diff options
author | Max Kellermann <max@duempel.org> | 2012-01-24 18:20:58 +0100 |
---|---|---|
committer | Max Kellermann <max@duempel.org> | 2012-01-24 20:49:53 +0100 |
commit | d99f074eb73d5228528961a78c13419c2c4c26ae (patch) | |
tree | 26749b6a0feb81d1bda7d0e1511d38ba1716cfcd /src/dirvec.c | |
parent | a989140a0767823fcec4ef745b639b92838413f9 (diff) | |
download | mpd-d99f074eb73d5228528961a78c13419c2c4c26ae.tar.gz mpd-d99f074eb73d5228528961a78c13419c2c4c26ae.tar.xz mpd-d99f074eb73d5228528961a78c13419c2c4c26ae.zip |
directory: replace dirvec with doubly linked list
Random access is not needed, and a linked list is easier to manage: we
don't need to (re-)allocate the pointer array.
Diffstat (limited to 'src/dirvec.c')
-rw-r--r-- | src/dirvec.c | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/src/dirvec.c b/src/dirvec.c deleted file mode 100644 index acc573e13..000000000 --- a/src/dirvec.c +++ /dev/null @@ -1,111 +0,0 @@ -/* - * Copyright (C) 2003-2011 The Music Player Daemon Project - * http://www.musicpd.org - * - * 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 2 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, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include "config.h" -#include "dirvec.h" -#include "directory.h" -#include "db_lock.h" - -#include <glib.h> - -#include <assert.h> -#include <string.h> -#include <stdlib.h> - -static size_t dv_size(const struct dirvec *dv) -{ - return dv->nr * sizeof(struct directory *); -} - -/* Only used for sorting/searching a dirvec, not general purpose compares */ -static int dirvec_cmp(const void *d1, const void *d2) -{ - const struct directory *a = ((const struct directory * const *)d1)[0]; - const struct directory *b = ((const struct directory * const *)d2)[0]; - return g_utf8_collate(a->path, b->path); -} - -void dirvec_sort(struct dirvec *dv) -{ - db_lock(); - qsort(dv->base, dv->nr, sizeof(struct directory *), dirvec_cmp); - db_unlock(); -} - -struct directory *dirvec_find(const struct dirvec *dv, const char *path) -{ - int i; - - db_lock(); - for (i = dv->nr; --i >= 0; ) - if (!strcmp(directory_get_name(dv->base[i]), path)) { - db_unlock(); - return dv->base[i]; - } - - db_unlock(); - - return NULL; -} - -int dirvec_delete(struct dirvec *dv, struct directory *del) -{ - size_t i; - - db_lock(); - for (i = 0; i < dv->nr; ++i) { - if (dv->base[i] != del) - continue; - /* we _don't_ call directory_free() here */ - if (!--dv->nr) { - db_unlock(); - g_free(dv->base); - dv->base = NULL; - return i; - } else { - memmove(&dv->base[i], &dv->base[i + 1], - (dv->nr - i) * sizeof(struct directory *)); - dv->base = g_realloc(dv->base, dv_size(dv)); - } - break; - } - db_unlock(); - - return i; -} - -void dirvec_add(struct dirvec *dv, struct directory *add) -{ - db_lock(); - ++dv->nr; - dv->base = g_realloc(dv->base, dv_size(dv)); - dv->base[dv->nr - 1] = add; - db_unlock(); -} - -void dirvec_destroy(struct dirvec *dv) -{ - db_lock(); - dv->nr = 0; - db_unlock(); - if (dv->base) { - g_free(dv->base); - dv->base = NULL; - } -} |