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Side by Side Diff: third_party/tcmalloc/chromium/src/page_heap_allocator.h

Issue 7050034: Merge google-perftools r109 (the current contents of third_party/tcmalloc/vendor) (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: '' Created 9 years, 6 months ago
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1 // Copyright (c) 2008, Google Inc. 1 // Copyright (c) 2008, Google Inc.
2 // All rights reserved. 2 // All rights reserved.
3 // 3 //
4 // Redistribution and use in source and binary forms, with or without 4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are 5 // modification, are permitted provided that the following conditions are
6 // met: 6 // met:
7 // 7 //
8 // * Redistributions of source code must retain the above copyright 8 // * Redistributions of source code must retain the above copyright
9 // notice, this list of conditions and the following disclaimer. 9 // notice, this list of conditions and the following disclaimer.
10 // * Redistributions in binary form must reproduce the above 10 // * Redistributions in binary form must reproduce the above
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26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 29
30 // --- 30 // ---
31 // Author: Sanjay Ghemawat <opensource@google.com> 31 // Author: Sanjay Ghemawat <opensource@google.com>
32 32
33 #ifndef TCMALLOC_PAGE_HEAP_ALLOCATOR_H_ 33 #ifndef TCMALLOC_PAGE_HEAP_ALLOCATOR_H_
34 #define TCMALLOC_PAGE_HEAP_ALLOCATOR_H_ 34 #define TCMALLOC_PAGE_HEAP_ALLOCATOR_H_
35 35
36 #include <stddef.h> // for NULL, size_t
37
38 #include "common.h" // for MetaDataAlloc
39 #include "internal_logging.h" // for ASSERT, CRASH
40
36 namespace tcmalloc { 41 namespace tcmalloc {
37 42
38 // Simple allocator for objects of a specified type. External locking 43 // Simple allocator for objects of a specified type. External locking
39 // is required before accessing one of these objects. 44 // is required before accessing one of these objects.
40 template <class T> 45 template <class T>
41 class PageHeapAllocator { 46 class PageHeapAllocator {
42 public: 47 public:
43 // We use an explicit Init function because these variables are statically 48 // We use an explicit Init function because these variables are statically
44 // allocated and their constructors might not have run by the time some 49 // allocated and their constructors might not have run by the time some
45 // other static variable tries to allocate memory. 50 // other static variable tries to allocate memory.
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98 // Free list of already carved objects 103 // Free list of already carved objects
99 void* free_list_; 104 void* free_list_;
100 105
101 // Number of allocated but unfreed objects 106 // Number of allocated but unfreed objects
102 int inuse_; 107 int inuse_;
103 }; 108 };
104 109
105 } // namespace tcmalloc 110 } // namespace tcmalloc
106 111
107 #endif // TCMALLOC_PAGE_HEAP_ALLOCATOR_H_ 112 #endif // TCMALLOC_PAGE_HEAP_ALLOCATOR_H_
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