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95c5fda79f
Now we've checked it gives the same answers, we can remove a lot of work in flow.c. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
#ifndef LIGHTNING_PLUGINS_ASKRENE_FLOW_H
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#define LIGHTNING_PLUGINS_ASKRENE_FLOW_H
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#include "config.h"
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#include <bitcoin/short_channel_id.h>
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#include <common/amount.h>
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#include <common/gossmap.h>
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struct plugin;
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struct route_query;
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/* An actual partial flow. */
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struct flow {
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const struct gossmap_chan **path;
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/* The directions to traverse. */
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int *dirs;
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/* Amount delivered */
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struct amount_msat delivers;
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};
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/* Helper to access the half chan at flow index idx */
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const struct half_chan *flow_edge(const struct flow *flow, size_t idx);
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/* A big number, meaning "don't bother" (not infinite, since you may add) */
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#define FLOW_INF_COST 100000000.0
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/* Cost function to send @f msat through @c in direction @dir,
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* given we already have a flow of prev_flow. */
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double flow_edge_cost(const struct gossmap *gossmap,
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const struct gossmap_chan *c, int dir,
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const struct amount_msat known_min,
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const struct amount_msat known_max,
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struct amount_msat prev_flow,
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struct amount_msat f,
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double mu,
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double basefee_penalty,
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double delay_riskfactor);
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/* What's the success probability of this flow in isolation? */
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double flow_probability(const struct flow *flow,
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const struct route_query *rq);
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/* How much do we need to send to make this flow arrive. */
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struct amount_msat flow_spend(struct plugin *plugin, const struct flow *flow);
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/* How much do we pay in fees to make this flow arrive. */
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struct amount_msat flow_fee(struct plugin *plugin, const struct flow *flow);
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/* What fee to we pay for this entire flow set? */
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struct amount_msat flowset_fee(struct plugin *plugin, struct flow **flows);
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/* How much does this entire flowset deliver? */
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struct amount_msat flowset_delivers(struct plugin *plugin,
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struct flow **flows);
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/* How much CLTV does this flow require? */
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u64 flow_delay(const struct flow *flow);
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/* Max CLTV any of these flows requires */
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u64 flows_worst_delay(struct flow **flows);
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const char *fmt_flows_step_scid(const tal_t *ctx,
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const struct route_query *rq,
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const struct flow *flow, size_t i);
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#endif /* LIGHTNING_PLUGINS_ASKRENE_FLOW_H */
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