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GitHub Repository: Ardupilot/ardupilot
 Path: blob/master/libraries/AP_Filesystem/AP_Filesystem_posix.h
Views: 1798
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/*

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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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#pragma once

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#include "AP_Filesystem_config.h"

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#if AP_FILESYSTEM_POSIX_ENABLED

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#include <sys/types.h>

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#include <sys/stat.h>

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#include <fcntl.h>

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#include <stddef.h>

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#include <stdio.h>

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#include <dirent.h>

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#include <unistd.h>

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#include <errno.h>

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#include "AP_Filesystem_backend.h"

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#ifndef AP_FILESYSTEM_POSIX_HAVE_UTIME

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#define AP_FILESYSTEM_POSIX_HAVE_UTIME 1

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#endif

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#ifndef AP_FILESYSTEM_POSIX_HAVE_FSYNC

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#define AP_FILESYSTEM_POSIX_HAVE_FSYNC 1

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#endif

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#ifndef AP_FILESYSTEM_POSIX_HAVE_STATFS

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#define AP_FILESYSTEM_POSIX_HAVE_STATFS 1

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#endif

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#ifndef O_CLOEXEC

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#define O_CLOEXEC 0

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#endif

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class AP_Filesystem_Posix : public AP_Filesystem_Backend

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{

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public:

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    // functions that closely match the equivalent posix calls

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    int open(const char *fname, int flags, bool allow_absolute_paths = false) override;

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    int close(int fd) override;

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    int32_t read(int fd, void *buf, uint32_t count) override;

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    int32_t write(int fd, const void *buf, uint32_t count) override;

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    int fsync(int fd) override;

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    int32_t lseek(int fd, int32_t offset, int whence) override;

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    int stat(const char *pathname, struct stat *stbuf) override;

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    int unlink(const char *pathname) override;

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    int mkdir(const char *pathname) override;

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    void *opendir(const char *pathname) override;

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    struct dirent *readdir(void *dirp) override;

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    int closedir(void *dirp) override;

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    int rename(const char *oldpath, const char *newpath) override;

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    // return free disk space in bytes, -1 on error

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    int64_t disk_free(const char *path) override;

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    // return total disk space in bytes, -1 on error

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    int64_t disk_space(const char *path) override;

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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) override;

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};

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#endif  // AP_FILESYSTEM_POSIX_ENABLED

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