public:

static void Initialize(v8::Handle<v8::Object> target);

protected:

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

static v8::Handle<v8::Value> Spawn(const v8::Arguments& args);

static v8::Handle<v8::Value> Kill(const v8::Arguments& args);

ChildProcess() : ObjectWrap() {

ev_init(&child_watcher_, ChildProcess::on_chld);

child_watcher_.data = this;

pid_ = -1;

}

~ChildProcess() {

Stop();

}

// Returns 0 on success. stdio_fds will contain file desciptors for stdin,

// stdout, and stderr of the subprocess. stdin is writable; the other two

// are readable.

// The user of this class has responsibility to close these pipes after

// the child process exits.

int Spawn(const char *file, char *const argv[], const char *cwd, char **env, int stdio_fds[3], int custom_fds[3]);

// Simple syscall wrapper. Does not disable the watcher. onexit will be

// called still.

int Kill(int sig);

private:

void OnExit(int code);

void Stop(void);

static void on_chld(EV_P_ ev_child *watcher, int revents) {

ChildProcess *child = static_cast<ChildProcess*>(watcher->data);

assert(revents == EV_CHILD);

assert(child->pid_ == watcher->rpid);

assert(&child->child_watcher_ == watcher);

child->OnExit(watcher->rstatus);

}

ev_child child_watcher_;

pid_t pid_;