magenta/libmango/include-user/mango/msg.h

#ifndef MANGO_MSG_H_
#define MANGO_MSG_H_

#include <mango/status.h>
#include <mango/types.h>

extern kern_status_t channel_create(unsigned int id, kern_handle_t *out);
extern kern_status_t port_create(kern_handle_t *out);
extern kern_status_t port_connect(
	kern_handle_t port,
	tid_t task_id,
	unsigned int channel_id);
extern kern_status_t port_disconnect(kern_handle_t port);

extern kern_status_t msg_send(
	kern_handle_t port,
	const struct iovec *req_data,
	size_t req_data_count,
	struct iovec *resp_data,
	size_t resp_data_count);

extern kern_status_t msg_recv(
	kern_handle_t channel,
	msgid_t *out_id,
	struct iovec *out_data,
	size_t out_data_count);

extern kern_status_t msg_reply(
	kern_handle_t channel,
	msgid_t id,
	const struct iovec *reply_data,
	size_t reply_data_count);

extern kern_status_t msg_read(
	kern_handle_t channel,
	msgid_t id,
	size_t offset,
	struct iovec *out,
	size_t out_count,
	size_t *nr_read);

extern kern_status_t msg_write(
	kern_handle_t channel,
	msgid_t id,
	size_t offset,
	const struct iovec *in,
	size_t nr_in,
	size_t *nr_written);

#endif