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87 lines
2.4 KiB
87 lines
2.4 KiB
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#ifndef FC_SOLVE__ALLOC_H
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#define FC_SOLVE__ALLOC_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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struct fcs_compact_allocator_struct
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{
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char * * packs;
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int max_num_packs;
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int num_packs;
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char * max_ptr;
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char * ptr;
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char * rollback_ptr;
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};
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typedef struct fcs_compact_allocator_struct fcs_compact_allocator_t;
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extern fcs_compact_allocator_t *
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freecell_solver_compact_allocator_new(void);
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extern void freecell_solver_compact_allocator_extend(
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fcs_compact_allocator_t * allocator
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);
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#if 0
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extern char *
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freecell_solver_compact_allocator_alloc(
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fcs_compact_allocator_t * allocator,
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int how_much
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);
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#else
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#define fcs_compact_alloc_into_var(result,allocator_orig,what_t) \
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{ \
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register fcs_compact_allocator_t * allocator = (allocator_orig); \
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if (allocator->max_ptr - allocator->ptr < sizeof(what_t)) \
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{ \
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freecell_solver_compact_allocator_extend(allocator); \
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} \
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allocator->rollback_ptr = allocator->ptr; \
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allocator->ptr += ((sizeof(what_t))+(sizeof(char *)-((sizeof(what_t))&(sizeof(char *)-1)))); \
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result = (what_t *)allocator->rollback_ptr; \
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}
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#define fcs_compact_alloc_typed_ptr_into_var(result, type_t, allocator_orig, how_much_orig) \
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{ \
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register fcs_compact_allocator_t * allocator = (allocator_orig); \
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register int how_much = (how_much_orig); \
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if (allocator->max_ptr - allocator->ptr < how_much) \
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{ \
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freecell_solver_compact_allocator_extend(allocator); \
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} \
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allocator->rollback_ptr = allocator->ptr; \
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/* Round ptr to the next pointer boundary */ \
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allocator->ptr += ((how_much)+((sizeof(char *)-((how_much)&(sizeof(char *)-1)))&(sizeof(char*)-1))); \
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result = (type_t *)allocator->rollback_ptr; \
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}
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#endif
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#if 0
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extern void freecell_solver_compact_allocator_release(fcs_compact_allocator_t * allocator);
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#else
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#define fcs_compact_alloc_release(allocator) \
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{ \
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(allocator)->ptr = (allocator)->rollback_ptr; \
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}
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#endif
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extern void freecell_solver_compact_allocator_finish(fcs_compact_allocator_t * allocator);
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extern void freecell_solver_compact_allocator_foreach(
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fcs_compact_allocator_t * allocator,
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int data_width,
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void (*ptr_function)(void *, void *),
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void * context
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);
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#ifdef __cplusplus
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};
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#endif
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#endif
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