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96 lines
3.2 KiB
96 lines
3.2 KiB
#ifndef LIGHTNING_LIGHTNINGD_PAY_H
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#define LIGHTNING_LIGHTNINGD_PAY_H
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#include "config.h"
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#include <bitcoin/preimage.h>
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#include <bitcoin/pubkey.h>
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#include <bitcoin/short_channel_id.h>
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#include <wire/gen_onion_wire.h>
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struct htlc_out;
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struct json_result;
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struct lightningd;
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struct route_hop;
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struct sha256;
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struct wallet_payment;
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/* Routing failure object */
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struct routing_failure {
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unsigned int erring_index;
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enum onion_type failcode;
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struct pubkey erring_node;
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struct short_channel_id erring_channel;
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u8 *channel_update;
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};
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/* Result of send_payment */
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struct sendpay_result {
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/* Did the payment succeed? */
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bool succeeded;
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/* Preimage. Only loaded if payment succeeded. */
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struct preimage preimage;
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/* Error code, one of the PAY_* macro in jsonrpc_errors.h.
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* Only loaded if payment failed. */
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int errorcode;
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/* Pointer to the payment. Only loaded if payment
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* succeeded or if error is PAY_IN_PROGRESS */
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const struct wallet_payment *payment;
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/* Unparseable onion reply. Only loaded if payment failed,
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* and errorcode == PAY_UNPARSEABLE_ONION. */
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const u8* onionreply;
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/* Routing failure object. Only loaded if payment failed,
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* and errorcode == PAY_DESTINATION_PERM_FAIL or
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* errorcode == PAY_TRY_OTHER_ROUTE */
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struct routing_failure* routing_failure;
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/* Error message. Only loaded if payment failed. */
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const char *details;
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};
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/* Initiate a payment. Return true if the callback will be
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* scheduled for later, or false if the callback has already
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* been called. If the given context is freed before the
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* callback is called, then the callback will no longer be
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* called.
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*
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* This will call the callback "soon" in 10ms or less.
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*
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* Typically the callback will be called with a failed
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* sendpay_result indicating an error code of PAY_IN_PROGRESS.
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* It will only call the callback with successful sendpay_result
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* if the payment has already completed with the same amount
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* and destination before. */
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bool send_payment(const tal_t *ctx,
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struct lightningd* ld,
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const struct sha256 *rhash,
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const struct route_hop *route,
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void (*cb)(const struct sendpay_result *, void*),
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void *cbarg);
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/* Wait for a previous send_payment to complete in definite
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* success or failure. If the given context is freed before
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* the callback is called, then the callback will no longer
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* be called.
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*
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* Return true if the payment is still pending on return, or
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* false if the callback was already invoked before this
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* function returned. */
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bool wait_payment(const tal_t *ctx,
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struct lightningd* ld,
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const struct sha256 *payment_hash,
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void (*cb)(const struct sendpay_result *, void *cbarg),
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void *cbarg);
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void payment_succeeded(struct lightningd *ld, struct htlc_out *hout,
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const struct preimage *rval);
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void payment_failed(struct lightningd *ld, const struct htlc_out *hout,
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const char *localfail);
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/* Inform payment system to save the payment. */
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void payment_store(struct lightningd *ld, const struct sha256 *payment_hash);
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/* Output the fields of a payment. Caller should have put the
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* response within a JSON object and is responsible for
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* closing the object. */
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void json_add_payment_fields(struct json_result *response,
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const struct wallet_payment *t);
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#endif /* LIGHTNING_LIGHTNINGD_PAY_H */
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