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core: remove table.h
No more users of this. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
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116
core/table.h
116
core/table.h
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// SPDX-License-Identifier: GPL-2.0
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/* This header defines a number of macros that generate table-manipulation functions.
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* There is no design behind these macros - the functions were take as-is and transformed
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* into macros. Thus, this whole header could do with some redesign. */
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#ifndef CORE_TABLE_H
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#define CORE_TABLE_H
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#define MAKE_GROW_TABLE(table_type, item_type, array_name) \
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item_type *grow_##table_type(struct table_type *table) \
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{ \
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int nr = table->nr, allocated = table->allocated; \
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item_type *items = table->array_name; \
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\
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if (nr >= allocated) { \
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allocated = (nr + 32) * 3 / 2; \
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items = (item_type *)realloc(items, allocated * sizeof(item_type)); \
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if (!items) \
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exit(1); \
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table->array_name = items; \
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table->allocated = allocated; \
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} \
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return items; \
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}
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/* get the index where we want to insert an object so that everything stays
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* ordered according to a comparison function() */
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#define MAKE_GET_INSERTION_INDEX(table_type, item_type, array_name, fun) \
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int table_type##_get_insertion_index(struct table_type *table, item_type item) \
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{ \
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/* we might want to use binary search here */ \
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for (int i = 0; i < table->nr; i++) { \
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if (fun(item, table->array_name[i])) \
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return i; \
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} \
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return table->nr; \
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}
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/* add object at the given index to a table. */
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#define MAKE_ADD_TO(table_type, item_type, array_name) \
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void add_to_##table_type(struct table_type *table, int idx, item_type item) \
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{ \
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int i; \
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grow_##table_type(table); \
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table->nr++; \
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\
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for (i = idx; i < table->nr; i++) { \
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item_type tmp = table->array_name[i]; \
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table->array_name[i] = item; \
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item = tmp; \
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} \
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}
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#define MAKE_REMOVE_FROM(table_type, array_name) \
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void remove_from_##table_type(struct table_type *table, int idx) \
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{ \
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int i; \
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for (i = idx; i < table->nr - 1; i++) \
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table->array_name[i] = table->array_name[i + 1]; \
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memset(&table->array_name[--table->nr], 0, sizeof(table->array_name[0])); \
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}
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#define MAKE_GET_IDX(table_type, item_type, array_name) \
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int get_idx_in_##table_type(const struct table_type *table, const item_type item) \
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{ \
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for (int i = 0; i < table->nr; ++i) { \
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if (table->array_name[i] == item) \
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return i; \
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} \
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return -1; \
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}
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#define MAKE_SORT(table_type, item_type, array_name, fun) \
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static int sortfn_##table_type(const void *_a, const void *_b) \
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{ \
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const item_type a = *(const item_type *)_a; \
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const item_type b = *(const item_type *)_b; \
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return fun(a, b); \
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} \
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\
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void sort_##table_type(struct table_type *table) \
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{ \
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qsort(table->array_name, table->nr, sizeof(item_type), sortfn_##table_type); \
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}
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#define MAKE_REMOVE(table_type, item_type, item_name) \
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int remove_##item_name(const item_type item, struct table_type *table) \
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{ \
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int idx = get_idx_in_##table_type(table, item); \
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if (idx >= 0) \
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remove_from_##table_type(table, idx); \
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return idx; \
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}
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#define MAKE_CLEAR_TABLE(table_type, array_name, item_name) \
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void clear_##table_type(struct table_type *table) \
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{ \
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for (int i = 0; i < table->nr; i++) \
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free_##item_name(table->array_name[i]); \
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free(table->array_name); \
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table->array_name = NULL; \
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table->allocated = 0; \
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table->nr = 0; \
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}
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/* Move data of one table to the other - source table is empty after call. */
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#define MAKE_MOVE_TABLE(table_type, array_name) \
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void move_##table_type(struct table_type *src, struct table_type *dst) \
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{ \
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clear_##table_type(dst); \
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free(dst->array_name); \
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*dst = *src; \
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src->nr = src->allocated = 0; \
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src->array_name = NULL; \
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}
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#endif
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