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85 lines
2.0 KiB
85 lines
2.0 KiB
/*
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* UCW Library -- Linked Lists of Simple Items
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*
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* (c) 2006 Martin Mares <mj@ucw.cz>
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*
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* This software may be freely distributed and used according to the terms
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* of the GNU Lesser General Public License.
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*/
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#ifndef _UCW_SIMPLE_LISTS_H
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#define _UCW_SIMPLE_LISTS_H
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#include <ucw/clists.h>
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#ifdef CONFIG_UCW_CLEAN_ABI
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#define cf_2string_list_config ucw_cf_2string_list_config
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#define cf_string_list_config ucw_cf_string_list_config
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#define simp2_append ucw_simp2_append
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#define simp_append ucw_simp_append
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#endif
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/***
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* To simplify very common usage of circular linked links, whose nodes can hold only one or two trivial values,
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* we define some generic node types, called the simple nodes.
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*
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* To avoid some type casts, values in simple nodes are defined as unions of most frequent types.
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***/
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/**
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* Simple node with one value.
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**/
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typedef struct simp_node {
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cnode n;
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union {
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char *s;
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void *p;
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int i;
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uint u;
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};
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} simp_node;
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/**
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* Simple node with two values.
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**/
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typedef struct simp2_node {
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cnode n;
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union {
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char *s1;
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void *p1;
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int i1;
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uint u1;
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};
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union {
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char *s2;
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void *p2;
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int i2;
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uint u2;
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};
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} simp2_node;
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struct mempool;
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/**
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* Allocate a new one-value node on memory pool @mp and insert it to @l. The value is undefined and should be changed afterwards.
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**/
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simp_node *simp_append(struct mempool *mp, clist *l);
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/**
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* Allocate a new two-value node on memory pool @mp and insert it to @l. The values are undefined and should be changed afterwards.
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**/
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simp2_node *simp2_append(struct mempool *mp, clist *l);
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/* Configuration sections */
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/**
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* Default definition of the configuration section with one-value string node. Identifier of the value is `String`.
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**/
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extern struct cf_section cf_string_list_config;
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/**
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* Default definition of the configuration section with two-value string node. Identifiers of the values are `Src` and `Dest`.
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**/
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extern struct cf_section cf_2string_list_config;
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#endif
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