/****************************************************************************
 * Utility functions                                                       *
 ****************************************************************************/

/**
 * @file utils.c
 * @author Celine Mercier (celine.mercier@metabarcoding.org)
 * @date 29 March 2016
 * @brief Code for utility functions.
 */

#include <fcntl.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <dirent.h>
#include <unistd.h>

#include "utils.h"
#include "obidebug.h"
#include "obierrno.h"
#include "obidms.h"


#define DEBUG_LEVEL 0	// TODO has to be defined somewhere else (cython compil flag?)



/**********************************************************************
 *
 * D E F I N I T I O N   O F   T H E   P U B L I C   F U N C T I O N S
 *
 **********************************************************************/


int count_dir(char *dir)
{
	struct dirent *dp;
	DIR *fd;
	int count;

	count = 0;
	if ((fd = opendir(dir)) == NULL)
	{
		obi_set_errno(OBI_UTILS_ERROR);
		obidebug(1, "Error opening a directory: %s\n", dir);
		return -1;
	}
	while ((dp = readdir(fd)) != NULL)
	{
		if ((dp->d_name)[0] == '.')
			continue;
		count++;
	}
	return count;
}