1b6464d815
seems coutner-intuitive, as everything else requires a pointer.... This commit was SVN r611.
72 строки
2.0 KiB
C
72 строки
2.0 KiB
C
/*
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* $HEADER$
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*/
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#include "lam_config.h"
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#include "lam/mem/free_list.h"
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lam_class_info_t lam_free_list_cls = {
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"lam_free_list_t",
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&lam_list_cls,
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(class_init_t)lam_free_list_init,
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(class_destroy_t)lam_free_list_destroy
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};
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void lam_free_list_init(lam_free_list_t* fl)
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{
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SUPER_INIT(fl, &lam_list_cls);
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}
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void lam_free_list_destroy(lam_free_list_t* fl)
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{
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SUPER_DESTROY(fl, &lam_list_cls);
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}
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int lam_free_list_init_with(
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lam_free_list_t *flist,
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size_t elem_size,
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lam_class_info_t* elem_class,
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int num_elements_to_alloc,
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int max_elements_to_alloc,
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int num_elements_per_alloc,
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lam_allocator_t* allocator)
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{
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flist->fl_elem_size = elem_size;
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flist->fl_elem_class = elem_class;
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flist->fl_max_to_alloc = max_elements_to_alloc;
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flist->fl_num_allocated = 0;
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flist->fl_num_per_alloc = num_elements_per_alloc;
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flist->fl_allocator = allocator;
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return lam_free_list_grow(flist, num_elements_to_alloc);
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}
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int lam_free_list_grow(lam_free_list_t* flist, size_t num_elements)
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{
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unsigned char* ptr;
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size_t i;
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if (flist->fl_max_to_alloc > 0 && flist->fl_num_allocated + num_elements > flist->fl_max_to_alloc)
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return LAM_ERR_TEMP_OUT_OF_RESOURCE;
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if (NULL != flist->fl_allocator)
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ptr = (unsigned char*)lam_allocator_alloc(flist->fl_allocator, num_elements * flist->fl_elem_size);
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else
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ptr = (unsigned char*)LAM_MALLOC(num_elements * flist->fl_elem_size);
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if(NULL == ptr)
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return LAM_ERR_TEMP_OUT_OF_RESOURCE;
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for(i=0; i<num_elements; i++) {
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lam_list_item_t* item = (lam_list_item_t*)ptr;
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if (NULL != flist->fl_elem_class)
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STATIC_INIT((*item), flist->fl_elem_class);
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lam_list_append(&flist->super, item);
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ptr += flist->fl_elem_size;
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}
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flist->fl_num_allocated += num_elements;
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return LAM_SUCCESS;
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}
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