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PC World Komputer 1998 May
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PILog.h
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/*____________________________________________________________________________*\
*
Copyright (c) 1997 John Roy. All rights reserved.
These sources, libraries and applications are
FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
as long as the following conditions are adhered to.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
3. Redistributions of any form whatsoever and all advertising materials
mentioning features must contain the following
acknowledgment:
"This product includes software developed by John Roy
(http://www.johnroy.com/pi3/)."
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHORS OR ITS CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
OF THE POSSIBILITY OF SUCH DAMAGE.
*____________________________________________________________________________*|
*
* $Source: PILog.h$
* $Date: Sun Aug 10 06:42:18 1997$
*
Description:
\*____________________________________________________________________________*/
/* $HeaderTop:$ */
#ifndef PILOG_H_
#define PILOG_H_
#include "Pi2API.h"
/*____________________________________________________________________________*\
*
Description:
\*____________________________________________________________________________*/
/* --- error types --- */
#define PILOG_ERROR 1
#define PILOG_WARNING 2
#define PILOG_ALL 3
/* --- sink types --- */
#define PILOG_DB 0
#define PILOG_FILE 1
#define PILOG_STDOUT 2
#define PILOG_STDERR 3
/*____________________________________________________________________________*\
*
Name:
PILog_addMessage
Synopsis:
int PILog_addMessage( PIDB *pDB, PIConfig *pConfig, int iType,
const char *pFormat, ... );
Description:
Log a message concerning initialization from a configuration file.
PILog_addMessage() will automatically include information from
parsed configuration DB pConfig.
pFormat is a printf() compatible format string. PILog_addMessage()
takes a variable number of arguments. The number and type of
arguments should be compatible with printf() directives.
The flag iType indicates whether the item should be logged as an
error or a warning, it may contain one of the following values:-
PILOG_ERROR
PILOG_WARNING
PILOG_ALL
Notes:
PILog_addMessage() looks under the root DB for a DB with a key of
PIDBKEY_DIAGNOSTICS.
Return Values:
On success PILog_addMessage() returns zero (PIAPI_COMPLETED).
Errors:
PIAPI_EINVAL if pDB or pFormat is NULL.
PIAPI_ERROR if another error occurred.
See Also:
\*____________________________________________________________________________*/
PUBLIC_PIAPI int PILog_addMessage( PIDB *pDB, PIConfig *pConfig, int iType,
const char *pFormat, ... );
/*____________________________________________________________________________*\
*
Name:
PILog_writeDiagnostics
Synopsis:
int PILog_writeDiagnostics( PIDB *pDB, int iFlags, const char *pFileName )
Description:
Write the contents of the diagnostics DB to the file pFileName. The
value iFlags is the inclusive-or of diagnostic types to write, the
macro PILOG_ALL can be used to specify all message types.
If pFileName is NULL the output will be written to the standard output.
Notes:
PILog_writeDiagnostics() looks under the root DB for a DB with a key of
PIDBKEY_DIAGNOSTICS.
Return Values:
On success PILog_writeDiagnostics() returns zero (PIAPI_COMPLETED).
Errors:
PIAPI_EINVAL if pDB is NULL.
PIAPI_ERROR if another error occurred.
See Also:
\*____________________________________________________________________________*/
PUBLIC_PIAPI int PILog_writeDiagnostics( PIDB *pDB, int iFlags,
const char *pFileName );
/*____________________________________________________________________________*\
*
Name:
PILog_newSink
Synopsis:
int PILog_newSink( int iType, const char *pParam )
Description:
Sets a new sink for logged messages. Messages can be sent to the
main program DB (default), to a file (path to file is given by parameter
pParam), or to a standard stream.
The following flags for iType dictate the new sink.
<UL>
<ITEM><B>PILOG_DB</B> - main program DB, under subtree 'Diagnostics'.
<ITEM><B>PILOG_FILE</B> - a file, path is specified by parameter pParam.
<ITEM><B>PILOG_STDOUT</B> - the stdout stream.
<ITEM><B>PILOG_STDERR</B> - the stderr stream.
</UL>
Notes:
Current logging to a file via this mechanism is not implemented,
attempting to set the log sink to a file will result in an error
code of PIAPI_NOTSUPPORTED.
Return Values:
On success PILog_newSink() returns zero (PIAPI_COMPLETED).
Errors:
PIAPI_EINVAL if iType is PILOG_FILE and pParam is NULL.
PIAPI_ERROR if another error occurred.
PIAPI_NOTSUPPRTED as described under notes.
See Also:
\*____________________________________________________________________________*/
PUBLIC_PIAPI int PILog_newSink( int iType, const char *pParam );
#endif /* PILOG_H_ */