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https://github.com/IoTManagerProject/IoTManager.git
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154 lines
4.4 KiB
C++
154 lines
4.4 KiB
C++
#include "utils/FileUtils.h"
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//данная функция записывает файл из буфера страницами указанного размера
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void writeFileUint8tByFrames(const String& filename, uint8_t*& big_buf, size_t length, size_t headerLenth, size_t frameSize) {
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String path = filepath(filename);
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auto file = FileFS.open(path, "w");
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if (!file) {
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Serial.println(F("failed write file uint8tByFrames"));
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return;
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}
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size_t written{headerLenth};
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while (length > written) {
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size_t size = length - written;
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if (size > frameSize) size = frameSize;
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uint8_t* p = &big_buf[written];
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size_t res = file.write(p, size);
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if (size != res) {
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break;
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}
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written += res;
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yield();
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}
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file.close();
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}
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// void writeStrValueToJsonFile(const String& filename, String key, String value) {
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// String tmp = readFile(filename, 4096);
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// if (!jsonWriteStr_(tmp, key, value)) {
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// Serial.println(F("failed write json value to file"));
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// }
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// writeFile(filename, tmp);
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// }
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//данная функция читает из файла страницами указанного размера
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// void readFileUint8tByFrames(const String& filename, size_t frameSize) {
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// String path = filepath(filename);
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// auto file = FileFS.open(path, "r");
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// if (!file) {
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// Serial.println(F("failed read file Uint8tByFrames"));
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// return;
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// }
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// size_t length = file.size();
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// size_t read{0};
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// while (length > read) {
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// size_t size = length - read;
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// if (size > frameSize) size = frameSize;
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// uint8_t p[size];
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// size_t res = file.read(p, size);
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// //
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// if (size != res) {
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// break;
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// }
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// read += res;
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// yield();
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// }
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// file.close();
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//}
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void writeFileUint8tByByte(const String& filename, uint8_t*& payload, size_t length, size_t headerLenth) {
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String path = filepath(filename);
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auto file = FileFS.open(path, "w");
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if (!file) {
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Serial.println(F("failed write file uint8tByByte"));
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return;
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}
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size_t every = 0;
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for (size_t i = 0; i < length; i++) {
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if (i >= headerLenth) {
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every++;
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file.print((char)payload[i]);
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if (every > 256) {
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yield();
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every = 0;
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}
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}
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}
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file.close();
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}
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File seekFile(const String& filename, size_t position) {
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String path = filepath(filename);
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auto file = FileFS.open(path, "r");
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if (!file) {
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SerialPrint(F("E"), F("FS"), F("seek file error"));
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}
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file.seek(position, SeekSet);
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return file;
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}
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const String writeFile(const String& filename, const String& str) {
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String path = filepath(filename);
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auto file = FileFS.open(path, "w");
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if (!file) {
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return "failed";
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}
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file.print(str);
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file.close();
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return "sucсess";
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}
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const String readFile(const String& filename, size_t max_size) {
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String path = filepath(filename);
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auto file = FileFS.open(path, "r");
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if (!file) {
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return "failed";
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}
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size_t size = file.size();
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if (size > max_size) {
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file.close();
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return "large";
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}
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String temp = file.readString();
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file.close();
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return temp;
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}
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const String filepath(const String& filename) {
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return filename.startsWith("/") ? filename : "/" + filename;
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}
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bool cutFile(const String& src, const String& dst) {
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String srcPath = filepath(src);
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String dstPath = filepath(dst);
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SerialPrint(F("i"), F("FS"), "cut " + srcPath + " to " + dstPath);
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if (!FileFS.exists(srcPath)) {
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SerialPrint(F("E"), F("FS"), "not exist: " + srcPath);
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return false;
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}
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if (FileFS.exists(dstPath)) {
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FileFS.remove(dstPath);
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}
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auto srcFile = FileFS.open(srcPath, "r");
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auto dstFile = FileFS.open(dstPath, "w");
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uint8_t buf[512];
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while (srcFile.available()) {
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size_t len = srcFile.read(buf, 512);
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dstFile.write(buf, len);
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}
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srcFile.close();
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dstFile.close();
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FileFS.remove(srcPath);
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return true;
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}
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const String addFileLn(const String& filename, const String& str) {
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String path = filepath(filename);
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auto file = FileFS.open(path, "a");
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if (!file) {
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return "failed";
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}
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file.println(str);
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file.close();
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return "sucсess";
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} |