Mon, 04 Aug 2014 23:34:22 +0200
Added PID implementation and 433 MHz radio control switches. Not reliable yet.
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1 | /***************************************************************************** |
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2 | * Copyright (C) 2014 |
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3 | * |
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4 | * Michiel Broek <mbroek at mbse dot eu> |
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5 | * |
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6 | * This file is part of the mbsePi-apps |
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7 | * |
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8 | * This is free software; you can redistribute it and/or modify it |
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9 | * under the terms of the GNU General Public License as published by the |
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10 | * Free Software Foundation; either version 2, or (at your option) any |
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11 | * later version. |
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12 | * |
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13 | * mbsePi-apps is distributed in the hope that it will be useful, but |
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14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 | * General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU General Public License |
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19 | * along with EC-65K; see the file COPYING. If not, write to the Free |
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20 | * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
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21 | *****************************************************************************/ |
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22 | |
106 | 23 | #include "lock.h" |
24 | #include "logger.h" | |
25 | #include "rdconfig.h" | |
160 | 26 | #include "devices.h" |
106 | 27 | #include "server.h" |
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28 | #include "thermferm.h" |
106 | 29 | #include "lcd-pcf8574.h" |
30 | #include "lcd-buffer.h" | |
31 | #include "futil.h" | |
32 | #include "units.h" | |
33 | #include "xutil.h" | |
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34 | |
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35 | |
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36 | char *current_unit = NULL; |
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37 | int tempA = 80; |
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38 | int tempB = 80; |
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39 | |
48 | 40 | key_t key = 5680; /* key to be passed to shmget() */ |
41 | int shmid; | |
42 | ||
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43 | int my_shutdown = FALSE; |
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44 | static pid_t pgrp, mypid; |
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45 | |
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46 | extern int debug; |
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47 | extern sys_config Config; |
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48 | #ifdef HAVE_WIRINGPI_H |
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49 | extern int lcdHandle; |
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50 | extern unsigned char lcdbuf[MAX_LCDS][20][4]; |
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51 | #endif |
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52 | int lcdupdate; |
74 | 53 | #ifndef HAVE_WIRINGPI_H |
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54 | pthread_t threads[4]; |
74 | 55 | #endif |
104 | 56 | extern const char UNITMODE[5][8]; |
57 | ||
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58 | |
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59 | int server(void); |
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60 | void help(void); |
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61 | void die(int); |
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62 | #ifdef HAVE_WIRINGPI_H |
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63 | void sendRCswitch(char *, int); |
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64 | void stopLCD(void); |
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65 | void stopRCswitch(void); |
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66 | #endif |
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67 | |
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68 | |
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69 | |
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70 | void help(void) |
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71 | { |
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72 | fprintf(stdout, "mbsePi-apps thermferm v%s starting\n\n", VERSION); |
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73 | fprintf(stdout, "Usage: thermferm [-d] [-h]\n"); |
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74 | fprintf(stdout, " -d --debug Debug and run in foreground\n"); |
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75 | fprintf(stdout, " -h --help Display this help\n"); |
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76 | } |
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77 | |
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78 | |
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79 | |
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80 | void die(int onsig) |
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81 | { |
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82 | switch (onsig) { |
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83 | case SIGHUP: syslog(LOG_NOTICE, "Got SIGHUP, shutting down"); |
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84 | break; |
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85 | case SIGINT: syslog(LOG_NOTICE, "Keyboard interrupt, shutting down"); |
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86 | break; |
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87 | case SIGTERM: syslog(LOG_NOTICE, "Got SIGTERM, shutting down"); |
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88 | break; |
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89 | default: syslog(LOG_NOTICE, "die() on signal %d", onsig); |
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90 | } |
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91 | |
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92 | my_shutdown = TRUE; |
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93 | } |
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94 | |
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95 | |
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96 | |
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97 | #ifdef HAVE_WIRINGPI_H |
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98 | void stopLCD(void) |
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99 | { |
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100 | mb_lcdClear(lcdHandle); |
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101 | setBacklight(0); |
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102 | } |
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103 | #endif |
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104 | |
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105 | |
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106 | |
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107 | int main(int argc, char *argv[]) |
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108 | { |
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109 | int rc, c, i; |
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110 | pid_t frk; |
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111 | |
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112 | while (1) { |
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113 | int option_index = 0; |
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114 | static struct option long_options[] = { |
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115 | {"debug", 0, 0, 'c'}, |
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116 | {"help", 0, 0, 'h'}, |
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117 | {0, 0, 0, 0} |
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118 | }; |
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119 | |
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120 | c = getopt_long(argc, argv, "dh", long_options, &option_index); |
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121 | if (c == -1) |
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122 | break; |
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123 | |
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124 | switch (c) { |
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125 | case 'd': debug = TRUE; |
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126 | break; |
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127 | case 'h': help(); |
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128 | return 1; |
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129 | } |
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130 | } |
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131 | |
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132 | openlog("thermferm", LOG_PID|LOG_CONS|LOG_NOWAIT, LOG_USER); |
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133 | syslog(LOG_NOTICE, "mbsePi-apps thermferm v%s starting", VERSION); |
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134 | if (debug) |
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135 | fprintf(stdout, "mbsePi-apps thermferm v%s starting\n", VERSION); |
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136 | |
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137 | if (rdconfig()) { |
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138 | fprintf(stderr, "Error reading configuration\n"); |
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139 | syslog(LOG_NOTICE, "halted"); |
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140 | return 1; |
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141 | } |
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142 | |
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143 | /* |
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144 | * Catch all the signals we can, and ignore the rest. Note that SIGKILL can't be ignored |
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145 | * but that's live. This daemon should only be stopped by SIGTERM. |
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146 | * Don't catch SIGCHLD. |
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147 | */ |
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148 | for (i = 0; i < NSIG; i++) { |
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149 | if ((i != SIGCHLD) && (i != SIGKILL) && (i != SIGSTOP)) |
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150 | signal(i, (void (*))die); |
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151 | } |
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152 | |
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153 | #ifdef HAVE_WIRINGPI_H |
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154 | if (wiringPiSetup () ) |
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155 | return 1; |
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156 | |
108 | 157 | if ((rc = initLCD (Config.lcd_cols, Config.lcd_rows))) { |
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158 | fprintf(stderr, "Cannot initialize LCD display, rc=%d\n", rc); |
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159 | return 1; |
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160 | } |
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161 | #endif |
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162 | |
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163 | if (debug) { |
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164 | /* |
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165 | * For debugging run in foreground. |
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166 | */ |
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167 | rc = server(); |
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168 | } else { |
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169 | /* |
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170 | * Server initialization is complete. Now we can fork the |
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171 | * daemon and return to the user. We need to do a setpgrp |
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172 | * so that the daemon will no longer be assosiated with the |
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173 | * users control terminal. This is done before the fork, so |
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174 | * that the child will not be a process group leader. Otherwise, |
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175 | * if the child were to open a terminal, it would become |
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176 | * associated with that terminal as its control terminal. |
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177 | */ |
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178 | if ((pgrp = setpgid(0, 0)) == -1) { |
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179 | syslog(LOG_NOTICE, "setpgpid failed"); |
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180 | } |
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181 | |
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182 | frk = fork(); |
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183 | switch (frk) { |
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184 | case -1: |
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185 | syslog(LOG_NOTICE, "Daemon fork failed: %s", strerror(errno)); |
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186 | syslog(LOG_NOTICE, "Finished, rc=1"); |
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187 | #ifdef HAVE_WIRINGPI_H |
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188 | stopLCD(); |
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189 | #endif |
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190 | exit(1); |
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191 | case 0: /* |
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192 | * Run the daemon |
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193 | */ |
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194 | fclose(stdin); |
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195 | if (open("/dev/null", O_RDONLY) != 0) { |
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196 | syslog(LOG_NOTICE, "Reopen of stdin to /dev/null failed"); |
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197 | _exit(2); |
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198 | } |
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199 | fclose(stdout); |
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200 | if (open("/dev/null", O_WRONLY | O_APPEND | O_CREAT,0600) != 1) { |
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201 | syslog(LOG_NOTICE, "Reopen of stdout to /dev/null failed"); |
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202 | _exit(2); |
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203 | } |
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204 | fclose(stderr); |
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205 | if (open("/dev/null", O_WRONLY | O_APPEND | O_CREAT,0600) != 2) { |
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206 | syslog(LOG_NOTICE, "Reopen of stderr to /dev/null failed"); |
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207 | _exit(2); |
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208 | } |
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209 | mypid = getpid(); |
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210 | rc = server(); |
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211 | break; |
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212 | /* Not reached */ |
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213 | default: |
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214 | /* |
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215 | * Here we detach this process and let the child |
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216 | * run the deamon process. |
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217 | */ |
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218 | syslog(LOG_NOTICE, "Starting daemon with pid %d", frk); |
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219 | exit(0); |
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220 | } |
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221 | } |
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222 | |
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223 | syslog(LOG_NOTICE, "Finished, rc=%d", rc); |
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224 | return rc; |
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225 | } |
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226 | |
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227 | |
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228 | |
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229 | int server(void) |
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230 | { |
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231 | char buf[1024], *filename, target[40], heater[40], cooler[40], fan[40], door[40]; |
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232 | time_t now, last = (time_t)0; |
104 | 233 | units_list *unit; |
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234 | int rc, run = 1, seconds = 0, minutes = 0; |
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235 | float err = 0.0, sp, pv, P_err, I_err = 0.0, D_err, Out; |
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236 | #ifdef HAVE_WIRINGPI_H |
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237 | struct tm *tm; |
108 | 238 | int row; |
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239 | #else |
74 | 240 | long t = 0; |
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241 | #endif |
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242 | |
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243 | if (lockprog((char *)"thermferm")) { |
34 | 244 | syslog(LOG_NOTICE, "Can't lock"); |
245 | return 1; | |
246 | } | |
247 | ||
158 | 248 | rc = devices_detect(); |
249 | if (rc) { | |
250 | syslog(LOG_NOTICE, "Detected %d new devices", rc); | |
251 | if (debug) | |
252 | fprintf(stdout, "Detected %d new devices\n", rc); | |
253 | wrconfig(); | |
254 | } | |
255 | ||
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256 | #ifdef HAVE_WIRINGPI_H |
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257 | rc = piThreadCreate(my_devices_loop); |
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258 | #else |
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259 | rc = pthread_create(&threads[t], NULL, my_devices_loop, (void *)t ); |
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260 | #endif |
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261 | if (rc) { |
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262 | fprintf(stderr, "my_devices_loop thread didn't start rc=%d\n", rc); |
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263 | syslog(LOG_NOTICE, "my_devices_loop thread didn't start rc=%d", rc); |
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264 | #ifndef HAVE_WIRINGPI_H |
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265 | } else { |
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266 | t++; |
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267 | #endif |
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268 | } |
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269 | |
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270 | #ifdef HAVE_WIRINGPI_H |
43 | 271 | rc = piThreadCreate(my_server_loop); |
74 | 272 | #else |
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273 | rc = pthread_create(&threads[t], NULL, my_server_loop, (void *)t ); |
74 | 274 | #endif |
43 | 275 | if (rc) { |
276 | fprintf(stderr, "my_server_loop thread didn't start rc=%d\n", rc); | |
277 | syslog(LOG_NOTICE, "my_server_loop thread didn't start rc=%d", rc); | |
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278 | #ifndef HAVE_WIRINGPI_H |
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279 | } else { |
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280 | t++; |
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281 | #endif |
43 | 282 | } |
283 | ||
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284 | #ifdef HAVE_WIRINGPI_H |
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285 | rc = piThreadCreate(my_units_loop); |
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286 | #else |
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287 | rc = pthread_create(&threads[t], NULL, my_units_loop, (void *)t ); |
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288 | #endif |
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289 | if (rc) { |
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290 | fprintf(stderr, "my_units_loop thread didn't start rc=%d\n", rc); |
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291 | syslog(LOG_NOTICE, "my_units_loop thread didn't start rc=%d", rc); |
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292 | #ifndef HAVE_WIRINGPI_H |
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293 | } else { |
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294 | t++; |
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295 | #endif |
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296 | } |
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297 | |
111 | 298 | #ifdef HAVE_WIRINGPI_H |
108 | 299 | lcd_buf_write(1, (char *)" ThermFerm "); |
300 | lcd_buf_write(2, (char *)" Version %s ", VERSION); | |
111 | 301 | #endif |
108 | 302 | |
104 | 303 | for (unit = Config.units; unit; unit = unit->next) { |
304 | if (unit->mode != UNITMODE_OFF) { | |
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305 | initlog(unit->name); |
104 | 306 | } |
307 | } | |
33
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308 | |
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309 | do { |
46
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310 | if (my_shutdown) |
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311 | run = 0; |
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312 | |
104 | 313 | /* |
314 | * Timed schedulers | |
315 | */ | |
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316 | now = time(NULL); |
104 | 317 | if (now != last) { |
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318 | last = now; |
104 | 319 | seconds++; |
320 | ||
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321 | #ifdef HAVE_WIRINGPI_H |
108 | 322 | row = 3; |
323 | tm = localtime(&now); | |
324 | lcd_buf_write(row++, " %02d-%02d-%04d ", tm->tm_mday, tm->tm_mon + 1, tm->tm_year + 1900); | |
325 | lcd_buf_write(row++, " %02d:%02d:%02d ", tm->tm_hour, tm->tm_min, tm->tm_sec); | |
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326 | |
108 | 327 | for (unit = Config.units; unit; unit = unit->next) { |
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328 | // if (unit->mode != UNITMODE_OFF) { |
108 | 329 | lcd_buf_write(row++, "Unit %s ", unit->name); |
330 | lcd_buf_write(row++, "Mode %s ", UNITMODE[unit->mode]); | |
331 | if (unit->air_address) { | |
332 | lcd_buf_write(row++, " Air %.3f %cC ", unit->air_temperature / 1000.0, 0xdf); | |
333 | } | |
334 | if (unit->beer_address) { | |
335 | lcd_buf_write(row++, "Beer %.3f %cC ", unit->beer_temperature / 1000.0, 0xdf); | |
336 | } | |
156
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337 | // } |
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338 | } |
108 | 339 | |
340 | lcd_buf_show(); | |
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341 | #endif |
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342 | |
104 | 343 | if (seconds == 60) { |
344 | seconds = 0; | |
345 | ||
346 | for (unit = Config.units; unit; unit = unit->next) { | |
347 | if (unit->mode != UNITMODE_OFF) { | |
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348 | |
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349 | if (unit->mode != UNITMODE_NONE) { |
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350 | /* |
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351 | * PID controller |
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352 | */ |
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353 | sp = unit->beer_set; |
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354 | pv = unit->beer_temperature / 1000.0; |
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355 | if (unit->mode == UNITMODE_FRIDGE) { |
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356 | sp = unit->fridge_set; |
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357 | pv = unit->air_temperature / 1000.0; |
176
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358 | } else if (unit->mode == UNITMODE_PROFILE) { |
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359 | sp = unit->prof_target; |
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360 | } |
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361 | |
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362 | unit->PID_err_old = err; |
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363 | err = sp - pv; |
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364 | if (err < unit->idle_rangeH && err > unit->idle_rangeL) |
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365 | err = 0; |
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366 | P_err = err; |
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367 | I_err += unit->PID_err_old; |
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368 | D_err = err - unit->PID_err_old; |
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369 | |
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370 | /* |
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371 | * A postive value means heating, a negative value cooling. |
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372 | */ |
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373 | Out = (5.0*P_err) + (0.25*I_err) + (-1.5*D_err); |
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374 | // Kp 0.1 Ki 0.3 Kd 0.02 |
176
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375 | if (debug) |
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376 | fprintf(stdout, "sp=%.2f pv=%.2f err_old=%.2f err=%.2f P_err=%.2f I_err=%.2f D_err=%.2f Out=%.2f\n", |
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377 | sp, pv, unit->PID_err_old, err, P_err, I_err, D_err, Out); |
179
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378 | if (unit->heater_address) { |
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379 | if (Out >= 2) |
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380 | unit->heater_state = 100; |
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381 | else |
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382 | unit->heater_state = 0; |
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383 | device_out(unit->heater_address, unit->heater_state); |
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384 | } |
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385 | if (unit->cooler_address) { |
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386 | if (Out <= -2) |
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387 | unit->cooler_state = 100; |
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388 | else |
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389 | unit->cooler_state = 0; |
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390 | device_out(unit->cooler_address, unit->cooler_state); |
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391 | } |
176
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392 | } |
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393 | |
105
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394 | snprintf(target, 39, "NA"); |
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395 | snprintf(heater, 39, "NA"); |
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396 | snprintf(cooler, 39, "NA"); |
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397 | snprintf(fan, 39, "NA"); |
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398 | snprintf(door, 39, "NA"); |
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399 | |
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400 | if (unit->mode == UNITMODE_BEER) |
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401 | snprintf(target, 39, "%.1f", unit->beer_set); |
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402 | else if (unit->mode == UNITMODE_FRIDGE) |
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403 | snprintf(target, 39, "%.1f", unit->fridge_set); |
175
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404 | else if (unit->mode == UNITMODE_PROFILE) |
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405 | snprintf(target, 39, "%.1f", unit->prof_target); |
105
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406 | |
175
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407 | if (unit->heater_address) { |
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408 | snprintf(heater, 39, "%d", unit->heater_state); |
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409 | } |
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410 | if (unit->cooler_address) { |
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411 | snprintf(cooler, 39, "%d", unit->cooler_state); |
105
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412 | } |
175
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413 | if (unit->fan_address) { |
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414 | snprintf(fan, 39, "%d", unit->fan_state); |
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415 | } |
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416 | if (unit->door_address) { |
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417 | snprintf(door, 39, "%d", unit->door_state); |
105
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418 | } |
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419 | |
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420 | snprintf(buf, 1023, "%s,%.3f,%.3f,%s,%s,%s,%s,%s", |
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421 | UNITMODE[unit->mode], unit->air_temperature / 1000.0, |
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422 | unit->beer_temperature / 1000.0, target, heater, cooler, fan, door); |
104 | 423 | filename = xstrcpy(unit->name); |
424 | filename = xstrcat(filename, (char *)".log"); | |
425 | logger(filename, buf); | |
426 | free(filename); | |
427 | filename = NULL; | |
428 | } | |
429 | } | |
167
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430 | |
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431 | minutes++; |
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432 | if (minutes == 60) |
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433 | minutes = 0; |
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434 | |
174 | 435 | if ((minutes == 15) || (minutes == 45)) { |
436 | syslog(LOG_NOTICE, "minutes %d seconds %d", minutes, seconds); | |
167
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|
437 | wrconfig(); |
174 | 438 | } |
64
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Write loglines only every 60 seconds
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|
439 | } |
26
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Added coolers program, first draft
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changeset
|
440 | } |
28
32ed1ea4d0b6
Coolers working with a hardcode reference
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diff
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|
441 | usleep(100000); |
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442 | |
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443 | } while (run); |
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444 | |
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445 | if (debug) |
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446 | fprintf(stdout, (char *)"Out of loop\n"); |
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447 | |
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448 | /* |
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449 | * Give threads time to cleanup |
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450 | */ |
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451 | usleep(1500000); |
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452 | |
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453 | #ifdef HAVE_WIRINGPI_H |
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454 | stopLCD(); |
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455 | #endif |
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456 | |
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457 | wrconfig(); |
53 | 458 | |
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459 | ulockprog((char *)"thermferm"); |
34 | 460 | |
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461 | if (debug) |
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462 | fprintf(stdout, "Goodbye\n"); |
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463 | |
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464 | return 0; |
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465 | } |
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466 |