160 lines
3.9 KiB
C++
160 lines
3.9 KiB
C++
#include "FS.h"
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#include "SPIFFS.h"
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void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
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Serial.printf("Listing directory: %s\n", dirname);
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File root = fs.open(dirname);
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if(!root){
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Serial.println("Failed to open directory");
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return;
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}
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if(!root.isDirectory()){
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Serial.println("Not a directory");
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return;
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}
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File file = root.openNextFile();
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while(file){
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if(file.isDirectory()){
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Serial.print(" DIR : ");
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Serial.println(file.name());
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if(levels){
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listDir(fs, file.name(), levels -1);
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}
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} else {
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Serial.print(" FILE: ");
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Serial.print(file.name());
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Serial.print(" SIZE: ");
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Serial.println(file.size());
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}
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file = root.openNextFile();
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}
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}
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void readFile(fs::FS &fs, const char * path){
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Serial.printf("Reading file: %s\n", path);
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File file = fs.open(path);
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if(!file){
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Serial.println("Failed to open file for reading");
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return;
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}
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Serial.print("Read from file: ");
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while(file.available()){
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Serial.write(file.read());
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}
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}
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void writeFile(fs::FS &fs, const char * path, const char * message){
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Serial.printf("Writing file: %s\n", path);
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File file = fs.open(path, FILE_WRITE);
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if(!file){
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Serial.println("Failed to open file for writing");
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return;
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}
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if(file.print(message)){
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Serial.println("File written");
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} else {
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Serial.println("Write failed");
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}
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}
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void appendFile(fs::FS &fs, const char * path, const char * message){
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Serial.printf("Appending to file: %s\n", path);
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File file = fs.open(path, FILE_APPEND);
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if(!file){
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Serial.println("Failed to open file for appending");
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return;
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}
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if(file.print(message)){
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Serial.println("Message appended");
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} else {
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Serial.println("Append failed");
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}
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}
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void renameFile(fs::FS &fs, const char * path1, const char * path2){
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Serial.printf("Renaming file %s to %s\n", path1, path2);
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if (fs.rename(path1, path2)) {
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Serial.println("File renamed");
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} else {
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Serial.println("Rename failed");
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}
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}
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void deleteFile(fs::FS &fs, const char * path){
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Serial.printf("Deleting file: %s\n", path);
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if(fs.remove(path)){
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Serial.println("File deleted");
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} else {
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Serial.println("Delete failed");
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}
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}
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void testFileIO(fs::FS &fs, const char * path){
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File file = fs.open(path);
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static uint8_t buf[512];
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size_t len = 0;
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uint32_t start = millis();
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uint32_t end = start;
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if(file){
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len = file.size();
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size_t flen = len;
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start = millis();
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while(len){
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size_t toRead = len;
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if(toRead > 512){
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toRead = 512;
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}
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file.read(buf, toRead);
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len -= toRead;
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}
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end = millis() - start;
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Serial.printf("%u bytes read for %u ms\n", flen, end);
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file.close();
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} else {
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Serial.println("Failed to open file for reading");
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}
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file = fs.open(path, FILE_WRITE);
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if(!file){
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Serial.println("Failed to open file for writing");
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return;
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}
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size_t i;
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start = millis();
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for(i=0; i<2048; i++){
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file.write(buf, 512);
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}
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end = millis() - start;
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Serial.printf("%u bytes written for %u ms\n", 2048 * 512, end);
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file.close();
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}
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void setup(){
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Serial.begin(115200);
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if(!SPIFFS.begin()){
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Serial.println("SPIFFS Mount Failed");
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return;
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}
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listDir(SPIFFS, "/", 0);
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writeFile(SPIFFS, "/hello.txt", "Hello ");
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appendFile(SPIFFS, "/hello.txt", "World!\n");
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readFile(SPIFFS, "/hello.txt");
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deleteFile(SPIFFS, "/foo.txt");
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renameFile(SPIFFS, "/hello.txt", "/foo.txt");
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readFile(SPIFFS, "/foo.txt");
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testFileIO(SPIFFS, "/test.txt");
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}
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void loop(){
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}
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