| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 "fs/fs.h" |
| #include "fs/fs_if.h" |
| #include "fs_priv.h" |
| #include <string.h> |
| |
| static SLIST_HEAD(, fs_ops) root_fops = SLIST_HEAD_INITIALIZER(); |
| |
| #if MYNEWT_VAL(FS_CLI) |
| static uint8_t g_cli_initialized; |
| #endif |
| |
| #if MYNEWT_VAL(FS_NMGR) |
| static uint8_t g_nmgr_initialized; |
| #endif |
| |
| int |
| fs_register(struct fs_ops *fops) |
| { |
| struct fs_ops *sc; |
| |
| SLIST_FOREACH(sc, &root_fops, sc_next) { |
| if (strcmp(sc->f_name, fops->f_name) == 0) { |
| return FS_EEXIST; |
| } |
| } |
| |
| SLIST_INSERT_HEAD(&root_fops, fops, sc_next); |
| |
| #if MYNEWT_VAL(FS_CLI) |
| if (!g_cli_initialized) { |
| fs_cli_init(); |
| g_cli_initialized = 1; |
| } |
| #endif |
| |
| #if MYNEWT_VAL(FS_NMGR) |
| if (!g_nmgr_initialized) { |
| fs_nmgr_init(); |
| g_nmgr_initialized = 1; |
| } |
| #endif |
| |
| return FS_EOK; |
| } |
| |
| struct fs_ops * |
| fs_ops_try_unique(void) |
| { |
| struct fs_ops *fops = SLIST_FIRST(&root_fops); |
| |
| if (fops && !SLIST_NEXT(fops, sc_next)) { |
| return fops; |
| } |
| |
| return NULL; |
| } |
| |
| struct fs_ops * |
| fs_ops_for(const char *fs_name) |
| { |
| struct fs_ops *fops = NULL; |
| struct fs_ops *sc; |
| |
| if (fs_name) { |
| SLIST_FOREACH(sc, &root_fops, sc_next) { |
| if (strcmp(sc->f_name, fs_name) == 0) { |
| fops = sc; |
| break; |
| } |
| } |
| } |
| |
| return fops; |
| } |
| |
| struct fs_ops not_initialized_ops; |
| |
| struct fs_ops * |
| fs_ops_from_container(struct fops_container *container) |
| { |
| if (!container) { |
| return ¬_initialized_ops; |
| } |
| return container->fops; |
| } |