/*
* Copyright (c) 2025 Jiri Svoboda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup fmgt
* @{
*/
/** @file File list.
*/
#include <adt/list.h>
#include <errno.h>
#include <stdlib.h>
#include <str.h>
#include "fmgt.h"
/** Create file list.
*
* @param rflist Place to store pointer to new file list.
* @return EOK on success, ENOMEM if out of memory.
*/
errno_t fmgt_flist_create(fmgt_flist_t **rflist)
{
fmgt_flist_t *flist;
flist = calloc(1, sizeof(fmgt_flist_t));
if (flist == NULL)
return ENOMEM;
list_initialize(&flist->files);
*rflist = flist;
return EOK;
}
/** Append file name to file list.
*
* @param flist File list
* @param fname File name to append
* @return EOK on success, ENOMEM if out of memory
*/
errno_t fmgt_flist_append(fmgt_flist_t *flist, const char *fname)
{
fmgt_flist_entry_t *entry;
entry = calloc(1, sizeof(fmgt_flist_entry_t));
if (entry == NULL)
return ENOMEM;
entry->fname = str_dup(fname);
if (entry->fname == NULL) {
free(entry);
return ENOMEM;
}
entry->flist = flist;
list_append(&entry->lfiles, &flist->files);
return EOK;
}
/** Destroy file list.
*
* @param flist File list
*/
void fmgt_flist_destroy(fmgt_flist_t *flist)
{
fmgt_flist_entry_t *entry;
entry = fmgt_flist_first(flist);
while (entry != NULL) {
list_remove(&entry->lfiles);
free(entry->fname);
free(entry);
entry = fmgt_flist_first(flist);
}
free(flist);
}
/** Get first file list entry.
*
* @param flist File list
* @return First file list entry or @c NULL iff list list empty
*/
fmgt_flist_entry_t *fmgt_flist_first(fmgt_flist_t *flist)
{
link_t *link;
link = list_first(&flist->files);
if (link == NULL)
return NULL;
return list_get_instance(link, fmgt_flist_entry_t, lfiles);
}
/** Get first new list entry.
*
* @param entry Current file list entry
* @return Next file list entry or @c NULL iff @a entry is last
*/
fmgt_flist_entry_t *fmgt_flist_next(fmgt_flist_entry_t *entry)
{
link_t *link;
link = list_next(&entry->lfiles, &entry->flist->files);
if (link == NULL)
return NULL;
return list_get_instance(link, fmgt_flist_entry_t, lfiles);
}
/** Return number of entries in file list.
*
* @param flist File list
* @return Number of entries in @a flist.
*/
unsigned fmgt_flist_count(fmgt_flist_t *flist)
{
unsigned count;
fmgt_flist_entry_t *entry;
count = 0;
entry = fmgt_flist_first(flist);
while (entry != NULL) {
++count;
entry = fmgt_flist_next(entry);
}
return count;
}
/** @}
*/