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📄 allocator_config.h(2.57 KB)
📄 atomic_helpers.h(4.16 KB)
📄 bytemap.h(992 B)
📄 checksum.cpp(2.52 KB)
📄 checksum.h(1.67 KB)
📄 chunk.h(5.83 KB)
📄 combined.h(40.99 KB)
📄 common.cpp(874 B)
📄 common.h(5.29 KB)
📄 crc32_hw.cpp(656 B)
📄 flags.cpp(2.09 KB)
📄 flags.h(975 B)
📄 flags.inc(2.41 KB)
📄 flags_parser.cpp(4.38 KB)
📄 flags_parser.h(1.23 KB)
📄 fuchsia.cpp(6.04 KB)
📄 fuchsia.h(695 B)
📁 fuzz
📁 include
📄 internal_defs.h(4.61 KB)
📄 linux.cpp(6.1 KB)
📄 linux.h(2.77 KB)
📄 list.h(4.95 KB)
📄 local_cache.h(5.21 KB)
📄 memtag.h(7.21 KB)
📄 mutex.h(1.69 KB)
📄 platform.h(2.03 KB)
📄 primary32.h(18.05 KB)
📄 primary64.h(17.3 KB)
📄 quarantine.h(9.64 KB)
📄 release.cpp(522 B)
📄 release.h(10.27 KB)
📄 report.cpp(6.62 KB)
📄 report.h(1.97 KB)
📄 secondary.h(13.22 KB)
📄 size_class_map.h(9.9 KB)
📄 stack_depot.h(4.47 KB)
📄 stats.h(2.77 KB)
📄 string_utils.cpp(7.93 KB)
📄 string_utils.h(1.05 KB)
📄 tsd.h(1.84 KB)
📄 tsd_exclusive.h(4.03 KB)
📄 tsd_shared.h(5.53 KB)
📄 vector.h(3.07 KB)
📄 wrappers_c.cpp(1.19 KB)
📄 wrappers_c.h(1.46 KB)
📄 wrappers_c.inc(8.6 KB)
📄 wrappers_c_bionic.cpp(2.23 KB)
📄 wrappers_c_checks.h(1.99 KB)
📄 wrappers_cpp.cpp(4.53 KB)

Editing: tsd.h

//===-- tsd.h ---------------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef SCUDO_TSD_H_
#define SCUDO_TSD_H_

#include "atomic_helpers.h"
#include "common.h"
#include "mutex.h"

#include <limits.h> // for PTHREAD_DESTRUCTOR_ITERATIONS
#include <pthread.h>

// With some build setups, this might still not be defined.
#ifndef PTHREAD_DESTRUCTOR_ITERATIONS
#define PTHREAD_DESTRUCTOR_ITERATIONS 4
#endif

namespace scudo {

template <class Allocator> struct alignas(SCUDO_CACHE_LINE_SIZE) TSD {
  typename Allocator::CacheT Cache;
  typename Allocator::QuarantineCacheT QuarantineCache;
  u8 DestructorIterations;

void initLinkerInitialized(Allocator *Instance) {
    Instance->initCache(&Cache);
    DestructorIterations = PTHREAD_DESTRUCTOR_ITERATIONS;
  }
  void init(Allocator *Instance) {
    memset(this, 0, sizeof(*this));
    initLinkerInitialized(Instance);
  }

void commitBack(Allocator *Instance) { Instance->commitBack(this); }

inline bool tryLock() {
    if (Mutex.tryLock()) {
      atomic_store_relaxed(&Precedence, 0);
      return true;
    }
    if (atomic_load_relaxed(&Precedence) == 0)
      atomic_store_relaxed(
          &Precedence,
          static_cast<uptr>(getMonotonicTime() >> FIRST_32_SECOND_64(16, 0)));
    return false;
  }
  inline void lock() {
    atomic_store_relaxed(&Precedence, 0);
    Mutex.lock();
  }
  inline void unlock() { Mutex.unlock(); }
  inline uptr getPrecedence() { return atomic_load_relaxed(&Precedence); }

private:
  HybridMutex Mutex;
  atomic_uptr Precedence;
};

} // namespace scudo

#endif // SCUDO_TSD_H_

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