You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
84 lines
2.5 KiB
84 lines
2.5 KiB
#ifndef LIGHTNING_COMMON_DAEMON_CONN_H
|
|
#define LIGHTNING_COMMON_DAEMON_CONN_H
|
|
|
|
#include "config.h"
|
|
#include <ccan/io/io.h>
|
|
#include <ccan/short_types/short_types.h>
|
|
#include <common/msg_queue.h>
|
|
|
|
struct daemon_conn {
|
|
/* Context to tallocate all things from, possibly the
|
|
* container of this connection. */
|
|
tal_t *ctx;
|
|
|
|
/* Last message we received */
|
|
u8 *msg_in;
|
|
|
|
/* Queue of outgoing messages */
|
|
struct msg_queue out;
|
|
|
|
/* Underlying connection */
|
|
struct io_conn *conn;
|
|
|
|
/* Callback for incoming messages */
|
|
struct io_plan *(*daemon_conn_recv)(struct io_conn *conn,
|
|
struct daemon_conn *);
|
|
|
|
/* Called whenever we've cleared the msg_out queue. If it returns
|
|
* true, it has added packets to msg_out queue. */
|
|
bool (*msg_queue_cleared_cb)(struct io_conn *, struct daemon_conn *);
|
|
};
|
|
|
|
/**
|
|
* daemon_conn_init - Initialize a new daemon connection
|
|
*
|
|
* @ctx: context to allocate from
|
|
* @dc: daemon_conn to initialize
|
|
* @fd: socket file descriptor to wrap
|
|
* @daemon_conn_recv: callback function to be called upon receiving a message
|
|
* @finish: finish function if connection is closed (can be NULL)
|
|
*/
|
|
void daemon_conn_init(tal_t *ctx, struct daemon_conn *dc, int fd,
|
|
struct io_plan *(*daemon_conn_recv)(
|
|
struct io_conn *, struct daemon_conn *),
|
|
void (*finish)(struct io_conn *, struct daemon_conn *));
|
|
|
|
/**
|
|
* daemon_conn_clear - discard a daemon conn without triggering finish.
|
|
* @dc: the daemon_conn to clean up.
|
|
*
|
|
* This is used by gossipd when a peer is handed back, and we no longer
|
|
* want to deal with it via daemon_conn. @dc must not be used after this!
|
|
*/
|
|
void daemon_conn_clear(struct daemon_conn *dc);
|
|
|
|
/**
|
|
* daemon_conn_send - Enqueue an outgoing message to be sent
|
|
*/
|
|
void daemon_conn_send(struct daemon_conn *dc, const u8 *msg);
|
|
|
|
/**
|
|
* daemon_conn_send_fd - Enqueue a file descriptor to be sent (closed after)
|
|
*/
|
|
void daemon_conn_send_fd(struct daemon_conn *dc, int fd);
|
|
|
|
/**
|
|
* daemon_conn_write_next - Continue writing from the msg-queue
|
|
*
|
|
* Exposed here so that, if `msg_queue_cleared_cb` is used to break
|
|
* out of the write-loop, we can get back in.
|
|
*/
|
|
struct io_plan *daemon_conn_write_next(struct io_conn *conn,
|
|
struct daemon_conn *dc);
|
|
|
|
/**
|
|
* daemon_conn_read_next - Read the next message
|
|
*/
|
|
struct io_plan *daemon_conn_read_next(struct io_conn *conn,
|
|
struct daemon_conn *dc);
|
|
|
|
/**
|
|
* daemon_conn_sync_flush - Flush connection by sending all messages now..
|
|
*/
|
|
bool daemon_conn_sync_flush(struct daemon_conn *dc);
|
|
#endif /* LIGHTNING_COMMON_DAEMON_CONN_H */
|
|
|