#ifndef foomainhfoo
#define foomainhfoo

#include <sys/socket.h>
#include <netinet/ip.h>

struct cfg;

#include "utils.h"

extern bool exiting;

extern unsigned debug_mask;

enum debug_category {
	DBG_ERROR	= (0x1 << 1),
	DBG_INFO	= (0x1 << 2),
	DBG_VERBOSE	= (0x1 << 3),
	DBG_CFG		= (0x1 << 4),
	DBG_REF		= (0x1 << 5),
	DBG_MALLOC	= (0x1 << 6),
	DBG_ANN		= (0x1 << 7),
	DBG_SIG		= (0x1 << 7),
	DBG_UR		= (0x1 << 8),
	DBG_SRV		= (0x1 << 9),
	DBG_PROXY	= (0x1 << 10),
	DBG_RCON	= (0x1 << 11),
	DBG_IDLE	= (0x1 << 12),
	DBG_IGMP	= (0x1 << 13),
	DBG_SYSD	= (0x1 << 14),
};

static inline bool
debug_enabled(enum debug_category category)
{
	return !!(category & debug_mask);
}

void __debug(enum debug_category category, const char *fmt, ...) __attribute__((format(printf, 2, 3)));

#define __ifdebug(c, fmt, ...) 						\
	do {								\
		if (debug_enabled((c)))					\
			__debug((c), fmt __VA_OPT__(,) __VA_ARGS__);	\
	} while (0)

#define debug(c, fmt, ...)	__ifdebug((c), "%s:%i: " fmt, __func__,		\
					  __LINE__ __VA_OPT__(,) __VA_ARGS__)
#define verbose(fmt, ...)	__ifdebug(DBG_VERBOSE, fmt, __VA_ARGS__)
#define info(fmt, ...)		__ifdebug(DBG_ERROR, fmt,  __VA_ARGS__)
#define error(fmt, ...)		__ifdebug(DBG_ERROR, "%s: " fmt,		\
					  __func__ __VA_OPT__(,) __VA_ARGS__)

void __die(const char *fmt, ...) __attribute__((format(printf, 1, 2)));

#define die(fmt, ...)		__die("%s:%i: " fmt "\n", __func__, \
				      __LINE__  __VA_OPT__(,) __VA_ARGS__)
#define perrordie(fmt, ...)	__die("%s:%i: " fmt ": %m\n", __func__, \
				      __LINE__  __VA_OPT__(,) __VA_ARGS__)

struct uring_task;

/* To save typing in all the function definitions below */
typedef void (*callback_t)(struct cfg *, struct uring_task *, int res);
typedef int (*rcallback_t)(struct cfg *, struct uring_task *, int res);

struct uring_task_buf {
	char buf[4096];
	size_t len;
	size_t done;
	struct iovec iov;
	struct msghdr msg;
};

struct uring_task {
	const char *name;
	unsigned refcount;
	int fd;
	struct uring_task *parent;
	void (*free)(struct uring_task *);
	bool dead;
	struct uring_task_buf *tbuf;
	callback_t callback;
	rcallback_t complete_callback; /* to check if tbuf processing is done */
	callback_t final_callback; /* once tbuf processing is done */
	struct sockaddr_in46 addr; /* used for recvmsg/sendmsg */
	void *priv;
};

struct cfg {
	const char *homedir;
	struct uring_ev *uev;
	struct inotify_ev *iev;
	struct signalfd_ev *sev;
	struct announce *aev;
	struct igmp *igmp;
	struct sd_bus *sd_bus;
	bool sd_bus_failed;
	struct uring_task task;
	struct list_head servers;
};

#endif