syndilights/open-lighting-architecture/libartnet-1.1.0/artnet/misc.h

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2010-10-31 17:32:25 +01:00
/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* misc.h
* Header file for misc.c
* Copyright (C) 2004-2005 Simon Newton
*/
#ifndef ARTNET_MISC_H
#define ARTNET_MISC_H
#include <errno.h>
#include <string.h>
extern char artnet_errstr[256];
void artnet_error(const char *fmt, ...);
int32_t artnet_misc_nbytes_to_32(uint8_t bytes[4]);
void artnet_misc_int_to_bytes(int data, uint8_t *bytes);
// check if the node is null and return an error
#define check_nullnode(node) if (node == NULL) { \
artnet_error("%s : argument 1 (artnet_node) was null" , __FUNCTION__ ); \
return ARTNET_EARG; \
}
#define artnet_error_malloc() artnet_error("%s : malloc error %s" , __FUNCTION__, strerror(errno) )
#define artnet_error_realloc() artnet_error("%s : realloc error %s" , __FUNCTION__, strerror(errno) )
#define artnet_error_nullnode() artnet_error("%s : argument 1 (artnet_node) was null" , __FUNCTION__ )
#endif