The Tor Browser: gfx/skia/trunk/src/core/SkPtrRecorder.h@129ffea94266 (annotated)

gfx/skia/trunk/src/core/SkPtrRecorder.h@129ffea94266 (annotated)

gfx/skia/trunk/src/core/SkPtrRecorder.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.

 /*
  * Copyright 2008 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkPtrSet_DEFINED
 #define SkPtrSet_DEFINED
 #include "SkRefCnt.h"
 #include "SkFlattenable.h"
 #include "SkTDArray.h"
 /**
  *  Maintains a set of ptrs, assigning each a unique ID [1...N]. Duplicate ptrs
  *  return the same ID (since its a set). Subclasses can override inPtr()
  *  and decPtr(). incPtr() is called each time a unique ptr is added ot the
  *  set. decPtr() is called on each ptr when the set is destroyed or reset.
  */
 class SkPtrSet : public SkRefCnt {
 public:
     SK_DECLARE_INST_COUNT(SkPtrSet)
     /**
      *  Search for the specified ptr in the set. If it is found, return its
      *  32bit ID [1..N], or if not found, return 0. Always returns 0 for NULL.
      */
     uint32_t find(void*) const;
     /**
      *  Add the specified ptr to the set, returning a unique 32bit ID for it
      *  [1...N]. Duplicate ptrs will return the same ID.
      *
      *  If the ptr is NULL, it is not added, and 0 is returned.
      */
     uint32_t add(void*);
     /**
      *  Return the number of (non-null) ptrs in the set.
      */
     int count() const { return fList.count(); }
     /**
      *  Copy the ptrs in the set into the specified array (allocated by the
      *  caller). The ptrs are assgined to the array based on their corresponding
      *  ID. e.g. array[ptr.ID - 1] = ptr.
      *
      *  incPtr() and decPtr() are not called during this operation.
      */
     void copyToArray(void* array[]) const;
     /**
      *  Call decPtr() on each ptr in the set, and the reset the size of the set
      *  to 0.
      */
     void reset();
 protected:
     virtual void incPtr(void*) {}
     virtual void decPtr(void*) {}
 private:
     struct Pair {
         void*       fPtr;   // never NULL
         uint32_t    fIndex; // 1...N
     };
     // we store the ptrs in sorted-order (using Cmp) so that we can efficiently
     // detect duplicates when add() is called. Hence we need to store the
     // ptr and its ID/fIndex explicitly, since the ptr's position in the array
     // is not related to its "index".
     SkTDArray<Pair>  fList;
     static bool Less(const Pair& a, const Pair& b);
     typedef SkRefCnt INHERITED;
 };
 /**
  *  Templated wrapper for SkPtrSet, just meant to automate typecasting
  *  parameters to and from void* (which the base class expects).
  */
 template <typename T> class SkTPtrSet : public SkPtrSet {
 public:
     uint32_t find(T ptr) {
         return this->INHERITED::find((void*)ptr);
     }
     uint32_t add(T ptr) {
         return this->INHERITED::add((void*)ptr);
     }
     void copyToArray(T* array) const {
         this->INHERITED::copyToArray((void**)array);
     }
 private:
     typedef SkPtrSet INHERITED;
 };
 /**
  *  Subclass of SkTPtrSet specialed to call ref() and unref() when the
  *  base class's incPtr() and decPtr() are called. This makes it a valid owner
  *  of each ptr, which is released when the set is reset or destroyed.
  */
 class SkRefCntSet : public SkTPtrSet<SkRefCnt*> {
 public:
     virtual ~SkRefCntSet();
 protected:
     // overrides
     virtual void incPtr(void*);
     virtual void decPtr(void*);
 };
 class SkFactorySet : public SkTPtrSet<SkFlattenable::Factory> {};
 /**
  * Similar to SkFactorySet, but only allows Factorys that have registered names.
  * Also has a function to return the next added Factory's name.
  */
 class SkNamedFactorySet : public SkRefCnt {
 public:
     SK_DECLARE_INST_COUNT(SkNamedFactorySet)
     SkNamedFactorySet();
     /**
      * Find the specified Factory in the set. If it is not already in the set,
      * and has registered its name, add it to the set, and return its index.
      * If the Factory has no registered name, return 0.
      */
     uint32_t find(SkFlattenable::Factory);
     /**
      * If new Factorys have been added to the set, return the name of the first
      * Factory added after the Factory name returned by the last call to this
      * function.
      */
     const char* getNextAddedFactoryName();
 private:
     int                    fNextAddedFactory;
     SkFactorySet           fFactorySet;
     SkTDArray<const char*> fNames;
     typedef SkRefCnt INHERITED;
 };
 #endif

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gfx/skia/trunk/src/core/SkPtrRecorder.h@129ffea94266 (annotated)

gfx/skia/trunk/src/core/SkPtrRecorder.h