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39 lines
1.3 KiB
39 lines
1.3 KiB
#ifndef LIGHTNING_GOSSIPD_BROADCAST_H
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#define LIGHTNING_GOSSIPD_BROADCAST_H
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#include "config.h"
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#include <ccan/intmap/intmap.h>
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#include <ccan/list/list.h>
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#include <ccan/short_types/short_types.h>
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#include <ccan/tal/tal.h>
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/* Common functionality to implement staggered broadcasts with replacement. */
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struct broadcast_state {
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u64 next_index;
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UINTMAP(struct queued_message *) broadcasts;
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size_t count;
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};
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struct broadcast_state *new_broadcast_state(tal_t *ctx);
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/* Append a queued message for broadcast. Freeing the msg will remove it. */
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u64 insert_broadcast(struct broadcast_state *bstate, const u8 *msg,
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u32 timestamp);
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/* Manually delete a broadcast: not usually needed, since destructor does it */
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void broadcast_del(struct broadcast_state *bstate, u64 index, const u8 *payload);
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/* Return the broadcast with index >= *last_index, timestamp >= min and <= max
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* and update *last_index.
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* There's no broadcast with index 0. */
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const u8 *next_broadcast(struct broadcast_state *bstate,
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u32 timestamp_min, u32 timestamp_max,
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u64 *last_index);
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/* Returns b if all OK, otherwise aborts if abortstr non-NULL, otherwise returns
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* NULL. */
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struct broadcast_state *broadcast_state_check(struct broadcast_state *b,
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const char *abortstr);
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#endif /* LIGHTNING_GOSSIPD_BROADCAST_H */
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