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

gfx/skia/trunk/include/core/SkMetaData.h@129ffea94266 (annotated)

gfx/skia/trunk/include/core/SkMetaData.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 2006 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 SkMetaData_DEFINED
 #define SkMetaData_DEFINED
 #include "SkScalar.h"
 class SkRefCnt;
 class SK_API SkMetaData {
 public:
     /**
      *  Used to manage the life-cycle of a ptr in the metadata. This is option
      *  in setPtr, and is only invoked when either copying one metadata to
      *  another, or when the metadata is destroyed.
      *
      *  setPtr(name, ptr, proc) {
      *      fPtr = proc(ptr, true);
      *  }
      *
      *  copy: A = B {
      *      A.fPtr = B.fProc(B.fPtr, true);
      *  }
      *
      *  ~SkMetaData {
      *      fProc(fPtr, false);
      *  }
      */
     typedef void* (*PtrProc)(void* ptr, bool doRef);
     /**
      *  Implements PtrProc for SkRefCnt pointers
      */
     static void* RefCntProc(void* ptr, bool doRef);
     SkMetaData();
     SkMetaData(const SkMetaData& src);
     ~SkMetaData();
     SkMetaData& operator=(const SkMetaData& src);
     void reset();
     bool findS32(const char name[], int32_t* value = NULL) const;
     bool findScalar(const char name[], SkScalar* value = NULL) const;
     const SkScalar* findScalars(const char name[], int* count,
                                 SkScalar values[] = NULL) const;
     const char* findString(const char name[]) const;
     bool findPtr(const char name[], void** value = NULL, PtrProc* = NULL) const;
     bool findBool(const char name[], bool* value = NULL) const;
     const void* findData(const char name[], size_t* byteCount = NULL) const;
     bool hasS32(const char name[], int32_t value) const {
         int32_t v;
         return this->findS32(name, &v) && v == value;
     }
     bool hasScalar(const char name[], SkScalar value) const {
         SkScalar v;
         return this->findScalar(name, &v) && v == value;
     }
     bool hasString(const char name[], const char value[]) const {
         const char* v = this->findString(name);
         return  (v == NULL && value == NULL) ||
                 (v != NULL && value != NULL && !strcmp(v, value));
     }
     bool hasPtr(const char name[], void* value) const {
         void* v;
         return this->findPtr(name, &v) && v == value;
     }
     bool hasBool(const char name[], bool value) const {
         bool    v;
         return this->findBool(name, &v) && v == value;
     }
     bool hasData(const char name[], const void* data, size_t byteCount) const {
         size_t len;
         const void* ptr = this->findData(name, &len);
         return NULL != ptr && len == byteCount && !memcmp(ptr, data, len);
     }
     void setS32(const char name[], int32_t value);
     void setScalar(const char name[], SkScalar value);
     SkScalar* setScalars(const char name[], int count, const SkScalar values[] = NULL);
     void setString(const char name[], const char value[]);
     void setPtr(const char name[], void* value, PtrProc proc = NULL);
     void setBool(const char name[], bool value);
     // the data is copied from the input pointer.
     void setData(const char name[], const void* data, size_t byteCount);
     bool removeS32(const char name[]);
     bool removeScalar(const char name[]);
     bool removeString(const char name[]);
     bool removePtr(const char name[]);
     bool removeBool(const char name[]);
     bool removeData(const char name[]);
     // helpers for SkRefCnt
     bool findRefCnt(const char name[], SkRefCnt** ptr = NULL) {
         return this->findPtr(name, reinterpret_cast<void**>(ptr));
     }
     bool hasRefCnt(const char name[], SkRefCnt* ptr) {
         return this->hasPtr(name, ptr);
     }
     void setRefCnt(const char name[], SkRefCnt* ptr) {
         this->setPtr(name, ptr, RefCntProc);
     }
     bool removeRefCnt(const char name[]) {
         return this->removePtr(name);
     }
     enum Type {
         kS32_Type,
         kScalar_Type,
         kString_Type,
         kPtr_Type,
         kBool_Type,
         kData_Type,
         kTypeCount
     };
     struct Rec;
     class Iter;
     friend class Iter;
     class Iter {
     public:
         Iter() : fRec(NULL) {}
         Iter(const SkMetaData&);
         /** Reset the iterator, so that calling next() will return the first
             data element. This is done implicitly in the constructor.
         */
         void reset(const SkMetaData&);
         /** Each time next is called, it returns the name of the next data element,
             or null when there are no more elements. If non-null is returned, then the
             element's type is returned (if not null), and the number of data values
             is returned in count (if not null).
         */
         const char* next(Type*, int* count);
     private:
         Rec* fRec;
     };
 public:
     struct Rec {
         Rec*        fNext;
         uint16_t    fDataCount; // number of elements
         uint8_t     fDataLen;   // sizeof a single element
         uint8_t     fType;
         const void* data() const { return (this + 1); }
         void*       data() { return (this + 1); }
         const char* name() const { return (const char*)this->data() + fDataLen * fDataCount; }
         char*       name() { return (char*)this->data() + fDataLen * fDataCount; }
         static Rec* Alloc(size_t);
         static void Free(Rec*);
     };
     Rec*    fRec;
     const Rec* find(const char name[], Type) const;
     void* set(const char name[], const void* data, size_t len, Type, int count);
     bool remove(const char name[], Type);
 };
 #endif

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gfx/skia/trunk/include/core/SkMetaData.h@129ffea94266 (annotated)

gfx/skia/trunk/include/core/SkMetaData.h