core-lightning/common/peer_failed.h
Rusty Russell 09cce4a9c7 common/read_peer_msg: deconstruct into individual helper routines.
The One Big API is confusing, and has enough corner cases that we should
ditch it rather than add more.

See: https://www.sandimetz.com/blog/2016/1/20/the-wrong-abstraction

In particular, when openingd is changed to chat to peers even when
it's not actively opening a channel, it wants to handle (most) errors
by continuing, not calling peer_failed().

This exposes the constituent parts.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-08-05 02:03:58 +00:00

35 lines
1.0 KiB
C

#ifndef LIGHTNING_COMMON_PEER_FAILED_H
#define LIGHTNING_COMMON_PEER_FAILED_H
#include "config.h"
#include <ccan/compiler/compiler.h>
#include <ccan/short_types/short_types.h>
struct channel_id;
/**
* peer_failed - Exit with error for peer.
* @cs: the peer's current crypto state.
* @channel_id: channel with error, or NULL for all.
* @fmt...: format as per status_failed(STATUS_FAIL_PEER_BAD)
*/
#define peer_failed(cs, channel_id, ...) \
peer_failed_(PEER_FD, GOSSIP_FD, (cs), (channel_id), __VA_ARGS__)
void peer_failed_(int peer_fd, int gossip_fd,
struct crypto_state *cs,
const struct channel_id *channel_id,
const char *fmt, ...)
PRINTF_FMT(5,6) NORETURN;
/* We're failing because peer sent us an error message: NULL
* channel_id means all channels. */
void peer_failed_received_errmsg(int peer_fd, int gossip_fd,
struct crypto_state *cs,
const char *desc,
const struct channel_id *channel_id) NORETURN;
/* I/O error */
void peer_failed_connection_lost(void) NORETURN;
#endif /* LIGHTNING_COMMON_PEER_FAILED_H */