The Tor Browser: toolkit/crashreporter/google-breakpad/src/common/scoped

toolkit/crashreporter/google-breakpad/src/common/scoped_ptr.h@129ffea94266 (annotated)

toolkit/crashreporter/google-breakpad/src/common/scoped_ptr.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.

 //  (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
 //  Copyright (c) 2001, 2002 Peter Dimov
 //
 //  Permission to copy, use, modify, sell and distribute this software
 //  is granted provided this copyright notice appears in all copies.
 //  This software is provided "as is" without express or implied
 //  warranty, and with no claim as to its suitability for any purpose.
 //
 //  See http://www.boost.org/libs/smart_ptr/scoped_ptr.htm for documentation.
 //
 //  scoped_ptr mimics a built-in pointer except that it guarantees deletion
 //  of the object pointed to, either on destruction of the scoped_ptr or via
 //  an explicit reset(). scoped_ptr is a simple solution for simple needs;
 //  use shared_ptr or std::auto_ptr if your needs are more complex.
 //  *** NOTE ***
 //  If your scoped_ptr is a class member of class FOO pointing to a
 //  forward declared type BAR (as shown below), then you MUST use a non-inlined
 //  version of the destructor.  The destructor of a scoped_ptr (called from
 //  FOO's destructor) must have a complete definition of BAR in order to
 //  destroy it.  Example:
 //
 //  -- foo.h --
 //  class BAR;
 //
 //  class FOO {
 //   public:
 //    FOO();
 //    ~FOO();  // Required for sources that instantiate class FOO to compile!
 //
 //   private:
 //    scoped_ptr<BAR> bar_;
 //  };
 //
 //  -- foo.cc --
 //  #include "foo.h"
 //  FOO::~FOO() {} // Empty, but must be non-inlined to FOO's class definition.
 //  scoped_ptr_malloc added by Google
 //  When one of these goes out of scope, instead of doing a delete or
 //  delete[], it calls free().  scoped_ptr_malloc<char> is likely to see
 //  much more use than any other specializations.
 //  release() added by Google
 //  Use this to conditionally transfer ownership of a heap-allocated object
 //  to the caller, usually on method success.
 #ifndef COMMON_SCOPED_PTR_H_
 #define COMMON_SCOPED_PTR_H_
 #include <cstddef>            // for std::ptrdiff_t
 #include <assert.h>           // for assert
 #include <stdlib.h>           // for free() decl
 namespace google_breakpad {
 template <typename T>
 class scoped_ptr {
  private:
   T* ptr;
   scoped_ptr(scoped_ptr const &);
   scoped_ptr & operator=(scoped_ptr const &);
  public:
   typedef T element_type;
   explicit scoped_ptr(T* p = 0): ptr(p) {}
   ~scoped_ptr() {
     typedef char type_must_be_complete[sizeof(T)];
     delete ptr;
   }
   void reset(T* p = 0) {
     typedef char type_must_be_complete[sizeof(T)];
     if (ptr != p) {
       delete ptr;
       ptr = p;
     }
   }
   T& operator*() const {
     assert(ptr != 0);
     return *ptr;
   }
   T* operator->() const  {
     assert(ptr != 0);
     return ptr;
   }
   bool operator==(T* p) const {
     return ptr == p;
   }
   bool operator!=(T* p) const {
     return ptr != p;
   }
   T* get() const  {
     return ptr;
   }
   void swap(scoped_ptr & b) {
     T* tmp = b.ptr;
     b.ptr = ptr;
     ptr = tmp;
   }
   T* release() {
     T* tmp = ptr;
     ptr = 0;
     return tmp;
   }
  private:
   // no reason to use these: each scoped_ptr should have its own object
   template <typename U> bool operator==(scoped_ptr<U> const& p) const;
   template <typename U> bool operator!=(scoped_ptr<U> const& p) const;
 };
 template<typename T> inline
 void swap(scoped_ptr<T>& a, scoped_ptr<T>& b) {
   a.swap(b);
 }
 template<typename T> inline
 bool operator==(T* p, const scoped_ptr<T>& b) {
   return p == b.get();
 }
 template<typename T> inline
 bool operator!=(T* p, const scoped_ptr<T>& b) {
   return p != b.get();
 }
 //  scoped_array extends scoped_ptr to arrays. Deletion of the array pointed to
 //  is guaranteed, either on destruction of the scoped_array or via an explicit
 //  reset(). Use shared_array or std::vector if your needs are more complex.
 template<typename T>
 class scoped_array {
  private:
   T* ptr;
   scoped_array(scoped_array const &);
   scoped_array & operator=(scoped_array const &);
  public:
   typedef T element_type;
   explicit scoped_array(T* p = 0) : ptr(p) {}
   ~scoped_array() {
     typedef char type_must_be_complete[sizeof(T)];
     delete[] ptr;
   }
   void reset(T* p = 0) {
     typedef char type_must_be_complete[sizeof(T)];
     if (ptr != p) {
       delete [] ptr;
       ptr = p;
     }
   }
   T& operator[](std::ptrdiff_t i) const {
     assert(ptr != 0);
     assert(i >= 0);
     return ptr[i];
   }
   bool operator==(T* p) const {
     return ptr == p;
   }
   bool operator!=(T* p) const {
     return ptr != p;
   }
   T* get() const {
     return ptr;
   }
   void swap(scoped_array & b) {
     T* tmp = b.ptr;
     b.ptr = ptr;
     ptr = tmp;
   }
   T* release() {
     T* tmp = ptr;
     ptr = 0;
     return tmp;
   }
  private:
   // no reason to use these: each scoped_array should have its own object
   template <typename U> bool operator==(scoped_array<U> const& p) const;
   template <typename U> bool operator!=(scoped_array<U> const& p) const;
 };
 template<class T> inline
 void swap(scoped_array<T>& a, scoped_array<T>& b) {
   a.swap(b);
 }
 template<typename T> inline
 bool operator==(T* p, const scoped_array<T>& b) {
   return p == b.get();
 }
 template<typename T> inline
 bool operator!=(T* p, const scoped_array<T>& b) {
   return p != b.get();
 }
 // This class wraps the c library function free() in a class that can be
 // passed as a template argument to scoped_ptr_malloc below.
 class ScopedPtrMallocFree {
  public:
   inline void operator()(void* x) const {
     free(x);
   }
 };
 // scoped_ptr_malloc<> is similar to scoped_ptr<>, but it accepts a
 // second template argument, the functor used to free the object.
 template<typename T, typename FreeProc = ScopedPtrMallocFree>
 class scoped_ptr_malloc {
  private:
   T* ptr;
   scoped_ptr_malloc(scoped_ptr_malloc const &);
   scoped_ptr_malloc & operator=(scoped_ptr_malloc const &);
  public:
   typedef T element_type;
   explicit scoped_ptr_malloc(T* p = 0): ptr(p) {}
   ~scoped_ptr_malloc() {
     typedef char type_must_be_complete[sizeof(T)];
     free_((void*) ptr);
   }
   void reset(T* p = 0) {
     typedef char type_must_be_complete[sizeof(T)];
     if (ptr != p) {
       free_((void*) ptr);
       ptr = p;
     }
   }
   T& operator*() const {
     assert(ptr != 0);
     return *ptr;
   }
   T* operator->() const {
     assert(ptr != 0);
     return ptr;
   }
   bool operator==(T* p) const {
     return ptr == p;
   }
   bool operator!=(T* p) const {
     return ptr != p;
   }
   T* get() const {
     return ptr;
   }
   void swap(scoped_ptr_malloc & b) {
     T* tmp = b.ptr;
     b.ptr = ptr;
     ptr = tmp;
   }
   T* release() {
     T* tmp = ptr;
     ptr = 0;
     return tmp;
   }
  private:
   // no reason to use these: each scoped_ptr_malloc should have its own object
   template <typename U, typename GP>
   bool operator==(scoped_ptr_malloc<U, GP> const& p) const;
   template <typename U, typename GP>
   bool operator!=(scoped_ptr_malloc<U, GP> const& p) const;
   static FreeProc const free_;
 };
 template<typename T, typename FP>
 FP const scoped_ptr_malloc<T,FP>::free_ = FP();
 template<typename T, typename FP> inline
 void swap(scoped_ptr_malloc<T,FP>& a, scoped_ptr_malloc<T,FP>& b) {
   a.swap(b);
 }
 template<typename T, typename FP> inline
 bool operator==(T* p, const scoped_ptr_malloc<T,FP>& b) {
   return p == b.get();
 }
 template<typename T, typename FP> inline
 bool operator!=(T* p, const scoped_ptr_malloc<T,FP>& b) {
   return p != b.get();
 }
 }  // namespace google_breakpad
 #endif  // COMMON_SCOPED_PTR_H_

The Tor Browser / annotate

toolkit/crashreporter/google-breakpad/src/common/scoped_ptr.h@129ffea94266 (annotated)

toolkit/crashreporter/google-breakpad/src/common/scoped_ptr.h