core-lightning/wire/wire_io.h
Rusty Russell df7b68eea9 wire/wire_io: support take() arg to io_write_wire().
This simplifies memory management, but means we have to keep the
original pointer.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-03-10 21:45:55 +10:30

32 lines
1.1 KiB
C

#ifndef LIGHTNING_WIRE_WIRE_IO_H
#define LIGHTNING_WIRE_WIRE_IO_H
#include "config.h"
#include <ccan/io/io.h>
#include <ccan/short_types/short_types.h>
/* 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 */