/* lib9p/tables.h - Declare tables of version and message information
 *
 * Copyright (C) 2024-2025  Luke T. Shumaker <lukeshu@lukeshu.com>
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

#ifndef _LIB9P_TABLES_H_
#define _LIB9P_TABLES_H_

#include <lib9p/9p.h>

/* version ********************************************************************/

struct _lib9p_ver_tentry {
	const char      *name;
	uint32_t         min_msg_size;
};

extern const struct _lib9p_ver_tentry _lib9p_table_ver[LIB9P_VER_NUM];

/* message ********************************************************************/

struct _lib9p_msg_tentry {
	const char      *name;
};

typedef ssize_t (*_validate_fn_t)(struct lib9p_ctx *ctx, uint32_t net_size, uint8_t *net_bytes);
typedef void (*_unmarshal_fn_t)(struct lib9p_ctx *ctx, uint8_t *net_bytes, void *out);
struct _lib9p_recv_tentry {
	_validate_fn_t           validate;
	_unmarshal_fn_t          unmarshal;
};

struct _marshal_ret {
	size_t                   net_iov_cnt;
	struct iovec            *net_iov;
	size_t                   net_copied_size;
	uint8_t                 *net_copied;
};
typedef bool (*_marshal_fn_t)(struct lib9p_ctx *ctx, void *host_val, struct _marshal_ret *ret);
struct _lib9p_send_tentry {
	_marshal_fn_t            marshal;
};

extern const struct _lib9p_msg_tentry  _lib9p_table_msg[LIB9P_VER_NUM][0x100];
extern const struct _lib9p_recv_tentry _lib9p_table_Tmsg_recv[LIB9P_VER_NUM][0x80];
extern const struct _lib9p_recv_tentry _lib9p_table_Rmsg_recv[LIB9P_VER_NUM][0x80];
extern const struct _lib9p_send_tentry _lib9p_table_Tmsg_send[LIB9P_VER_NUM][0x80];
extern const struct _lib9p_send_tentry _lib9p_table_Rmsg_send[LIB9P_VER_NUM][0x80];

/* stat ***********************************************************************/

ssize_t _lib9p_stat_validate(struct lib9p_ctx *ctx, uint32_t net_size, uint8_t *net_bytes, uint32_t *ret_net_size);
void _lib9p_stat_unmarshal(struct lib9p_ctx *ctx, uint8_t *net_bytes, void *out);
bool _lib9p_stat_marshal(struct lib9p_ctx *ctx, struct lib9p_stat *val, struct _marshal_ret *ret);

#endif /* _LIB9P_TABLES_H_ */