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gossip: Added short_channel_id_to_uint for uintmap index

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Signed-off-by: Christian Decker <decker.christian@gmail.com>
This commit is contained in:
Christian Decker 2018-01-30 20:11:27 +01:00 committed by Rusty Russell
parent 0bc2f8714d
commit d7224e2178
2 changed files with 9 additions and 0 deletions
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6
bitcoin/short_channel_id.c
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@ -32,3 +32,9 @@ bool short_channel_id_eq(const struct short_channel_id *a,
return a->blocknum == b->blocknum && a->txnum == b->txnum && return a->blocknum == b->blocknum && a->txnum == b->txnum &&
a->outnum == b->outnum; a->outnum == b->outnum;
} }
u64 short_channel_id_to_uint(const struct short_channel_id *scid)
{
return ((u64)scid->blocknum & 0xFFFFFF) << 40 |
((u64)scid->txnum & 0xFFFFFF) << 16 | (scid->outnum & 0xFFFF);
}

3
bitcoin/short_channel_id.h
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@ -25,4 +25,7 @@ bool short_channel_id_eq(const struct short_channel_id *a,
char *short_channel_id_to_str(const tal_t *ctx, const struct short_channel_id *scid); char *short_channel_id_to_str(const tal_t *ctx, const struct short_channel_id *scid);
/* Fast, platform dependent, way to convert from a short_channel_id to u64 */
u64 short_channel_id_to_uint(const struct short_channel_id *scid);
#endif /* LIGHTNING_BITCOIN_SHORT_CHANNEL_ID_H */ #endif /* LIGHTNING_BITCOIN_SHORT_CHANNEL_ID_H */