2019-08-01 02:07:26 -03:00
|
|
|
/*
|
|
|
|
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/>.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include "AP_Filesystem.h"
|
|
|
|
|
|
|
|
static AP_Filesystem fs;
|
|
|
|
|
2020-03-11 03:48:09 -03:00
|
|
|
#if CONFIG_HAL_BOARD == HAL_BOARD_CHIBIOS
|
2020-03-29 22:53:29 -03:00
|
|
|
#if HAVE_FILESYSTEM_SUPPORT
|
2020-03-11 03:48:09 -03:00
|
|
|
#include "AP_Filesystem_FATFS.h"
|
|
|
|
static AP_Filesystem_FATFS fs_local;
|
2020-03-29 22:53:29 -03:00
|
|
|
#else
|
|
|
|
static AP_Filesystem_Backend fs_local;
|
|
|
|
int errno;
|
|
|
|
#endif // HAVE_FILESYSTEM_SUPPORT
|
|
|
|
#endif // HAL_BOARD_CHIBIOS
|
|
|
|
|
2020-03-11 03:48:09 -03:00
|
|
|
#if CONFIG_HAL_BOARD == HAL_BOARD_LINUX || CONFIG_HAL_BOARD == HAL_BOARD_SITL
|
|
|
|
#include "AP_Filesystem_posix.h"
|
|
|
|
static AP_Filesystem_Posix fs_local;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifdef HAL_HAVE_AP_ROMFS_EMBEDDED_H
|
|
|
|
#include "AP_Filesystem_ROMFS.h"
|
|
|
|
static AP_Filesystem_ROMFS fs_romfs;
|
|
|
|
#endif
|
|
|
|
|
2020-03-21 02:19:15 -03:00
|
|
|
#include "AP_Filesystem_Param.h"
|
|
|
|
static AP_Filesystem_Param fs_param;
|
|
|
|
|
2020-03-27 17:29:27 -03:00
|
|
|
#include "AP_Filesystem_Sys.h"
|
|
|
|
static AP_Filesystem_Sys fs_sys;
|
|
|
|
|
2020-03-11 03:48:09 -03:00
|
|
|
/*
|
|
|
|
mapping from filesystem prefix to backend
|
|
|
|
*/
|
|
|
|
const AP_Filesystem::Backend AP_Filesystem::backends[] = {
|
|
|
|
{ nullptr, fs_local },
|
|
|
|
#ifdef HAL_HAVE_AP_ROMFS_EMBEDDED_H
|
2020-03-20 22:13:30 -03:00
|
|
|
{ "@ROMFS/", fs_romfs },
|
2020-03-11 03:48:09 -03:00
|
|
|
#endif
|
2020-03-21 02:19:15 -03:00
|
|
|
{ "@PARAM/", fs_param },
|
2020-03-27 17:29:27 -03:00
|
|
|
{ "@SYS/", fs_sys },
|
2020-03-11 03:48:09 -03:00
|
|
|
};
|
|
|
|
|
|
|
|
#define MAX_FD_PER_BACKEND 256U
|
|
|
|
#define NUM_BACKENDS ARRAY_SIZE(backends)
|
2020-10-23 22:24:06 -03:00
|
|
|
#define LOCAL_BACKEND backends[0]
|
2020-03-11 03:48:09 -03:00
|
|
|
#define BACKEND_IDX(backend) (&(backend) - &backends[0])
|
|
|
|
|
|
|
|
/*
|
|
|
|
find backend by path
|
|
|
|
*/
|
|
|
|
const AP_Filesystem::Backend &AP_Filesystem::backend_by_path(const char *&path) const
|
|
|
|
{
|
|
|
|
for (uint8_t i=1; i<NUM_BACKENDS; i++) {
|
|
|
|
const uint8_t plen = strlen(backends[i].prefix);
|
|
|
|
if (strncmp(path, backends[i].prefix, plen) == 0) {
|
|
|
|
path += plen;
|
|
|
|
return backends[i];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// default to local filesystem
|
|
|
|
return LOCAL_BACKEND;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
return backend by file descriptor
|
|
|
|
*/
|
|
|
|
const AP_Filesystem::Backend &AP_Filesystem::backend_by_fd(int &fd) const
|
|
|
|
{
|
|
|
|
if (fd < 0 || uint32_t(fd) >= NUM_BACKENDS*MAX_FD_PER_BACKEND) {
|
|
|
|
return LOCAL_BACKEND;
|
|
|
|
}
|
|
|
|
const uint8_t idx = uint32_t(fd) / MAX_FD_PER_BACKEND;
|
|
|
|
fd -= idx * MAX_FD_PER_BACKEND;
|
|
|
|
return backends[idx];
|
|
|
|
}
|
|
|
|
|
|
|
|
int AP_Filesystem::open(const char *fname, int flags)
|
|
|
|
{
|
|
|
|
const Backend &backend = backend_by_path(fname);
|
|
|
|
int fd = backend.fs.open(fname, flags);
|
|
|
|
if (fd < 0) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
if (uint32_t(fd) >= MAX_FD_PER_BACKEND) {
|
|
|
|
backend.fs.close(fd);
|
|
|
|
errno = ERANGE;
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
// offset fd so we can recognise the backend
|
|
|
|
const uint8_t idx = (&backend - &backends[0]);
|
|
|
|
fd += idx * MAX_FD_PER_BACKEND;
|
|
|
|
return fd;
|
|
|
|
}
|
|
|
|
|
|
|
|
int AP_Filesystem::close(int fd)
|
|
|
|
{
|
|
|
|
const Backend &backend = backend_by_fd(fd);
|
|
|
|
return backend.fs.close(fd);
|
|
|
|
}
|
|
|
|
|
2020-03-29 22:53:29 -03:00
|
|
|
int32_t AP_Filesystem::read(int fd, void *buf, uint32_t count)
|
2020-03-11 03:48:09 -03:00
|
|
|
{
|
|
|
|
const Backend &backend = backend_by_fd(fd);
|
|
|
|
return backend.fs.read(fd, buf, count);
|
|
|
|
}
|
|
|
|
|
2020-03-29 22:53:29 -03:00
|
|
|
int32_t AP_Filesystem::write(int fd, const void *buf, uint32_t count)
|
2020-03-11 03:48:09 -03:00
|
|
|
{
|
|
|
|
const Backend &backend = backend_by_fd(fd);
|
|
|
|
return backend.fs.write(fd, buf, count);
|
|
|
|
}
|
|
|
|
|
|
|
|
int AP_Filesystem::fsync(int fd)
|
|
|
|
{
|
|
|
|
const Backend &backend = backend_by_fd(fd);
|
|
|
|
return backend.fs.fsync(fd);
|
|
|
|
}
|
|
|
|
|
2020-03-29 22:53:29 -03:00
|
|
|
int32_t AP_Filesystem::lseek(int fd, int32_t offset, int seek_from)
|
2020-03-11 03:48:09 -03:00
|
|
|
{
|
|
|
|
const Backend &backend = backend_by_fd(fd);
|
|
|
|
return backend.fs.lseek(fd, offset, seek_from);
|
|
|
|
}
|
|
|
|
|
|
|
|
int AP_Filesystem::stat(const char *pathname, struct stat *stbuf)
|
|
|
|
{
|
|
|
|
const Backend &backend = backend_by_path(pathname);
|
|
|
|
return backend.fs.stat(pathname, stbuf);
|
|
|
|
}
|
|
|
|
|
|
|
|
int AP_Filesystem::unlink(const char *pathname)
|
|
|
|
{
|
|
|
|
const Backend &backend = backend_by_path(pathname);
|
|
|
|
return backend.fs.unlink(pathname);
|
|
|
|
}
|
|
|
|
|
|
|
|
int AP_Filesystem::mkdir(const char *pathname)
|
|
|
|
{
|
|
|
|
const Backend &backend = backend_by_path(pathname);
|
|
|
|
return backend.fs.mkdir(pathname);
|
|
|
|
}
|
|
|
|
|
|
|
|
AP_Filesystem::DirHandle *AP_Filesystem::opendir(const char *pathname)
|
|
|
|
{
|
|
|
|
const Backend &backend = backend_by_path(pathname);
|
|
|
|
DirHandle *h = new DirHandle;
|
|
|
|
if (!h) {
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
h->dir = backend.fs.opendir(pathname);
|
|
|
|
if (h->dir == nullptr) {
|
|
|
|
delete h;
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
h->fs_index = BACKEND_IDX(backend);
|
|
|
|
return h;
|
|
|
|
}
|
|
|
|
|
|
|
|
struct dirent *AP_Filesystem::readdir(DirHandle *dirp)
|
|
|
|
{
|
|
|
|
if (!dirp) {
|
|
|
|
return nullptr;
|
|
|
|
}
|
|
|
|
const Backend &backend = backends[dirp->fs_index];
|
|
|
|
return backend.fs.readdir(dirp->dir);
|
|
|
|
}
|
|
|
|
|
|
|
|
int AP_Filesystem::closedir(DirHandle *dirp)
|
|
|
|
{
|
|
|
|
if (!dirp) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
const Backend &backend = backends[dirp->fs_index];
|
|
|
|
int ret = backend.fs.closedir(dirp->dir);
|
|
|
|
delete dirp;
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
// return free disk space in bytes
|
|
|
|
int64_t AP_Filesystem::disk_free(const char *path)
|
|
|
|
{
|
|
|
|
const Backend &backend = backend_by_path(path);
|
|
|
|
return backend.fs.disk_free(path);
|
|
|
|
}
|
|
|
|
|
|
|
|
// return total disk space in bytes
|
|
|
|
int64_t AP_Filesystem::disk_space(const char *path)
|
|
|
|
{
|
|
|
|
const Backend &backend = backend_by_path(path);
|
|
|
|
return backend.fs.disk_space(path);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
set mtime on a file
|
|
|
|
*/
|
2020-03-29 22:53:29 -03:00
|
|
|
bool AP_Filesystem::set_mtime(const char *filename, const uint32_t mtime_sec)
|
2020-03-11 03:48:09 -03:00
|
|
|
{
|
|
|
|
const Backend &backend = backend_by_path(filename);
|
|
|
|
return backend.fs.set_mtime(filename, mtime_sec);
|
|
|
|
}
|
|
|
|
|
2020-10-23 22:24:06 -03:00
|
|
|
// if filesystem is not running then try a remount
|
|
|
|
bool AP_Filesystem::retry_mount(void)
|
|
|
|
{
|
|
|
|
return LOCAL_BACKEND.fs.retry_mount();
|
|
|
|
}
|
|
|
|
|
|
|
|
// unmount filesystem for reboot
|
|
|
|
void AP_Filesystem::unmount(void)
|
|
|
|
{
|
|
|
|
return LOCAL_BACKEND.fs.unmount();
|
|
|
|
}
|
|
|
|
|
2019-08-01 02:07:26 -03:00
|
|
|
namespace AP
|
|
|
|
{
|
|
|
|
AP_Filesystem &FS()
|
|
|
|
{
|
|
|
|
return fs;
|
|
|
|
}
|
|
|
|
}
|
2020-03-29 22:53:29 -03:00
|
|
|
|