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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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/linux_util.h" | 5 #include "base/linux_util.h" |
6 | 6 |
7 #include <dirent.h> | 7 #include <dirent.h> |
8 #include <errno.h> | 8 #include <errno.h> |
9 #include <fcntl.h> | 9 #include <fcntl.h> |
10 #include <limits.h> | 10 #include <limits.h> |
11 #include <stdlib.h> | 11 #include <stdlib.h> |
12 #include <sys/stat.h> | 12 #include <sys/stat.h> |
13 #include <sys/types.h> | 13 #include <sys/types.h> |
14 #include <unistd.h> | 14 #include <unistd.h> |
15 | 15 |
| 16 #include <memory> |
16 #include <vector> | 17 #include <vector> |
17 | 18 |
18 #include "base/command_line.h" | 19 #include "base/command_line.h" |
19 #include "base/files/file_util.h" | 20 #include "base/files/file_util.h" |
20 #include "base/memory/scoped_ptr.h" | |
21 #include "base/memory/singleton.h" | 21 #include "base/memory/singleton.h" |
22 #include "base/process/launch.h" | 22 #include "base/process/launch.h" |
23 #include "base/strings/string_util.h" | 23 #include "base/strings/string_util.h" |
24 #include "base/synchronization/lock.h" | 24 #include "base/synchronization/lock.h" |
25 #include "build/build_config.h" | 25 #include "build/build_config.h" |
26 | 26 |
27 namespace { | 27 namespace { |
28 | 28 |
29 // Not needed for OS_CHROMEOS. | 29 // Not needed for OS_CHROMEOS. |
30 #if defined(OS_LINUX) | 30 #if defined(OS_LINUX) |
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148 struct dirent* dent; | 148 struct dirent* dent; |
149 while ((dent = readdir(task))) { | 149 while ((dent = readdir(task))) { |
150 char* endptr; | 150 char* endptr; |
151 const unsigned long int tid_ul = strtoul(dent->d_name, &endptr, 10); | 151 const unsigned long int tid_ul = strtoul(dent->d_name, &endptr, 10); |
152 if (tid_ul == ULONG_MAX || *endptr) | 152 if (tid_ul == ULONG_MAX || *endptr) |
153 continue; | 153 continue; |
154 tids.push_back(tid_ul); | 154 tids.push_back(tid_ul); |
155 } | 155 } |
156 closedir(task); | 156 closedir(task); |
157 | 157 |
158 scoped_ptr<char[]> syscall_data(new char[expected_data.length()]); | 158 std::unique_ptr<char[]> syscall_data(new char[expected_data.length()]); |
159 for (std::vector<pid_t>::const_iterator | 159 for (std::vector<pid_t>::const_iterator |
160 i = tids.begin(); i != tids.end(); ++i) { | 160 i = tids.begin(); i != tids.end(); ++i) { |
161 const pid_t current_tid = *i; | 161 const pid_t current_tid = *i; |
162 snprintf(buf, sizeof(buf), "/proc/%d/task/%d/syscall", pid, current_tid); | 162 snprintf(buf, sizeof(buf), "/proc/%d/task/%d/syscall", pid, current_tid); |
163 int fd = open(buf, O_RDONLY); | 163 int fd = open(buf, O_RDONLY); |
164 if (fd < 0) | 164 if (fd < 0) |
165 continue; | 165 continue; |
166 if (syscall_supported != NULL) | 166 if (syscall_supported != NULL) |
167 *syscall_supported = true; | 167 *syscall_supported = true; |
168 bool read_ret = ReadFromFD(fd, syscall_data.get(), expected_data.length()); | 168 bool read_ret = ReadFromFD(fd, syscall_data.get(), expected_data.length()); |
169 close(fd); | 169 close(fd); |
170 if (!read_ret) | 170 if (!read_ret) |
171 continue; | 171 continue; |
172 | 172 |
173 if (0 == strncmp(expected_data.c_str(), syscall_data.get(), | 173 if (0 == strncmp(expected_data.c_str(), syscall_data.get(), |
174 expected_data.length())) { | 174 expected_data.length())) { |
175 return current_tid; | 175 return current_tid; |
176 } | 176 } |
177 } | 177 } |
178 return -1; | 178 return -1; |
179 } | 179 } |
180 | 180 |
181 } // namespace base | 181 } // namespace base |
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