1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/allocator/allocator_extension.h" 6 7 #include "base/logging.h" 8 9 #if defined(USE_TCMALLOC) 10 #include "third_party/tcmalloc/chromium/src/gperftools/heap-profiler.h" 11 #include "third_party/tcmalloc/chromium/src/gperftools/malloc_extension.h" 12 #include "third_party/tcmalloc/chromium/src/gperftools/malloc_hook.h" 13 #endif 14 15 namespace base { 16 namespace allocator { 17 18 void ReleaseFreeMemory() { 19 #if defined(USE_TCMALLOC) 20 ::MallocExtension::instance()->ReleaseFreeMemory(); 21 #endif 22 } 23 24 bool GetNumericProperty(const char* name, size_t* value) { 25 #if defined(USE_TCMALLOC) 26 return ::MallocExtension::instance()->GetNumericProperty(name, value); 27 #endif 28 return false; 29 } 30 31 bool IsHeapProfilerRunning() { 32 #if defined(USE_TCMALLOC) 33 return ::IsHeapProfilerRunning(); 34 #endif 35 return false; 36 } 37 38 void SetHooks(AllocHookFunc alloc_hook, FreeHookFunc free_hook) { 39 // TODO(sque): Use allocator shim layer instead. 40 #if defined(USE_TCMALLOC) 41 // Make sure no hooks get overwritten. 42 auto prev_alloc_hook = MallocHook::SetNewHook(alloc_hook); 43 if (alloc_hook) 44 DCHECK(!prev_alloc_hook); 45 46 auto prev_free_hook = MallocHook::SetDeleteHook(free_hook); 47 if (free_hook) 48 DCHECK(!prev_free_hook); 49 #endif 50 } 51 52 int GetCallStack(void** stack, int max_stack_size) { 53 #if defined(USE_TCMALLOC) 54 return MallocHook::GetCallerStackTrace(stack, max_stack_size, 0); 55 #endif 56 return 0; 57 } 58 59 } // namespace allocator 60 } // namespace base 61
