/*

This file is part of netcdf-4, a netCDF-like interface for HDF5, or a
HDF5 backend for netCDF, depending on your point of view.

This file contains macros and prototyes relating to logging
errors. Also it contains the functions nc_malloc, nc_calloc, and
nc_free, which provide some simple memory checking for debug purposes
only.

Copyright 1993-2005, University Corporation for Atmospheric
Research. See COPYRIGHT file for copying and redistribution
conditions.

*/

#ifndef _NCERROR_
#define _NCERROR_

#include <nc4internal.h>
#include <stdlib.h>
#include <assert.h>
#include "netcdf.h"

void *nc_malloc(size_t size);
void *nc_calloc(size_t nmemb, size_t size);
void nc_free(void *ptr);

#ifdef LOGGING

/* To log something... */
void nc_log(int severity, const char *fmt, ...);
#define LOG(e) nc_log e

/* To log based on error code, and set retval. */
#define BAIL2(e) do { \
retval = e; \
LOG((0, "file %s, line %d.\n%s", __FILE__, __LINE__, nc_strerror(e))); \
H5Eprint(NULL); \
} while (0) 

/* To log an error message, set retval, and jump to exit. */
#define BAIL(e) do { \
BAIL2(e); \
goto exit; \
} while (0) 

/* To set retval and jump to exit, without logging error message. */
#define BAIL_QUIET(e) do { \
retval = e; \
goto exit; \
} while (0) 


/* Extra memory debugging can be turned on with the EXTRA_MEM_DEBUG
   flag at compile. */
#ifdef EXTRA_MEM_DEBUG
#define MEM_DEBUG_MAX_BLOCKS (100000)
typedef struct {
   void *address;
   size_t size;
} NC_MEM_DEBUG_T;
#endif

#else

/* These definitions will be used unless LOGGING is defined. */
#define nc_calloc calloc
#define nc_malloc malloc
#define nc_free free

#define LOG(e)
#define BAIL(e) do { \
retval = e; \
goto exit; \
} while (0)
#define BAIL_QUIET BAIL
#define BAIL2(e) do { \
goto exit; \
} while (0)
#define nc_set_log_level(e)
#endif

#endif /* _NCERROR_ */