chromium/third_party/protobuf/src/google/protobuf/arena.cc

// Protocol Buffers - Google's data interchange format
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#include <google/protobuf/arena.h>

#include <algorithm>
#include <atomic>
#include <cstddef>
#include <cstdint>
#include <limits>
#include <typeinfo>

#include <google/protobuf/arena_impl.h>
#include <google/protobuf/arenaz_sampler.h>
#include <google/protobuf/port.h>

#include <google/protobuf/stubs/mutex.h>
#ifdef ADDRESS_SANITIZER
#include <sanitizer/asan_interface.h>
#endif  // ADDRESS_SANITIZER

// Must be included last.
#include <google/protobuf/port_def.inc>

namespace google {
namespace protobuf {
namespace internal {

static SerialArena::Memory AllocateMemory(const AllocationPolicy* policy_ptr,
                                          size_t last_size, size_t min_bytes) { … }

class GetDeallocator { … };

SerialArena::SerialArena(Block* b, void* owner, ThreadSafeArenaStats* stats)
    : … { … }

SerialArena* SerialArena::New(Memory mem, void* owner,
                              ThreadSafeArenaStats* stats) { … }

template <typename Deallocator>
SerialArena::Memory SerialArena::Free(Deallocator deallocator) { … }

PROTOBUF_NOINLINE
std::pair<void*, SerialArena::CleanupNode*>
SerialArena::AllocateAlignedWithCleanupFallback(
    size_t n, const AllocationPolicy* policy) { … }

PROTOBUF_NOINLINE
void* SerialArena::AllocateAlignedFallback(size_t n,
                                           const AllocationPolicy* policy) { … }

void SerialArena::AllocateNewBlock(size_t n, const AllocationPolicy* policy) { … }

uint64_t SerialArena::SpaceUsed() const { … }

void SerialArena::CleanupList() { … }


ThreadSafeArena::CacheAlignedLifecycleIdGenerator
    ThreadSafeArena::lifecycle_id_generator_;
#if defined(GOOGLE_PROTOBUF_NO_THREADLOCAL)
ThreadSafeArena::ThreadCache& ThreadSafeArena::thread_cache() {
  static internal::ThreadLocalStorage<ThreadCache>* thread_cache_ =
      new internal::ThreadLocalStorage<ThreadCache>();
  return *thread_cache_->Get();
}
#elif defined(PROTOBUF_USE_DLLS)
ThreadSafeArena::ThreadCache& ThreadSafeArena::thread_cache() {
  static PROTOBUF_THREAD_LOCAL ThreadCache thread_cache_ = {
      0, static_cast<LifecycleIdAtomic>(-1), nullptr};
  return thread_cache_;
}
#else
PROTOBUF_THREAD_LOCAL ThreadSafeArena::ThreadCache
    ThreadSafeArena::thread_cache_ = …;
#endif

void ThreadSafeArena::InitializeFrom(void* mem, size_t size) { … }

void ThreadSafeArena::InitializeWithPolicy(void* mem, size_t size,
                                           AllocationPolicy policy) { … }

void ThreadSafeArena::Init() { … }

void ThreadSafeArena::SetInitialBlock(void* mem, size_t size) { … }

ThreadSafeArena::~ThreadSafeArena() { … }

SerialArena::Memory ThreadSafeArena::Free(size_t* space_allocated) { … }

uint64_t ThreadSafeArena::Reset() { … }

std::pair<void*, SerialArena::CleanupNode*>
ThreadSafeArena::AllocateAlignedWithCleanup(size_t n,
                                            const std::type_info* type) { … }

void ThreadSafeArena::AddCleanup(void* elem, void (*cleanup)(void*)) { … }

PROTOBUF_NOINLINE
void* ThreadSafeArena::AllocateAlignedFallback(size_t n,
                                               const std::type_info* type) { … }

PROTOBUF_NOINLINE
std::pair<void*, SerialArena::CleanupNode*>
ThreadSafeArena::AllocateAlignedWithCleanupFallback(
    size_t n, const std::type_info* type) { … }

uint64_t ThreadSafeArena::SpaceAllocated() const { … }

uint64_t ThreadSafeArena::SpaceUsed() const { … }

void ThreadSafeArena::CleanupList() { … }

PROTOBUF_NOINLINE
SerialArena* ThreadSafeArena::GetSerialArenaFallback(void* me) { … }

}  // namespace internal

PROTOBUF_FUNC_ALIGN(32)
void* Arena::AllocateAlignedNoHook(size_t n) { … }

PROTOBUF_FUNC_ALIGN(32)
void* Arena::AllocateAlignedWithHook(size_t n, const std::type_info* type) { … }

PROTOBUF_FUNC_ALIGN(32)
void* Arena::AllocateAlignedWithHookForArray(size_t n,
                                             const std::type_info* type) { … }

PROTOBUF_FUNC_ALIGN(32)
std::pair<void*, internal::SerialArena::CleanupNode*>
Arena::AllocateAlignedWithCleanup(size_t n, const std::type_info* type) { … }

}  // namespace protobuf
}  // namespace google

#include <google/protobuf/port_undef.inc>