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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/thread_restrictions.h" | |
| 6 | |
| 7 // This entire file is compiled out in Release mode. | |
| 8 #ifndef NDEBUG | |
| 9 | |
| 10 #include "base/lazy_instance.h" | |
| 11 #include "base/logging.h" | |
| 12 #include "base/threading/thread_local.h" | |
| 13 | |
| 14 namespace base { | |
| 15 | |
| 16 namespace { | |
| 17 | |
| 18 LazyInstance<ThreadLocalBoolean, LeakyLazyInstanceTraits<ThreadLocalBoolean> > | |
| 19 g_io_disallowed(LINKER_INITIALIZED); | |
| 20 | |
| 21 LazyInstance<ThreadLocalBoolean, LeakyLazyInstanceTraits<ThreadLocalBoolean> > | |
| 22 g_singleton_disallowed(LINKER_INITIALIZED); | |
| 23 | |
| 24 } // anonymous namespace | |
| 25 | |
| 26 // static | |
| 27 bool ThreadRestrictions::SetIOAllowed(bool allowed) { | |
| 28 bool previous_disallowed = g_io_disallowed.Get().Get(); | |
| 29 g_io_disallowed.Get().Set(!allowed); | |
| 30 return !previous_disallowed; | |
| 31 } | |
| 32 | |
| 33 // static | |
| 34 void ThreadRestrictions::AssertIOAllowed() { | |
| 35 if (g_io_disallowed.Get().Get()) { | |
| 36 LOG(FATAL) << | |
| 37 "Function marked as IO-only was called from a thread that " | |
| 38 "disallows IO! If this thread really should be allowed to " | |
| 39 "make IO calls, adjust the call to " | |
| 40 "base::ThreadRestrictions::SetIOAllowed() in this thread's " | |
| 41 "startup."; | |
| 42 } | |
| 43 } | |
| 44 | |
| 45 bool ThreadRestrictions::SetSingletonAllowed(bool allowed) { | |
| 46 bool previous_disallowed = g_singleton_disallowed.Get().Get(); | |
| 47 g_singleton_disallowed.Get().Set(!allowed); | |
| 48 return !previous_disallowed; | |
| 49 } | |
| 50 | |
| 51 // static | |
| 52 void ThreadRestrictions::AssertSingletonAllowed() { | |
| 53 if (g_singleton_disallowed.Get().Get()) { | |
| 54 LOG(FATAL) << "LazyInstance/Singleton is not allowed to be used on this " | |
| 55 << "thread. Most likely it's because this thread is not " | |
| 56 << "joinable, so AtExitManager may have deleted the object " | |
| 57 << "on shutdown, leading to a potential shutdown crash."; | |
| 58 } | |
| 59 } | |
| 60 | |
| 61 } // namespace base | |
| 62 | |
| 63 #endif // NDEBUG | |
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Chromium Code Reviews
Issue 6028009:
Move base/thread.h to base/threading, fix up callers to use the new location.... (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/