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| | /* filenames.c - Iterator for a list of filenames
*
* Copyright © 2010 Intel Corporation
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/ .
*
* Author: Carl Worth <cworth@cworth.org>
*/
#include "notmuch-private.h"
struct _notmuch_filenames {
notmuch_string_node_t *first;
notmuch_string_node_t *iterator;
};
/* The notmuch_filenames_t iterates over a notmuch_string_list_t of
* file names */
notmuch_filenames_t *
_notmuch_filenames_create (const void *ctx,
notmuch_string_list_t *list)
{
notmuch_filenames_t *filenames;
filenames = talloc (ctx, notmuch_filenames_t);
if (unlikely (filenames == NULL))
return NULL;
filenames->first = list->head;
filenames->iterator = list->head;
(void) talloc_reference (filenames, list);
return filenames;
}
notmuch_bool_t
notmuch_filenames_valid (notmuch_filenames_t *filenames)
{
if (filenames == NULL)
return FALSE;
return (filenames->iterator != NULL);
}
const char *
notmuch_filenames_get (notmuch_filenames_t *filenames)
{
if ((filenames == NULL) || (filenames->iterator == NULL))
return NULL;
return filenames->iterator->string;
}
void
notmuch_filenames_move_to_next (notmuch_filenames_t *filenames)
{
if ((filenames == NULL) || (filenames->iterator == NULL))
return;
filenames->iterator = filenames->iterator->next;
}
void
notmuch_filenames_rewind (notmuch_filenames_t *filenames)
{
if (filenames == NULL)
return;
filenames->iterator = filenames->first;
}
void
notmuch_filenames_destroy (notmuch_filenames_t *filenames)
{
talloc_free (filenames);
}
|