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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/common/child_process_info.h" | 5 #include "content/common/child_process_info.h" |
6 | 6 |
7 #include <limits> | 7 #include <limits> |
8 | 8 |
9 #include "base/atomicops.h" | 9 #include "base/atomicops.h" |
10 #include "base/i18n/rtl.h" | 10 #include "base/i18n/rtl.h" |
11 #include "base/logging.h" | 11 #include "base/logging.h" |
12 #include "base/process_util.h" | 12 #include "base/process_util.h" |
13 #include "base/rand_util.h" | 13 #include "base/rand_util.h" |
14 #include "base/stringprintf.h" | 14 #include "base/stringprintf.h" |
15 #include "base/utf_string_conversions.h" | 15 #include "base/utf_string_conversions.h" |
16 | 16 |
17 ChildProcessInfo::ChildProcessInfo(ProcessType type, int id) : | 17 ChildProcessInfo::ChildProcessInfo(content::ProcessType type, int id) : |
18 type_(type) { | 18 type_(type) { |
19 if (id == -1) | 19 if (id == -1) |
20 id_ = GenerateChildProcessUniqueId(); | 20 id_ = GenerateChildProcessUniqueId(); |
21 else | 21 else |
22 id_ = id; | 22 id_ = id; |
23 } | 23 } |
24 | 24 |
25 ChildProcessInfo::ChildProcessInfo(const ChildProcessInfo& original) | 25 ChildProcessInfo::ChildProcessInfo(const ChildProcessInfo& original) |
26 : type_(original.type_), | 26 : type_(original.type_), |
27 name_(original.name_), | 27 name_(original.name_), |
(...skipping 12 matching lines...) Expand all Loading... |
40 name_ = original.name_; | 40 name_ = original.name_; |
41 version_ = original.version_; | 41 version_ = original.version_; |
42 id_ = original.id_; | 42 id_ = original.id_; |
43 process_ = original.process_; | 43 process_ = original.process_; |
44 } | 44 } |
45 return *this; | 45 return *this; |
46 } | 46 } |
47 | 47 |
48 // static | 48 // static |
49 std::string ChildProcessInfo::GetTypeNameInEnglish( | 49 std::string ChildProcessInfo::GetTypeNameInEnglish( |
50 ChildProcessInfo::ProcessType type) { | 50 content::ProcessType type) { |
51 switch (type) { | 51 switch (type) { |
52 case BROWSER_PROCESS: | 52 case content::PROCESS_TYPE_BROWSER: |
53 return "Browser"; | 53 return "Browser"; |
54 case RENDER_PROCESS: | 54 case content::PROCESS_TYPE_RENDERER: |
55 return "Tab"; | 55 return "Tab"; |
56 case PLUGIN_PROCESS: | 56 case content::PROCESS_TYPE_PLUGIN: |
57 return "Plug-in"; | 57 return "Plug-in"; |
58 case WORKER_PROCESS: | 58 case content::PROCESS_TYPE_WORKER: |
59 return "Web Worker"; | 59 return "Web Worker"; |
60 case UTILITY_PROCESS: | 60 case content::PROCESS_TYPE_UTILITY: |
61 return "Utility"; | 61 return "Utility"; |
62 case PROFILE_IMPORT_PROCESS: | 62 case content::PROCESS_TYPE_PROFILE_IMPORT: |
63 return "Profile Import helper"; | 63 return "Profile Import helper"; |
64 case ZYGOTE_PROCESS: | 64 case content::PROCESS_TYPE_ZYGOTE: |
65 return "Zygote"; | 65 return "Zygote"; |
66 case SANDBOX_HELPER_PROCESS: | 66 case content::PROCESS_TYPE_SANDBOX_HELPER: |
67 return "Sandbox helper"; | 67 return "Sandbox helper"; |
68 case NACL_LOADER_PROCESS: | 68 case content::PROCESS_TYPE_NACL_LOADER: |
69 return "Native Client module"; | 69 return "Native Client module"; |
70 case NACL_BROKER_PROCESS: | 70 case content::PROCESS_TYPE_NACL_BROKER: |
71 return "Native Client broker"; | 71 return "Native Client broker"; |
72 case GPU_PROCESS: | 72 case content::PROCESS_TYPE_GPU: |
73 return "GPU"; | 73 return "GPU"; |
74 case PPAPI_PLUGIN_PROCESS: | 74 case content::PROCESS_TYPE_PPAPI_PLUGIN: |
75 return "Pepper Plugin"; | 75 return "Pepper Plugin"; |
76 case PPAPI_BROKER_PROCESS: | 76 case content::PROCESS_TYPE_PPAPI_BROKER: |
77 return "Pepper Plugin Broker"; | 77 return "Pepper Plugin Broker"; |
78 case UNKNOWN_PROCESS: | 78 case content::PROCESS_TYPE_UNKNOWN: |
79 default: | 79 default: |
80 DCHECK(false) << "Unknown child process type!"; | 80 DCHECK(false) << "Unknown child process type!"; |
81 return "Unknown"; | 81 return "Unknown"; |
82 } | 82 } |
83 } | 83 } |
84 | 84 |
85 std::string ChildProcessInfo::GenerateRandomChannelID(void* instance) { | 85 std::string ChildProcessInfo::GenerateRandomChannelID(void* instance) { |
86 // Note: the string must start with the current process id, this is how | 86 // Note: the string must start with the current process id, this is how |
87 // child processes determine the pid of the parent. | 87 // child processes determine the pid of the parent. |
88 // Build the channel ID. This is composed of a unique identifier for the | 88 // Build the channel ID. This is composed of a unique identifier for the |
89 // parent browser process, an identifier for the child instance, and a random | 89 // parent browser process, an identifier for the child instance, and a random |
90 // component. We use a random component so that a hacked child process can't | 90 // component. We use a random component so that a hacked child process can't |
91 // cause denial of service by causing future named pipe creation to fail. | 91 // cause denial of service by causing future named pipe creation to fail. |
92 return base::StringPrintf("%d.%p.%d", | 92 return base::StringPrintf("%d.%p.%d", |
93 base::GetCurrentProcId(), instance, | 93 base::GetCurrentProcId(), instance, |
94 base::RandInt(0, std::numeric_limits<int>::max())); | 94 base::RandInt(0, std::numeric_limits<int>::max())); |
95 } | 95 } |
96 | 96 |
97 // static | 97 // static |
98 int ChildProcessInfo::GenerateChildProcessUniqueId() { | 98 int ChildProcessInfo::GenerateChildProcessUniqueId() { |
99 // This function must be threadsafe. | 99 // This function must be threadsafe. |
100 static base::subtle::Atomic32 last_unique_child_id = 0; | 100 static base::subtle::Atomic32 last_unique_child_id = 0; |
101 return base::subtle::NoBarrier_AtomicIncrement(&last_unique_child_id, 1); | 101 return base::subtle::NoBarrier_AtomicIncrement(&last_unique_child_id, 1); |
102 } | 102 } |
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