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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/utf_string_conversions.h" | 8 #include "base/utf_string_conversions.h" |
9 #include "base/win/scoped_handle.h" | 9 #include "base/win/scoped_handle.h" |
10 | 10 |
11 class MultiProcessLockWin : public MultiProcessLock { | 11 class MultiProcessLockWin : public MultiProcessLock { |
12 public: | 12 public: |
13 explicit MultiProcessLockWin(const std::string& name) : name_(name) { } | 13 explicit MultiProcessLockWin(const std::string& name) : name_(name) { } |
14 | 14 |
15 virtual ~MultiProcessLockWin() { | 15 virtual ~MultiProcessLockWin() { |
16 if (event_.Get() != NULL) { | 16 if (event_.Get() != NULL) { |
17 Unlock(); | 17 Unlock(); |
18 } | 18 } |
19 } | 19 } |
20 | 20 |
21 virtual bool TryLock() { | 21 virtual bool TryLock() { |
22 if (event_.Get() != NULL) { | 22 if (event_.Get() != 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 string16 wname = UTF8ToUTF16(name_); | 34 string16 wname = UTF8ToUTF16(name_); |
34 event_.Set(CreateEvent(NULL, FALSE, FALSE, wname.c_str())); | 35 event_.Set(CreateEvent(NULL, FALSE, FALSE, wname.c_str())); |
35 if (event_.Get() && GetLastError() != ERROR_ALREADY_EXISTS) { | 36 if (event_.Get() && GetLastError() != ERROR_ALREADY_EXISTS) { |
36 return true; | 37 return true; |
37 } else { | 38 } else { |
38 event_.Set(NULL); | 39 event_.Set(NULL); |
39 return false; | 40 return false; |
(...skipping 10 matching lines...) Expand all Loading... |
50 | 51 |
51 private: | 52 private: |
52 std::string name_; | 53 std::string name_; |
53 base::win::ScopedHandle event_; | 54 base::win::ScopedHandle event_; |
54 DISALLOW_COPY_AND_ASSIGN(MultiProcessLockWin); | 55 DISALLOW_COPY_AND_ASSIGN(MultiProcessLockWin); |
55 }; | 56 }; |
56 | 57 |
57 MultiProcessLock* MultiProcessLock::Create(const std::string &name) { | 58 MultiProcessLock* MultiProcessLock::Create(const std::string &name) { |
58 return new MultiProcessLockWin(name); | 59 return new MultiProcessLockWin(name); |
59 } | 60 } |
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