/src/mozilla-central/tools/profiler/gecko/ProfilerChild.cpp
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1 | | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
2 | | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
3 | | /* This Source Code Form is subject to the terms of the Mozilla Public |
4 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
5 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
6 | | |
7 | | #include "GeckoProfiler.h" |
8 | | #include "ProfilerChild.h" |
9 | | #include "nsThreadUtils.h" |
10 | | |
11 | | namespace mozilla { |
12 | | |
13 | | ProfilerChild::ProfilerChild() |
14 | | : mThread(NS_GetCurrentThread()) |
15 | | , mDestroyed(false) |
16 | 0 | { |
17 | 0 | MOZ_COUNT_CTOR(ProfilerChild); |
18 | 0 | } |
19 | | |
20 | | ProfilerChild::~ProfilerChild() |
21 | 0 | { |
22 | 0 | MOZ_COUNT_DTOR(ProfilerChild); |
23 | 0 | } |
24 | | |
25 | | mozilla::ipc::IPCResult |
26 | | ProfilerChild::RecvStart(const ProfilerInitParams& params) |
27 | 0 | { |
28 | 0 | nsTArray<const char*> filterArray; |
29 | 0 | for (size_t i = 0; i < params.filters().Length(); ++i) { |
30 | 0 | filterArray.AppendElement(params.filters()[i].get()); |
31 | 0 | } |
32 | 0 |
|
33 | 0 | profiler_start(params.entries(), params.interval(), |
34 | 0 | params.features(), |
35 | 0 | filterArray.Elements(), |
36 | 0 | filterArray.Length()); |
37 | 0 |
|
38 | 0 | return IPC_OK(); |
39 | 0 | } |
40 | | |
41 | | mozilla::ipc::IPCResult |
42 | | ProfilerChild::RecvEnsureStarted(const ProfilerInitParams& params) |
43 | 0 | { |
44 | 0 | nsTArray<const char*> filterArray; |
45 | 0 | for (size_t i = 0; i < params.filters().Length(); ++i) { |
46 | 0 | filterArray.AppendElement(params.filters()[i].get()); |
47 | 0 | } |
48 | 0 |
|
49 | 0 | profiler_ensure_started(params.entries(), params.interval(), |
50 | 0 | params.features(), |
51 | 0 | filterArray.Elements(), filterArray.Length()); |
52 | 0 |
|
53 | 0 | return IPC_OK(); |
54 | 0 | } |
55 | | |
56 | | mozilla::ipc::IPCResult |
57 | | ProfilerChild::RecvStop() |
58 | 0 | { |
59 | 0 | profiler_stop(); |
60 | 0 | return IPC_OK(); |
61 | 0 | } |
62 | | |
63 | | mozilla::ipc::IPCResult |
64 | | ProfilerChild::RecvPause() |
65 | 0 | { |
66 | 0 | profiler_pause(); |
67 | 0 | return IPC_OK(); |
68 | 0 | } |
69 | | |
70 | | mozilla::ipc::IPCResult |
71 | | ProfilerChild::RecvResume() |
72 | 0 | { |
73 | 0 | profiler_resume(); |
74 | 0 | return IPC_OK(); |
75 | 0 | } |
76 | | |
77 | | static nsCString |
78 | | CollectProfileOrEmptyString(bool aIsShuttingDown) |
79 | 0 | { |
80 | 0 | nsCString profileCString; |
81 | 0 | UniquePtr<char[]> profile = |
82 | 0 | profiler_get_profile(/* aSinceTime */ 0, aIsShuttingDown); |
83 | 0 | if (profile) { |
84 | 0 | profileCString = nsCString(profile.get(), strlen(profile.get())); |
85 | 0 | } else { |
86 | 0 | profileCString = EmptyCString(); |
87 | 0 | } |
88 | 0 | return profileCString; |
89 | 0 | } |
90 | | |
91 | | mozilla::ipc::IPCResult |
92 | | ProfilerChild::RecvGatherProfile(GatherProfileResolver&& aResolve) |
93 | 0 | { |
94 | 0 | mozilla::ipc::Shmem shmem; |
95 | 0 | profiler_get_profile_json_into_lazily_allocated_buffer( |
96 | 0 | [&](size_t allocationSize) -> char* { |
97 | 0 | if (AllocShmem(allocationSize, |
98 | 0 | mozilla::ipc::Shmem::SharedMemory::TYPE_BASIC, |
99 | 0 | &shmem)) { |
100 | 0 | return shmem.get<char>(); |
101 | 0 | } |
102 | 0 | return nullptr; |
103 | 0 | }, |
104 | 0 | /* aSinceTime */ 0, |
105 | 0 | /* aIsShuttingDown */ false); |
106 | 0 | aResolve(std::move(shmem)); |
107 | 0 | return IPC_OK(); |
108 | 0 | } |
109 | | |
110 | | void |
111 | | ProfilerChild::ActorDestroy(ActorDestroyReason aActorDestroyReason) |
112 | 0 | { |
113 | 0 | mDestroyed = true; |
114 | 0 | } |
115 | | |
116 | | void |
117 | | ProfilerChild::Destroy() |
118 | 0 | { |
119 | 0 | if (!mDestroyed) { |
120 | 0 | Close(); |
121 | 0 | } |
122 | 0 | } |
123 | | |
124 | | nsCString |
125 | | ProfilerChild::GrabShutdownProfile() |
126 | 0 | { |
127 | 0 | return CollectProfileOrEmptyString(/* aIsShuttingDown */ true); |
128 | 0 | } |
129 | | |
130 | | } // namespace mozilla |