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155 lines
3.5 KiB
C
155 lines
3.5 KiB
C
/*
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* file_provider_linux.c
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*
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* Copyright 2014-2018 Michael Zillgith
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*
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* This file is part of libIEC61850.
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*
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* libIEC61850 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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*
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* libIEC61850 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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*
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* You should have received a copy of the GNU General Public License
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* along with libIEC61850. If not, see <http://www.gnu.org/licenses/>.
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*
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* See COPYING file for the complete license text.
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*/
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#include <string.h>
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#include <dirent.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "hal_filesystem.h"
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#include "lib_memory.h"
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struct sDirectoryHandle {
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DIR* handle;
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};
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FileHandle
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FileSystem_openFile(char* fileName, bool readWrite)
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{
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FileHandle newHandle = NULL;
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if (readWrite)
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newHandle = (FileHandle) fopen(fileName, "w");
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else
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newHandle = (FileHandle) fopen(fileName, "r");
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return newHandle;
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}
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int
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FileSystem_readFile(FileHandle handle, uint8_t* buffer, int maxSize)
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{
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return fread(buffer, 1, maxSize, (FILE*) handle);
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}
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int
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FileSystem_writeFile(FileHandle handle, uint8_t* buffer, int size)
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{
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return fwrite(buffer, 1, size, (FILE*) handle);
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}
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void
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FileSystem_closeFile(FileHandle handle)
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{
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fclose((FILE*) handle);
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}
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bool
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FileSystem_deleteFile(char* filename)
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{
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if (remove(filename) == 0)
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return true;
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else
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return false;
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}
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bool
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FileSystem_renameFile(char* oldFilename, char* newFilename)
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{
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if (rename(oldFilename, newFilename) == 0)
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return true;
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else
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return false;
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}
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bool
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FileSystem_getFileInfo(char* filename, uint32_t* fileSize, uint64_t* lastModificationTimestamp)
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{
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struct stat fileStats;
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if (stat(filename, &fileStats) == -1)
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return false;
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if (lastModificationTimestamp != NULL)
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*lastModificationTimestamp = (uint64_t) (fileStats.st_mtime) * 1000LL;
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// does not work on older systems --> *lastModificationTimestamp = (uint64_t) (fileStats.st_ctim.tv_sec) * 1000LL;
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if (fileSize != NULL)
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*fileSize = fileStats.st_size;
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return true;
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}
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DirectoryHandle
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FileSystem_openDirectory(char* directoryName)
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{
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DIR* dirHandle = opendir(directoryName);
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DirectoryHandle handle = NULL;
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if (dirHandle != NULL) {
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handle = (DirectoryHandle) GLOBAL_MALLOC(sizeof(struct sDirectoryHandle));
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handle->handle = dirHandle;
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}
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return handle;
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}
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char*
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FileSystem_readDirectory(DirectoryHandle directory, bool* isDirectory)
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{
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struct dirent* dir;
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dir = readdir(directory->handle);
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if (dir != NULL) {
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if (dir->d_name[0] == '.')
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return FileSystem_readDirectory(directory, isDirectory);
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else {
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if (isDirectory != NULL) {
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if (dir->d_type == DT_DIR)
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*isDirectory = true;
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else
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*isDirectory = false;
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}
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return dir->d_name;
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}
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}
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else
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return NULL;
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}
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void
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FileSystem_closeDirectory(DirectoryHandle directory)
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{
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closedir(directory->handle);
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GLOBAL_FREEMEM(directory);
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}
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