Changeset b72efe8 in mainline for uspace/lib/c/include


Ignore:
Timestamp:
2011-06-19T14:38:59Z (15 years ago)
Author:
Jiri Svoboda <jiri@…>
Branches:
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
74464e8
Parents:
1d1bb0f
Message:

Separate list_t typedef from link_t (user-space part).

  • list_t represents lists
  • Use list_first(), list_last(), list_empty() where appropriate
  • Use list_foreach() where possible
  • assert_link_not_used()
  • usb_hid_report_path_free() shall not unlink the path, caller must do it
Location:
uspace/lib/c/include
Files:
6 edited

Legend:

Unmodified
Added
Removed
  • uspace/lib/c/include/adt/hash_table.h

    r1d1bb0f rb72efe8  
    7575/** Hash table structure. */
    7676typedef struct {
    77         link_t *entry;
     77        list_t *entry;
    7878        hash_count_t entries;
    7979        hash_count_t max_keys;
  • uspace/lib/c/include/adt/list.h

    r1d1bb0f rb72efe8  
    11/*
    22 * Copyright (c) 2001-2004 Jakub Jermar
     3 * Copyright (c) 2011 Jiri Svoboda
    34 * All rights reserved.
    45 *
     
    3637#define LIBC_LIST_H_
    3738
     39#include <assert.h>
    3840#include <unistd.h>
    3941
    40 /** Doubly linked list head and link type. */
     42/** Doubly linked list link. */
    4143typedef struct link {
    4244        struct link *prev;  /**< Pointer to the previous item in the list. */
     
    4446} link_t;
    4547
     48/** Doubly linked list. */
     49typedef struct list {
     50        link_t head;  /**< List head. Does not have any data. */
     51} list_t;
     52
    4653/** Declare and initialize statically allocated list.
    4754 *
     
    5057 */
    5158#define LIST_INITIALIZE(name) \
    52         link_t name = { \
    53                 .prev = &name, \
    54                 .next = &name \
     59        list_t name = { \
     60                .head = { \
     61                        .prev = &(name).head, \
     62                        .next = &(name).head \
     63                } \
    5564        }
    5665
     
    5968
    6069#define list_foreach(list, iterator) \
    61         for (link_t *iterator = (list).next; \
    62             iterator != &(list); iterator = iterator->next)
     70        for (link_t *iterator = (list).head.next; \
     71            iterator != &(list).head; iterator = iterator->next)
     72
     73#define assert_link_not_used(link) \
     74        assert((link)->prev == NULL && (link)->next == NULL)
    6375
    6476/** Initialize doubly-linked circular list link
     
    7991 * Initialize doubly-linked circular list.
    8092 *
    81  * @param list Pointer to link_t structure representing the list.
    82  *
    83  */
    84 static inline void list_initialize(link_t *list)
    85 {
    86         list->prev = list;
    87         list->next = list;
     93 * @param list Pointer to list_t structure.
     94 *
     95 */
     96static inline void list_initialize(list_t *list)
     97{
     98        list->head.prev = &list->head;
     99        list->head.next = &list->head;
     100}
     101
     102/** Insert item before another item in doubly-linked circular list.
     103 *
     104 */
     105static inline void list_insert_before(link_t *lnew, link_t *lold)
     106{
     107        lnew->next = lold;
     108        lnew->prev = lold->prev;
     109        lold->prev->next = lnew;
     110        lold->prev = lnew;
     111}
     112
     113/** Insert item after another item in doubly-linked circular list.
     114 *
     115 */
     116static inline void list_insert_after(link_t *lnew, link_t *lold)
     117{
     118        lnew->prev = lold;
     119        lnew->next = lold->next;
     120        lold->next->prev = lnew;
     121        lold->next = lnew;
    88122}
    89123
     
    93127 *
    94128 * @param link Pointer to link_t structure to be added.
    95  * @param list Pointer to link_t structure representing the list.
    96  *
    97  */
    98 static inline void list_prepend(link_t *link, link_t *list)
    99 {
    100         link->next = list->next;
    101         link->prev = list;
    102         list->next->prev = link;
    103         list->next = link;
     129 * @param list Pointer to list_t structure.
     130 *
     131 */
     132static inline void list_prepend(link_t *link, list_t *list)
     133{
     134        list_insert_after(link, &list->head);
    104135}
    105136
     
    109140 *
    110141 * @param link Pointer to link_t structure to be added.
    111  * @param list Pointer to link_t structure representing the list.
    112  *
    113  */
    114 static inline void list_append(link_t *link, link_t *list)
    115 {
    116         link->prev = list->prev;
    117         link->next = list;
    118         list->prev->next = link;
    119         list->prev = link;
    120 }
    121 
    122 /** Insert item before another item in doubly-linked circular list.
    123  *
    124  */
    125 static inline void list_insert_before(link_t *link, link_t *list)
    126 {
    127         list_append(link, list);
    128 }
    129 
    130 /** Insert item after another item in doubly-linked circular list.
    131  *
    132  */
    133 static inline void list_insert_after(link_t *link, link_t *list)
    134 {
    135         list_prepend(list, link);
     142 * @param list Pointer to list_t structure.
     143 *
     144 */
     145static inline void list_append(link_t *link, list_t *list)
     146{
     147        list_insert_before(link, &list->head);
    136148}
    137149
     
    155167 * Query emptiness of doubly-linked circular list.
    156168 *
    157  * @param list Pointer to link_t structure representing the list.
    158  *
    159  */
    160 static inline int list_empty(link_t *list)
    161 {
    162         return (list->next == list);
    163 }
    164 
    165 /** Get head item of a list.
    166  *
    167  * @param list Pointer to link_t structure representing the list.
     169 * @param list Pointer to lins_t structure.
     170 *
     171 */
     172static inline int list_empty(list_t *list)
     173{
     174        return (list->head.next == &list->head);
     175}
     176
     177/** Get first item in list.
     178 *
     179 * @param list Pointer to list_t structure.
    168180 *
    169181 * @return Head item of the list.
     
    171183 *
    172184 */
    173 static inline link_t *list_head(link_t *list)
    174 {
    175         return ((list->next == list) ? NULL : list->next);
     185static inline link_t *list_first(list_t *list)
     186{
     187        return ((list->head.next == &list->head) ? NULL : list->head.next);
     188}
     189
     190/** Get last item in list.
     191 *
     192 * @param list Pointer to list_t structure.
     193 *
     194 * @return Head item of the list.
     195 * @return NULL if the list is empty.
     196 *
     197 */
     198static inline link_t *list_last(list_t *list)
     199{
     200        return ((list->head.prev == &list->head) ? NULL : list->head.prev);
    176201}
    177202
     
    230255}
    231256
    232 /** Get n-th item of a list.
     257/** Get n-th item in a list.
    233258 *
    234259 * @param list Pointer to link_t structure representing the list.
     
    239264 *
    240265 */
    241 static inline link_t *list_nth(link_t *list, unsigned int n)
     266static inline link_t *list_nth(list_t *list, unsigned int n)
    242267{
    243268        unsigned int cnt = 0;
     
    253278}
    254279
    255 extern int list_member(const link_t *, const link_t *);
    256 extern void list_concat(link_t *, link_t *);
    257 extern unsigned int list_count(const link_t *);
     280extern int list_member(const link_t *, const list_t *);
     281extern void list_concat(list_t *, list_t *);
     282extern unsigned int list_count(const list_t *);
    258283
    259284#endif
  • uspace/lib/c/include/adt/prodcons.h

    r1d1bb0f rb72efe8  
    4242        fibril_mutex_t mtx;
    4343        fibril_condvar_t cv;
    44         link_t list;
     44        list_t list;
    4545} prodcons_t;
    4646
  • uspace/lib/c/include/async.h

    r1d1bb0f rb72efe8  
    9999typedef struct {
    100100        /** List of inactive exchanges */
    101         link_t exch_list;
     101        list_t exch_list;
    102102       
    103103        /** Exchange management style */
  • uspace/lib/c/include/fibril_synch.h

    r1d1bb0f rb72efe8  
    4545        fibril_owner_info_t oi;  /**< Keep this the first thing. */
    4646        int counter;
    47         link_t waiters;
     47        list_t waiters;
    4848} fibril_mutex_t;
    4949
     
    5555                .counter = 1, \
    5656                .waiters = { \
    57                         .prev = &name.waiters, \
    58                         .next = &name.waiters, \
     57                        .head = { \
     58                                .prev = &(name).waiters.head, \
     59                                .next = &(name).waiters.head, \
     60                        } \
    5961                } \
    6062        }
     
    6769        unsigned writers;
    6870        unsigned readers;
    69         link_t waiters;
     71        list_t waiters;
    7072} fibril_rwlock_t;
    7173
     
    7880                .writers = 0, \
    7981                .waiters = { \
    80                         .prev = &name.waiters, \
    81                         .next = &name.waiters, \
     82                        .head = { \
     83                                .prev = &(name).waiters.head, \
     84                                .next = &(name).waiters.head, \
     85                        } \
    8286                } \
    8387        }
     
    8791
    8892typedef struct {
    89         link_t waiters;
     93        list_t waiters;
    9094} fibril_condvar_t;
    9195
     
    9397        { \
    9498                .waiters = { \
    95                         .next = &name.waiters, \
    96                         .prev = &name.waiters, \
     99                        .head = { \
     100                                .next = &(name).waiters.head, \
     101                                .prev = &(name).waiters.head, \
     102                        } \
    97103                } \
    98104        }
  • uspace/lib/c/include/ipc/devman.h

    r1d1bb0f rb72efe8  
    7272 */
    7373typedef struct match_id_list {
    74         link_t ids;
     74        list_t ids;
    7575} match_id_list_t;
    7676
     
    9595{
    9696        match_id_t *mid = NULL;
    97         link_t *link = ids->ids.next;
     97        link_t *link = ids->ids.head.next;
    9898       
    99         while (link != &ids->ids) {
     99        while (link != &ids->ids.head) {
    100100                mid = list_get_instance(link, match_id_t,link);
    101101                if (mid->score < id->score) {
    102102                        break;
    103                 }       
     103                }
    104104                link = link->next;
    105105        }
     
    118118        match_id_t *id;
    119119       
    120         while(!list_empty(&ids->ids)) {
    121                 link = ids->ids.next;
    122                 list_remove(link);             
     120        while (!list_empty(&ids->ids)) {
     121                link = list_first(&ids->ids);
     122                list_remove(link);
    123123                id = list_get_instance(link, match_id_t, link);
    124                 delete_match_id(id);           
    125         }       
     124                delete_match_id(id);
     125        }
    126126}
    127127
Note: See TracChangeset for help on using the changeset viewer.