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Diffstat (limited to 'src/third_party/gperftools-2.5/src/malloc_hook-inl.h')
| -rw-r--r-- | src/third_party/gperftools-2.5/src/malloc_hook-inl.h | 249 |
1 files changed, 0 insertions, 249 deletions
diff --git a/src/third_party/gperftools-2.5/src/malloc_hook-inl.h b/src/third_party/gperftools-2.5/src/malloc_hook-inl.h deleted file mode 100644 index dbf4d46ed47..00000000000 --- a/src/third_party/gperftools-2.5/src/malloc_hook-inl.h +++ /dev/null @@ -1,249 +0,0 @@ -// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- -// Copyright (c) 2005, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -// --- -// Author: Sanjay Ghemawat -// -// This has the implementation details of malloc_hook that are needed -// to use malloc-hook inside the tcmalloc system. It does not hold -// any of the client-facing calls that are used to add new hooks. - -#ifndef _MALLOC_HOOK_INL_H_ -#define _MALLOC_HOOK_INL_H_ - -#include <stddef.h> -#include <sys/types.h> -#include "base/atomicops.h" -#include "base/basictypes.h" -#include <gperftools/malloc_hook.h> - -#include "common.h" // for UNLIKELY - -namespace base { namespace internal { - -// Capacity of 8 means that HookList is 9 words. -static const int kHookListCapacity = 8; -// last entry is reserved for deprecated "singular" hooks. So we have -// 7 "normal" hooks per list -static const int kHookListMaxValues = 7; -static const int kHookListSingularIdx = 7; - -// HookList: a class that provides synchronized insertions and removals and -// lockless traversal. Most of the implementation is in malloc_hook.cc. -template <typename T> -struct PERFTOOLS_DLL_DECL HookList { - COMPILE_ASSERT(sizeof(T) <= sizeof(AtomicWord), T_should_fit_in_AtomicWord); - - // Adds value to the list. Note that duplicates are allowed. Thread-safe and - // blocking (acquires hooklist_spinlock). Returns true on success; false - // otherwise (failures include invalid value and no space left). - bool Add(T value); - - void FixupPrivEndLocked(); - - // Removes the first entry matching value from the list. Thread-safe and - // blocking (acquires hooklist_spinlock). Returns true on success; false - // otherwise (failures include invalid value and no value found). - bool Remove(T value); - - // Store up to n values of the list in output_array, and return the number of - // elements stored. Thread-safe and non-blocking. This is fast (one memory - // access) if the list is empty. - int Traverse(T* output_array, int n) const; - - // Fast inline implementation for fast path of Invoke*Hook. - bool empty() const { - return base::subtle::NoBarrier_Load(&priv_end) == 0; - } - - // Used purely to handle deprecated singular hooks - T GetSingular() const { - const AtomicWord *place = &priv_data[kHookListSingularIdx]; - return bit_cast<T>(base::subtle::NoBarrier_Load(place)); - } - - T ExchangeSingular(T new_val); - - // This internal data is not private so that the class is an aggregate and can - // be initialized by the linker. Don't access this directly. Use the - // INIT_HOOK_LIST macro in malloc_hook.cc. - - // One more than the index of the last valid element in priv_data. During - // 'Remove' this may be past the last valid element in priv_data, but - // subsequent values will be 0. - // - // Index kHookListCapacity-1 is reserved as 'deprecated' single hook pointer - AtomicWord priv_end; - AtomicWord priv_data[kHookListCapacity]; -}; - -ATTRIBUTE_VISIBILITY_HIDDEN extern HookList<MallocHook::NewHook> new_hooks_; -ATTRIBUTE_VISIBILITY_HIDDEN extern HookList<MallocHook::DeleteHook> delete_hooks_; -ATTRIBUTE_VISIBILITY_HIDDEN extern HookList<MallocHook::PreMmapHook> premmap_hooks_; -ATTRIBUTE_VISIBILITY_HIDDEN extern HookList<MallocHook::MmapHook> mmap_hooks_; -ATTRIBUTE_VISIBILITY_HIDDEN extern HookList<MallocHook::MmapReplacement> mmap_replacement_; -ATTRIBUTE_VISIBILITY_HIDDEN extern HookList<MallocHook::MunmapHook> munmap_hooks_; -ATTRIBUTE_VISIBILITY_HIDDEN extern HookList<MallocHook::MunmapReplacement> munmap_replacement_; -ATTRIBUTE_VISIBILITY_HIDDEN extern HookList<MallocHook::MremapHook> mremap_hooks_; -ATTRIBUTE_VISIBILITY_HIDDEN extern HookList<MallocHook::PreSbrkHook> presbrk_hooks_; -ATTRIBUTE_VISIBILITY_HIDDEN extern HookList<MallocHook::SbrkHook> sbrk_hooks_; - -} } // namespace base::internal - -// The following method is DEPRECATED -inline MallocHook::NewHook MallocHook::GetNewHook() { - return base::internal::new_hooks_.GetSingular(); -} - -inline void MallocHook::InvokeNewHook(const void* p, size_t s) { - if (UNLIKELY(!base::internal::new_hooks_.empty())) { - InvokeNewHookSlow(p, s); - } -} - -// The following method is DEPRECATED -inline MallocHook::DeleteHook MallocHook::GetDeleteHook() { - return base::internal::delete_hooks_.GetSingular(); -} - -inline void MallocHook::InvokeDeleteHook(const void* p) { - if (UNLIKELY(!base::internal::delete_hooks_.empty())) { - InvokeDeleteHookSlow(p); - } -} - -// The following method is DEPRECATED -inline MallocHook::PreMmapHook MallocHook::GetPreMmapHook() { - return base::internal::premmap_hooks_.GetSingular(); -} - -inline void MallocHook::InvokePreMmapHook(const void* start, - size_t size, - int protection, - int flags, - int fd, - off_t offset) { - if (!base::internal::premmap_hooks_.empty()) { - InvokePreMmapHookSlow(start, size, protection, flags, fd, offset); - } -} - -// The following method is DEPRECATED -inline MallocHook::MmapHook MallocHook::GetMmapHook() { - return base::internal::mmap_hooks_.GetSingular(); -} - -inline void MallocHook::InvokeMmapHook(const void* result, - const void* start, - size_t size, - int protection, - int flags, - int fd, - off_t offset) { - if (!base::internal::mmap_hooks_.empty()) { - InvokeMmapHookSlow(result, start, size, protection, flags, fd, offset); - } -} - -inline bool MallocHook::InvokeMmapReplacement(const void* start, - size_t size, - int protection, - int flags, - int fd, - off_t offset, - void** result) { - if (!base::internal::mmap_replacement_.empty()) { - return InvokeMmapReplacementSlow(start, size, - protection, flags, - fd, offset, - result); - } - return false; -} - -// The following method is DEPRECATED -inline MallocHook::MunmapHook MallocHook::GetMunmapHook() { - return base::internal::munmap_hooks_.GetSingular(); -} - -inline void MallocHook::InvokeMunmapHook(const void* p, size_t size) { - if (!base::internal::munmap_hooks_.empty()) { - InvokeMunmapHookSlow(p, size); - } -} - -inline bool MallocHook::InvokeMunmapReplacement( - const void* p, size_t size, int* result) { - if (!base::internal::mmap_replacement_.empty()) { - return InvokeMunmapReplacementSlow(p, size, result); - } - return false; -} - -// The following method is DEPRECATED -inline MallocHook::MremapHook MallocHook::GetMremapHook() { - return base::internal::mremap_hooks_.GetSingular(); -} - -inline void MallocHook::InvokeMremapHook(const void* result, - const void* old_addr, - size_t old_size, - size_t new_size, - int flags, - const void* new_addr) { - if (!base::internal::mremap_hooks_.empty()) { - InvokeMremapHookSlow(result, old_addr, old_size, new_size, flags, new_addr); - } -} - -// The following method is DEPRECATED -inline MallocHook::PreSbrkHook MallocHook::GetPreSbrkHook() { - return base::internal::presbrk_hooks_.GetSingular(); -} - -inline void MallocHook::InvokePreSbrkHook(ptrdiff_t increment) { - if (!base::internal::presbrk_hooks_.empty() && increment != 0) { - InvokePreSbrkHookSlow(increment); - } -} - -// The following method is DEPRECATED -inline MallocHook::SbrkHook MallocHook::GetSbrkHook() { - return base::internal::sbrk_hooks_.GetSingular(); -} - -inline void MallocHook::InvokeSbrkHook(const void* result, - ptrdiff_t increment) { - if (!base::internal::sbrk_hooks_.empty() && increment != 0) { - InvokeSbrkHookSlow(result, increment); - } -} - -#endif /* _MALLOC_HOOK_INL_H_ */ |