1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/services/heap_profiling/heap_profiling_service.h"
#include <memory>
#include <utility>
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/memory/weak_ptr.h"
#include "base/task/thread_pool.h"
#include "components/services/heap_profiling/connection_manager.h"
#include "components/services/heap_profiling/public/mojom/heap_profiling_client.mojom.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "mojo/public/cpp/bindings/self_owned_receiver.h"
#include "mojo/public/cpp/system/platform_handle.h"
#include "services/resource_coordinator/public/mojom/memory_instrumentation/memory_instrumentation.mojom.h"
namespace heap_profiling {
namespace {
class ProfilingServiceImpl;
class ProfilingServiceImpl
: public mojom::ProfilingService,
public memory_instrumentation::mojom::HeapProfiler {
public:
ProfilingServiceImpl(
mojo::PendingReceiver<memory_instrumentation::mojom::HeapProfiler>
profiler_receiver,
mojo::PendingRemote<memory_instrumentation::mojom::HeapProfilerHelper>
helper)
: heap_profiler_receiver_(this, std::move(profiler_receiver)),
helper_(std::move(helper)) {}
ProfilingServiceImpl(const ProfilingServiceImpl&) = delete;
ProfilingServiceImpl& operator=(const ProfilingServiceImpl&) = delete;
~ProfilingServiceImpl() override = default;
// mojom::ProfilingService implementation:
void AddProfilingClient(base::ProcessId pid,
mojo::PendingRemote<mojom::ProfilingClient> client,
mojom::ProcessType process_type,
mojom::ProfilingParamsPtr params,
mojom::ProfilingService::AddProfilingClientCallback
started_profiling_closure) override {
if (params->sampling_rate == 0)
params->sampling_rate = 1;
connection_manager_.OnNewConnection(pid, std::move(client), process_type,
std::move(params),
std::move(started_profiling_closure));
}
void GetProfiledPids(GetProfiledPidsCallback callback) override {
std::move(callback).Run(connection_manager_.GetConnectionPids());
}
// memory_instrumentation::mojom::HeapProfiler implementation:
void DumpProcessesForTracing(
bool strip_path_from_mapped_files,
bool write_proto,
DumpProcessesForTracingCallback callback) override {
std::vector<base::ProcessId> pids =
connection_manager_.GetConnectionPidsThatNeedVmRegions();
if (pids.empty()) {
connection_manager_.DumpProcessesForTracing(
strip_path_from_mapped_files, write_proto, std::move(callback),
VmRegions());
return;
}
// Need a memory map to make sense of the dump. The dump will be triggered
// in the memory map global dump callback.
helper_->GetVmRegionsForHeapProfiler(
pids,
base::BindOnce(&ProfilingServiceImpl::
OnGetVmRegionsCompleteForDumpProcessesForTracing,
weak_factory_.GetWeakPtr(), strip_path_from_mapped_files,
write_proto, std::move(callback)));
}
private:
void OnGetVmRegionsCompleteForDumpProcessesForTracing(
bool strip_path_from_mapped_files,
bool write_proto,
DumpProcessesForTracingCallback callback,
VmRegions vm_regions) {
connection_manager_.DumpProcessesForTracing(
strip_path_from_mapped_files, write_proto, std::move(callback),
std::move(vm_regions));
}
mojo::Receiver<memory_instrumentation::mojom::HeapProfiler>
heap_profiler_receiver_{this};
mojo::Remote<memory_instrumentation::mojom::HeapProfilerHelper> helper_;
ConnectionManager connection_manager_;
base::WeakPtrFactory<ProfilingServiceImpl> weak_factory_{this};
};
void RunHeapProfilingService(
mojo::PendingReceiver<mojom::ProfilingService> receiver,
mojo::PendingReceiver<memory_instrumentation::mojom::HeapProfiler>
profiler_receiver,
mojo::PendingRemote<memory_instrumentation::mojom::HeapProfilerHelper>
helper) {
mojo::MakeSelfOwnedReceiver(
std::make_unique<ProfilingServiceImpl>(std::move(profiler_receiver),
std::move(helper)),
std::move(receiver));
}
} // namespace
mojo::PendingRemote<mojom::ProfilingService> LaunchService(
mojo::PendingReceiver<memory_instrumentation::mojom::HeapProfiler>
profiler_receiver,
mojo::PendingRemote<memory_instrumentation::mojom::HeapProfilerHelper>
helper) {
mojo::PendingRemote<mojom::ProfilingService> remote;
auto task_runner = base::ThreadPool::CreateSingleThreadTaskRunner(
{base::TaskPriority::BEST_EFFORT, base::WithBaseSyncPrimitives()},
base::SingleThreadTaskRunnerThreadMode::DEDICATED);
task_runner->PostTask(
FROM_HERE,
base::BindOnce(&RunHeapProfilingService,
remote.InitWithNewPipeAndPassReceiver(),
std::move(profiler_receiver), std::move(helper)));
return remote;
}
} // namespace heap_profiling
|
