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744116e501
We only write these in two places: one where we get a message from lightningd about our own channel, and one where we get a reply from lightningd about a txout check. The former case we explicitly check that we don't already have it in gossmap, so add checks to the latter case, and give verbose detail if it's found. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
121 lines
3.0 KiB
C
121 lines
3.0 KiB
C
#ifndef LIGHTNING_GOSSIPD_GOSSIP_STORE_H
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#define LIGHTNING_GOSSIPD_GOSSIP_STORE_H
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#include "config.h"
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#include <bitcoin/short_channel_id.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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/**
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* gossip_store -- On-disk storage related information
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*/
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struct gossip_store;
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struct daemon;
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/* For channels we find dying in the store, on load. They are < 12
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* blocks closed. */
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struct chan_dying {
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struct short_channel_id scid;
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/* Offset of dying marker in the gossip_store */
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u64 gossmap_offset;
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/* Blockheight where it's supposed to be deleted. */
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u32 deadline;
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};
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/**
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* Load the gossip_store
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* @ctx: the context to allocate from
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* @daemon: the daemon context
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* @populated: set to false if store is empty/obviously partial.
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* @dying: an array of channels we found dying markers for.
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*/
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struct gossip_store *gossip_store_new(const tal_t *ctx,
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struct daemon *daemon,
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bool *populated,
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struct chan_dying **dying);
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/**
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* Get the fd from the gossip_store.
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* @gs: the gossip_store.
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*
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* Used by gossmap_manage to create a gossmap.
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*/
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int gossip_store_get_fd(const struct gossip_store *gs);
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/**
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* Get the (refreshed!) gossmap from the gossip_store.
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* @gs: gossip store
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*/
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struct gossmap *gossip_store_gossmap(struct gossip_store *gs);
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/**
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* Append a gossip message to the gossip_store
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* @gs: gossip store
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* @gossip_msg: the gossip message to insert.
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* @timestamp: the timestamp for filtering of this messsage.
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*/
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u64 gossip_store_add(struct gossip_store *gs,
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const u8 *gossip_msg,
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u32 timestamp);
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/**
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* Delete the record at this offset (offset is that of
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* record, not header, unlike bcast->index!).
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*
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* In developer mode, checks that type is correct.
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*/
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void gossip_store_del(struct gossip_store *gs,
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u64 offset,
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int type);
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/**
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* Add a flag the record at this offset (offset is that of
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* record!). Returns offset of *next* record.
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*
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* In developer mode, checks that type is correct.
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*/
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u64 gossip_store_set_flag(struct gossip_store *gs,
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u64 offset, u16 flag, int type);
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/**
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* Clear a flag the record at this offset (offset is that of
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* record!). OK if it's not currently set.
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*
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* In developer mode, checks that type is correct.
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*/
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void gossip_store_clear_flag(struct gossip_store *gs,
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u64 offset, u16 flag, int type);
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/**
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* Get flags from the record at this offset (offset is that of
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* record!).
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*
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* In developer mode, checks that type is correct.
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*/
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u16 gossip_store_get_flags(struct gossip_store *gs,
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u64 offset, int type);
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/**
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* Direct store accessor: get timestamp header for a record.
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*
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* Offset is *after* the header.
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*/
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u32 gossip_store_get_timestamp(struct gossip_store *gs, u64 offset);
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/**
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* Direct store accessor: set timestamp header for a record.
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*
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* Offset is *after* the header.
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*/
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void gossip_store_set_timestamp(struct gossip_store *gs, u64 offset, u32 timestamp);
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/**
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* For debugging.
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*/
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u64 gossip_store_len_written(const struct gossip_store *gs);
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#endif /* LIGHTNING_GOSSIPD_GOSSIP_STORE_H */
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