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libraries/AP_Filesystem/AP_Filesystem_Sys.h
56 строк
2 KB
Peter Barker
AP_FileSystem: add AP_FILESYSTEM_*_ENABLED
15 сен 2022, 03:53
15 сен 2022, 03:53
b5165b6
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/* 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/>. */ #pragma once #include "AP_Filesystem_backend.h" #include "AP_Filesystem_config.h" #if AP_FILESYSTEM_SYS_ENABLED class ExpandingString; class AP_Filesystem_Sys : public AP_Filesystem_Backend { public: // functions that closely match the equivalent posix calls int open(const char *fname, int flags, bool allow_absolute_paths = false) override; int close(int fd) override; int32_t read(int fd, void *buf, uint32_t count) override; int32_t lseek(int fd, int32_t offset, int whence) override; int stat(const char *pathname, struct stat *stbuf) override; void *opendir(const char *pathname) override; struct dirent *readdir(void *dirp) override; int closedir(void *dirp) override; private: // only allow up to 4 files at a time static constexpr uint8_t max_open_file = 4; int8_t file_in_sysfs(const char *fname); struct DirReadTracker { size_t file_offset; struct dirent curr_file; }; struct rfile { bool open; uint32_t file_ofs; ExpandingString *str; } file[max_open_file]; }; #endif // AP_FILESYSTEM_SYS_ENABLED