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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* March 6 2023, Christian Hopps <chopps@labn.net>
*
* Copyright (c) 2023, LabN Consulting, L.L.C.
*/
#ifndef _MGMT_MSG_H
#define _MGMT_MSG_H
#include "stream.h"
#include "frrevent.h"
#define MGMT_MSG_MARKER (0x4D724B21u) /* ASCII - "MrK!"*/
struct mgmt_msg_state {
struct stream *ins;
struct stream *outs;
struct stream_fifo inq;
struct stream_fifo outq;
uint64_t nrxm; /* number of received messages */
uint64_t nrxb; /* number of received bytes */
uint64_t ntxm; /* number of sent messages */
uint64_t ntxb; /* number of sent bytes */
size_t max_read_buf; /* should replace with max time value */
size_t max_write_buf; /* should replace with max time value */
size_t max_msg_sz;
char *idtag; /* identifying tag for messages */
};
struct mgmt_msg_hdr {
uint32_t marker;
uint32_t len;
};
enum mgmt_msg_rsched {
MSR_SCHED_BOTH, /* schedule both queue and read */
MSR_SCHED_STREAM, /* schedule read */
MSR_DISCONNECT, /* disconnect and start reconnecting */
};
enum mgmt_msg_wsched {
MSW_SCHED_NONE, /* no scheduling required */
MSW_SCHED_STREAM, /* schedule writing */
MSW_SCHED_WRITES_OFF, /* toggle writes off */
MSW_DISCONNECT, /* disconnect and start reconnecting */
};
static inline uint8_t *msg_payload(struct mgmt_msg_hdr *mhdr)
{
return (uint8_t *)(mhdr + 1);
}
typedef size_t (*mgmt_msg_packf)(void *msg, void *data);
extern int mgmt_msg_connect(const char *path, size_t sendbuf, size_t recvbuf,
const char *dbgtag);
extern void mgmt_msg_destroy(struct mgmt_msg_state *ms);
extern void mgmt_msg_init(struct mgmt_msg_state *ms, size_t max_read_buf,
size_t max_write_buf, size_t max_msg_sz,
const char *idtag);
extern bool mgmt_msg_procbufs(struct mgmt_msg_state *ms,
void (*handle_msg)(void *user, uint8_t *msg,
size_t msglen),
void *user, bool debug);
extern enum mgmt_msg_rsched mgmt_msg_read(struct mgmt_msg_state *ms, int fd,
bool debug);
extern size_t mgmt_msg_reset_writes(struct mgmt_msg_state *ms);
extern int mgmt_msg_send_msg(struct mgmt_msg_state *ms, void *msg, size_t len,
size_t (*packf)(void *msg, void *buf), bool debug);
extern enum mgmt_msg_wsched mgmt_msg_write(struct mgmt_msg_state *ms, int fd,
bool debug);
#endif /* _MGMT_MSG_H */
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