/*
 * error.h
 *
 * Summary:  Exception handling functions.
 *
 * Author:  David Hardy
 */

#ifndef H_ERROR
#define H_ERROR

#ifdef __cplusplus
extern "C" {
#endif

#define MDIO_WARN_UNKNOWN        0x1
#define MDIO_WARN_COMMENT        0x2
#define MDIO_WARN_TRUNC          0x4

#define MDIO_ERR_LEVEL         0x400  /* unused, test whether warn or error */
#define MDIO_ERR_FORMAT        0x800
#define MDIO_ERR_MEMALLOC     0x1000
#define MDIO_ERR_OPEN         0x2000
#define MDIO_ERR_CLOSE        0x4000
#define MDIO_ERR_READ         0x8000
#define MDIO_ERR_WRITE       0x10000
#define MDIO_ERR_UNSUPPORTED 0x20000

int mdio_warn(const char *, ...);   /* works like printf(), except to stderr */
int mdio_error(const char *, ...);
void mdio_fatal(const char *, ...); /* terminates program using exit() */
const char *mdio_errmsg(int);       /* returns string describing status */

#ifdef MDIO_DEBUG
#define MDIO_ASSERT(x)  /* use this like a function call */  \
if (!(x)) mdio_fatal("failed assertion: file %s, line %d\n",__FILE__,__LINE__)
#else
#define MDIO_ASSERT(x)
#endif

#if defined(MDIO_TEST) || defined(MDIO_MODULE_TEST)
/* declare functions used to test module */
int error_test(void);
#endif

#ifdef __cplusplus
}
#endif

#endif  /* H_ERROR */