root/src/servers/registrar/Debug.h
#ifndef DEBUG_H
#define DEBUG_H
/* Debug - debug stuff
**
** Initial version by Axel Dörfler, axeld@pinc-software.de
** This file may be used under the terms of the MIT License.
*/
#ifndef DEBUG
#       define DEBUG 0
#endif

#include <stdio.h>

#include <OS.h>

#ifdef DEBUG_PRINTF
        #define __out DEBUG_PRINTF
#else
        #define __out printf
#endif

// Short overview over the debug output macros:
//      PRINT()
//              is for general messages that very unlikely should appear in a release build
//      FATAL()
//              this is for fatal messages, when something has really gone wrong
//      INFORM()
//              general information, as disk size, etc.
//      REPORT_ERROR(status_t)
//              prints out error information
//      RETURN_ERROR(status_t)
//              calls REPORT_ERROR() and return the value
//      D()
//              the statements in D() are only included if DEBUG is defined

#define DEBUG_APP "REG"
#if DEBUG
        #define PRINT(x...) { __out(DEBUG_APP ": " x); }
        #define REPORT_ERROR(status) \
                __out(DEBUG_APP ": %s:%d: %s\n", __FUNCTION__, __LINE__, \
                        strerror(status));
        #define RETURN_ERROR(err) \
                { \
                        status_t _status = err; \
                        if (_status < B_OK) \
                                REPORT_ERROR(_status); \
                        return _status; \
                }
        #define SET_ERROR(var, err) \
                { \
                        status_t _status = err; \
                        if (_status < B_OK) \
                                REPORT_ERROR(_status); \
                        var = _status; \
                }
        #define FATAL(x...) { __out(DEBUG_APP ": " x); }
        #define ERROR(x...) { __out(DEBUG_APP ": " x); }
        #define WARNING(x...) { __out(DEBUG_APP ": " x); }
        #define INFORM(x...) { __out(DEBUG_APP ": " x); }
        #define FUNCTION(x) { __out(DEBUG_APP ": %s() ",__FUNCTION__); __out x; }
        #define FUNCTION_START() { __out(DEBUG_APP ": %s()\n",__FUNCTION__); }
        #define FUNCTION_END() { __out(DEBUG_APP ": %s() done\n",__FUNCTION__); }
        #define D(x) {x;};
#else
        #define PRINT(x...) ;
        #define REPORT_ERROR(status) ;
        #define RETURN_ERROR(status) return status;
        #define SET_ERROR(var, err) var = err;
        #define FATAL(x...) { __out(DEBUG_APP ": " x); }
        #define ERROR(x...) { __out(DEBUG_APP ": " x); }
        #define WARNING(x...) { __out(DEBUG_APP ": " x); }
        #define INFORM(x...) { __out(DEBUG_APP ": " x); }
        #define FUNCTION(x...) ;
        #define FUNCTION_START() ;
        #define FUNCTION_END() ;
        #define D(x) ;
#endif


#endif  /* DEBUG_H */