The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/core/SkRefDict.cpp
gfx/skia/trunk/src/core/SkRefDict.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:ead4ce47a5e4 |
|---|---|
| 1 | |
| 2 /* | |
| 3 * Copyright 2011 Google Inc. | |
| 4 * | |
| 5 * Use of this source code is governed by a BSD-style license that can be | |
| 6 * found in the LICENSE file. | |
| 7 */ | |
| 8 | |
| 9 | |
| 10 #include "SkRefDict.h" | |
| 11 #include "SkString.h" | |
| 12 | |
| 13 struct SkRefDict::Impl { | |
| 14 Impl* fNext; | |
| 15 SkString fName; | |
| 16 SkRefCnt* fData; | |
| 17 }; | |
| 18 | |
| 19 SkRefDict::SkRefDict() : fImpl(NULL) {} | |
| 20 | |
| 21 SkRefDict::~SkRefDict() { | |
| 22 this->removeAll(); | |
| 23 } | |
| 24 | |
| 25 SkRefCnt* SkRefDict::find(const char name[]) const { | |
| 26 if (NULL == name) { | |
| 27 return NULL; | |
| 28 } | |
| 29 | |
| 30 Impl* rec = fImpl; | |
| 31 while (rec) { | |
| 32 if (rec->fName.equals(name)) { | |
| 33 return rec->fData; | |
| 34 } | |
| 35 rec = rec->fNext; | |
| 36 } | |
| 37 return NULL; | |
| 38 } | |
| 39 | |
| 40 void SkRefDict::set(const char name[], SkRefCnt* data) { | |
| 41 if (NULL == name) { | |
| 42 return; | |
| 43 } | |
| 44 | |
| 45 Impl* rec = fImpl; | |
| 46 Impl* prev = NULL; | |
| 47 while (rec) { | |
| 48 if (rec->fName.equals(name)) { | |
| 49 if (data) { | |
| 50 // replace | |
| 51 data->ref(); | |
| 52 rec->fData->unref(); | |
| 53 rec->fData = data; | |
| 54 } else { | |
| 55 // remove | |
| 56 rec->fData->unref(); | |
| 57 if (prev) { | |
| 58 prev->fNext = rec->fNext; | |
| 59 } else { | |
| 60 fImpl = rec->fNext; | |
| 61 } | |
| 62 delete rec; | |
| 63 } | |
| 64 return; | |
| 65 } | |
| 66 prev = rec; | |
| 67 rec = rec->fNext; | |
| 68 } | |
| 69 | |
| 70 // if get here, name was not found, so add it | |
| 71 data->ref(); | |
| 72 rec = new Impl; | |
| 73 rec->fName.set(name); | |
| 74 rec->fData = data; | |
| 75 // prepend to the head of our list | |
| 76 rec->fNext = fImpl; | |
| 77 fImpl = rec; | |
| 78 } | |
| 79 | |
| 80 void SkRefDict::removeAll() { | |
| 81 Impl* rec = fImpl; | |
| 82 while (rec) { | |
| 83 Impl* next = rec->fNext; | |
| 84 rec->fData->unref(); | |
| 85 delete rec; | |
| 86 rec = next; | |
| 87 } | |
| 88 fImpl = NULL; | |
| 89 } |
