70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
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/*
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* stlslab.h
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*
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* Created on: Nov 12, 2010
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* Author: sears
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*/
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#ifndef STLSLAB_H_
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#define STLSLAB_H_
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#include <algorithm>
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#include <stdio.h>
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#include <stasis/util/slab.h>
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#include <assert.h>
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template <class T>
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class stlslab {
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public:
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typedef T value_type;
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typedef T* pointer;
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typedef T& reference;
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typedef const T* const_pointer;
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typedef const T& const_reference;
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typedef std::size_t size_type;
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typedef std::ptrdiff_t difference_type;
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stlslab ( ) throw() {
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alloc = stasis_util_slab_create(sizeof(T), 65536);
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}
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stlslab ( const stlslab& s) throw() {
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printf("Expensive!!\n");
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alloc = stasis_util_slab_create(sizeof(T), /*sizeof(U),*/ 65536);
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// alloc = s.alloc;
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// assert(alloc);
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stasis_util_slab_ref(alloc);
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}
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template <class U>
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stlslab( const stlslab<U>& s) throw() {
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// printf("sizeof U %lld\n", (long long)sizeof(U));
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alloc = s.alloc;
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//assert(alloc);
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stasis_util_slab_ref(alloc);
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}
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~stlslab () {
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stasis_util_slab_destroy(alloc);
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}
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pointer address ( reference x ) const { return &x; }
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const_pointer address ( const_reference x ) const { return &x; }
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template<typename _Tp1>
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struct rebind
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{ typedef stlslab<_Tp1> other; };
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pointer allocate (size_type n, stlslab::const_pointer hint=0) {
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assert(n == 1);
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return (T*) stasis_util_slab_malloc(alloc);
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}
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void deallocate (pointer p, size_type n) {
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assert(n == 1);
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stasis_util_slab_free(alloc, p);
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}
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size_type max_size() const throw() { return 1; }
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void construct ( pointer p, const_reference val ) { new ((void*)p) T (val); }
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void destroy (pointer p) {((T*)p)->~T(); }
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stasis_util_slab_t * alloc;
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};
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#endif /* STLSLAB_H_ */
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