/* $Id: debug.c,v 1.12 2005/01/18 06:30:22 reinelt Exp $ * * debug() and error() functions * * Copyright (C) 1999, 2000 Michael Reinelt * Copyright (C) 2004 The LCD4Linux Team * * This file is part of LCD4Linux. * * LCD4Linux is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * LCD4Linux is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * * $Log: debug.c,v $ * Revision 1.12 2005/01/18 06:30:22 reinelt * added (C) to all copyright statements * * Revision 1.11 2004/06/26 12:04:59 reinelt * * uh-oh... the last CVS log message messed up things a lot... * * Revision 1.10 2004/06/26 09:27:20 reinelt * * added '-W' to CFLAGS * changed all C++ comments to C ones * cleaned up a lot of signed/unsigned mistakes * * Revision 1.9 2004/06/20 10:09:54 reinelt * * 'const'ified the whole source * * Revision 1.8 2004/05/26 11:37:36 reinelt * * Curses driver ported. * * Revision 1.7 2004/02/10 07:42:35 reinelt * cut off all old-style files which are no longer used with NextGeneration * * Revision 1.6 2003/10/05 17:58:50 reinelt * libtool junk; copyright messages cleaned up * * Revision 1.5 2003/08/24 05:17:58 reinelt * liblcd4linux patch from Patrick Schemitz * * Revision 1.4 2003/08/08 06:58:06 reinelt * improved forking * * Revision 1.3 2001/03/12 12:39:36 reinelt * * reworked autoconf a lot: drivers may be excluded, #define's went to config.h * * Revision 1.2 2001/03/09 13:08:11 ltoetsch * Added Text driver * * Revision 1.1 2000/11/28 20:20:38 reinelt * * added debug.c * things like that should not hapen. debug.c exists for a few months now, but was never added to CVS. Shit happens.... * */ /* * exported functions: * * message (level, format, ...) * passes the arguments to vsprintf() and * writes the resulting string either to stdout * or syslog. * this function should not be called directly, * but the macros info(), debug() and error() * */ #include "config.h" #include #include #include #include #include "debug.h" int running_foreground = 0; int running_background = 0; int verbose_level = 0; void message (const int level, const char *format, ...) { va_list ap; char buffer[256]; static int log_open=0; if (level>verbose_level) return; va_start(ap, format); vsnprintf(buffer, sizeof(buffer), format, ap); va_end(ap); if (!running_background) { #ifdef WITH_CURSES extern int curses_error(char *); if (!curses_error(buffer)) #endif fprintf (level?stdout:stderr, "%s\n", buffer); } if (running_foreground) return; if (!log_open) { openlog ("LCD4Linux", LOG_PID, LOG_USER); log_open = 1; } switch (level) { case 0: syslog (LOG_ERR, "%s", buffer); break; case 1: syslog (LOG_INFO, "%s", buffer); break; default: syslog (LOG_DEBUG, "%s", buffer); } } n27' href='#n27'>27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 
/* $Id: evaluator.h,v 1.6 2004/03/11 06:39:59 reinelt Exp $
 *
 * expression evaluation
 *
 * Copyright 1999, 2000 Michael Reinelt <reinelt@eunet.at>
 * Copyright 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
 *
 * This file is part of LCD4Linux.
 *
 * LCD4Linux is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * LCD4Linux is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *
 * $Log: evaluator.h,v $
 * Revision 1.6  2004/03/11 06:39:59  reinelt
 * big patch from Martin:
 * - reuse filehandles
 * - memory leaks fixed
 * - earlier busy-flag checking with HD44780
 * - reuse memory for strings in RESULT and hash
 * - netdev_fast to wavid time-consuming regex
 *
 * Revision 1.5  2004/03/06 20:31:16  reinelt
 * Complete rewrite of the evaluator to get rid of the code
 * from mark Morley (because of license issues).
 * The new Evaluator does a pre-compile of expressions, and
 * stores them in trees. Therefore it should be reasonable faster...
 *
 * Revision 1.4  2004/03/03 03:47:04  reinelt
 * big patch from Martin Hejl:
 * - use qprintf() where appropriate
 * - save CPU cycles on gettimeofday()
 * - add quit() functions to free allocated memory
 * - fixed lots of memory leaks
 *
 * Revision 1.3  2004/01/12 03:51:01  reinelt
 * evaluating the 'Variables' section in the config file
 *
 * Revision 1.2  2003/10/11 06:01:53  reinelt
 *
 * renamed expression.{c,h} to client.{c,h}
 * added config file client
 * new functions 'AddNumericVariable()' and 'AddStringVariable()'
 * new parameter '-i' for interactive mode
 *
 * Revision 1.1  2003/10/06 04:34:06  reinelt
 * expression evaluator added
 *
 */


#ifndef _EVALUATOR_H_
#define _EVALUATOR_H_


// RESULT bitmask
#define R_NUMBER 1
#define R_STRING 2

typedef struct {
  int type;
  double number;
  int    length;
  char  *string;
} RESULT;


int  SetVariable        (char *name, RESULT *value);
int  SetVariableNumeric (char *name, double  value);
int  SetVariableString  (char *name, char   *value);

int  AddFunction        (char *name, int argc, void (*func)());

void DeleteVariables    (void);
void DeleteFunctions    (void);

void    DelResult (RESULT *result);
RESULT* SetResult (RESULT **result, int type, void *value);

double R2N (RESULT *result);
char*  R2S (RESULT *result);

int  Compile (char *expression, void **tree);
int  Eval    (void *tree, RESULT *result);
void DelTree (void *tree);

#endif
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