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296868daf4
This is the modified-time of the file. We have to store it internally since we overwrite the gossip file with compaction on startup. This means the "are we behind on gossip?" heuristic is no longer inside gossip_store.c, which is cleaner. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
85 lines
2.2 KiB
C
85 lines
2.2 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/short_types/short_types.h>
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#include <ccan/tal/tal.h>
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#include <gossipd/routing.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 routing_state;
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struct gossip_store *gossip_store_new(struct routing_state *rstate,
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struct list_head *peers);
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/**
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* Load the initial gossip store, if any.
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*
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* @param rstate The routing state to load init.
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* @param gs The `gossip_store` to read from
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*
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* Returns the last-modified time of the store, or 0 if it was created new.
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*/
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u32 gossip_store_load(struct routing_state *rstate, struct gossip_store *gs);
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/**
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* Add a private channel_update message to the gossip_store
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*/
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u64 gossip_store_add_private_update(struct gossip_store *gs, const u8 *update);
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/**
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* Add a gossip message to the gossip_store (and optional addendum)
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*/
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u64 gossip_store_add(struct gossip_store *gs, const u8 *gossip_msg,
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u32 timestamp, const u8 *addendum);
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/**
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* Delete the broadcast associated with this (if any).
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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_delete(struct gossip_store *gs,
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struct broadcastable *bcast,
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int type);
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/**
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* Direct store accessor: loads gossip msg back from store.
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*
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* Caller must ensure offset != 0. Never returns NULL.
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*/
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const u8 *gossip_store_get(const tal_t *ctx,
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struct gossip_store *gs,
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u64 offset);
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/**
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* Direct store accessor: loads private gossip msg back from store.
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*
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* Caller must ensure offset != 0. Never returns NULL.
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*/
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const u8 *gossip_store_get_private_update(const tal_t *ctx,
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struct gossip_store *gs,
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u64 offset);
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/* Exposed for dev-compact-gossip-store to force compaction. */
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bool gossip_store_compact(struct gossip_store *gs);
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/**
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* Get a readonly fd for the gossip_store.
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* @gs: the gossip store.
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*
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* Returns -1 on failure, and sets errno.
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*/
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int gossip_store_readonly_fd(struct gossip_store *gs);
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/* Callback inside gossipd when store is compacted */
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void update_peers_broadcast_index(struct list_head *peers, u32 offset);
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#endif /* LIGHTNING_GOSSIPD_GOSSIP_STORE_H */
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