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

gfx/skia/trunk/src/core/SkData.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/core/SkData.cpp

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 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SkData.h"
 #include "SkReadBuffer.h"
 #include "SkWriteBuffer.h"
 #include "SkOSFile.h"
 #include "SkOnce.h"
 SkData::SkData(const void* ptr, size_t size, ReleaseProc proc, void* context) {
     fPtr = ptr;
     fSize = size;
     fReleaseProc = proc;
     fReleaseProcContext = context;
 }
 SkData::~SkData() {
     if (fReleaseProc) {
         fReleaseProc(fPtr, fSize, fReleaseProcContext);
     }
 }
 bool SkData::equals(const SkData* other) const {
     if (NULL == other) {
         return false;
     }
     return fSize == other->fSize && !memcmp(fPtr, other->fPtr, fSize);
 }
 size_t SkData::copyRange(size_t offset, size_t length, void* buffer) const {
     size_t available = fSize;
     if (offset >= available || 0 == length) {
         return 0;
     }
     available -= offset;
     if (length > available) {
         length = available;
     }
     SkASSERT(length > 0);
     memcpy(buffer, this->bytes() + offset, length);
     return length;
 }
 ///////////////////////////////////////////////////////////////////////////////
 static SkData* gEmptyDataRef = NULL;
 static void cleanup_gEmptyDataRef() { gEmptyDataRef->unref(); }
 void SkData::NewEmptyImpl(int) {
     gEmptyDataRef = new SkData(NULL, 0, NULL, NULL);
 }
 SkData* SkData::NewEmpty() {
     SK_DECLARE_STATIC_ONCE(once);
     SkOnce(&once, SkData::NewEmptyImpl, 0, cleanup_gEmptyDataRef);
     gEmptyDataRef->ref();
     return gEmptyDataRef;
 }
 // assumes fPtr was allocated via sk_malloc
 static void sk_free_releaseproc(const void* ptr, size_t, void*) {
     sk_free((void*)ptr);
 }
 SkData* SkData::NewFromMalloc(const void* data, size_t length) {
     return new SkData(data, length, sk_free_releaseproc, NULL);
 }
 SkData* SkData::NewWithCopy(const void* data, size_t length) {
     if (0 == length) {
         return SkData::NewEmpty();
     }
     void* copy = sk_malloc_throw(length); // balanced in sk_free_releaseproc
     memcpy(copy, data, length);
     return new SkData(copy, length, sk_free_releaseproc, NULL);
 }
 SkData* SkData::NewWithProc(const void* data, size_t length,
                             ReleaseProc proc, void* context) {
     return new SkData(data, length, proc, context);
 }
 // assumes fPtr was allocated with sk_fmmap
 static void sk_mmap_releaseproc(const void* addr, size_t length, void*) {
     sk_fmunmap(addr, length);
 }
 SkData* SkData::NewFromFILE(SkFILE* f) {
     size_t size;
     void* addr = sk_fmmap(f, &size);
     if (NULL == addr) {
         return NULL;
     }
     return SkData::NewWithProc(addr, size, sk_mmap_releaseproc, NULL);
 }
 SkData* SkData::NewFromFileName(const char path[]) {
     SkFILE* f = path ? sk_fopen(path, kRead_SkFILE_Flag) : NULL;
     if (NULL == f) {
         return NULL;
     }
     SkData* data = NewFromFILE(f);
     sk_fclose(f);
     return data;
 }
 SkData* SkData::NewFromFD(int fd) {
     size_t size;
     void* addr = sk_fdmmap(fd, &size);
     if (NULL == addr) {
         return NULL;
     }
     return SkData::NewWithProc(addr, size, sk_mmap_releaseproc, NULL);
 }
 // assumes context is a SkData
 static void sk_dataref_releaseproc(const void*, size_t, void* context) {
     SkData* src = reinterpret_cast<SkData*>(context);
     src->unref();
 }
 SkData* SkData::NewSubset(const SkData* src, size_t offset, size_t length) {
     /*
         We could, if we wanted/need to, just make a deep copy of src's data,
         rather than referencing it. This would duplicate the storage (of the
         subset amount) but would possibly allow src to go out of scope sooner.
      */
     size_t available = src->size();
     if (offset >= available || 0 == length) {
         return SkData::NewEmpty();
     }
     available -= offset;
     if (length > available) {
         length = available;
     }
     SkASSERT(length > 0);
     src->ref(); // this will be balanced in sk_dataref_releaseproc
     return new SkData(src->bytes() + offset, length, sk_dataref_releaseproc,
                          const_cast<SkData*>(src));
 }
 SkData* SkData::NewWithCString(const char cstr[]) {
     size_t size;
     if (NULL == cstr) {
         cstr = "";
         size = 1;
     } else {
         size = strlen(cstr) + 1;
     }
     return NewWithCopy(cstr, size);
 }

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gfx/skia/trunk/src/core/SkData.cpp@129ffea94266 (annotated)

gfx/skia/trunk/src/core/SkData.cpp