blob: 4e1383e7ca57206533c347b83c55c87e86dbb002 [file] [log] [blame]
// Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "shill/process_killer.h"
using base::Closure;
using std::map;
namespace shill {
namespace {
base::LazyInstance<ProcessKiller> g_process_killer = LAZY_INSTANCE_INITIALIZER;
} // namespace
ProcessKiller::ProcessKiller() {}
ProcessKiller::~ProcessKiller() {
// There's no need to release any GLib child watch sources because this class
// is a singleton and will be destroyed when this process exits, i.e., when
// GLib is shut down.
}
// static
ProcessKiller *ProcessKiller::GetInstance() {
return g_process_killer.Pointer();
}
void ProcessKiller::Kill(int pid, const Closure &callback) {
LOG(INFO) << "Killing pid " << pid;
if (!callback.is_null()) {
callbacks_[pid] = callback;
}
g_child_watch_add(pid, OnProcessDied, this);
// TODO(petkov): Consider sending subsequent periodic signals and raising the
// signal to SIGKILL if the process keeps running.
kill(pid, SIGTERM);
}
// static
void ProcessKiller::OnProcessDied(GPid pid, gint status, gpointer data) {
LOG(INFO) << "pid " << pid << " died, status " << status;
ProcessKiller *me = reinterpret_cast<ProcessKiller *>(data);
map<int, Closure>::iterator callback_it = me->callbacks_.find(pid);
if (callback_it == me->callbacks_.end()) {
return;
}
const Closure &callback = callback_it->second;
if (!callback.is_null()) {
LOG(INFO) << "Running callback for dead pid " << pid;
callback.Run();
}
me->callbacks_.erase(callback_it);
}
} // namespace shill