/** Node type: File
 *
 * This file implements the file type for nodes.
 *
 * @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
 * @copyright 2015, Institute for Automation of Complex Power Systems, EONERC
 * @file
 * @addtogroup file File-IO node type
 * @{
 */

#ifndef _FILE_H_
#define _FILE_H_

#include <stdio.h>

#include "node.h"

struct file {
	FILE *in;
	FILE *out;

	const char *path_in;
	const char *path_out;

	const char *mode;	/**< The mode for fopen() which is used for the out file. */
	
	double rate;		/**< The sending rate. */
	int tfd;		/**< Timer file descriptor. Blocks until 1/rate seconds are elapsed. */
};

/** @see node_vtable::init */
int file_init(int argc, char *argv[], struct settings *set);

/** @see node_vtable::deinit */
int file_deinit();

/** @see node_vtable::print */
int file_print(struct node *n, char *buf, int len);

/** @see node_vtable::parse */
int file_parse(config_setting_t *cfg, struct node *n);

/** @see node_vtable::open */
int file_open(struct node *n);

/** @see node_vtable::close */
int file_close(struct node *n);

/** @see node_vtable::read */
int file_read(struct node *n, struct msg *pool, int poolsize, int first, int cnt);

/** @see node_vtable::write */
int file_write(struct node *n, struct msg *pool, int poolsize, int first, int cnt);

#endif /** _FILE_H_ @} */