mirror of
https://github.com/ElementsProject/lightning.git
synced 2024-11-20 02:27:51 +01:00
3e2dea221b
This way there's no need for a context pointer, and freeing a msg_queue frees its contents, as expected. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
34 lines
1.0 KiB
C
34 lines
1.0 KiB
C
/* Helper for simple message queues. */
|
|
#ifndef LIGHTNING_COMMON_MSG_QUEUE_H
|
|
#define LIGHTNING_COMMON_MSG_QUEUE_H
|
|
#include "config.h"
|
|
#include <ccan/io/io.h>
|
|
#include <ccan/short_types/short_types.h>
|
|
#include <ccan/take/take.h>
|
|
|
|
/* Reserved type used to indicate we're actually passing an fd. */
|
|
#define MSG_PASS_FD 0xFFFF
|
|
|
|
/* Allocate a new msg queue. */
|
|
struct msg_queue *msg_queue_new(const tal_t *ctx);
|
|
|
|
/* If add is taken(), freed after sending. msg_wake() implied. */
|
|
void msg_enqueue(struct msg_queue *q, const u8 *add TAKES);
|
|
|
|
/* Fd is closed after sending. msg_wake() implied. */
|
|
void msg_enqueue_fd(struct msg_queue *q, int fd);
|
|
|
|
/* Explicitly wake up a msg_queue_wait */
|
|
void msg_wake(const struct msg_queue *q);
|
|
|
|
/* Returns NULL if nothing to do. */
|
|
const u8 *msg_dequeue(struct msg_queue *q);
|
|
|
|
/* Returns -1 if not an fd: close after sending. */
|
|
int msg_extract_fd(const u8 *msg);
|
|
|
|
#define msg_queue_wait(conn, q, next, arg) \
|
|
io_out_wait((conn), (q), (next), (arg))
|
|
|
|
#endif /* LIGHTNING_COMMON_MSG_QUEUE_H */
|