesDir, "x2.txt"); |
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var changes = 0; |
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process.watchFile(f, function () { |
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puts(f + " change"); |
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changes++; |
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}); |
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setTimeout(function () { |
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posix.rename(f, f2).wait(); |
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posix.rename(f2, f).wait(); |
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process.unwatchFile(f); |
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}, 10); |
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process.addListener("exit", function () { |
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assertTrue(changes > 0); |
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}); |
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