mirror of https://github.com/jscrane/r65emu.git
166 lines
3.0 KiB
C++
166 lines
3.0 KiB
C++
#include <stdint.h>
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#include "hardware.h"
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#if defined(USE_SPIFFS)
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#include <SPIFFS.h>
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#elif defined(USE_LITTLEFS)
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#include <FS.h>
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#include <LittleFS.h>
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#endif
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#include "serialio.h"
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#include "filer.h"
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#include "flash_filer.h"
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#if defined(USE_SPIFFS) || defined(USE_LITTLEFS)
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static File files[MAX_FILES];
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#endif
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#if defined(USE_SPIFFS)
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static File dir;
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#elif defined(USE_LITTLEFS)
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static Dir dir;
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#endif
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bool flash_file::seek(uint32_t pos)
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{
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#if defined(USE_SPIFFS) || defined(USE_LITTLEFS)
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return files[_fd].seek(pos);
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#else
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return false;
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#endif
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}
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bool flash_file::more()
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{
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#if defined(USE_SPIFFS) || defined(USE_LITTLEFS)
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return files[_fd].available() > 0;
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#else
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return false;
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#endif
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}
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uint8_t flash_file::read() {
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#if defined(USE_SPIFFS) || defined(USE_LITTLEFS)
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return files[_fd].read();
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#else
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return 0xff;
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#endif
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}
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flash_file::operator bool() const {
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#if defined(USE_SPIFFS) || defined(USE_LITTLEFS)
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return files[_fd];
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#else
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return false;
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#endif
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}
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void flash_file::write(uint8_t b) {
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#if defined(USE_SPIFFS) || defined(USE_LITTLEFS)
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files[_fd].write(b);
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files[_fd].flush();
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#endif
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}
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bool flash_filer::start()
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{
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#if defined(USE_LITTLEFS)
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dir = LittleFS.openDir(_programs);
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#elif defined(USE_SPIFFS)
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dir = SPIFFS.open(_programs);
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if (!dir)
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return false;
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#endif
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return true;
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}
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void flash_filer::stop()
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{
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#if defined(USE_SPIFFS) || defined(USE_LITTLEFS)
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for (int i = 0; i < MAX_FILES; i++)
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files[i].close();
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#endif
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}
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const char *flash_filer::advance() {
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#if defined(USE_SPIFFS) || defined(USE_LITTLEFS)
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files[_current].close();
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#if defined(USE_LITTLEFS)
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static char buf[32];
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while (true) {
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if (dir.next()) {
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files[_current] = dir.openFile("r+");
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break;
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}
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dir = LittleFS.openDir(_programs);
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}
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strncpy(buf, dir.fileName().c_str(), sizeof(buf));
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return buf;
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#else
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bool rewound = false;
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while (true) {
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files[_current] = dir.openNextFile();
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if (files[_current]) {
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if (files[_current].isDirectory())
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files[_current].close();
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else
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break;
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} else if (!rewound) {
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dir.rewindDirectory();
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rewound = true;
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} else
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return 0;
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}
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return files[_current].name();
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#endif
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#else
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return 0;
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#endif
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}
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const char *flash_filer::rewind() {
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#if defined(USE_SPIFFS)
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dir.rewindDirectory();
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#endif
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return advance();
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}
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#if !defined(NO_CHECKPOINT)
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#if defined(USE_SPIFFS)
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static char buf[32];
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static char chkpt[] = { "CHKPOINT" };
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static int cpid = 0;
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#endif
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const char *flash_filer::checkpoint() {
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#if defined(USE_SPIFFS)
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stop();
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snprintf(buf, sizeof(buf), "%s%s.%03d", _programs, chkpt, cpid++);
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File file = SPIFFS.open(buf, FILE_WRITE);
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hardware_checkpoint(file);
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file.close();
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start();
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return buf;
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#else
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return "";
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#endif
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}
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void flash_filer::restore(const char *filename) {
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#if defined(USE_SPIFFS)
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stop();
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snprintf(buf, sizeof(buf), "%s%s", _programs, filename);
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File file = SPIFFS.open(buf, FILE_READ);
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hardware_restore(file);
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file.close();
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int n = sscanf(buf + strlen(_programs), "%[A-Z0-9].%d", chkpt, &cpid);
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cpid = (n == 1)? 0: cpid+1;
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#endif
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start();
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}
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#endif
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