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esp-idf/components/spiffs/esp_spiffs.c
Marius Vikhammer 9c8e4fd4c5 C3: build and run unit tests 
Enable building and running of unit tests in CI for C3 as well as fix
related compile errors

Also enables building of C3 test apps
2021-01-11 11:34:37 +08:00

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// Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD
//
// 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 "esp_spiffs.h"
#include "spiffs.h"
#include "spiffs_nucleus.h"
#include "esp_log.h"
#include "esp_partition.h"
#include "esp_spi_flash.h"
#include "esp_image_format.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
#include <unistd.h>
#include <dirent.h>
#include <sys/errno.h>
#include <sys/fcntl.h>
#include <sys/lock.h>
#include "esp_vfs.h"
#include "esp_err.h"
#if CONFIG_IDF_TARGET_ESP32
#include "esp32/rom/spi_flash.h"
#elif CONFIG_IDF_TARGET_ESP32S2
#include "esp32s2/rom/spi_flash.h"
#elif CONFIG_IDF_TARGET_ESP32S3
#include "esp32s3/rom/spi_flash.h"
#elif CONFIG_IDF_TARGET_ESP32C3
#include "esp32c3/rom/spi_flash.h"
#endif
#include "spiffs_api.h"
static const char* TAG = "SPIFFS";
#ifdef CONFIG_SPIFFS_USE_MTIME
#ifdef CONFIG_SPIFFS_MTIME_WIDE_64_BITS
typedef time_t spiffs_time_t;
#else
typedef unsigned long spiffs_time_t;
#endif
_Static_assert(CONFIG_SPIFFS_META_LENGTH >= sizeof(spiffs_time_t),
"SPIFFS_META_LENGTH size should be >= sizeof(spiffs_time_t)");
#endif //CONFIG_SPIFFS_USE_MTIME
/**
* @brief SPIFFS DIR structure
*/
typedef struct {
DIR dir; /*!< VFS DIR struct */
spiffs_DIR d; /*!< SPIFFS DIR struct */
struct dirent e; /*!< Last open dirent */
long offset; /*!< Offset of the current dirent */
char path[SPIFFS_OBJ_NAME_LEN]; /*!< Requested directory name */
} vfs_spiffs_dir_t;
static int vfs_spiffs_open(void* ctx, const char * path, int flags, int mode);
static ssize_t vfs_spiffs_write(void* ctx, int fd, const void * data, size_t size);
static ssize_t vfs_spiffs_read(void* ctx, int fd, void * dst, size_t size);
static int vfs_spiffs_close(void* ctx, int fd);
static off_t vfs_spiffs_lseek(void* ctx, int fd, off_t offset, int mode);
static int vfs_spiffs_fstat(void* ctx, int fd, struct stat * st);
#ifdef CONFIG_VFS_SUPPORT_DIR
static int vfs_spiffs_stat(void* ctx, const char * path, struct stat * st);
static int vfs_spiffs_unlink(void* ctx, const char *path);
static int vfs_spiffs_link(void* ctx, const char* n1, const char* n2);
static int vfs_spiffs_rename(void* ctx, const char *src, const char *dst);
static DIR* vfs_spiffs_opendir(void* ctx, const char* name);
static int vfs_spiffs_closedir(void* ctx, DIR* pdir);
static struct dirent* vfs_spiffs_readdir(void* ctx, DIR* pdir);
static int vfs_spiffs_readdir_r(void* ctx, DIR* pdir,
struct dirent* entry, struct dirent** out_dirent);
static long vfs_spiffs_telldir(void* ctx, DIR* pdir);
static void vfs_spiffs_seekdir(void* ctx, DIR* pdir, long offset);
static int vfs_spiffs_mkdir(void* ctx, const char* name, mode_t mode);
static int vfs_spiffs_rmdir(void* ctx, const char* name);
#ifdef CONFIG_SPIFFS_USE_MTIME
static int vfs_spiffs_utime(void *ctx, const char *path, const struct utimbuf *times);
#endif // CONFIG_SPIFFS_USE_MTIME
#endif // CONFIG_VFS_SUPPORT_DIR
static void vfs_spiffs_update_mtime(spiffs *fs, spiffs_file f);
static time_t vfs_spiffs_get_mtime(const spiffs_stat* s);
static esp_spiffs_t * _efs[CONFIG_SPIFFS_MAX_PARTITIONS];
static void esp_spiffs_free(esp_spiffs_t ** efs)
{
esp_spiffs_t * e = *efs;
if (*efs == NULL) {
return;
}
*efs = NULL;
if (e->fs) {
SPIFFS_unmount(e->fs);
free(e->fs);
}
vSemaphoreDelete(e->lock);
free(e->fds);
free(e->cache);
free(e->work);
free(e);
}
static esp_err_t esp_spiffs_by_label(const char* label, int * index){
int i;
esp_spiffs_t * p;
for (i = 0; i < CONFIG_SPIFFS_MAX_PARTITIONS; i++) {
p = _efs[i];
if (p) {
if (!label && !p->by_label) {
*index = i;
return ESP_OK;
}
if (label && p->by_label && strncmp(label, p->partition->label, 17) == 0) {
*index = i;
return ESP_OK;
}
}
}
return ESP_ERR_NOT_FOUND;
}
static esp_err_t esp_spiffs_get_empty(int * index){
int i;
for (i = 0; i < CONFIG_SPIFFS_MAX_PARTITIONS; i++) {
if (_efs[i] == NULL) {
*index = i;
return ESP_OK;
}
}
return ESP_ERR_NOT_FOUND;
}
static esp_err_t esp_spiffs_init(const esp_vfs_spiffs_conf_t* conf)
{
int index;
//find if such partition is already mounted
if (esp_spiffs_by_label(conf->partition_label, &index) == ESP_OK) {
return ESP_ERR_INVALID_STATE;
}
if (esp_spiffs_get_empty(&index) != ESP_OK) {
ESP_LOGE(TAG, "max mounted partitions reached");
return ESP_ERR_INVALID_STATE;
}
uint32_t flash_page_size = g_rom_flashchip.page_size;
uint32_t log_page_size = CONFIG_SPIFFS_PAGE_SIZE;
if (log_page_size % flash_page_size != 0) {
ESP_LOGE(TAG, "SPIFFS_PAGE_SIZE is not multiple of flash chip page size (%d)",
flash_page_size);
return ESP_ERR_INVALID_ARG;
}
esp_partition_subtype_t subtype = conf->partition_label ?
ESP_PARTITION_SUBTYPE_ANY : ESP_PARTITION_SUBTYPE_DATA_SPIFFS;
const esp_partition_t* partition = esp_partition_find_first(ESP_PARTITION_TYPE_DATA,
subtype, conf->partition_label);
if (!partition) {
ESP_LOGE(TAG, "spiffs partition could not be found");
return ESP_ERR_NOT_FOUND;
}
if (partition->encrypted) {
ESP_LOGE(TAG, "spiffs can not run on encrypted partition");
return ESP_ERR_INVALID_STATE;
}
esp_spiffs_t * efs = malloc(sizeof(esp_spiffs_t));
if (efs == NULL) {
ESP_LOGE(TAG, "esp_spiffs could not be malloced");
return ESP_ERR_NO_MEM;
}
memset(efs, 0, sizeof(esp_spiffs_t));
efs->cfg.hal_erase_f = spiffs_api_erase;
efs->cfg.hal_read_f = spiffs_api_read;
efs->cfg.hal_write_f = spiffs_api_write;
efs->cfg.log_block_size = g_rom_flashchip.sector_size;
efs->cfg.log_page_size = log_page_size;
efs->cfg.phys_addr = 0;
efs->cfg.phys_erase_block = g_rom_flashchip.sector_size;
efs->cfg.phys_size = partition->size;
efs->by_label = conf->partition_label != NULL;
efs->lock = xSemaphoreCreateMutex();
if (efs->lock == NULL) {
ESP_LOGE(TAG, "mutex lock could not be created");
esp_spiffs_free(&efs);
return ESP_ERR_NO_MEM;
}
efs->fds_sz = conf->max_files * sizeof(spiffs_fd);
efs->fds = malloc(efs->fds_sz);
if (efs->fds == NULL) {
ESP_LOGE(TAG, "fd buffer could not be malloced");
esp_spiffs_free(&efs);
return ESP_ERR_NO_MEM;
}
memset(efs->fds, 0, efs->fds_sz);
#if SPIFFS_CACHE
efs->cache_sz = sizeof(spiffs_cache) + conf->max_files * (sizeof(spiffs_cache_page)
+ efs->cfg.log_page_size);
efs->cache = malloc(efs->cache_sz);
if (efs->cache == NULL) {
ESP_LOGE(TAG, "cache buffer could not be malloced");
esp_spiffs_free(&efs);
return ESP_ERR_NO_MEM;
}
memset(efs->cache, 0, efs->cache_sz);
#endif
const uint32_t work_sz = efs->cfg.log_page_size * 2;
efs->work = malloc(work_sz);
if (efs->work == NULL) {
ESP_LOGE(TAG, "work buffer could not be malloced");
esp_spiffs_free(&efs);
return ESP_ERR_NO_MEM;
}
memset(efs->work, 0, work_sz);
efs->fs = malloc(sizeof(spiffs));
if (efs->fs == NULL) {
ESP_LOGE(TAG, "spiffs could not be malloced");
esp_spiffs_free(&efs);
return ESP_ERR_NO_MEM;
}
memset(efs->fs, 0, sizeof(spiffs));
efs->fs->user_data = (void *)efs;
efs->partition = partition;
s32_t res = SPIFFS_mount(efs->fs, &efs->cfg, efs->work, efs->fds, efs->fds_sz,
efs->cache, efs->cache_sz, spiffs_api_check);
if (conf->format_if_mount_failed && res != SPIFFS_OK) {
ESP_LOGW(TAG, "mount failed, %i. formatting...", SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
res = SPIFFS_format(efs->fs);
if (res != SPIFFS_OK) {
ESP_LOGE(TAG, "format failed, %i", SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
esp_spiffs_free(&efs);
return ESP_FAIL;
}
res = SPIFFS_mount(efs->fs, &efs->cfg, efs->work, efs->fds, efs->fds_sz,
efs->cache, efs->cache_sz, spiffs_api_check);
}
if (res != SPIFFS_OK) {
ESP_LOGE(TAG, "mount failed, %i", SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
esp_spiffs_free(&efs);
return ESP_FAIL;
}
_efs[index] = efs;
return ESP_OK;
}
bool esp_spiffs_mounted(const char* partition_label)
{
int index;
if (esp_spiffs_by_label(partition_label, &index) != ESP_OK) {
return false;
}
return (SPIFFS_mounted(_efs[index]->fs));
}
esp_err_t esp_spiffs_info(const char* partition_label, size_t *total_bytes, size_t *used_bytes)
{
int index;
if (esp_spiffs_by_label(partition_label, &index) != ESP_OK) {
return ESP_ERR_INVALID_STATE;
}
SPIFFS_info(_efs[index]->fs, (uint32_t *)total_bytes, (uint32_t *)used_bytes);
return ESP_OK;
}
esp_err_t esp_spiffs_format(const char* partition_label)
{
bool partition_was_mounted = false;
int index;
/* If the partition is not mounted, need to create SPIFFS structures
* and mount the partition, unmount, format, delete SPIFFS structures.
* See SPIFFS wiki for the reason why.
*/
esp_err_t err = esp_spiffs_by_label(partition_label, &index);
if (err != ESP_OK) {
esp_vfs_spiffs_conf_t conf = {
.format_if_mount_failed = true,
.partition_label = partition_label,
.max_files = 1
};
err = esp_spiffs_init(&conf);
if (err != ESP_OK) {
return err;
}
err = esp_spiffs_by_label(partition_label, &index);
assert(err == ESP_OK && "failed to get index of the partition just mounted");
} else if (SPIFFS_mounted(_efs[index]->fs)) {
partition_was_mounted = true;
}
SPIFFS_unmount(_efs[index]->fs);
s32_t res = SPIFFS_format(_efs[index]->fs);
if (res != SPIFFS_OK) {
ESP_LOGE(TAG, "format failed, %i", SPIFFS_errno(_efs[index]->fs));
SPIFFS_clearerr(_efs[index]->fs);
/* If the partition was previously mounted, but format failed, don't
* try to mount the partition back (it will probably fail). On the
* other hand, if it was not mounted, need to clean up.
*/
if (!partition_was_mounted) {
esp_spiffs_free(&_efs[index]);
}
return ESP_FAIL;
}
if (partition_was_mounted) {
res = SPIFFS_mount(_efs[index]->fs, &_efs[index]->cfg, _efs[index]->work,
_efs[index]->fds, _efs[index]->fds_sz, _efs[index]->cache,
_efs[index]->cache_sz, spiffs_api_check);
if (res != SPIFFS_OK) {
ESP_LOGE(TAG, "mount failed, %i", SPIFFS_errno(_efs[index]->fs));
SPIFFS_clearerr(_efs[index]->fs);
return ESP_FAIL;
}
} else {
esp_spiffs_free(&_efs[index]);
}
return ESP_OK;
}
esp_err_t esp_vfs_spiffs_register(const esp_vfs_spiffs_conf_t * conf)
{
assert(conf->base_path);
const esp_vfs_t vfs = {
.flags = ESP_VFS_FLAG_CONTEXT_PTR,
.write_p = &vfs_spiffs_write,
.lseek_p = &vfs_spiffs_lseek,
.read_p = &vfs_spiffs_read,
.open_p = &vfs_spiffs_open,
.close_p = &vfs_spiffs_close,
.fstat_p = &vfs_spiffs_fstat,
#ifdef CONFIG_VFS_SUPPORT_DIR
.stat_p = &vfs_spiffs_stat,
.link_p = &vfs_spiffs_link,
.unlink_p = &vfs_spiffs_unlink,
.rename_p = &vfs_spiffs_rename,
.opendir_p = &vfs_spiffs_opendir,
.closedir_p = &vfs_spiffs_closedir,
.readdir_p = &vfs_spiffs_readdir,
.readdir_r_p = &vfs_spiffs_readdir_r,
.seekdir_p = &vfs_spiffs_seekdir,
.telldir_p = &vfs_spiffs_telldir,
.mkdir_p = &vfs_spiffs_mkdir,
.rmdir_p = &vfs_spiffs_rmdir,
#ifdef CONFIG_SPIFFS_USE_MTIME
.utime_p = &vfs_spiffs_utime,
#else
.utime_p = NULL,
#endif // CONFIG_SPIFFS_USE_MTIME
#endif // CONFIG_VFS_SUPPORT_DIR
};
esp_err_t err = esp_spiffs_init(conf);
if (err != ESP_OK) {
return err;
}
int index;
if (esp_spiffs_by_label(conf->partition_label, &index) != ESP_OK) {
return ESP_ERR_INVALID_STATE;
}
strlcat(_efs[index]->base_path, conf->base_path, ESP_VFS_PATH_MAX + 1);
err = esp_vfs_register(conf->base_path, &vfs, _efs[index]);
if (err != ESP_OK) {
esp_spiffs_free(&_efs[index]);
return err;
}
return ESP_OK;
}
esp_err_t esp_vfs_spiffs_unregister(const char* partition_label)
{
int index;
if (esp_spiffs_by_label(partition_label, &index) != ESP_OK) {
return ESP_ERR_INVALID_STATE;
}
esp_err_t err = esp_vfs_unregister(_efs[index]->base_path);
if (err != ESP_OK) {
return err;
}
esp_spiffs_free(&_efs[index]);
return ESP_OK;
}
static int spiffs_res_to_errno(s32_t fr)
{
switch(fr) {
case SPIFFS_OK :
return 0;
case SPIFFS_ERR_NOT_MOUNTED :
return ENODEV;
case SPIFFS_ERR_NOT_A_FS :
return ENODEV;
case SPIFFS_ERR_FULL :
return ENOSPC;
case SPIFFS_ERR_BAD_DESCRIPTOR :
return EBADF;
case SPIFFS_ERR_MOUNTED :
return EEXIST;
case SPIFFS_ERR_FILE_EXISTS :
return EEXIST;
case SPIFFS_ERR_NOT_FOUND :
return ENOENT;
case SPIFFS_ERR_NOT_A_FILE :
return ENOENT;
case SPIFFS_ERR_DELETED :
return ENOENT;
case SPIFFS_ERR_FILE_DELETED :
return ENOENT;
case SPIFFS_ERR_NAME_TOO_LONG :
return ENAMETOOLONG;
case SPIFFS_ERR_RO_NOT_IMPL :
return EROFS;
case SPIFFS_ERR_RO_ABORTED_OPERATION :
return EROFS;
default :
return EIO;
}
return ENOTSUP;
}
static int spiffs_mode_conv(int m)
{
int res = 0;
int acc_mode = m & O_ACCMODE;
if (acc_mode == O_RDONLY) {
res |= SPIFFS_O_RDONLY;
} else if (acc_mode == O_WRONLY) {
res |= SPIFFS_O_WRONLY;
} else if (acc_mode == O_RDWR) {
res |= SPIFFS_O_RDWR;
}
if ((m & O_CREAT) && (m & O_EXCL)) {
res |= SPIFFS_O_CREAT | SPIFFS_O_EXCL;
} else if ((m & O_CREAT) && (m & O_TRUNC)) {
res |= SPIFFS_O_CREAT | SPIFFS_O_TRUNC;
}
if (m & O_APPEND) {
res |= SPIFFS_O_CREAT | SPIFFS_O_APPEND;
}
return res;
}
static int vfs_spiffs_open(void* ctx, const char * path, int flags, int mode)
{
assert(path);
esp_spiffs_t * efs = (esp_spiffs_t *)ctx;
int spiffs_flags = spiffs_mode_conv(flags);
int fd = SPIFFS_open(efs->fs, path, spiffs_flags, mode);
if (fd < 0) {
errno = spiffs_res_to_errno(SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
return -1;
}
if (!(spiffs_flags & SPIFFS_RDONLY)) {
vfs_spiffs_update_mtime(efs->fs, fd);
}
return fd;
}
static ssize_t vfs_spiffs_write(void* ctx, int fd, const void * data, size_t size)
{
esp_spiffs_t * efs = (esp_spiffs_t *)ctx;
ssize_t res = SPIFFS_write(efs->fs, fd, (void *)data, size);
if (res < 0) {
errno = spiffs_res_to_errno(SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
return -1;
}
return res;
}
static ssize_t vfs_spiffs_read(void* ctx, int fd, void * dst, size_t size)
{
esp_spiffs_t * efs = (esp_spiffs_t *)ctx;
ssize_t res = SPIFFS_read(efs->fs, fd, dst, size);
if (res < 0) {
errno = spiffs_res_to_errno(SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
return -1;
}
return res;
}
static int vfs_spiffs_close(void* ctx, int fd)
{
esp_spiffs_t * efs = (esp_spiffs_t *)ctx;
int res = SPIFFS_close(efs->fs, fd);
if (res < 0) {
errno = spiffs_res_to_errno(SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
return -1;
}
return res;
}
static off_t vfs_spiffs_lseek(void* ctx, int fd, off_t offset, int mode)
{
esp_spiffs_t * efs = (esp_spiffs_t *)ctx;
off_t res = SPIFFS_lseek(efs->fs, fd, offset, mode);
if (res < 0) {
errno = spiffs_res_to_errno(SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
return -1;
}
return res;
}
static int vfs_spiffs_fstat(void* ctx, int fd, struct stat * st)
{
assert(st);
spiffs_stat s;
esp_spiffs_t * efs = (esp_spiffs_t *)ctx;
off_t res = SPIFFS_fstat(efs->fs, fd, &s);
if (res < 0) {
errno = spiffs_res_to_errno(SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
return -1;
}
memset(st, 0, sizeof(*st));
st->st_size = s.size;
st->st_mode = S_IRWXU | S_IRWXG | S_IRWXO | S_IFREG;
st->st_mtime = vfs_spiffs_get_mtime(&s);
st->st_atime = 0;
st->st_ctime = 0;
return res;
}
#ifdef CONFIG_VFS_SUPPORT_DIR
static int vfs_spiffs_stat(void* ctx, const char * path, struct stat * st)
{
assert(path);
assert(st);
spiffs_stat s;
esp_spiffs_t * efs = (esp_spiffs_t *)ctx;
off_t res = SPIFFS_stat(efs->fs, path, &s);
if (res < 0) {
errno = spiffs_res_to_errno(SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
return -1;
}
memset(st, 0, sizeof(*st));
st->st_size = s.size;
st->st_mode = S_IRWXU | S_IRWXG | S_IRWXO;
st->st_mode |= (s.type == SPIFFS_TYPE_DIR)?S_IFDIR:S_IFREG;
st->st_mtime = vfs_spiffs_get_mtime(&s);
st->st_atime = 0;
st->st_ctime = 0;
return res;
}
static int vfs_spiffs_rename(void* ctx, const char *src, const char *dst)
{
assert(src);
assert(dst);
esp_spiffs_t * efs = (esp_spiffs_t *)ctx;
int res = SPIFFS_rename(efs->fs, src, dst);
if (res < 0) {
errno = spiffs_res_to_errno(SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
return -1;
}
return res;
}
static int vfs_spiffs_unlink(void* ctx, const char *path)
{
assert(path);
esp_spiffs_t * efs = (esp_spiffs_t *)ctx;
int res = SPIFFS_remove(efs->fs, path);
if (res < 0) {
errno = spiffs_res_to_errno(SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
return -1;
}
return res;
}
static DIR* vfs_spiffs_opendir(void* ctx, const char* name)
{
assert(name);
esp_spiffs_t * efs = (esp_spiffs_t *)ctx;
vfs_spiffs_dir_t * dir = calloc(1, sizeof(vfs_spiffs_dir_t));
if (!dir) {
errno = ENOMEM;
return NULL;
}
if (!SPIFFS_opendir(efs->fs, name, &dir->d)) {
free(dir);
errno = spiffs_res_to_errno(SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
return NULL;
}
dir->offset = 0;
strlcpy(dir->path, name, SPIFFS_OBJ_NAME_LEN);
return (DIR*) dir;
}
static int vfs_spiffs_closedir(void* ctx, DIR* pdir)
{
assert(pdir);
esp_spiffs_t * efs = (esp_spiffs_t *)ctx;
vfs_spiffs_dir_t * dir = (vfs_spiffs_dir_t *)pdir;
int res = SPIFFS_closedir(&dir->d);
free(dir);
if (res < 0) {
errno = spiffs_res_to_errno(SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
return -1;
}
return res;
}
static struct dirent* vfs_spiffs_readdir(void* ctx, DIR* pdir)
{
assert(pdir);
vfs_spiffs_dir_t * dir = (vfs_spiffs_dir_t *)pdir;
struct dirent* out_dirent;
int err = vfs_spiffs_readdir_r(ctx, pdir, &dir->e, &out_dirent);
if (err != 0) {
errno = err;
return NULL;
}
return out_dirent;
}
static int vfs_spiffs_readdir_r(void* ctx, DIR* pdir, struct dirent* entry,
struct dirent** out_dirent)
{
assert(pdir);
esp_spiffs_t * efs = (esp_spiffs_t *)ctx;
vfs_spiffs_dir_t * dir = (vfs_spiffs_dir_t *)pdir;
struct spiffs_dirent out;
size_t plen;
char * item_name;
do {
if (SPIFFS_readdir(&dir->d, &out) == 0) {
errno = spiffs_res_to_errno(SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
if (!errno) {
*out_dirent = NULL;
}
return errno;
}
item_name = (char *)out.name;
plen = strlen(dir->path);
} while ((plen > 1) && (strncasecmp(dir->path, (const char*)out.name, plen) || out.name[plen] != '/' || !out.name[plen + 1]));
if (plen > 1) {
item_name += plen + 1;
} else if (item_name[0] == '/') {
item_name++;
}
entry->d_ino = 0;
entry->d_type = out.type;
snprintf(entry->d_name, SPIFFS_OBJ_NAME_LEN, "%s", item_name);
dir->offset++;
*out_dirent = entry;
return 0;
}
static long vfs_spiffs_telldir(void* ctx, DIR* pdir)
{
assert(pdir);
vfs_spiffs_dir_t * dir = (vfs_spiffs_dir_t *)pdir;
return dir->offset;
}
static void vfs_spiffs_seekdir(void* ctx, DIR* pdir, long offset)
{
assert(pdir);
esp_spiffs_t * efs = (esp_spiffs_t *)ctx;
vfs_spiffs_dir_t * dir = (vfs_spiffs_dir_t *)pdir;
struct spiffs_dirent tmp;
if (offset < dir->offset) {
//rewind dir
SPIFFS_closedir(&dir->d);
if (!SPIFFS_opendir(efs->fs, NULL, &dir->d)) {
errno = spiffs_res_to_errno(SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
return;
}
dir->offset = 0;
}
while (dir->offset < offset) {
if (SPIFFS_readdir(&dir->d, &tmp) == 0) {
errno = spiffs_res_to_errno(SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
return;
}
size_t plen = strlen(dir->path);
if (plen > 1) {
if (strncasecmp(dir->path, (const char *)tmp.name, plen) || tmp.name[plen] != '/' || !tmp.name[plen+1]) {
continue;
}
}
dir->offset++;
}
}
static int vfs_spiffs_mkdir(void* ctx, const char* name, mode_t mode)
{
errno = ENOTSUP;
return -1;
}
static int vfs_spiffs_rmdir(void* ctx, const char* name)
{
errno = ENOTSUP;
return -1;
}
static int vfs_spiffs_link(void* ctx, const char* n1, const char* n2)
{
errno = ENOTSUP;
return -1;
}
#ifdef CONFIG_SPIFFS_USE_MTIME
static int vfs_spiffs_update_mtime_value(spiffs *fs, const char *path, spiffs_time_t t)
{
int ret = SPIFFS_OK;
spiffs_stat s;
if (CONFIG_SPIFFS_META_LENGTH > sizeof(t)) {
ret = SPIFFS_stat(fs, path, &s);
}
if (ret == SPIFFS_OK) {
memcpy(s.meta, &t, sizeof(t));
ret = SPIFFS_update_meta(fs, path, s.meta);
}
if (ret != SPIFFS_OK) {
ESP_LOGW(TAG, "Failed to update mtime (%d)", ret);
}
return ret;
}
#endif //CONFIG_SPIFFS_USE_MTIME
#ifdef CONFIG_SPIFFS_USE_MTIME
static int vfs_spiffs_utime(void *ctx, const char *path, const struct utimbuf *times)
{
assert(path);
esp_spiffs_t *efs = (esp_spiffs_t *) ctx;
spiffs_time_t t;
if (times) {
t = (spiffs_time_t)times->modtime;
} else {
// use current time
t = (spiffs_time_t)time(NULL);
}
int ret = vfs_spiffs_update_mtime_value(efs->fs, path, t);
if (ret != SPIFFS_OK) {
errno = spiffs_res_to_errno(SPIFFS_errno(efs->fs));
SPIFFS_clearerr(efs->fs);
return -1;
}
return 0;
}
#endif //CONFIG_SPIFFS_USE_MTIME
#endif // CONFIG_VFS_SUPPORT_DIR
static void vfs_spiffs_update_mtime(spiffs *fs, spiffs_file fd)
{
#ifdef CONFIG_SPIFFS_USE_MTIME
spiffs_time_t t = (spiffs_time_t)time(NULL);
spiffs_stat s;
int ret = SPIFFS_OK;
if (CONFIG_SPIFFS_META_LENGTH > sizeof(t)) {
ret = SPIFFS_fstat(fs, fd, &s);
}
if (ret == SPIFFS_OK) {
memcpy(s.meta, &t, sizeof(t));
ret = SPIFFS_fupdate_meta(fs, fd, s.meta);
}
if (ret != SPIFFS_OK) {
ESP_LOGW(TAG, "Failed to update mtime (%d)", ret);
}
#endif //CONFIG_SPIFFS_USE_MTIME
}
static time_t vfs_spiffs_get_mtime(const spiffs_stat* s)
{
#ifdef CONFIG_SPIFFS_USE_MTIME
spiffs_time_t t = 0;
memcpy(&t, s->meta, sizeof(t));
#else
time_t t = 0;
#endif
return (time_t)t;
}
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