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// Copyright (c) 2012 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.
#include "base/allocator/allocator_extension.h"
#include "base/allocator/buildflags.h"
#include "base/logging.h"
#if BUILDFLAG(USE_TCMALLOC)
#include "third_party/tcmalloc/chromium/src/gperftools/heap-profiler.h"
#include "third_party/tcmalloc/chromium/src/gperftools/malloc_extension.h"
#include "third_party/tcmalloc/chromium/src/gperftools/malloc_hook.h"
#endif
namespace base {
namespace allocator {
void ReleaseFreeMemory() {
#if BUILDFLAG(USE_TCMALLOC)
::MallocExtension::instance()->ReleaseFreeMemory();
#endif
}
bool GetNumericProperty(const char* name, size_t* value) {
#if BUILDFLAG(USE_TCMALLOC)
return ::MallocExtension::instance()->GetNumericProperty(name, value);
#endif
return false;
}
bool SetNumericProperty(const char* name, size_t value) {
#if BUILDFLAG(USE_TCMALLOC)
return ::MallocExtension::instance()->SetNumericProperty(name, value);
#endif
return false;
}
void GetHeapSample(std::string* writer) {
#if BUILDFLAG(USE_TCMALLOC)
::MallocExtension::instance()->GetHeapSample(writer);
#endif
}
bool IsHeapProfilerRunning() {
#if BUILDFLAG(USE_TCMALLOC) && defined(ENABLE_PROFILING)
return ::IsHeapProfilerRunning();
#endif
return false;
}
void SetHooks(AllocHookFunc alloc_hook, FreeHookFunc free_hook) {
// TODO(sque): Use allocator shim layer instead.
#if BUILDFLAG(USE_TCMALLOC)
// Make sure no hooks get overwritten.
auto prev_alloc_hook = MallocHook::SetNewHook(alloc_hook);
if (alloc_hook)
DCHECK(!prev_alloc_hook);
auto prev_free_hook = MallocHook::SetDeleteHook(free_hook);
if (free_hook)
DCHECK(!prev_free_hook);
#endif
}
int GetCallStack(void** stack, int max_stack_size) {
#if BUILDFLAG(USE_TCMALLOC)
return MallocHook::GetCallerStackTrace(stack, max_stack_size, 0);
#endif
return 0;
}
} // namespace allocator
} // namespace base
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