RetroZilla/extensions/xmlterm/lineterm/tracelog.h
2015-10-20 23:03:22 -04:00

166 lines
6.1 KiB
C

/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is lineterm.
*
* The Initial Developer of the Original Code is
* Ramalingam Saravanan.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/* tracelog.h: Tracing/logging module header
* CPP options:
* DEBUG_LTERM: to enable debugging output
* _UNISTRING_H: for unicode messages compatible with "unistring.h"
*/
#ifndef _TRACELOG_H
#define _TRACELOG_H 1
#include <stdio.h>
#include <string.h>
/* Trace/log macros (to be used after call to tlog_init to initialize):
* TLOG_ERROR: error message macro, e.g.,
* TLOG_ERROR(format, val1, val2);
* TOG_WARNING: warning message macro, e.g.,
* TLOG_WARNING(format, val1, val2);
* TLOG_PRINT: message logging macro, e.g., (no terminating semicolon)
* TLOG_PRINT(10,(format, val1, val2));
* (if UNISTRING module is being used)
* TLOG_UNICHAR: Unicode string logging macro, e.g., (no terminating semicolon)
* TLOG_UNICHAR(10,(label,str,count));
*/
/* Max. number of modules recognized by TRACELOG */
# define TLOG_MAXMODULES 50
#ifdef __cplusplus
extern "C" {
#endif
/* Initializes all TRACELOG operations;
* needs to be called before any other trace/log calls.
*
* FILESTREAM is the file stream to be used to print messages.
*
* Normally, only error messages are sent to FILESTREAM.
* If FILESTREAM is null, all output, including error output, is suppressed.
*/
void tlog_init(FILE* fileStream);
/** Set diagnostic message display level for module no. IMODULE.
* (0 <= IMODULE < TLOG_MAXMODULES)
*
* MESSAGELEVEL (>=0) specifies the diagnostic message display level:
* only diagnostic messages with level values >= MESSAGELEVEL are printed
* (For example, level 10, 11, ...: outermost level;
* level 20, 21, ...: next inner level;
* ...
* level 50, 51, ...: innermost level)
*
* The message SUBLEVEL threshold is defined as MESSAGELEVEL%10
* (ranging from 0 to 9).
* Only those diagnostic messages with sublevel values >= SUBLEVEL threshold
* are displayed
* Usually, the SUBLEVEL threshold values are interpreted as
* 0 => print single message per selected procedure.
* 1...9 => print only messages upto selected sublevel.
*
* Setting MESSAGELEVEL to zero and FUNCTIONLIST to null for all modules
* disables debugging and printing of warning messages.
* (This is the initial configuration following the call to lterm_init.)
* Setting MESSAGELEVEL to 1 for atleast one module enables debugging and
* causes warning messages for all modules to be printed.
*
* FUNCTIONLIST is a colon-separated string of function names, e.g.,
* "func_a:func_b".
* Trace/log messages for functions in this list are always output
* if debugging is enabled provided the sublevel values exceed the threshold,
* regardless of full message level values.
* If FUNCTIONLIST contains a single method name without a class name, or a
* class name without a method name, then the missing portion is assumed
* to be wild-carded.
*
* Returns 0 on success, -1 otherwise (i.e., for invalid module numbers)
*/
int tlog_set_level(int imodule, int messageLevel, const char *functionList);
int tlog_test(int imodule, char *procname, int level);
void tlog_message(const char *format, ...);
void tlog_warning(const char *format, ...);
/* TRACELOG global variables */
typedef struct {
FILE *errorStream; /* file stream for logging */
int debugOn;
int messageLevel[TLOG_MAXMODULES];
char *functionList[TLOG_MAXMODULES]; /* list of functions to be debugged */
} TlogGlobal;
extern TlogGlobal tlogGlobal;
#ifdef __cplusplus
}
#endif
#if defined(USE_NSPR_BASE) && !defined(DEBUG_LTERM)
#include "prlog.h"
#define TLOG_MESSAGE PR_LogPrint
#else
#define TLOG_MESSAGE tlog_message
#endif
#define TLOG_ERROR TLOG_MESSAGE
#define TLOG_WARNING if (tlogGlobal.debugOn) TLOG_MESSAGE
#define TLOG_PRINT(imodule,procname,level,args) \
do { \
if (tlogGlobal.debugOn && tlog_test(imodule,":" #procname ":",level)) { \
TLOG_MESSAGE args; \
} \
} while(0)
#ifdef _UNISTRING_H
void tlog_unichar(const UNICHAR *buf, int count);
#define TLOG_UNICHAR(imodule,procname,level,args) \
do { \
if (tlogGlobal.debugOn && tlog_test(imodule,":" #procname ":",level)) { \
tlog_unichar args; \
} \
} while(0)
#endif
#endif /* _TRACELOG_H */