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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 "base/threading/thread_local_storage.h" | 5 #include "base/threading/thread_local_storage.h" |
| 6 | 6 |
| 7 #include "base/atomicops.h" | 7 #include "base/atomicops.h" |
| 8 #include "base/logging.h" | 8 #include "base/logging.h" |
| 9 #include "base/synchronization/lock.h" | 9 #include "base/synchronization/lock.h" |
| 10 #include "build/build_config.h" | 10 #include "build/build_config.h" |
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| 85 }; | 85 }; |
| 86 | 86 |
| 87 struct TlsVectorEntry { | 87 struct TlsVectorEntry { |
| 88 void* data; | 88 void* data; |
| 89 uint32_t version; | 89 uint32_t version; |
| 90 }; | 90 }; |
| 91 | 91 |
| 92 // This lock isn't needed until after we've constructed the per-thread TLS | 92 // This lock isn't needed until after we've constructed the per-thread TLS |
| 93 // vector, so it's safe to use. | 93 // vector, so it's safe to use. |
| 94 base::Lock* GetTLSMetadataLock() { | 94 base::Lock* GetTLSMetadataLock() { |
| 95 static auto lock = new base::Lock(); | 95 static auto* lock = new base::Lock(); |
| 96 return lock; | 96 return lock; |
| 97 } | 97 } |
| 98 TlsMetadata g_tls_metadata[kThreadLocalStorageSize]; | 98 TlsMetadata g_tls_metadata[kThreadLocalStorageSize]; |
| 99 size_t g_last_assigned_slot = 0; | 99 size_t g_last_assigned_slot = 0; |
| 100 | 100 |
| 101 // The maximum number of times to try to clear slots by calling destructors. | 101 // The maximum number of times to try to clear slots by calling destructors. |
| 102 // Use pthread naming convention for clarity. | 102 // Use pthread naming convention for clarity. |
| 103 constexpr int kMaxDestructorIterations = kThreadLocalStorageSize; | 103 constexpr int kMaxDestructorIterations = kThreadLocalStorageSize; |
| 104 | 104 |
| 105 // This function is called to initialize our entire Chromium TLS system. | 105 // This function is called to initialize our entire Chromium TLS system. |
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| 338 | 338 |
| 339 void* ThreadLocalStorage::Slot::Get() const { | 339 void* ThreadLocalStorage::Slot::Get() const { |
| 340 return tls_slot_.Get(); | 340 return tls_slot_.Get(); |
| 341 } | 341 } |
| 342 | 342 |
| 343 void ThreadLocalStorage::Slot::Set(void* value) { | 343 void ThreadLocalStorage::Slot::Set(void* value) { |
| 344 tls_slot_.Set(value); | 344 tls_slot_.Set(value); |
| 345 } | 345 } |
| 346 | 346 |
| 347 } // namespace base | 347 } // namespace base |
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