mirror of
https://github.com/esp8266/Arduino.git
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129 lines
4.1 KiB
C++
129 lines
4.1 KiB
C++
/*
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spiffs_api.cpp - file system wrapper for SPIFFS
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Copyright (c) 2015 Ivan Grokhotkov. All rights reserved.
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This code was influenced by NodeMCU and Sming libraries, and first version of
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Arduino wrapper written by Hristo Gochkov.
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This file is part of the esp8266 core for Arduino environment.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "spiffs_api.h"
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using namespace fs;
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FileImplPtr SPIFFSImpl::open(const char* path, OpenMode openMode, AccessMode accessMode)
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{
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if (!isSpiffsFilenameValid(path)) {
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DEBUGV("SPIFFSImpl::open: invalid path=`%s` \r\n", path);
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return FileImplPtr();
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}
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int mode = getSpiffsMode(openMode, accessMode);
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int fd = SPIFFS_open(&_fs, path, mode, 0);
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if (fd < 0 && _fs.err_code == SPIFFS_ERR_DELETED && (openMode & OM_CREATE)) {
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DEBUGV("SPIFFSImpl::open: fd=%d path=`%s` openMode=%d accessMode=%d err=%d, trying to remove\r\n",
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fd, path, openMode, accessMode, _fs.err_code);
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auto rc = SPIFFS_remove(&_fs, path);
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if (rc != SPIFFS_OK) {
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DEBUGV("SPIFFSImpl::open: SPIFFS_ERR_DELETED, but failed to remove path=`%s` openMode=%d accessMode=%d err=%d\r\n",
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path, openMode, accessMode, _fs.err_code);
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return FileImplPtr();
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}
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fd = SPIFFS_open(&_fs, path, mode, 0);
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}
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if (fd < 0) {
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DEBUGV("SPIFFSImpl::open: fd=%d path=`%s` openMode=%d accessMode=%d err=%d\r\n",
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fd, path, openMode, accessMode, _fs.err_code);
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return FileImplPtr();
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}
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return std::make_shared<SPIFFSFileImpl>(this, fd);
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}
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bool SPIFFSImpl::exists(const char* path)
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{
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if (!isSpiffsFilenameValid(path)) {
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DEBUGV("SPIFFSImpl::exists: invalid path=`%s` \r\n", path);
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return false;
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}
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spiffs_stat stat;
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int rc = SPIFFS_stat(&_fs, path, &stat);
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return rc == SPIFFS_OK;
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}
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DirImplPtr SPIFFSImpl::openDir(const char* path)
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{
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if (strlen(path) > 0 && !isSpiffsFilenameValid(path)) {
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DEBUGV("SPIFFSImpl::openDir: invalid path=`%s` \r\n", path);
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return DirImplPtr();
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}
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spiffs_DIR dir;
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spiffs_DIR* result = SPIFFS_opendir(&_fs, path, &dir);
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if (!result) {
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DEBUGV("SPIFFSImpl::openDir: path=`%s` err=%d\r\n", path, _fs.err_code);
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return DirImplPtr();
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}
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return std::make_shared<SPIFFSDirImpl>(path, this, dir);
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}
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int getSpiffsMode(OpenMode openMode, AccessMode accessMode)
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{
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int mode = 0;
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if (openMode & OM_CREATE) {
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mode |= SPIFFS_CREAT;
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}
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if (openMode & OM_APPEND) {
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mode |= SPIFFS_APPEND;
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}
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if (openMode & OM_TRUNCATE) {
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mode |= SPIFFS_TRUNC;
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}
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if (accessMode & AM_READ) {
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mode |= SPIFFS_RDONLY;
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}
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if (accessMode & AM_WRITE) {
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mode |= SPIFFS_WRONLY;
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}
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return mode;
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}
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bool isSpiffsFilenameValid(const char* name)
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{
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if (name == nullptr) {
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return false;
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}
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auto len = strlen(name);
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return len > 0 && len < SPIFFS_OBJ_NAME_LEN;
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}
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// these symbols should be defined in the linker script for each flash layout
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#ifndef CORE_MOCK
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#ifdef ARDUINO
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#ifndef SPIFFS_MAX_OPEN_FILES
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#define SPIFFS_MAX_OPEN_FILES 5
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#endif
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#if !defined(NO_GLOBAL_INSTANCES) && !defined(NO_GLOBAL_SPIFFS)
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FS SPIFFS = FS(FSImplPtr(new SPIFFSImpl(
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SPIFFS_PHYS_ADDR,
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SPIFFS_PHYS_SIZE,
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SPIFFS_PHYS_PAGE,
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SPIFFS_PHYS_BLOCK,
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SPIFFS_MAX_OPEN_FILES)));
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#endif // ARDUINO
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#endif // !CORE_MOCK
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#endif
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