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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/sys_info.h" | 5 #include "base/sys_info.h" |
6 | 6 |
7 #include <sys/param.h> | 7 #include <sys/param.h> |
8 #include <sys/shm.h> | 8 #include <sys/shm.h> |
9 #include <sys/sysctl.h> | 9 #include <sys/sysctl.h> |
10 | 10 |
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41 // static | 41 // static |
42 int64 SysInfo::AmountOfPhysicalMemory() { | 42 int64 SysInfo::AmountOfPhysicalMemory() { |
43 return AmountOfMemory(_SC_PHYS_PAGES); | 43 return AmountOfMemory(_SC_PHYS_PAGES); |
44 } | 44 } |
45 | 45 |
46 // static | 46 // static |
47 int64 SysInfo::AmountOfAvailablePhysicalMemory() { | 47 int64 SysInfo::AmountOfAvailablePhysicalMemory() { |
48 return AmountOfMemory(_SC_AVPHYS_PAGES); | 48 return AmountOfMemory(_SC_AVPHYS_PAGES); |
49 } | 49 } |
50 | 50 |
| 51 bool SysInfo::HasSeekPenalty(const FilePath& path, bool* has_seek_penalty) { |
| 52 return false; |
| 53 } |
| 54 |
51 // static | 55 // static |
52 size_t SysInfo::MaxSharedMemorySize() { | 56 size_t SysInfo::MaxSharedMemorySize() { |
53 int mib[] = { CTL_KERN, KERN_SHMINFO, KERN_SHMINFO_SHMMAX }; | 57 int mib[] = { CTL_KERN, KERN_SHMINFO, KERN_SHMINFO_SHMMAX }; |
54 size_t limit; | 58 size_t limit; |
55 size_t size = sizeof(limit); | 59 size_t size = sizeof(limit); |
56 if (sysctl(mib, arraysize(mib), &limit, &size, NULL, 0) < 0) { | 60 if (sysctl(mib, arraysize(mib), &limit, &size, NULL, 0) < 0) { |
57 NOTREACHED(); | 61 NOTREACHED(); |
58 return 0; | 62 return 0; |
59 } | 63 } |
60 return limit; | 64 return limit; |
61 } | 65 } |
62 | 66 |
63 // static | 67 // static |
64 std::string SysInfo::CPUModelName() { | 68 std::string SysInfo::CPUModelName() { |
65 int mib[] = { CTL_HW, HW_MODEL }; | 69 int mib[] = { CTL_HW, HW_MODEL }; |
66 char name[256]; | 70 char name[256]; |
67 size_t len = arraysize(name); | 71 size_t len = arraysize(name); |
68 if (sysctl(mib, arraysize(mib), name, &len, NULL, 0) < 0) { | 72 if (sysctl(mib, arraysize(mib), name, &len, NULL, 0) < 0) { |
69 NOTREACHED(); | 73 NOTREACHED(); |
70 return std::string(); | 74 return std::string(); |
71 } | 75 } |
72 return name; | 76 return name; |
73 } | 77 } |
74 | 78 |
75 } // namespace base | 79 } // namespace base |
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