Files
lightning/wire/wire_io.h
Rusty Russell 29b83aed2a wire: restore BE endian to wire headers for internal messages.
We don't anticipate daemons across machines, but you never know.

Suggested-by: Christian Decker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-29 14:40:34 +02:00

40 lines
1.3 KiB
C

#ifndef LIGHTNING_WIRE_WIRE_IO_H
#define LIGHTNING_WIRE_WIRE_IO_H
#include "config.h"
#include <ccan/io/io.h>
#include <ccan/endian/endian.h>
#include <ccan/short_types/short_types.h>
/* We don't allow > 64M msgs: enough for 483 64k failure msgs. */
#define WIRE_LEN_LIMIT (1 << 26)
typedef be32 wire_len_t;
#define wirelen_to_cpu be32_to_cpu
#define cpu_to_wirelen cpu_to_be32
/* Read message into *data, allocating off ctx. */
struct io_plan *io_read_wire_(struct io_conn *conn,
const tal_t *ctx,
u8 **data,
struct io_plan *(*next)(struct io_conn *, void *),
void *next_arg);
#define io_read_wire(conn, ctx, data, next, arg) \
io_read_wire_((conn), (ctx), (data), \
typesafe_cb_preargs(struct io_plan *, void *, \
(next), (arg), struct io_conn *), \
(arg))
/* Write message from data (tal_count(data) gives length). data can be take() */
struct io_plan *io_write_wire_(struct io_conn *conn,
const u8 *data,
struct io_plan *(*next)(struct io_conn *, void *),
void *next_arg);
#define io_write_wire(conn, data, next, arg) \
io_write_wire_((conn), (data), \
typesafe_cb_preargs(struct io_plan *, void *, \
(next), (arg), struct io_conn *), \
(arg))
#endif /* LIGHTNING_WIRE_WIRE_IO_H */