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libplugin-pay: incorporate gossip store. 

So we can use this for routing determinations.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2020-10-20 14:32:00 +10:30
parent 92f2461b5d
commit eadf2c91fe
4 changed files with 20 additions and 3 deletions
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3
common/gossip_constants.h
View File

@ -78,4 +78,7 @@
#define GOSSIP_TOKEN_TIME(dev_fast_gossip_flag) \
DEV_FAST_GOSSIP(dev_fast_gossip_flag, 1, 3600)
/* This is where we keep our gossip */
#define GOSSIP_STORE_FILENAME "gossip_store"
#endif /* LIGHTNING_COMMON_GOSSIP_CONSTANTS_H */

1
gossipd/gossip_store.c
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@ -24,7 +24,6 @@
#include <wire/peer_wire.h>
#include <wire/wire.h>
#define GOSSIP_STORE_FILENAME "gossip_store"
#define GOSSIP_STORE_TEMP_FILENAME "gossip_store.tmp"
struct gossip_store {

4
plugins/Makefile
View File

@ -101,7 +101,7 @@ PLUGIN_COMMON_OBJS := \
wire/tlvstream.o \
wire/towire.o
plugins/pay: bitcoin/chainparams.o $(PLUGIN_PAY_OBJS) $(PLUGIN_LIB_OBJS) $(PLUGIN_PAY_LIB_OBJS) $(PLUGIN_COMMON_OBJS) $(JSMN_OBJS) $(CCAN_OBJS)
plugins/pay: bitcoin/chainparams.o $(PLUGIN_PAY_OBJS) $(PLUGIN_LIB_OBJS) $(PLUGIN_PAY_LIB_OBJS) $(PLUGIN_COMMON_OBJS) $(JSMN_OBJS) $(CCAN_OBJS) common/gossmap.o common/route.o common/dijkstra.o
$(PLUGIN_PAY_OBJS): $(PLUGIN_PAY_LIB_HEADER)
plugins/autoclean: bitcoin/chainparams.o $(PLUGIN_AUTOCLEAN_OBJS) $(PLUGIN_LIB_OBJS) $(PLUGIN_COMMON_OBJS) $(JSMN_OBJS) $(CCAN_OBJS)
@ -110,7 +110,7 @@ plugins/txprepare: bitcoin/chainparams.o $(PLUGIN_TXPREPARE_OBJS) $(PLUGIN_LIB_O
plugins/bcli: bitcoin/chainparams.o $(PLUGIN_BCLI_OBJS) $(PLUGIN_LIB_OBJS) $(PLUGIN_COMMON_OBJS) $(JSMN_OBJS) $(CCAN_OBJS)
plugins/keysend: bitcoin/chainparams.o wire/tlvstream.o wire/onion$(EXP)_wiregen.o $(PLUGIN_KEYSEND_OBJS) $(PLUGIN_LIB_OBJS) $(PLUGIN_PAY_LIB_OBJS) $(PLUGIN_COMMON_OBJS) $(JSMN_OBJS) $(CCAN_OBJS)
plugins/keysend: bitcoin/chainparams.o wire/tlvstream.o wire/onion$(EXP)_wiregen.o $(PLUGIN_KEYSEND_OBJS) $(PLUGIN_LIB_OBJS) $(PLUGIN_PAY_LIB_OBJS) $(PLUGIN_COMMON_OBJS) $(JSMN_OBJS) $(CCAN_OBJS) common/gossmap.o common/route.o common/dijkstra.o
$(PLUGIN_KEYSEND_OBJS): $(PLUGIN_PAY_LIB_HEADER)
plugins/spenderp: bitcoin/chainparams.o $(PLUGIN_SPENDER_OBJS) $(PLUGIN_LIB_OBJS) $(PLUGIN_COMMON_OBJS) $(JSMN_OBJS) $(CCAN_OBJS)

15
plugins/libplugin-pay.c
View File

@ -1,13 +1,19 @@
#include <bitcoin/preimage.h>
#include <ccan/array_size/array_size.h>
#include <ccan/tal/str/str.h>
#include <common/dijkstra.h>
#include <common/gossmap.h>
#include <common/json_helpers.h>
#include <common/json_stream.h>
#include <common/memleak.h>
#include <common/pseudorand.h>
#include <common/random_select.h>
#include <common/type_to_string.h>
#include <errno.h>
#include <plugins/libplugin-pay.h>
static struct gossmap *gossmap;
/* BOLT #11:
* * `c` (24): `data_length` variable.
* `min_final_cltv_expiry` to use for the last HTLC in the route.
@ -23,6 +29,15 @@ struct payment *payment_new(tal_t *ctx, struct command *cmd,
static u64 next_id = 0;
/* Now we're actually creating a payment, load gossip store */
if (!gossmap) {
gossmap = notleak_with_children(gossmap_load(NULL,
GOSSIP_STORE_FILENAME));
if (!gossmap)
plugin_err(cmd->plugin, "Could not load gossmap %s: %s",
GOSSIP_STORE_FILENAME, strerror(errno));
}
p->children = tal_arr(p, struct payment *, 0);
p->parent = parent;
p->modifiers = mods;