mirror of
https://github.com/dart-lang/sdk
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80 lines
1.8 KiB
C++
80 lines
1.8 KiB
C++
// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "platform/globals.h"
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#if defined(DART_USE_JEMALLOC) && !defined(PRODUCT)
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#include "vm/malloc_hooks.h"
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#include <jemalloc/jemalloc.h>
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#include "vm/json_stream.h"
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namespace dart {
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void MallocHooks::InitOnce() {
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// Do nothing.
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}
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void MallocHooks::TearDown() {
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// Do nothing.
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}
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void MallocHooks::PrintToJSONObject(JSONObject* jsobj) {
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// Here, we ignore the value of FLAG_profiler_native_memory because we can
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// gather this information cheaply without hooking into every call to the
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// malloc library.
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jsobj->AddProperty("_heapAllocatedMemoryUsage",
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heap_allocated_memory_in_bytes());
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jsobj->AddProperty("_heapAllocationCount", allocation_count());
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}
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intptr_t MallocHooks::heap_allocated_memory_in_bytes() {
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uint64_t epoch = 1;
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size_t epoch_sz = sizeof(epoch);
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int result = mallctl("epoch", &epoch, &epoch_sz, &epoch, epoch_sz);
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if (result != 0) {
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return 0;
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}
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intptr_t allocated;
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size_t allocated_sz = sizeof(allocated);
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result = mallctl("stats.allocated", &allocated, &allocated_sz, NULL, 0);
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if (result != 0) {
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return 0;
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}
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return allocated;
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}
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intptr_t MallocHooks::allocation_count() {
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return 0;
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}
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bool MallocHooks::ProfilingEnabled() {
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return false;
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}
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bool MallocHooks::stack_trace_collection_enabled() {
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return false;
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}
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void MallocHooks::set_stack_trace_collection_enabled(bool enabled) {
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// Do nothing.
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}
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void MallocHooks::ResetStats() {
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// Do nothing.
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}
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bool MallocHooks::Active() {
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return false;
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}
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Sample* MallocHooks::GetSample(const void* ptr) {
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return NULL;
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}
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} // namespace dart
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#endif // defined(DART_USE_JEMALLOC) && ...
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