gfx/skia/trunk/include/core/SkChunkAlloc.h@129ffea94266 (annotated)
gfx/skia/trunk/include/core/SkChunkAlloc.h
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
| michael@0 | 1 | |
| michael@0 | 2 | /* |
| michael@0 | 3 | * Copyright 2006 The Android Open Source Project |
| michael@0 | 4 | * |
| michael@0 | 5 | * Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 6 | * found in the LICENSE file. |
| michael@0 | 7 | */ |
| michael@0 | 8 | |
| michael@0 | 9 | |
| michael@0 | 10 | #ifndef SkChunkAlloc_DEFINED |
| michael@0 | 11 | #define SkChunkAlloc_DEFINED |
| michael@0 | 12 | |
| michael@0 | 13 | #include "SkTypes.h" |
| michael@0 | 14 | |
| michael@0 | 15 | class SkChunkAlloc : SkNoncopyable { |
| michael@0 | 16 | public: |
| michael@0 | 17 | SkChunkAlloc(size_t minSize); |
| michael@0 | 18 | ~SkChunkAlloc(); |
| michael@0 | 19 | |
| michael@0 | 20 | /** |
| michael@0 | 21 | * Free up all allocated blocks. This invalidates all returned |
| michael@0 | 22 | * pointers. |
| michael@0 | 23 | */ |
| michael@0 | 24 | void reset(); |
| michael@0 | 25 | |
| michael@0 | 26 | enum AllocFailType { |
| michael@0 | 27 | kReturnNil_AllocFailType, |
| michael@0 | 28 | kThrow_AllocFailType |
| michael@0 | 29 | }; |
| michael@0 | 30 | |
| michael@0 | 31 | void* alloc(size_t bytes, AllocFailType); |
| michael@0 | 32 | void* allocThrow(size_t bytes) { |
| michael@0 | 33 | return this->alloc(bytes, kThrow_AllocFailType); |
| michael@0 | 34 | } |
| michael@0 | 35 | |
| michael@0 | 36 | /** Call this to unalloc the most-recently allocated ptr by alloc(). On |
| michael@0 | 37 | success, the number of bytes freed is returned, or 0 if the block could |
| michael@0 | 38 | not be unallocated. This is a hint to the underlying allocator that |
| michael@0 | 39 | the previous allocation may be reused, but the implementation is free |
| michael@0 | 40 | to ignore this call (and return 0). |
| michael@0 | 41 | */ |
| michael@0 | 42 | size_t unalloc(void* ptr); |
| michael@0 | 43 | |
| michael@0 | 44 | size_t totalCapacity() const { return fTotalCapacity; } |
| michael@0 | 45 | size_t totalUsed() const { return fTotalUsed; } |
| michael@0 | 46 | int blockCount() const { return fBlockCount; } |
| michael@0 | 47 | |
| michael@0 | 48 | /** |
| michael@0 | 49 | * Returns true if the specified address is within one of the chunks, and |
| michael@0 | 50 | * has at least 1-byte following the address (i.e. if addr points to the |
| michael@0 | 51 | * end of a chunk, then contains() will return false). |
| michael@0 | 52 | */ |
| michael@0 | 53 | bool contains(const void* addr) const; |
| michael@0 | 54 | |
| michael@0 | 55 | private: |
| michael@0 | 56 | struct Block; |
| michael@0 | 57 | |
| michael@0 | 58 | Block* fBlock; |
| michael@0 | 59 | size_t fMinSize; |
| michael@0 | 60 | size_t fChunkSize; |
| michael@0 | 61 | size_t fTotalCapacity; |
| michael@0 | 62 | size_t fTotalUsed; // will be <= fTotalCapacity |
| michael@0 | 63 | int fBlockCount; |
| michael@0 | 64 | |
| michael@0 | 65 | Block* newBlock(size_t bytes, AllocFailType ftype); |
| michael@0 | 66 | }; |
| michael@0 | 67 | |
| michael@0 | 68 | #endif |
