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refactor save state to allow persisting a transient state prior to explicitly saving to a slot.

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This commit is contained in:
Adam Wonak
2025-07-04 10:19:39 -07:00
parent f7ff03d5b6
commit e664f6c17b
4 changed files with 68 additions and 63 deletions
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9
examples/Gravity/save_state.h
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@ -12,7 +12,7 @@ const char SKETCH_NAME[] = "Gravity";
const byte SKETCH_VERSION = 7;
// Number of available save slots.
const byte MAX_SAVE_SLOTS = 8;
const byte MAX_SAVE_SLOTS = 10;
// Define the minimum amount of time between EEPROM writes.
static const unsigned long SAVE_DELAY_MS = 2000;
@ -41,7 +41,6 @@ class StateManager {
// This struct holds the data that identifies the firmware version.
struct Metadata {
byte version;
byte active_slot;
char sketch_name[16];
};
struct ChannelState {
@ -68,9 +67,9 @@ class StateManager {
};
private:
bool _isDataValid();
void _save(const AppState& app);
void _saveState(const AppState& app);
void _saveMetadata(byte active_slot);
void _saveMetadata();
void _saveState(const AppState& app, byte slot_index);
void _loadState(AppState& app, byte slot_index);
bool _isDirty;
unsigned long _lastChangeTime;