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71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
#ifndef LIGHTNING_DAEMON_ROUTING_H
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#define LIGHTNING_DAEMON_ROUTING_H
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#include "config.h"
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#include "bitcoin/pubkey.h"
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#define ROUTING_MAX_HOPS 20
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struct node_connection {
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struct node *src, *dst;
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/* millisatoshi. */
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u32 base_fee;
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/* millionths */
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s32 proportional_fee;
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/* Delay for HTLC in blocks.*/
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u32 delay;
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/* Minimum allowable HTLC expiry in blocks. */
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u32 min_blocks;
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};
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struct node {
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struct pubkey id;
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/* Routes connecting to us, from us. */
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struct node_connection **in, **out;
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/* Temporary data for routefinding. */
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struct {
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/* Total to get to here from target. */
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s64 total;
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/* Total risk premium of this route. */
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u64 risk;
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/* Where that came from. */
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struct node_connection *prev;
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} bfg[ROUTING_MAX_HOPS+1];
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};
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struct lightningd_state;
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struct node *new_node(struct lightningd_state *dstate,
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const struct pubkey *id);
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struct node *get_node(struct lightningd_state *dstate,
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const struct pubkey *id);
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/* msatoshi must be possible (< 21 million BTC), ie < 2^60.
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* If it returns more than msatoshi, it overflowed. */
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s64 connection_fee(const struct node_connection *c, u64 msatoshi);
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/* Updates existing connection, or creates new one as required. */
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struct node_connection *add_connection(struct lightningd_state *dstate,
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const struct pubkey *from,
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const struct pubkey *to,
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u32 base_fee, s32 proportional_fee,
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u32 delay, u32 min_blocks);
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void remove_connection(struct lightningd_state *dstate,
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const struct pubkey *src, const struct pubkey *dst);
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struct peer *find_route(struct lightningd_state *dstate,
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const struct pubkey *to,
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u64 msatoshi,
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double riskfactor,
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s64 *fee,
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struct node_connection ***route);
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struct node_map *empty_node_map(struct lightningd_state *dstate);
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char *opt_add_route(const char *arg, struct lightningd_state *dstate);
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#endif /* LIGHTNING_DAEMON_ROUTING_H */
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