57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
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#pragma once
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#include "flipper.h"
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/*
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== Value composer ==
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*/
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typedef void(ValueComposerCallback)(void* ctx, void* state);
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void COPY_COMPOSE(void* ctx, void* state) {
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read_mutex((ValueMutex*)ctx, state, 0);
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}
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typedef enum {
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UiLayerBelowNotify
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UiLayerNotify,
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UiLayerAboveNotify
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} UiLayer;
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ValueComposerHandle* add_compose_layer(
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ValueComposer* composer, ValueComposerCallback cb, void* ctx, uint32_t layer
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);
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bool remove_compose_layer(ValueComposerHandle* handle);
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void request_compose(ValueComposerHandle* handle);
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// See [LED](LED-API) or [Display](Display-API) API for examples.
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/*
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== ValueManager ==
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More complicated concept is ValueManager.
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It is like ValueMutex, but user can subscribe to value updates.
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First of all you can use value and pubsub part as showing above:
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aquire/release mutex, read value, subscribe/unsubscribe pubsub.
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There are two specific methods for ValueManager: write_managed, commit_managed
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*/
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typedef struct {
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ValueMutex value;
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PubSub pubsub;
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} ValueManager;
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/*
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acquire value, changes it and send notify with current value.
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*/
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bool write_managed(ValueManager* managed, void* data, size_t len, uint32_t timeout);
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/*
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commit_managed works as `release_mutex` but send notify with current value.
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*/
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bool commit_managed(ValueManager* managed, void* value);
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