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authorMoonchild <mcwerewolf@gmail.com>2018-05-04 09:09:10 +0200
committerGitHub <noreply@github.com>2018-05-04 09:09:10 +0200
commit4a2aeb152e48c44efa57c140660e99792f4dd350 (patch)
tree7b786de2b175122814a53232268b1147a8bd0bfb /security/sandbox/chromium/base/threading/thread_local.h
parent20532e13937ab5fc8efcb2bfc4c0070dace40cd1 (diff)
parentf265784e8cabaff17f4554cf2bd2c30217b6ec0f (diff)
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Merge pull request #323 from MoonchildProductions/nuke-sandbox
Nuke sandbox
Diffstat (limited to 'security/sandbox/chromium/base/threading/thread_local.h')
-rw-r--r--security/sandbox/chromium/base/threading/thread_local.h134
1 files changed, 0 insertions, 134 deletions
diff --git a/security/sandbox/chromium/base/threading/thread_local.h b/security/sandbox/chromium/base/threading/thread_local.h
deleted file mode 100644
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--- a/security/sandbox/chromium/base/threading/thread_local.h
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@@ -1,134 +0,0 @@
-// 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.
-
-// WARNING: Thread local storage is a bit tricky to get right. Please make
-// sure that this is really the proper solution for what you're trying to
-// achieve. Don't prematurely optimize, most likely you can just use a Lock.
-//
-// These classes implement a wrapper around the platform's TLS storage
-// mechanism. On construction, they will allocate a TLS slot, and free the
-// TLS slot on destruction. No memory management (creation or destruction) is
-// handled. This means for uses of ThreadLocalPointer, you must correctly
-// manage the memory yourself, these classes will not destroy the pointer for
-// you. There are no at-thread-exit actions taken by these classes.
-//
-// ThreadLocalPointer<Type> wraps a Type*. It performs no creation or
-// destruction, so memory management must be handled elsewhere. The first call
-// to Get() on a thread will return NULL. You can update the pointer with a
-// call to Set().
-//
-// ThreadLocalBoolean wraps a bool. It will default to false if it has never
-// been set otherwise with Set().
-//
-// Thread Safety: An instance of ThreadLocalStorage is completely thread safe
-// once it has been created. If you want to dynamically create an instance,
-// you must of course properly deal with safety and race conditions. This
-// means a function-level static initializer is generally inappropiate.
-//
-// In Android, the system TLS is limited, the implementation is backed with
-// ThreadLocalStorage.
-//
-// Example usage:
-// // My class is logically attached to a single thread. We cache a pointer
-// // on the thread it was created on, so we can implement current().
-// MyClass::MyClass() {
-// DCHECK(Singleton<ThreadLocalPointer<MyClass> >::get()->Get() == NULL);
-// Singleton<ThreadLocalPointer<MyClass> >::get()->Set(this);
-// }
-//
-// MyClass::~MyClass() {
-// DCHECK(Singleton<ThreadLocalPointer<MyClass> >::get()->Get() != NULL);
-// Singleton<ThreadLocalPointer<MyClass> >::get()->Set(NULL);
-// }
-//
-// // Return the current MyClass associated with the calling thread, can be
-// // NULL if there isn't a MyClass associated.
-// MyClass* MyClass::current() {
-// return Singleton<ThreadLocalPointer<MyClass> >::get()->Get();
-// }
-
-#ifndef BASE_THREADING_THREAD_LOCAL_H_
-#define BASE_THREADING_THREAD_LOCAL_H_
-
-#include "base/base_export.h"
-#include "base/macros.h"
-#include "base/threading/thread_local_storage.h"
-#include "build/build_config.h"
-
-#if defined(OS_POSIX)
-#include <pthread.h>
-#endif
-
-namespace base {
-namespace internal {
-
-// Helper functions that abstract the cross-platform APIs. Do not use directly.
-struct BASE_EXPORT ThreadLocalPlatform {
-#if defined(OS_WIN)
- typedef unsigned long SlotType;
-#elif defined(OS_ANDROID)
- typedef ThreadLocalStorage::StaticSlot SlotType;
-#elif defined(OS_POSIX)
- typedef pthread_key_t SlotType;
-#endif
-
- static void AllocateSlot(SlotType* slot);
- static void FreeSlot(SlotType slot);
- static void* GetValueFromSlot(SlotType slot);
- static void SetValueInSlot(SlotType slot, void* value);
-};
-
-} // namespace internal
-
-template <typename Type>
-class ThreadLocalPointer {
- public:
- ThreadLocalPointer() : slot_() {
- internal::ThreadLocalPlatform::AllocateSlot(&slot_);
- }
-
- ~ThreadLocalPointer() {
- internal::ThreadLocalPlatform::FreeSlot(slot_);
- }
-
- Type* Get() {
- return static_cast<Type*>(
- internal::ThreadLocalPlatform::GetValueFromSlot(slot_));
- }
-
- void Set(Type* ptr) {
- internal::ThreadLocalPlatform::SetValueInSlot(
- slot_, const_cast<void*>(static_cast<const void*>(ptr)));
- }
-
- private:
- typedef internal::ThreadLocalPlatform::SlotType SlotType;
-
- SlotType slot_;
-
- DISALLOW_COPY_AND_ASSIGN(ThreadLocalPointer<Type>);
-};
-
-class ThreadLocalBoolean {
- public:
- ThreadLocalBoolean() {}
- ~ThreadLocalBoolean() {}
-
- bool Get() {
- return tlp_.Get() != NULL;
- }
-
- void Set(bool val) {
- tlp_.Set(val ? this : NULL);
- }
-
- private:
- ThreadLocalPointer<void> tlp_;
-
- DISALLOW_COPY_AND_ASSIGN(ThreadLocalBoolean);
-};
-
-} // namespace base
-
-#endif // BASE_THREADING_THREAD_LOCAL_H_