Mercurial > mbsePi-apps / file comparison
comparison: brewco/util.c
brewco/util.c
- changeset 487
- d5bc44183aa4
- parent 486
- 5a237a99a793
- child 488
- bee1f70fb42b
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| 486:5a237a99a793 | 487:d5bc44183aa4 |
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| 1 /***************************************************************************** | |
| 2 * Copyright (C) 2015 | |
| 3 * | |
| 4 * Michiel Broek <mbroek at mbse dot eu> | |
| 5 * | |
| 6 * This file is part of the mbsePi-apps | |
| 7 * | |
| 8 * This is free software; you can redistribute it and/or modify it | |
| 9 * under the terms of the GNU General Public License as published by the | |
| 10 * Free Software Foundation; either version 2, or (at your option) any | |
| 11 * later version. | |
| 12 * | |
| 13 * mbsePi-apps is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 16 * General Public License for more details. | |
| 17 * | |
| 18 * You should have received a copy of the GNU General Public License | |
| 19 * along with ThermFerm; see the file COPYING. If not, write to the Free | |
| 20 * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
| 21 *****************************************************************************/ | |
| 22 | |
| 23 #include "brewco.h" | |
| 24 #include "util.h" | |
| 25 #include "slcd.h" | |
| 26 | |
| 27 #ifdef HAVE_WIRINGPI_H | |
| 28 extern int lcdHandle; | |
| 29 #endif | |
| 30 extern int slcdHandle; | |
| 31 | |
| 32 | |
| 33 /* | |
| 34 * Make directory tree, the name must end with a / | |
| 35 */ | |
| 36 int mkdirs(char *name, mode_t mode) | |
| 37 { | |
| 38 char buf[PATH_MAX], *p, *q; | |
| 39 int last = 0, oldmask; | |
| 40 | |
| 41 memset(&buf, 0, sizeof(buf)); | |
| 42 strncpy(buf, name, sizeof(buf)-1); | |
| 43 buf[sizeof(buf)-1] = '\0'; | |
| 44 | |
| 45 p = buf+1; | |
| 46 | |
| 47 oldmask = umask(000); | |
| 48 while ((q = strchr(p, '/'))) { | |
| 49 *q = '\0'; | |
| 50 mkdir(buf, mode); | |
| 51 last = errno; | |
| 52 *q = '/'; | |
| 53 p = q+1; | |
| 54 } | |
| 55 | |
| 56 umask(oldmask); | |
| 57 | |
| 58 if ((last == 0) || (last == EEXIST)) { | |
| 59 return TRUE; | |
| 60 } else { | |
| 61 syslog(LOG_NOTICE, "mkdirs(%s)", name); | |
| 62 return FALSE; | |
| 63 } | |
| 64 } | |
| 65 | |
| 66 | |
| 67 | |
| 68 /* | |
| 69 * Test if the given file exists. The second option is: | |
| 70 * R_OK - test for Read rights | |
| 71 * W_OK - test for Write rights | |
| 72 * X_OK - test for eXecute rights | |
| 73 * F_OK - test file presence only | |
| 74 */ | |
| 75 int file_exist(char *path, int mode) | |
| 76 { | |
| 77 if (access(path, mode) != 0) | |
| 78 return errno; | |
| 79 | |
| 80 return 0; | |
| 81 } | |
| 82 | |
| 83 | |
| 84 | |
| 85 /* | |
| 86 * Buffered filecopy, filetime is preserved. | |
| 87 */ | |
| 88 int file_cp(char *from, char *to) | |
| 89 { | |
| 90 char *line; | |
| 91 FILE *stfrom, *stto; | |
| 92 int dummy, bread; | |
| 93 static int error; | |
| 94 struct stat sb; | |
| 95 struct utimbuf ut; | |
| 96 | |
| 97 stfrom = fopen(from, "r"); | |
| 98 if (stfrom == NULL) | |
| 99 return errno; | |
| 100 | |
| 101 stto = fopen(to, "w"); | |
| 102 if (stto == NULL) { | |
| 103 error = errno; | |
| 104 fclose(stfrom); | |
| 105 return error; | |
| 106 } | |
| 107 | |
| 108 line = malloc(16384); | |
| 109 do { | |
| 110 bread = fread(line, 1, 16384, stfrom); | |
| 111 dummy = fwrite(line, 1, bread, stto); | |
| 112 if (bread != dummy) { | |
| 113 error = errno; | |
| 114 fclose(stfrom); | |
| 115 fclose(stto); | |
| 116 unlink(to); | |
| 117 free(line); | |
| 118 return error; | |
| 119 } | |
| 120 } while (bread != 0); | |
| 121 free(line); | |
| 122 fclose(stfrom); | |
| 123 if (fclose(stto) != 0) { | |
| 124 error = errno; | |
| 125 unlink(to); | |
| 126 return error; | |
| 127 } | |
| 128 | |
| 129 /* | |
| 130 * copy successfull, now copy file- and modification-time | |
| 131 */ | |
| 132 if (stat(from, &sb) == 0) { | |
| 133 ut.actime = mktime(localtime(&sb.st_atime)); | |
| 134 ut.modtime = mktime(localtime(&sb.st_mtime)); | |
| 135 if (utime(to, &ut) != 0) { | |
| 136 error = errno; | |
| 137 unlink(to); | |
| 138 return error; | |
| 139 } | |
| 140 chmod(to, sb.st_mode); | |
| 141 } | |
| 142 | |
| 143 return 0; | |
| 144 } | |
| 145 | |
| 146 | |
| 147 #ifndef HAVE_WIRINGPI_H | |
| 148 long millis(void) | |
| 149 { | |
| 150 struct timespec now; | |
| 151 | |
| 152 clock_gettime(CLOCK_REALTIME , &now); | |
| 153 return ((now.tv_sec * 1000000000) + now.tv_nsec) / 1000000; | |
| 154 } | |
| 155 #endif | |
| 156 | |
| 157 | |
| 158 void hlt_status(int value) | |
| 159 { | |
| 160 #ifdef HAVE_WIRINGPI_H | |
| 161 piLock(LOCK_LCD); | |
| 162 lcdPosition(lcdHandle, 0, 1); | |
| 163 #endif | |
| 164 slcdPosition(slcdHandle, 0, 1); | |
| 165 if (value) { | |
| 166 #ifdef HAVE_WIRINGPI_H | |
| 167 lcdPutchar(lcdHandle, 5); | |
| 168 #endif | |
| 169 slcdPutchar(slcdHandle, 5); | |
| 170 } else { | |
| 171 #ifdef HAVE_WIRINGPI_H | |
| 172 lcdPutchar(lcdHandle, 6); | |
| 173 #endif | |
| 174 slcdPutchar(slcdHandle, 6); | |
| 175 } | |
| 176 #ifdef HAVE_WIRINGPI_H | |
| 177 piUnlock(LOCK_LCD); | |
| 178 #endif | |
| 179 } | |
| 180 | |
| 181 | |
| 182 | |
| 183 void mlt_status(int value) | |
| 184 { | |
| 185 #ifdef HAVE_WIRINGPI_H | |
| 186 piLock(LOCK_LCD); | |
| 187 lcdPosition(lcdHandle, 18, 1); | |
| 188 #endif | |
| 189 slcdPosition(slcdHandle, 18, 1); | |
| 190 if (value) { | |
| 191 #ifdef HAVE_WIRINGPI_H | |
| 192 lcdPutchar(lcdHandle, 5); | |
| 193 #endif | |
| 194 slcdPutchar(slcdHandle, 5); | |
| 195 } else { | |
| 196 #ifdef HAVE_WIRINGPI_H | |
| 197 lcdPutchar(lcdHandle, 6); | |
| 198 #endif | |
| 199 slcdPutchar(slcdHandle, 6); | |
| 200 } | |
| 201 #ifdef HAVE_WIRINGPI_H | |
| 202 piUnlock(LOCK_LCD); | |
| 203 #endif | |
| 204 } | |
| 205 | |
| 206 | |
| 207 | |
| 208 void pump_status(int value) | |
| 209 { | |
| 210 #ifdef HAVE_WIRINGPI_H | |
| 211 piLock(LOCK_LCD); | |
| 212 lcdPosition(lcdHandle, 19, 1); | |
| 213 #endif | |
| 214 slcdPosition(slcdHandle, 19, 1); | |
| 215 if (value) { | |
| 216 #ifdef HAVE_WIRINGPI_H | |
| 217 lcdPutchar(lcdHandle, 3); | |
| 218 #endif | |
| 219 slcdPutchar(slcdHandle, 3); | |
| 220 } else { | |
| 221 #ifdef HAVE_WIRINGPI_H | |
| 222 lcdPutchar(lcdHandle, 4); | |
| 223 #endif | |
| 224 slcdPutchar(slcdHandle, 4); | |
| 225 } | |
| 226 #ifdef HAVE_WIRINGPI_H | |
| 227 piUnlock(LOCK_LCD); | |
| 228 #endif | |
| 229 } | |
| 230 | |
| 231 | |
| 232 | |
| 233 /* From ArdBir */ | |
| 234 float Arrotonda025(float Num){ | |
| 235 // Appoggio la parte intera | |
| 236 int Appoggio= (int)Num; | |
| 237 | |
| 238 // Arrotondo il valore con peso 0.25 | |
| 239 return Appoggio+(int)((Num-Appoggio)*1000/225)*0.25; | |
| 240 } | |
| 241 | |
| 242 float ConvertiCtoF(float Num){ | |
| 243 Num = Num/16; // Recupero il valore | |
| 244 Num = (Num*1.8)+32; // Converto in °F | |
| 245 Num = Arrotonda025(Num); | |
| 246 return Num*16; // Preparo il valore per la registrazione | |
| 247 } | |
| 248 float ConvertiFtoC(float Num){ | |
| 249 Num = Num/16; // Recupero il valore | |
| 250 Num = (Num-32)/1.8; // Converto in °C | |
| 251 Num = Arrotonda025(Num); | |
| 252 return Num*16; // Preparo il valore per la registrazione | |
| 253 } | |
| 254 |
