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* Changed BOOST_RE_THREADS to BOOST_HAS_THREADS,

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* Updated allocator code to use SGI node based allocator when available.


[SVN r11829]
This commit is contained in:
John Maddock
2001-11-30 11:58:04 +00:00
parent 71790af7f6
commit 528fb22617
1 changed files with 40 additions and 0 deletions
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40
include/boost/detail/allocator.hpp
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@ -22,6 +22,22 @@ using ::size_t;
}
#endif
// see if we have SGI alloc class:
#if defined(BOOST_NO_STD_ALLOCATOR) && (defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION) || defined(__GLIBCPP__) || defined(__STL_CONFIG_H))
# define BOOST_HAVE_SGI_ALLOCATOR
# include <memory>
# if defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)
namespace boost{ namespace detail{
typedef std::__sgi_alloc alloc_type;
}}
# else
namespace boost{ namespace detail{
typedef std::alloc alloc_type;
}}
# endif
#endif
namespace boost{ namespace detail{
template <class T>
@ -99,16 +115,28 @@ public:
pointer allocate(size_type n, const void* = 0)
{
#ifdef BOOST_HAVE_SGI_ALLOCATOR
return n != 0 ?
reinterpret_cast<pointer>(alloc_type::allocate(n * sizeof(value_type)))
: 0;
#else
return n != 0 ?
reinterpret_cast<pointer>(::operator new(n * sizeof(value_type)))
: 0;
#endif
}
void deallocate(pointer p, size_type n)
{
#ifdef BOOST_HAVE_SGI_ALLOCATOR
assert( (p == 0) == (n == 0) );
if (p != 0)
alloc_type::deallocate((void*)p, n);
#else
assert( (p == 0) == (n == 0) );
if (p != 0)
::operator delete((void*)p);
#endif
}
size_type max_size() const
@ -158,16 +186,28 @@ public:
pointer allocate(size_type n, const void* = 0)
{
#ifdef BOOST_HAVE_SGI_ALLOCATOR
return n != 0 ?
reinterpret_cast<pointer>(alloc_type::allocate(n))
: 0;
#else
return n != 0 ?
reinterpret_cast<pointer>(::operator new(n))
: 0;
#endif
}
void deallocate(pointer p, size_type n)
{
#ifdef BOOST_HAVE_SGI_ALLOCATOR
assert( (p == 0) == (n == 0) );
if (p != 0)
alloc_type::deallocate((void*)p, n);
#else
assert( (p == 0) == (n == 0) );
if (p != 0)
::operator delete((void*)p);
#endif
}
};