87 lines
1.8 KiB
C
87 lines
1.8 KiB
C
#ifndef LIGHTNING_STATE_H
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#define LIGHTNING_STATE_H
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#include "config.h"
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#include <ccan/tal/tal.h>
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#include <state_types.h>
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#include <stdbool.h>
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/*
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* This is the core state machine.
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*
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* Calling the state machine updates updates peer->state, and may call
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* various peer_ callbacks. It also returns the status of the current
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* command.
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*/
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static inline bool state_is_error(enum state s)
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{
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return s >= STATE_ERR_BREAKDOWN && s <= STATE_ERR_INTERNAL;
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}
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static inline bool state_is_shutdown(enum state s)
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{
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return s == STATE_SHUTDOWN || s == STATE_SHUTDOWN_COMMITTING;
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}
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static inline bool state_is_onchain(enum state s)
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{
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return s >= STATE_CLOSE_ONCHAIN_CHEATED
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&& s <= STATE_CLOSE_ONCHAIN_MUTUAL;
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}
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static inline bool state_is_normal(enum state s)
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{
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return s == STATE_NORMAL || s == STATE_NORMAL_COMMITTING;
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}
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static inline bool state_is_waiting_for_anchor(enum state s)
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{
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return s == STATE_OPEN_WAIT_ANCHORDEPTH_AND_THEIRCOMPLETE
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|| s == STATE_OPEN_WAIT_ANCHORDEPTH;
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}
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static inline bool state_is_openwait(enum state s)
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{
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return s == STATE_OPEN_WAIT_ANCHORDEPTH_AND_THEIRCOMPLETE
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|| s == STATE_OPEN_WAIT_ANCHORDEPTH
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|| s == STATE_OPEN_WAIT_THEIRCOMPLETE;
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}
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static inline bool state_is_opening(enum state s)
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{
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return s <= STATE_OPEN_WAIT_THEIRCOMPLETE;
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}
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static inline bool state_can_io(enum state s)
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{
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if (state_is_error(s))
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return false;
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if (s == STATE_CLOSED)
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return false;
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if (state_is_onchain(s))
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return false;
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return true;
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}
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static inline bool state_can_commit(enum state s)
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{
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return s == STATE_NORMAL || s == STATE_SHUTDOWN;
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}
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/* BOLT #2:
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*
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* A node MUST NOT send a `update_add_htlc` after a `close_shutdown`
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*/
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static inline bool state_can_add_htlc(enum state s)
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{
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return state_is_normal(s);
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}
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static inline bool state_can_remove_htlc(enum state s)
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{
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return state_is_normal(s) || state_is_shutdown(s);
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}
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#endif /* LIGHTNING_STATE_H */
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