47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
#include "CrossPointState.h"
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#include <HardwareSerial.h>
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#include <SD.h>
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#include <Serialization.h>
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#include <fstream>
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constexpr uint8_t STATE_VERSION = 1;
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constexpr char STATE_FILE[] = "/sd/.crosspoint/state.bin";
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void CrossPointState::serialize(std::ostream& os) const {
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serialization::writePod(os, STATE_VERSION);
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serialization::writeString(os, openEpubPath);
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}
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CrossPointState* CrossPointState::deserialize(std::istream& is) {
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const auto state = new CrossPointState();
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uint8_t version;
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serialization::readPod(is, version);
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if (version != STATE_VERSION) {
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Serial.printf("CrossPointState: Unknown version %u\n", version);
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return state;
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}
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serialization::readString(is, state->openEpubPath);
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return state;
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}
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void CrossPointState::saveToFile() const {
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std::ofstream outputFile(STATE_FILE);
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serialize(outputFile);
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outputFile.close();
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}
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CrossPointState* CrossPointState::loadFromFile() {
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if (!SD.exists(&STATE_FILE[3])) {
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return new CrossPointState();
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}
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std::ifstream inputFile(STATE_FILE);
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CrossPointState* state = deserialize(inputFile);
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inputFile.close();
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return state;
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}
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