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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "chrome/common/multi_process_lock.h" | 5 #include "chrome/common/multi_process_lock.h" |
| 6 | 6 |
| 7 #include "base/logging.h" | 7 #include "base/logging.h" |
| 8 #include "base/mac/scoped_cftyperef.h" | 8 #include "base/mac/scoped_cftyperef.h" |
| 9 #include "base/sys_string_conversions.h" | 9 #include "base/sys_string_conversions.h" |
| 10 | 10 |
| 11 class MultiProcessLockMac : public MultiProcessLock { | 11 class MultiProcessLockMac : public MultiProcessLock { |
| 12 public: | 12 public: |
| 13 explicit MultiProcessLockMac(const std::string& name) : name_(name) { } | 13 explicit MultiProcessLockMac(const std::string& name) : name_(name) { } |
| 14 | 14 |
| 15 virtual ~MultiProcessLockMac() { | 15 virtual ~MultiProcessLockMac() { |
| 16 if (port_ != NULL) { | 16 if (port_ != NULL) { |
| 17 Unlock(); | 17 Unlock(); |
| 18 } | 18 } |
| 19 } | 19 } |
| 20 | 20 |
| 21 virtual bool TryLock() { | 21 virtual bool TryLock() { |
| 22 if (port_ != NULL) { | 22 if (port_ != NULL) { |
| 23 DLOG(ERROR) << "MultiProcessLock is already locked - " << name_; | 23 DLOG(ERROR) << "MultiProcessLock is already locked - " << name_; |
| 24 return true; | 24 return true; |
| 25 } | 25 } |
| 26 | 26 |
| 27 if (name_.length() > MULTI_PROCESS_LOCK_NAME_MAX_LEN) { | 27 if (name_.length() > MULTI_PROCESS_LOCK_NAME_MAX_LEN) { |
| 28 LOG(ERROR) << "Socket name too long (" << name_.length() | 28 DLOG(ERROR) << "Socket name too long (" << name_.length() |
| 29 << " > " << MULTI_PROCESS_LOCK_NAME_MAX_LEN << ") - " << name_; | 29 << " > " << MULTI_PROCESS_LOCK_NAME_MAX_LEN << ") - " |
| 30 << name_; |
| 30 return false; | 31 return false; |
| 31 } | 32 } |
| 32 | 33 |
| 33 CFStringRef cf_name(base::SysUTF8ToCFStringRef(name_)); | 34 CFStringRef cf_name(base::SysUTF8ToCFStringRef(name_)); |
| 34 base::mac::ScopedCFTypeRef<CFStringRef> scoped_cf_name(cf_name); | 35 base::mac::ScopedCFTypeRef<CFStringRef> scoped_cf_name(cf_name); |
| 35 port_.reset(CFMessagePortCreateLocal(NULL, cf_name, NULL, NULL, NULL)); | 36 port_.reset(CFMessagePortCreateLocal(NULL, cf_name, NULL, NULL, NULL)); |
| 36 return port_ != NULL; | 37 return port_ != NULL; |
| 37 } | 38 } |
| 38 | 39 |
| 39 virtual void Unlock() { | 40 virtual void Unlock() { |
| 40 if (port_ == NULL) { | 41 if (port_ == NULL) { |
| 41 DLOG(ERROR) << "Over-unlocked MultiProcessLock - " << name_; | 42 DLOG(ERROR) << "Over-unlocked MultiProcessLock - " << name_; |
| 42 return; | 43 return; |
| 43 } | 44 } |
| 44 port_.reset(); | 45 port_.reset(); |
| 45 } | 46 } |
| 46 | 47 |
| 47 private: | 48 private: |
| 48 std::string name_; | 49 std::string name_; |
| 49 base::mac::ScopedCFTypeRef<CFMessagePortRef> port_; | 50 base::mac::ScopedCFTypeRef<CFMessagePortRef> port_; |
| 50 DISALLOW_COPY_AND_ASSIGN(MultiProcessLockMac); | 51 DISALLOW_COPY_AND_ASSIGN(MultiProcessLockMac); |
| 51 }; | 52 }; |
| 52 | 53 |
| 53 MultiProcessLock* MultiProcessLock::Create(const std::string &name) { | 54 MultiProcessLock* MultiProcessLock::Create(const std::string &name) { |
| 54 return new MultiProcessLockMac(name); | 55 return new MultiProcessLockMac(name); |
| 55 } | 56 } |
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