1 // Copyright 2015 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/trace_event/process_memory_totals.h"
6 
7 #include "base/format_macros.h"
8 #include "base/strings/stringprintf.h"
9 #include "base/trace_event/trace_event_argument.h"
10 
11 namespace base {
12 namespace trace_event {
13 
14 ProcessMemoryTotals::ProcessMemoryTotals()
15     : resident_set_bytes_(0),
16       peak_resident_set_bytes_(0),
17       is_peak_rss_resetable_(false) {
18 }
19 
20 ProcessMemoryTotals::~ProcessMemoryTotals() {}
21 
22 void ProcessMemoryTotals::AsValueInto(TracedValue* value) const {
23   value->SetString("resident_set_bytes",
24                    StringPrintf("%" PRIx64, resident_set_bytes_));
25   if (peak_resident_set_bytes_ > 0) {
26     value->SetString("peak_resident_set_bytes",
27                      StringPrintf("%" PRIx64, peak_resident_set_bytes_));
28     value->SetBoolean("is_peak_rss_resetable", is_peak_rss_resetable_);
29   }
30 
31   for (const auto it : extra_fields_) {
32     value->SetString(it.first, StringPrintf("%" PRIx64, it.second));
33   }
34 }
35 
36 void ProcessMemoryTotals::Clear() {
37   resident_set_bytes_ = 0;
38 }
39 
40 void ProcessMemoryTotals::SetExtraFieldInBytes(const char* name,
41                                                uint64_t value) {
42   DCHECK_EQ(0u, extra_fields_.count(name));
43   extra_fields_[name] = value;
44 }
45 
46 }  // namespace trace_event
47 }  // namespace base
48