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107 lines
2.8 KiB
107 lines
2.8 KiB
/* |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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/* |
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ArduPilot filesystem interface. This offsets a minimal subset of |
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full functionality offered by posix type interfaces, meeting the |
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needs of ArduPilot |
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*/ |
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#pragma once |
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#include <stdint.h> |
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#include <AP_HAL/AP_HAL_Boards.h> |
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#include "AP_Filesystem_Available.h" |
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#if CONFIG_HAL_BOARD == HAL_BOARD_CHIBIOS |
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#if HAVE_FILESYSTEM_SUPPORT |
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#include "AP_Filesystem_FATFS.h" |
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#endif |
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#define DT_REG 0 |
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#define DT_DIR 1 |
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#if defined(FF_MAX_LFN) && FF_USE_LFN != 0 |
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#define MAX_NAME_LEN FF_MAX_LFN |
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#else |
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#define MAX_NAME_LEN 13 |
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#endif |
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struct dirent { |
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char d_name[MAX_NAME_LEN]; /* filename */ |
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uint8_t d_type; |
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}; |
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#include <fcntl.h> |
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#include <errno.h> |
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#include <unistd.h> |
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#endif // HAL_BOARD_CHIBIOS |
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#if CONFIG_HAL_BOARD == HAL_BOARD_LINUX || CONFIG_HAL_BOARD == HAL_BOARD_SITL |
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#include "AP_Filesystem_posix.h" |
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#endif |
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#include "AP_Filesystem_backend.h" |
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class AP_Filesystem { |
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private: |
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struct DirHandle { |
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uint8_t fs_index; |
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void *dir; |
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}; |
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public: |
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AP_Filesystem() {} |
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// functions that closely match the equivalent posix calls |
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int open(const char *fname, int flags); |
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int close(int fd); |
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int32_t read(int fd, void *buf, uint32_t count); |
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int32_t write(int fd, const void *buf, uint32_t count); |
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int fsync(int fd); |
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int32_t lseek(int fd, int32_t offset, int whence); |
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int stat(const char *pathname, struct stat *stbuf); |
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int unlink(const char *pathname); |
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int mkdir(const char *pathname); |
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DirHandle *opendir(const char *pathname); |
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struct dirent *readdir(DirHandle *dirp); |
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int closedir(DirHandle *dirp); |
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// return free disk space in bytes, -1 on error |
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int64_t disk_free(const char *path); |
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// return total disk space in bytes, -1 on error |
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int64_t disk_space(const char *path); |
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// set modification time on a file |
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bool set_mtime(const char *filename, const uint32_t mtime_sec); |
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private: |
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struct Backend { |
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const char *prefix; |
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AP_Filesystem_Backend &fs; |
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}; |
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static const struct Backend backends[]; |
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/* |
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find backend by path |
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*/ |
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const Backend &backend_by_path(const char *&path) const; |
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/* |
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find backend by open fd |
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*/ |
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const Backend &backend_by_fd(int &fd) const; |
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}; |
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namespace AP { |
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AP_Filesystem &FS(); |
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}; |
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