140 lines
3.8 KiB
C
140 lines
3.8 KiB
C
#ifndef LIGHTNING_DAEMON_WATCH_H
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#define LIGHTNING_DAEMON_WATCH_H
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#include "config.h"
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#include "bitcoin/shadouble.h"
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#include <ccan/crypto/ripemd160/ripemd160.h>
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#include <ccan/htable/htable_type.h>
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#include <ccan/list/list.h>
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#include <ccan/short_types/short_types.h>
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#include <ccan/typesafe_cb/typesafe_cb.h>
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struct bitcoin_tx;
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struct lightningd_state;
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enum watch_result {
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DELETE_WATCH = -1,
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KEEP_WATCHING = -2
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};
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struct txwatch_output {
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struct sha256_double txid;
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unsigned int index;
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};
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/* Watching an output */
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struct txowatch {
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/* Peer who owns us. */
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struct peer *peer;
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/* Output to watch. */
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struct txwatch_output out;
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/* A new tx. */
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enum watch_result (*cb)(struct peer *peer,
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const struct bitcoin_tx *tx,
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size_t input_num,
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void *cbdata);
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void *cbdata;
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};
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const struct txwatch_output *txowatch_keyof(const struct txowatch *w);
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size_t txo_hash(const struct txwatch_output *out);
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bool txowatch_eq(const struct txowatch *w, const struct txwatch_output *out);
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HTABLE_DEFINE_TYPE(struct txowatch, txowatch_keyof, txo_hash, txowatch_eq,
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txowatch_hash);
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struct txwatch {
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struct lightningd_state *dstate;
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/* Peer who owns us. */
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struct peer *peer;
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/* Transaction to watch. */
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struct sha256_double txid;
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unsigned int depth;
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/* A new depth (0 if kicked out, otherwise 1 = tip, etc.) */
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enum watch_result (*cb)(struct peer *peer, unsigned int depth,
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const struct sha256_double *txid,
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void *cbdata);
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void *cbdata;
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};
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const struct sha256_double *txwatch_keyof(const struct txwatch *w);
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size_t txid_hash(const struct sha256_double *txid);
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bool txwatch_eq(const struct txwatch *w, const struct sha256_double *txid);
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HTABLE_DEFINE_TYPE(struct txwatch, txwatch_keyof, txid_hash, txwatch_eq,
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txwatch_hash);
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struct txwatch *watch_txid_(const tal_t *ctx,
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struct peer *peer,
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const struct sha256_double *txid,
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enum watch_result (*cb)(struct peer *peer,
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unsigned int depth,
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const struct sha256_double*,
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void *),
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void *cbdata);
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#define watch_txid(ctx, peer, txid, cb, cbdata) \
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watch_txid_((ctx), (peer), (txid), \
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typesafe_cb_preargs(enum watch_result, void *, \
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(cb), (cbdata), \
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struct peer *, \
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unsigned int depth, \
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const struct sha256_double *), \
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(cbdata))
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struct txwatch *watch_tx_(const tal_t *ctx,
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struct peer *peer,
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const struct bitcoin_tx *tx,
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enum watch_result (*cb)(struct peer *peer,
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unsigned int depth,
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const struct sha256_double *,
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void *),
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void *cbdata);
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#define watch_tx(ctx, peer, tx, cb, cbdata) \
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watch_tx_((ctx), (peer), (tx), \
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typesafe_cb_preargs(enum watch_result, void *, \
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(cb), (cbdata), \
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struct peer *, \
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unsigned int depth, \
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const struct sha256_double *), \
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(cbdata))
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struct txowatch *watch_txo_(const tal_t *ctx,
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struct peer *peer,
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const struct sha256_double *txid,
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unsigned int output,
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enum watch_result (*cb)(struct peer *peer,
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const struct bitcoin_tx *tx,
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size_t input_num,
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void *),
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void *cbdata);
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#define watch_txo(ctx, peer, txid, outnum, cb, cbdata) \
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watch_txo_((ctx), (peer), (txid), (outnum), \
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typesafe_cb_preargs(enum watch_result, void *, \
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(cb), (cbdata), \
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struct peer *, \
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const struct bitcoin_tx *, \
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size_t), \
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(cbdata))
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void txwatch_fire(struct lightningd_state *dstate,
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const struct sha256_double *txid,
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unsigned int depth);
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void txowatch_fire(struct lightningd_state *dstate,
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const struct txowatch *txow,
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const struct bitcoin_tx *tx, size_t input_num);
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bool watching_txid(struct lightningd_state *dstate,
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const struct sha256_double *txid);
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void watch_topology_changed(struct lightningd_state *dstate);
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#endif /* LIGHTNING_DAEMON_WATCH_H */
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