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Side by Side Diff: base/process/memory.h

Issue 1446363003: Deleted OS_WIN and all Windows specific files from base. (Closed) Base URL: https://github.com/domokit/mojo.git@base_tests
Patch Set: Created 5 years, 1 month ago
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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2013 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 #ifndef BASE_PROCESS_MEMORY_H_ 5 #ifndef BASE_PROCESS_MEMORY_H_
6 #define BASE_PROCESS_MEMORY_H_ 6 #define BASE_PROCESS_MEMORY_H_
7 7
8 #include "base/base_export.h" 8 #include "base/base_export.h"
9 #include "base/basictypes.h" 9 #include "base/basictypes.h"
10 #include "base/process/process_handle.h" 10 #include "base/process/process_handle.h"
11 #include "build/build_config.h" 11 #include "build/build_config.h"
12 12
13 #if defined(OS_WIN)
14 #include <windows.h>
15 #endif
16
17 #ifdef PVALLOC_AVAILABLE 13 #ifdef PVALLOC_AVAILABLE
18 // Build config explicitly tells us whether or not pvalloc is available. 14 // Build config explicitly tells us whether or not pvalloc is available.
19 #elif defined(LIBC_GLIBC) && !defined(USE_TCMALLOC) 15 #elif defined(LIBC_GLIBC) && !defined(USE_TCMALLOC)
20 #define PVALLOC_AVAILABLE 1 16 #define PVALLOC_AVAILABLE 1
21 #else 17 #else
22 #define PVALLOC_AVAILABLE 0 18 #define PVALLOC_AVAILABLE 0
23 #endif 19 #endif
24 20
25 namespace base { 21 namespace base {
26 22
27 // Enables low fragmentation heap (LFH) for every heaps of this process. This 23 // Enables low fragmentation heap (LFH) for every heaps of this process. This
28 // won't have any effect on heaps created after this function call. It will not 24 // won't have any effect on heaps created after this function call. It will not
29 // modify data allocated in the heaps before calling this function. So it is 25 // modify data allocated in the heaps before calling this function. So it is
30 // better to call this function early in initialization and again before 26 // better to call this function early in initialization and again before
31 // entering the main loop. 27 // entering the main loop.
32 // Note: Returns true on Windows 2000 without doing anything. 28 // Note: Returns true on Windows 2000 without doing anything.
33 BASE_EXPORT bool EnableLowFragmentationHeap(); 29 BASE_EXPORT bool EnableLowFragmentationHeap();
34 30
35 // Enables 'terminate on heap corruption' flag. Helps protect against heap 31 // Enables 'terminate on heap corruption' flag. Helps protect against heap
36 // overflow. Has no effect if the OS doesn't provide the necessary facility. 32 // overflow. Has no effect if the OS doesn't provide the necessary facility.
37 BASE_EXPORT void EnableTerminationOnHeapCorruption(); 33 BASE_EXPORT void EnableTerminationOnHeapCorruption();
38 34
39 // Turns on process termination if memory runs out. 35 // Turns on process termination if memory runs out.
40 BASE_EXPORT void EnableTerminationOnOutOfMemory(); 36 BASE_EXPORT void EnableTerminationOnOutOfMemory();
41 37
42 // Terminates process. Should be called only for out of memory errors. 38 // Terminates process. Should be called only for out of memory errors.
43 // Crash reporting classifies such crashes as OOM. 39 // Crash reporting classifies such crashes as OOM.
44 BASE_EXPORT void TerminateBecauseOutOfMemory(size_t size); 40 BASE_EXPORT void TerminateBecauseOutOfMemory(size_t size);
45 41
46 #if defined(OS_WIN)
47 // Returns the module handle to which an address belongs. The reference count
48 // of the module is not incremented.
49 BASE_EXPORT HMODULE GetModuleFromAddress(void* address);
50 #endif
51
52 #if defined(OS_LINUX) || defined(OS_ANDROID) 42 #if defined(OS_LINUX) || defined(OS_ANDROID)
53 BASE_EXPORT extern size_t g_oom_size; 43 BASE_EXPORT extern size_t g_oom_size;
54 44
55 // The maximum allowed value for the OOM score. 45 // The maximum allowed value for the OOM score.
56 const int kMaxOomScore = 1000; 46 const int kMaxOomScore = 1000;
57 47
58 // This adjusts /proc/<pid>/oom_score_adj so the Linux OOM killer will 48 // This adjusts /proc/<pid>/oom_score_adj so the Linux OOM killer will
59 // prefer to kill certain process types over others. The range for the 49 // prefer to kill certain process types over others. The range for the
60 // adjustment is [-1000, 1000], with [0, 1000] being user accessible. 50 // adjustment is [-1000, 1000], with [0, 1000] being user accessible.
61 // If the Linux system doesn't support the newer oom_score_adj range 51 // If the Linux system doesn't support the newer oom_score_adj range
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77 // set to NULL, otherwise it holds the memory address. 67 // set to NULL, otherwise it holds the memory address.
78 BASE_EXPORT WARN_UNUSED_RESULT bool UncheckedMalloc(size_t size, 68 BASE_EXPORT WARN_UNUSED_RESULT bool UncheckedMalloc(size_t size,
79 void** result); 69 void** result);
80 BASE_EXPORT WARN_UNUSED_RESULT bool UncheckedCalloc(size_t num_items, 70 BASE_EXPORT WARN_UNUSED_RESULT bool UncheckedCalloc(size_t num_items,
81 size_t size, 71 size_t size,
82 void** result); 72 void** result);
83 73
84 } // namespace base 74 } // namespace base
85 75
86 #endif // BASE_PROCESS_MEMORY_H_ 76 #endif // BASE_PROCESS_MEMORY_H_
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