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gossmap: add functions to map index back to node/chan.

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Useful if you want to store per-chan or per-node side-data in an array.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Rusty Russell
2022-09-18 09:52:50 +09:30
parent 6a48ed9e82
commit 016e332304
2 changed files with 20 additions and 0 deletions
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3
common/gossmap.h
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@@ -90,6 +90,9 @@ void gossmap_remove_localmods(struct gossmap *map,
u32 gossmap_node_idx(const struct gossmap *map, const struct gossmap_node *node);
u32 gossmap_chan_idx(const struct gossmap *map, const struct gossmap_chan *chan);
struct gossmap_node *gossmap_node_byidx(const struct gossmap *map, u32 idx);
struct gossmap_chan *gossmap_chan_byidx(const struct gossmap *map, u32 idx);
/* Every node_idx/chan_idx will be < these.
* These values can change across calls to gossmap_check. */
u32 gossmap_max_node_idx(const struct gossmap *map);