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// Copyright (c) 2010 The Chromium 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 "chrome/common/service_process_util_posix.h"
#include <signal.h>
#include <unistd.h>
#include "base/command_line.h"
#include "base/file_util.h"
#include "base/logging.h"
#include "base/threading/platform_thread.h"
#include "chrome/common/auto_start_linux.h"
#include "chrome/common/multi_process_lock.h"
namespace {
// Attempts to take a lock named |name|. If |waiting| is true then this will
// make multiple attempts to acquire the lock.
// Caller is responsible for ownership of the MultiProcessLock.
MultiProcessLock* TakeNamedLock(const std::string& name, bool waiting) {
scoped_ptr<MultiProcessLock> lock(MultiProcessLock::Create(name));
if (lock == NULL) return NULL;
bool got_lock = false;
for (int i = 0; i < 10; ++i) {
if (lock->TryLock()) {
got_lock = true;
break;
}
if (!waiting) break;
base::PlatformThread::Sleep(100 * i);
}
if (!got_lock) {
lock.reset();
}
return lock.release();
}
MultiProcessLock* TakeServiceInitializingLock(bool waiting) {
std::string lock_name =
GetServiceProcessScopedName("_service_initializing");
return TakeNamedLock(lock_name, waiting);
}
std::string GetBaseDesktopName() {
#if defined(GOOGLE_CHROME_BUILD)
return "google-chrome-service.desktop";
#else // CHROMIUM_BUILD
return "chromium-service.desktop";
#endif
}
} // namespace
MultiProcessLock* TakeServiceRunningLock(bool waiting) {
std::string lock_name =
GetServiceProcessScopedName("_service_running");
return TakeNamedLock(lock_name, waiting);
}
bool ForceServiceProcessShutdown(const std::string& version,
base::ProcessId process_id) {
if (kill(process_id, SIGTERM) < 0) {
PLOG(ERROR) << "kill";
return false;
}
return true;
}
bool CheckServiceProcessReady() {
scoped_ptr<MultiProcessLock> running_lock(TakeServiceRunningLock(false));
return running_lock.get() == NULL;
}
bool ServiceProcessState::TakeSingletonLock() {
state_->initializing_lock_.reset(TakeServiceInitializingLock(true));
return state_->initializing_lock_.get();
}
bool ServiceProcessState::AddToAutoRun() {
DCHECK(autorun_command_line_.get());
#if defined(GOOGLE_CHROME_BUILD)
std::string app_name = "Google Chrome Service";
#else // CHROMIUM_BUILD
std::string app_name = "Chromium Service";
#endif
return AutoStart::AddApplication(
GetServiceProcessScopedName(GetBaseDesktopName()),
app_name,
autorun_command_line_->command_line_string(),
false);
}
bool ServiceProcessState::RemoveFromAutoRun() {
return AutoStart::Remove(
GetServiceProcessScopedName(GetBaseDesktopName()));
}
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