/usr/include/diagnostics/malloc_allocator.hpp is in libdiagnostics-dev 0.3.3-11build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 | /*
* Diagnostics - a unified framework for code annotation, logging,
* program monitoring, and unit-testing.
*
* Copyright (C) 2009 Christian Schallhart <christian@schallhart.net>,
* Michael Tautschnig <tautschnig@forsyte.de>
* 2008 model.in.tum.de group, FORSYTE group
* 2006-2007 model.in.tum.de group
* 2002-2005 Christian Schallhart
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef DIAGNOSTICS__EXTENSIONS__MEMORY__MALLOC_ALLOCATOR__INCLUDE_GUARD
#define DIAGNOSTICS__EXTENSIONS__MEMORY__MALLOC_ALLOCATOR__INCLUDE_GUARD
#include <diagnostics/extensions/memory/namespace.hpp>
// malloc/free
#include <cstdlib>
// ::std::allocator
#include <memory>
// ::std::numeric_limits
#include <limits>
DIAGNOSTICS_NAMESPACE_BEGIN;
MEMORY_NAMESAPCE_BEGIN;
INTERNAL_NAMESPACE_BEGIN;
/**
* @class Malloc_Allocator
*
* @brief It is a straight forward STL allocator which uses internally
* malloc/free for its memory management. We use this allocator to be
* independent from new/delete allocations -- and more importantly: we
* must be independent of STL internal pooling and mutexing.
*
* As an example of the problems, that could occur:
*
* @arg STL container locks the global memory pool.
* @arg STL container requires memory beyond the available pool size
* @arg .. pool calls new
* @arg .. .. Allocation_Database_Implementation has to register the allocation
* @arg .. .. .. its underlying STL container have to allocate memory
* @arg .. .. .. .. attempts to _lock_ the global memory pool (DEADLOCK)
*
* Thus we use this alloctor for internal containers.
*
* @nosubgrouping
*/
template<typename T>
class Malloc_Allocator
{
public:
typedef T value_type;
typedef value_type* pointer;
typedef const value_type* const_pointer;
typedef value_type& reference;
typedef const value_type& const_reference;
typedef ::std::size_t size_type;
typedef ::std::ptrdiff_t difference_type;
private:
typedef typename ::std::allocator<void>::const_pointer const_void_pointer;
public :
template<typename U>
struct rebind { typedef Malloc_Allocator<U> other;};
public :
inline Malloc_Allocator() {}
inline ~Malloc_Allocator() {}
inline Malloc_Allocator(Malloc_Allocator const&) {}
template<typename U>
inline Malloc_Allocator(Malloc_Allocator<U> const&) {}
inline pointer address(reference r) { return &r; }
inline const_pointer address(const_reference r) { return &r; }
inline pointer allocate(size_type cnt, const_void_pointer = 0)
{
return reinterpret_cast<pointer>(::std::malloc(cnt * sizeof (T)));
}
inline void deallocate(pointer p, size_type)
{
::std::free(p);
}
inline size_type max_size() const
{
return ::std::numeric_limits<size_type>::max() / sizeof(T);
}
inline void construct(pointer p, const T& t) { new(p) T(t); }
inline void destroy(pointer p) { p->~T(); }
inline bool operator==(Malloc_Allocator const&) { return true; }
inline bool operator!=(Malloc_Allocator const& a) { return !operator==(a); }
};
INTERNAL_NAMESPACE_END;
MEMORY_NAMESAPCE_END;
DIAGNOSTICS_NAMESPACE_END;
#endif
// vim:ts=4:sw=4
|