mirror of https://github.com/ArduPilot/ardupilot
134 lines
3.0 KiB
C++
134 lines
3.0 KiB
C++
/*
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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 for posix systems
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*/
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#include "AP_Filesystem.h"
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#include <AP_HAL/AP_HAL.h>
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#if CONFIG_HAL_BOARD == HAL_BOARD_SITL || CONFIG_HAL_BOARD == HAL_BOARD_LINUX
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#if defined(__APPLE__)
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#include <sys/mount.h>
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#else
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#include <sys/vfs.h>
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#endif
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#include <utime.h>
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extern const AP_HAL::HAL& hal;
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int AP_Filesystem::open(const char *fname, int flags)
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{
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// we automatically add O_CLOEXEC as we always want it for ArduPilot FS usage
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return ::open(fname, flags | O_CLOEXEC, 0644);
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}
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int AP_Filesystem::close(int fd)
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{
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return ::close(fd);
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}
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ssize_t AP_Filesystem::read(int fd, void *buf, size_t count)
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{
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return ::read(fd, buf, count);
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}
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ssize_t AP_Filesystem::write(int fd, const void *buf, size_t count)
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{
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return ::write(fd, buf, count);
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}
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int AP_Filesystem::fsync(int fd)
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{
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return ::fsync(fd);
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}
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off_t AP_Filesystem::lseek(int fd, off_t offset, int seek_from)
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{
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return ::lseek(fd, offset, seek_from);
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}
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int AP_Filesystem::stat(const char *pathname, struct stat *stbuf)
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{
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return ::stat(pathname, stbuf);
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}
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int AP_Filesystem::unlink(const char *pathname)
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{
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// we match the FATFS interface and use unlink
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// for both files and directories
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int ret = ::rmdir(pathname);
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if (ret == -1) {
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ret = ::unlink(pathname);
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}
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return ret;
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}
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int AP_Filesystem::mkdir(const char *pathname)
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{
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return ::mkdir(pathname, 0775);
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}
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DIR *AP_Filesystem::opendir(const char *pathname)
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{
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return ::opendir(pathname);
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}
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struct dirent *AP_Filesystem::readdir(DIR *dirp)
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{
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return ::readdir(dirp);
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}
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int AP_Filesystem::closedir(DIR *dirp)
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{
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return ::closedir(dirp);
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}
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// return free disk space in bytes
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int64_t AP_Filesystem::disk_free(const char *path)
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{
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struct statfs stats;
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if (::statfs(path, &stats) < 0) {
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return -1;
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}
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return (((int64_t)stats.f_bavail) * stats.f_bsize);
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}
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// return total disk space in bytes
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int64_t AP_Filesystem::disk_space(const char *path)
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{
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struct statfs stats;
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if (::statfs(path, &stats) < 0) {
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return -1;
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}
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return (((int64_t)stats.f_blocks) * stats.f_bsize);
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}
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/*
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set mtime on a file
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*/
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bool AP_Filesystem::set_mtime(const char *filename, const time_t mtime_sec)
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{
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struct utimbuf times {};
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times.actime = mtime_sec;
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times.modtime = mtime_sec;
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return utime(filename, ×) == 0;
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}
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#endif // CONFIG_HAL_BOARD
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