163 lines
3.9 KiB
C
163 lines
3.9 KiB
C
|
|
/*
|
|
* Copyright (C) 2008 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <dirent.h>
|
|
#include <errno.h>
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include "vold.h"
|
|
#include "media.h"
|
|
|
|
static media_list_t *list_root = NULL;
|
|
|
|
media_t *media_create(char *devpath, char *name, char *serial, media_type_t type)
|
|
{
|
|
media_list_t *list_entry;
|
|
media_t *new;
|
|
|
|
if (!(new = malloc(sizeof(media_t))))
|
|
return NULL;
|
|
|
|
memset(new, 0, sizeof(media_t));
|
|
|
|
if (!(list_entry = malloc(sizeof(media_list_t)))) {
|
|
free(new);
|
|
return NULL;
|
|
}
|
|
list_entry->media = new;
|
|
list_entry->next = NULL;
|
|
|
|
if (!list_root)
|
|
list_root = list_entry;
|
|
else {
|
|
media_list_t *list_scan = list_root;
|
|
while(list_scan->next)
|
|
list_scan = list_scan->next;
|
|
list_scan->next = list_entry;
|
|
}
|
|
|
|
new->devpath = strdup(devpath);
|
|
new->name = strdup(name);
|
|
if (!serial)
|
|
new->serial = 0;
|
|
else
|
|
new->serial = strtoul(serial, NULL, 0);
|
|
|
|
new->media_type = type;
|
|
|
|
return new;
|
|
}
|
|
|
|
void media_destroy(media_t *media)
|
|
{
|
|
media_list_t *list_next;
|
|
|
|
if (list_root->media == media) {
|
|
list_next = list_root->next;
|
|
free(list_root);
|
|
list_root = list_next;
|
|
} else {
|
|
media_list_t *list_scan = list_root;
|
|
while (list_scan->next->media != media)
|
|
list_scan = list_scan -> next;
|
|
list_next = list_scan->next->next;
|
|
free(list_scan->next);
|
|
list_scan->next = list_next;
|
|
}
|
|
|
|
free(media->devpath);
|
|
free(media->name);
|
|
|
|
while(media->devs)
|
|
media_remove_blkdev(media, media->devs->dev);
|
|
free(media);
|
|
}
|
|
|
|
media_t *media_lookup_by_path(char *devpath, boolean fuzzy_match)
|
|
{
|
|
media_list_t *list_scan = list_root;
|
|
|
|
while (list_scan) {
|
|
if (fuzzy_match) {
|
|
if (!strncmp(list_scan->media->devpath, devpath, strlen(devpath)))
|
|
return list_scan->media;
|
|
} else {
|
|
if (!strcmp(list_scan->media->devpath, devpath))
|
|
return list_scan->media;
|
|
}
|
|
list_scan = list_scan->next;
|
|
}
|
|
#if DEBUG_MEDIA
|
|
LOG_VOL("media_lookup_by_path(): No media found @ %s", devpath);
|
|
#endif
|
|
return NULL;
|
|
}
|
|
|
|
int media_add_blkdev(media_t *card, blkdev_t *dev)
|
|
{
|
|
blkdev_list_t *list_entry;
|
|
|
|
if (!(list_entry = malloc(sizeof(blkdev_list_t))))
|
|
return -ENOMEM;
|
|
|
|
list_entry->next = NULL;
|
|
list_entry->dev = dev;
|
|
if (!card->devs)
|
|
card->devs = list_entry;
|
|
else {
|
|
blkdev_list_t *scan = card->devs;
|
|
|
|
while(scan->next)
|
|
scan = scan->next;
|
|
|
|
scan->next = list_entry;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void media_remove_blkdev(media_t *card, blkdev_t *dev)
|
|
{
|
|
if (card->devs->dev == dev)
|
|
card->devs = card->devs->next;
|
|
else {
|
|
blkdev_list_t *scan = card->devs;
|
|
while (scan->next->dev != dev)
|
|
scan = scan -> next;
|
|
blkdev_list_t *next = scan->next->next;
|
|
free(scan->next);
|
|
scan->next = next;
|
|
}
|
|
}
|
|
|
|
media_t *media_lookup_by_dev(blkdev_t *dev)
|
|
{
|
|
media_list_t *media_scan = list_root;
|
|
|
|
while (media_scan) {
|
|
blkdev_list_t *blk_scan = media_scan->media->devs;
|
|
while (blk_scan) {
|
|
if (blk_scan->dev == dev)
|
|
return media_scan->media;
|
|
blk_scan = blk_scan->next;
|
|
}
|
|
media_scan = media_scan->next;
|
|
}
|
|
return NULL;
|
|
}
|