diff options
| -rw-r--r-- | exec.c | 196 | ||||
| -rw-r--r-- | exec.h | 54 |
2 files changed, 0 insertions, 250 deletions
@@ -1,196 +0,0 @@ -/* $Id: exec.c,v 1.13 2004/03/03 03:47:04 reinelt Exp $ - * - * exec ('x*') functions - * - * Copyright 2001 Leopold Tötsch <lt@toetsch.at> - * - * 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: exec.c,v $ - * Revision 1.13 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 1.12 2004/01/29 04:40:02 reinelt - * every .c file includes "config.h" now - * - * Revision 1.11 2004/01/09 04:16:06 reinelt - * added 'section' argument to cfg_get(), but NULLed it on all calls by now. - * - * Revision 1.10 2003/10/05 17:58:50 reinelt - * libtool junk; copyright messages cleaned up - * - * Revision 1.9 2003/02/22 07:53:10 reinelt - * cfg_get(key,defval) - * - * Revision 1.8 2003/02/05 04:31:38 reinelt - * - * T_EXEC: remove trailing CR/LF - * T_EXEC: deactivated maxlen calculation (for I don't understand what it is for :-) - * - * Revision 1.7 2002/04/29 11:00:28 reinelt - * - * added Toshiba T6963 driver - * added ndelay() with nanosecond resolution - * - * Revision 1.6 2001/03/15 09:13:22 ltoetsch - * delay first exec for faster start - * - * Revision 1.5 2001/03/13 08:34:15 reinelt - * - * corrected a off-by-one bug with sensors - * - * Revision 1.4 2001/03/09 14:24:49 ltoetsch - * exec: Scale_x ->Min/Max_x - * - * Revision 1.3 2001/03/08 15:25:38 ltoetsch - * improved exec - * - * Revision 1.2 2001/03/08 08:39:54 reinelt - * - * fixed two typos - * - * Revision 1.1 2001/03/07 18:10:21 ltoetsch - * added e(x)ec commands - * - * - * This implements the x1 .. x9 commands - * config options: - * x1 .. x9 command to execute - * Tick_x1 ... 9 delay in ticks - * Delay_x1 .. 9 delay in seconds - * Max_x1 .. 9 max for scaling bars (100) - * Min_x1 .. 9 min for scaling bars (0) - */ - -#include "config.h" - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> -#include <ctype.h> -#include <errno.h> -#define IN_EXEC -#include "exec.h" -#include "debug.h" -#include "cfg.h" - - -int Exec(int index, char buff[EXEC_TXT_LEN], double *val) -{ - static time_t now[EXECS+1]; - static int errs[EXECS+1]; - static int ticks[EXECS+1]; - char *command, *strticks; - char xn[20]; - char env[EXEC_TXT_LEN]; - FILE *pipe; - size_t len; - int i; - - if (index < 0 || index > EXECS) - return -1; - if (errs[index]) - return -1; - - /* first time ? */ - if (now[index] == 0) { /* not first time, to give faster a chance */ - now[index] = -1; - return 0; - } - if (now[index] > 0) { - /* delay in Ticks ? */ - sprintf(xn, "Tick_x%d", index); - strticks = cfg_get(NULL, xn, NULL); - if (p && *p) { - if (ticks[index]++ % atoi(strticks) != 0) { - free(strticks); - return 0; - } - free(strticks); - } - else { - free(strticks); - sprintf(xn, "Delay_x%d", index); - /* delay in Delay_x* sec ? */ - if (time(NULL) <= now[index] + atoi(cfg_get(NULL, xn, "1"))) { - return 0; - } - } - } - time(&now[index]); - *val = -1; - - sprintf(xn, "x%d", index); - command = cfg_get(NULL, xn, NULL); - - if (!command || !*command) { - error("Empty command for 'x%d'", index); - errs[index]++; - if (command) free(command); - return -1; - } - for (i = 1; i < index; i++) { - sprintf(env, "X%d=%.*s", i, EXEC_TXT_LEN-10, exec[i].s); - putenv(env); - } - putenv("PATH=/usr/local/bin:/usr/bin:/bin"); - pipe = popen(command, "r"); - if (pipe == NULL) { - error("Couldn't run pipe '%s':\n%s", command, strerror(errno)); - errs[index]++; - free(command); - return -1; - } - len = fread(buff, 1, EXEC_TXT_LEN-1, pipe); - if (len <= 0) { - pclose(pipe); - error("Couldn't fread from pipe '%s', len=%d", command, len); - errs[index]++; - *buff = '\0'; - free(command); - return -1; - } - pclose(pipe); - buff[len] = '\0'; - - // remove trailing CR/LF - while (buff[len-1]=='\n' || buff[len-1]=='\r') { - buff[--len]='\0'; - } - - debug("%s: <%s> = '%s'",xn,command,buff); - - if (isdigit(*buff)) { - double max, min; - *val = atof(buff); - sprintf(xn, "Max_x%d", index); - max = atof(cfg_get(NULL, xn, "100")); - sprintf(xn, "Min_x%d", index); - min = atof(cfg_get(NULL, xn, "0")); - if (max != min) - *val = (*val - min)/(max - min); - } - free(command); - return 0; -} - @@ -1,54 +0,0 @@ -/* $Id: exec.h,v 1.3 2003/10/05 17:58:50 reinelt Exp $ - * - * exec ('x*') functions - * - * Copyright 2001 Leopold Tötsch <lt@toetsch.at> - * - * 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: exec.h,v $ - * Revision 1.3 2003/10/05 17:58:50 reinelt - * libtool junk; copyright messages cleaned up - * - * Revision 1.2 2001/03/08 15:25:38 ltoetsch - * improved exec - * - * Revision 1.1 2001/03/07 18:10:21 ltoetsch - * added e(x)ec commands - * - * - */ - -#ifndef _EXEC_H -#define _EXEC_H_ - -#define EXECS 9 -#define EXEC_TXT_LEN 256 - -#ifdef IN_EXEC - #define EXTERN extern -#else - #define EXTERN -#endif - -EXTERN struct { char s[EXEC_TXT_LEN]; double val; } exec[EXECS+1]; - -int Exec (int index, char txt[EXEC_TXT_LEN], double *val); - - -#endif |