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Issue 12282019: Disable "using base::FilePath" on Linux since it now compiles. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 7 years, 10 months ago
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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.h" 5 #include "base/process.h"
6 6
7 #include <errno.h> 7 #include <errno.h>
8 #include <sys/resource.h> 8 #include <sys/resource.h>
9 9
10 #include "base/file_util.h" 10 #include "base/file_util.h"
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31 const char kBackground[] = "/chrome_renderers/background"; 31 const char kBackground[] = "/chrome_renderers/background";
32 const char kProcPath[] = "/proc/%d/cgroup"; 32 const char kProcPath[] = "/proc/%d/cgroup";
33 33
34 struct CGroups { 34 struct CGroups {
35 // Check for cgroups files. ChromeOS supports these by default. It creates 35 // Check for cgroups files. ChromeOS supports these by default. It creates
36 // a cgroup mount in /sys/fs/cgroup and then configures two cpu task groups, 36 // a cgroup mount in /sys/fs/cgroup and then configures two cpu task groups,
37 // one contains at most a single foreground renderer and the other contains 37 // one contains at most a single foreground renderer and the other contains
38 // all background renderers. This allows us to limit the impact of background 38 // all background renderers. This allows us to limit the impact of background
39 // renderers on foreground ones to a greater level than simple renicing. 39 // renderers on foreground ones to a greater level than simple renicing.
40 bool enabled; 40 bool enabled;
41 FilePath foreground_file; 41 base::FilePath foreground_file;
42 FilePath background_file; 42 base::FilePath background_file;
43 43
44 CGroups() { 44 CGroups() {
45 foreground_file = FilePath(StringPrintf(kControlPath, kForeground)); 45 foreground_file = base::FilePath(StringPrintf(kControlPath, kForeground));
46 background_file = FilePath(StringPrintf(kControlPath, kBackground)); 46 background_file = base::FilePath(StringPrintf(kControlPath, kBackground));
47 file_util::FileSystemType foreground_type; 47 file_util::FileSystemType foreground_type;
48 file_util::FileSystemType background_type; 48 file_util::FileSystemType background_type;
49 enabled = 49 enabled =
50 file_util::GetFileSystemType(foreground_file, &foreground_type) && 50 file_util::GetFileSystemType(foreground_file, &foreground_type) &&
51 file_util::GetFileSystemType(background_file, &background_type) && 51 file_util::GetFileSystemType(background_file, &background_type) &&
52 foreground_type == file_util::FILE_SYSTEM_CGROUP && 52 foreground_type == file_util::FILE_SYSTEM_CGROUP &&
53 background_type == file_util::FILE_SYSTEM_CGROUP; 53 background_type == file_util::FILE_SYSTEM_CGROUP;
54 } 54 }
55 }; 55 };
56 56
57 base::LazyInstance<CGroups> cgroups = LAZY_INSTANCE_INITIALIZER; 57 base::LazyInstance<CGroups> cgroups = LAZY_INSTANCE_INITIALIZER;
58 #else 58 #else
59 const int kBackgroundPriority = 5; 59 const int kBackgroundPriority = 5;
60 #endif 60 #endif
61 } 61 }
62 62
63 namespace base { 63 namespace base {
64 64
65 bool Process::IsProcessBackgrounded() const { 65 bool Process::IsProcessBackgrounded() const {
66 DCHECK(process_); 66 DCHECK(process_);
67 67
68 #if defined(OS_CHROMEOS) 68 #if defined(OS_CHROMEOS)
69 if (cgroups.Get().enabled) { 69 if (cgroups.Get().enabled) {
70 std::string proc; 70 std::string proc;
71 if (file_util::ReadFileToString( 71 if (file_util::ReadFileToString(
72 FilePath(StringPrintf(kProcPath, process_)), 72 base::FilePath(StringPrintf(kProcPath, process_)),
73 &proc)) { 73 &proc)) {
74 std::vector<std::string> proc_parts; 74 std::vector<std::string> proc_parts;
75 base::SplitString(proc, ':', &proc_parts); 75 base::SplitString(proc, ':', &proc_parts);
76 DCHECK(proc_parts.size() == 3); 76 DCHECK(proc_parts.size() == 3);
77 bool ret = proc_parts[2] == std::string(kBackground); 77 bool ret = proc_parts[2] == std::string(kBackground);
78 return ret; 78 return ret;
79 } else { 79 } else {
80 return false; 80 return false;
81 } 81 }
82 } 82 }
83 #endif 83 #endif
84 return GetPriority() == kBackgroundPriority; 84 return GetPriority() == kBackgroundPriority;
85 } 85 }
86 86
87 bool Process::SetProcessBackgrounded(bool background) { 87 bool Process::SetProcessBackgrounded(bool background) {
88 DCHECK(process_); 88 DCHECK(process_);
89 89
90 #if defined(OS_CHROMEOS) 90 #if defined(OS_CHROMEOS)
91 if (cgroups.Get().enabled) { 91 if (cgroups.Get().enabled) {
92 std::string pid = StringPrintf("%d", process_); 92 std::string pid = StringPrintf("%d", process_);
93 const FilePath file = 93 const base::FilePath file =
94 background ? 94 background ?
95 cgroups.Get().background_file : cgroups.Get().foreground_file; 95 cgroups.Get().background_file : cgroups.Get().foreground_file;
96 return file_util::WriteFile(file, pid.c_str(), pid.size()) > 0; 96 return file_util::WriteFile(file, pid.c_str(), pid.size()) > 0;
97 } 97 }
98 #endif // OS_CHROMEOS 98 #endif // OS_CHROMEOS
99 99
100 if (!CanBackgroundProcesses()) 100 if (!CanBackgroundProcesses())
101 return false; 101 return false;
102 102
103 int priority = background ? kBackgroundPriority : kForegroundPriority; 103 int priority = background ? kBackgroundPriority : kForegroundPriority;
(...skipping 22 matching lines...) Expand all
126 if (cgroups.Get().enabled) 126 if (cgroups.Get().enabled)
127 return true; 127 return true;
128 #endif 128 #endif
129 129
130 static LazyInstance<CheckForNicePermission> check_for_nice_permission = 130 static LazyInstance<CheckForNicePermission> check_for_nice_permission =
131 LAZY_INSTANCE_INITIALIZER; 131 LAZY_INSTANCE_INITIALIZER;
132 return check_for_nice_permission.Get().can_reraise_priority; 132 return check_for_nice_permission.Get().can_reraise_priority;
133 } 133 }
134 134
135 } // namespace base 135 } // namespace base
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