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75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/trace_event/process_memory_maps.h"
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#include "base/format_macros.h"
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#include "base/strings/stringprintf.h"
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#include "base/trace_event/trace_event_argument.h"
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namespace base {
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namespace trace_event {
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// static
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const uint32 ProcessMemoryMaps::VMRegion::kProtectionFlagsRead = 4;
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const uint32 ProcessMemoryMaps::VMRegion::kProtectionFlagsWrite = 2;
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const uint32 ProcessMemoryMaps::VMRegion::kProtectionFlagsExec = 1;
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ProcessMemoryMaps::VMRegion::VMRegion()
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: start_address(0),
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size_in_bytes(0),
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protection_flags(0),
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byte_stats_private_dirty_resident(0),
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byte_stats_private_clean_resident(0),
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byte_stats_shared_dirty_resident(0),
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byte_stats_shared_clean_resident(0),
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byte_stats_swapped(0),
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byte_stats_proportional_resident(0) {
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}
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ProcessMemoryMaps::ProcessMemoryMaps() {
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}
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ProcessMemoryMaps::~ProcessMemoryMaps() {
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}
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void ProcessMemoryMaps::AsValueInto(TracedValue* value) const {
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static const char kHexFmt[] = "%" PRIx64;
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// Refer to the design doc goo.gl/sxfFY8 for the semantic of these fields.
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value->BeginArray("vm_regions");
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for (const auto& region : vm_regions_) {
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value->BeginDictionary();
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value->SetString("sa", StringPrintf(kHexFmt, region.start_address));
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value->SetString("sz", StringPrintf(kHexFmt, region.size_in_bytes));
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value->SetInteger("pf", region.protection_flags);
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value->SetString("mf", region.mapped_file);
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value->BeginDictionary("bs"); // byte stats
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value->SetString(
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"pss", StringPrintf(kHexFmt, region.byte_stats_proportional_resident));
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value->SetString(
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"pd", StringPrintf(kHexFmt, region.byte_stats_private_dirty_resident));
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value->SetString(
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"pc", StringPrintf(kHexFmt, region.byte_stats_private_clean_resident));
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value->SetString(
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"sd", StringPrintf(kHexFmt, region.byte_stats_shared_dirty_resident));
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value->SetString(
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"sc", StringPrintf(kHexFmt, region.byte_stats_shared_clean_resident));
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value->SetString("sw", StringPrintf(kHexFmt, region.byte_stats_swapped));
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value->EndDictionary();
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value->EndDictionary();
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}
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value->EndArray();
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}
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void ProcessMemoryMaps::Clear() {
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vm_regions_.clear();
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}
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} // namespace trace_event
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} // namespace base
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