| // Copyright (c) 2011 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/multi_process_lock.h" |
| |
| #include "base/logging.h" |
| #include "base/mac/scoped_cftyperef.h" |
| #include "base/macros.h" |
| #include "base/strings/sys_string_conversions.h" |
| |
| #include <servers/bootstrap.h> |
| |
| class MultiProcessLockMac : public MultiProcessLock { |
| public: |
| explicit MultiProcessLockMac(const std::string& name) : name_(name) { } |
| |
| ~MultiProcessLockMac() override { |
| if (port_ != NULL) { |
| Unlock(); |
| } |
| } |
| |
| bool TryLock() override { |
| if (port_ != NULL) { |
| DLOG(ERROR) << "MultiProcessLock is already locked - " << name_; |
| return true; |
| } |
| |
| if (name_.length() >= BOOTSTRAP_MAX_NAME_LEN) { |
| LOG(ERROR) << "Socket name too long (" << name_.length() |
| << " >= " << BOOTSTRAP_MAX_NAME_LEN << ") - " << name_; |
| return false; |
| } |
| |
| base::ScopedCFTypeRef<CFStringRef> cf_name = |
| base::SysUTF8ToCFStringRef(name_); |
| port_.reset(CFMessagePortCreateLocal(NULL, cf_name, NULL, NULL, NULL)); |
| return port_ != NULL; |
| } |
| |
| void Unlock() override { |
| if (port_ == NULL) { |
| DLOG(ERROR) << "Over-unlocked MultiProcessLock - " << name_; |
| return; |
| } |
| port_.reset(); |
| } |
| |
| private: |
| std::string name_; |
| base::ScopedCFTypeRef<CFMessagePortRef> port_; |
| DISALLOW_COPY_AND_ASSIGN(MultiProcessLockMac); |
| }; |
| |
| std::unique_ptr<MultiProcessLock> MultiProcessLock::Create( |
| const std::string& name) { |
| return std::make_unique<MultiProcessLockMac>(name); |
| } |