#ifndef XPC_MSG_H_
#define XPC_MSG_H_

#include <mango/types.h>
#include <stdbool.h>
#include <stdint.h>
#include <xpc/endpoint.h>

#define XPC_MSG_MAGIC 0x5850434D

typedef struct xpc_msg_header {
	uint32_t hdr_magic;
	uint32_t hdr_interface;
	uint16_t hdr_func;
	uint16_t hdr_status;
} xpc_msg_header_t;

typedef struct xpc_msg {
	xpc_endpoint_t msg_sender;
	xpc_msg_header_t msg_header;
	size_t msg_handles_count;

	kern_msg_handle_t msg_handles[KERN_MSG_MAX_HANDLES];
} xpc_msg_t;

extern void xpc_msg_header_init(
	xpc_msg_header_t *msg,
	unsigned long interface,
	unsigned short func);
extern bool xpc_msg_header_validate(const xpc_msg_header_t *msg);
extern kern_status_t xpc_msg_recv(kern_handle_t channel, xpc_msg_t *out);
extern kern_status_t xpc_msg_read(
	const xpc_msg_t *msg,
	size_t offset,
	void *p,
	size_t count);
extern kern_status_t xpc_msg_write(
	const xpc_msg_t *msg,
	size_t offset,
	const void *p,
	size_t count);

extern kern_status_t xpc_msg_reply(
	const xpc_msg_t *msg,
	kern_iovec_t *iov,
	size_t iov_count,
	kern_msg_handle_t *handles,
	size_t handle_count);
extern kern_status_t xpc_msg_reply_error(
	const xpc_msg_t *msg,
	unsigned short code);

#endif