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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 "base/process_util.h" | 5 #include "base/process_util.h" |
6 | 6 |
7 #include <ctype.h> | 7 #include <ctype.h> |
8 #include <dirent.h> | 8 #include <dirent.h> |
9 #include <dlfcn.h> | 9 #include <dlfcn.h> |
10 #include <errno.h> | 10 #include <errno.h> |
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57 int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_UID, getuid(), | 57 int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_UID, getuid(), |
58 sizeof(struct kinfo_proc), 0 }; | 58 sizeof(struct kinfo_proc), 0 }; |
59 | 59 |
60 bool done = false; | 60 bool done = false; |
61 int try_num = 1; | 61 int try_num = 1; |
62 const int max_tries = 10; | 62 const int max_tries = 10; |
63 | 63 |
64 do { | 64 do { |
65 size_t len = 0; | 65 size_t len = 0; |
66 if (sysctl(mib, arraysize(mib), NULL, &len, NULL, 0) < 0) { | 66 if (sysctl(mib, arraysize(mib), NULL, &len, NULL, 0) < 0) { |
67 LOG(ERROR) << "failed to get the size needed for the process list"; | 67 DLOG(ERROR) << "failed to get the size needed for the process list"; |
68 kinfo_procs_.resize(0); | 68 kinfo_procs_.resize(0); |
69 done = true; | 69 done = true; |
70 } else { | 70 } else { |
71 size_t num_of_kinfo_proc = len / sizeof(struct kinfo_proc); | 71 size_t num_of_kinfo_proc = len / sizeof(struct kinfo_proc); |
72 // Leave some spare room for process table growth (more could show up | 72 // Leave some spare room for process table growth (more could show up |
73 // between when we check and now) | 73 // between when we check and now) |
74 num_of_kinfo_proc += 16; | 74 num_of_kinfo_proc += 16; |
75 kinfo_procs_.resize(num_of_kinfo_proc); | 75 kinfo_procs_.resize(num_of_kinfo_proc); |
76 len = num_of_kinfo_proc * sizeof(struct kinfo_proc); | 76 len = num_of_kinfo_proc * sizeof(struct kinfo_proc); |
77 if (sysctl(mib, arraysize(mib), &kinfo_procs_[0], &len, NULL, 0) < 0) { | 77 if (sysctl(mib, arraysize(mib), &kinfo_procs_[0], &len, NULL, 0) < 0) { |
78 // If we get a mem error, it just means we need a bigger buffer, so | 78 // If we get a mem error, it just means we need a bigger buffer, so |
79 // loop around again. Anything else is a real error and give up. | 79 // loop around again. Anything else is a real error and give up. |
80 if (errno != ENOMEM) { | 80 if (errno != ENOMEM) { |
81 LOG(ERROR) << "failed to get the process list"; | 81 DLOG(ERROR) << "failed to get the process list"; |
82 kinfo_procs_.resize(0); | 82 kinfo_procs_.resize(0); |
83 done = true; | 83 done = true; |
84 } | 84 } |
85 } else { | 85 } else { |
86 // Got the list, just make sure we're sized exactly right | 86 // Got the list, just make sure we're sized exactly right |
87 size_t num_of_kinfo_proc = len / sizeof(struct kinfo_proc); | 87 size_t num_of_kinfo_proc = len / sizeof(struct kinfo_proc); |
88 kinfo_procs_.resize(num_of_kinfo_proc); | 88 kinfo_procs_.resize(num_of_kinfo_proc); |
89 done = true; | 89 done = true; |
90 } | 90 } |
91 } | 91 } |
92 } while (!done && (try_num++ < max_tries)); | 92 } while (!done && (try_num++ < max_tries)); |
93 | 93 |
94 if (!done) { | 94 if (!done) { |
95 LOG(ERROR) << "failed to collect the process list in a few tries"; | 95 DDLOG(ERROR) << "failed to collect the process list in a few tries"; |
96 kinfo_procs_.resize(0); | 96 kinfo_procs_.resize(0); |
97 } | 97 } |
98 } | 98 } |
99 | 99 |
100 ProcessIterator::~ProcessIterator() { | 100 ProcessIterator::~ProcessIterator() { |
101 } | 101 } |
102 | 102 |
103 bool ProcessIterator::CheckForNextProcess() { | 103 bool ProcessIterator::CheckForNextProcess() { |
104 std::string data; | 104 std::string data; |
105 for (; index_of_kinfo_proc_ < kinfo_procs_.size(); ++index_of_kinfo_proc_) { | 105 for (; index_of_kinfo_proc_ < kinfo_procs_.size(); ++index_of_kinfo_proc_) { |
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130 // |entry_.cmd_line_args_|. | 130 // |entry_.cmd_line_args_|. |
131 std::string delimiters; | 131 std::string delimiters; |
132 delimiters.push_back('\0'); | 132 delimiters.push_back('\0'); |
133 Tokenize(data, delimiters, &entry_.cmd_line_args_); | 133 Tokenize(data, delimiters, &entry_.cmd_line_args_); |
134 | 134 |
135 // |data| starts with the full executable path followed by a null character. | 135 // |data| starts with the full executable path followed by a null character. |
136 // We search for the first instance of '\0' and extract everything before it | 136 // We search for the first instance of '\0' and extract everything before it |
137 // to populate |entry_.exe_file_|. | 137 // to populate |entry_.exe_file_|. |
138 size_t exec_name_end = data.find('\0'); | 138 size_t exec_name_end = data.find('\0'); |
139 if (exec_name_end == std::string::npos) { | 139 if (exec_name_end == std::string::npos) { |
140 LOG(ERROR) << "command line data didn't match expected format"; | 140 DLOG(ERROR) << "command line data didn't match expected format"; |
141 continue; | 141 continue; |
142 } | 142 } |
143 | 143 |
144 entry_.pid_ = kinfo.p_pid; | 144 entry_.pid_ = kinfo.p_pid; |
145 entry_.ppid_ = kinfo.p_ppid; | 145 entry_.ppid_ = kinfo.p_ppid; |
146 entry_.gid_ = kinfo.p__pgid; | 146 entry_.gid_ = kinfo.p__pgid; |
147 size_t last_slash = data.rfind('/', exec_name_end); | 147 size_t last_slash = data.rfind('/', exec_name_end); |
148 if (last_slash == std::string::npos) | 148 if (last_slash == std::string::npos) |
149 entry_.exe_file_.assign(data, 0, exec_name_end); | 149 entry_.exe_file_.assign(data, 0, exec_name_end); |
150 else | 150 else |
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322 return mem_total - (mem_free*pagesize) - (mem_inactive*pagesize); | 322 return mem_total - (mem_free*pagesize) - (mem_inactive*pagesize); |
323 } | 323 } |
324 | 324 |
325 void EnableTerminationOnOutOfMemory() { | 325 void EnableTerminationOnOutOfMemory() { |
326 } | 326 } |
327 | 327 |
328 void EnableTerminationOnHeapCorruption() { | 328 void EnableTerminationOnHeapCorruption() { |
329 } | 329 } |
330 | 330 |
331 } // namespace base | 331 } // namespace base |
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