Am 08.12.2013 13:34, schrieb Heiko Baumann:
Woran könnte das liegen? Ich verwende einen raspi mit Udos Hardware und Henriks 1wirevz.
Es liegt an Henriks 1wirevz. Speziell an der 1wirevz.c
Habe mal meinen Sohnemann gebeten das zu fixen. Jetzt tuts bis -43°C (tiefer ging das Kältespray nicht ) :) Die 1wirevz.c und eine binary dazu häng ich mal an. Wenns die binary nicht tut, bitte die .c selbst compilieren.
@Henrik: Bitte die Änderung in deine 1wirevz.c einfließen lassen. Gruß Udo
1wirevz
Description: Binary data
/************************************************************************** DS2482 I²C 1-Wire® Master to Volkszaehler 'RaspberryPI deamon'. https://github.com/w3llschmidt/1wirevz.git Henrik Wellschmidt <w3llschm...@gmail.com> **************************************************************************/ #define DAEMON_NAME "1wirevz" #define DAEMON_VERSION "1.5" #define DAEMON_BUILD "1" /************************************************************************** This program 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 3 of the License, or (at your option) any later version. This program 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, see <http://www.gnu.org/licenses/>. **************************************************************************/ #include <stdio.h> /* standard library functions for file input and output */ #include <stdlib.h> /* standard library for the C programming language, */ #include <string.h> /* functions implementing operations on strings */ #include <unistd.h> /* provides access to the POSIX operating system API */ #include <sys/stat.h> /* declares the stat() functions; umask */ #include <fcntl.h> /* file descriptors */ #include <syslog.h> /* send messages to the system logger */ #include <errno.h> /* macros to report error conditions through error codes */ #include <signal.h> /* signal processing */ #include <stddef.h> /* defines the macros NULL and offsetof as well as the types ptrdiff_t, wchar_t, and size_t */ #include <dirent.h> /* constructs that facilitate directory traversing */ #include <libconfig.h> /* reading, manipulating, and writing structured configuration files */ #include <curl/curl.h> /* multiprotocol file transfer library */ void daemonShutdown(); void signal_handler(int sig); void daemonize(char *rundir, char *pidfile); int pidFilehandle, minterval, vzport, i, count; const char *vzserver, *vzpath, *uuid; char sensorid[3][32][17], vzuuid[3][32][64], crc_buffer[64], temp_buffer[64], fn[128], url[128]; char crc_ok[] = "YES"; char not_found[] = "not found."; double temp; config_t cfg; void signal_handler(int sig) { switch(sig) { case SIGHUP: syslog(LOG_WARNING, "Received SIGHUP signal."); break; case SIGINT: case SIGTERM: syslog(LOG_INFO, "Daemon exiting"); daemonShutdown(); exit(EXIT_SUCCESS); break; default: syslog(LOG_WARNING, "Unhandled signal %s", strsignal(sig)); break; } } void daemonShutdown() { close(pidFilehandle); remove("/tmp/1wirevz.pid"); } void daemonize(char *rundir, char *pidfile) { int pid, sid, i; char str[10]; struct sigaction newSigAction; sigset_t newSigSet; if (getppid() == 1) { return; } sigemptyset(&newSigSet); sigaddset(&newSigSet, SIGCHLD); sigaddset(&newSigSet, SIGTSTP); sigaddset(&newSigSet, SIGTTOU); sigaddset(&newSigSet, SIGTTIN); sigprocmask(SIG_BLOCK, &newSigSet, NULL); newSigAction.sa_handler = signal_handler; sigemptyset(&newSigAction.sa_mask); newSigAction.sa_flags = 0; sigaction(SIGHUP, &newSigAction, NULL); sigaction(SIGTERM, &newSigAction, NULL); sigaction(SIGINT, &newSigAction, NULL); pid = fork(); if (pid < 0) { exit(EXIT_FAILURE); } if (pid > 0) { printf("Child process created: %d\n", pid); exit(EXIT_SUCCESS); } //umask(027); sid = setsid(); if (sid < 0) { exit(EXIT_FAILURE); } for (i = getdtablesize(); i >= 0; --i) { close(i); } close(STDIN_FILENO); close(STDOUT_FILENO); close(STDERR_FILENO); chdir(rundir); pidFilehandle = open(pidfile, O_RDWR|O_CREAT, 0600); if (pidFilehandle == -1 ) { syslog(LOG_INFO, "Could not open PID lock file %s, exiting", pidfile); exit(EXIT_FAILURE); } if (lockf(pidFilehandle,F_TLOCK,0) == -1) { syslog(LOG_INFO, "Could not lock PID lock file %s, exiting", pidfile); exit(EXIT_FAILURE); } sprintf(str,"%d\n",getpid()); write(pidFilehandle, str, strlen(str)); } void cfile() { config_init(&cfg); int chdir(const char *path); chdir ("/etc"); if(!config_read_file(&cfg, DAEMON_NAME".cfg")) { syslog(LOG_INFO, "Config error > /etc/%s - %s\n", config_error_file(&cfg),config_error_text(&cfg)); config_destroy(&cfg); daemonShutdown(); exit(EXIT_FAILURE); } if (!config_lookup_string(&cfg, "vzserver", &vzserver)) { syslog(LOG_INFO, "Missing 'VzServer' setting in configuration file."); config_destroy(&cfg); daemonShutdown(); exit(EXIT_FAILURE); } else syslog(LOG_INFO, "VzServer: %s", vzserver); if (!config_lookup_int(&cfg, "vzport", &vzport)) { syslog(LOG_INFO, "Missing 'VzPort' setting in configuration file."); config_destroy(&cfg); daemonShutdown(); exit(EXIT_FAILURE); } else syslog(LOG_INFO, "VzPort: %d", vzport); if (!config_lookup_string(&cfg, "vzpath", &vzpath)) { syslog(LOG_INFO, "Missing 'VzPath' setting in configuration file."); config_destroy(&cfg); daemonShutdown(); exit(EXIT_FAILURE); } else syslog(LOG_INFO, "VzPath: %s", vzpath); if (!config_lookup_int(&cfg, "interval", &minterval)) { syslog(LOG_INFO, "Missing 'Interval' setting in configuration file."); config_destroy(&cfg); daemonShutdown(); exit(EXIT_FAILURE); } else syslog(LOG_INFO, "Metering interval: %d sec", minterval); } int count_i2cdevices() { int i2cdevices = 0; DIR * dirp; struct dirent * entry; dirp = opendir("/sys/bus/i2c/devices/"); if (!dirp) { syslog ( LOG_INFO, "Error: /sys/bus/i2c/devices not found! Check kernelmodul!" ); daemonShutdown(); } while ((entry = readdir(dirp)) != NULL) { if (entry->d_type == DT_LNK) { i2cdevices++; } } closedir(dirp); return i2cdevices-2; } void ds1820init() { int i = 0; for (i=1; i<=count_i2cdevices(); i++) { char fn[64]; sprintf ( fn, "/sys/bus/w1/devices/w1_bus_master%d/w1_master_slaves", i ); FILE *fp; if ( (fp = fopen ( fn, "r" )) == NULL ) { syslog(LOG_INFO, "%s", strerror(errno)); } else { count = 1; while ( fgets ( sensorid[i][count], sizeof(sensorid[i][count]), fp ) != NULL ) { sensorid[i][count][strlen(sensorid[i][count])-1] = '\0'; if ( ! ( strstr ( sensorid[i][count], not_found ) )) { char buffer[32]; sprintf ( buffer, "*%s", sensorid[i][count] ); if ( config_lookup_string( &cfg, buffer, &uuid ) == CONFIG_TRUE ) strcpy(vzuuid[i][count], uuid); } if ( ! ( strstr ( sensorid[i][count], not_found ) )) { syslog( LOG_INFO, "%s (Bus: %d) (VzUUID: %s)", sensorid[i][count], i, vzuuid[i][count] ); } count++; } } if (fp != NULL) fclose ( fp ); } } void http_post( double temp, char *vzuuid ) { CURL *curl; CURLcode curl_res; sprintf ( url, "http://%s:%d/%s/data/%s.json?value=%.2f";, vzserver, vzport, vzpath, vzuuid, temp ); curl_global_init(CURL_GLOBAL_ALL); curl = curl_easy_init(); if(curl) { FILE* devnull = NULL; devnull = fopen("/dev/null", "w+"); curl_easy_setopt(curl, CURLOPT_USERAGENT, DAEMON_NAME " " DAEMON_VERSION ); curl_easy_setopt(curl, CURLOPT_URL, url); curl_easy_setopt(curl, CURLOPT_POSTFIELDS, ""); curl_easy_setopt(curl, CURLOPT_WRITEDATA, devnull); if( (curl_res = curl_easy_perform(curl)) != CURLE_OK) { syslog ( LOG_INFO, "HTTP_POST(): %s", curl_easy_strerror(curl_res) ); } curl_easy_cleanup(curl); fclose ( devnull ); } curl_global_cleanup(); } double ds1820read(char *sensorid) { FILE *fp; sprintf(fn, "/sys/bus/w1/devices/%s/w1_slave", sensorid ); if ( (fp = fopen ( fn, "r" )) == NULL ) { return(-1); } else { fgets( crc_buffer, sizeof(crc_buffer), fp ); if ( !strstr ( crc_buffer, crc_ok ) ) { syslog(LOG_INFO, "CRC check failed, SensorID: %s", sensorid); fclose ( fp ); return(-1); } else { fgets( temp_buffer, sizeof(temp_buffer), fp ); fgets( temp_buffer, sizeof(temp_buffer), fp ); char *pos = strstr(temp_buffer, "t="); if (pos == NULL) return -1; pos += 2; temp = atof(pos)/1000; fclose ( fp ); http_post(temp, vzuuid[i][count]); } } } int main() { freopen( "/dev/null", "r", stdin); freopen( "/dev/null", "w", stdout); freopen( "/dev/null", "w", stderr); setlogmask(LOG_UPTO(LOG_INFO)); openlog(DAEMON_NAME, LOG_CONS | LOG_PERROR, LOG_USER); syslog(LOG_INFO, "DS2482 I²C 1-Wire® Master to Volkszaehler deamon %s (%s) %d", DAEMON_VERSION, DAEMON_BUILD, count_i2cdevices()); cfile(); ds1820init(); char pid_file[16]; sprintf ( pid_file, "/tmp/%s.pid", DAEMON_NAME ); daemonize( "/tmp/", pid_file ); while(1) { i = 0; for (i=1; i<=count_i2cdevices(); i++) { sprintf ( fn, "/sys/bus/w1/devices/w1_bus_master%d/w1_master_slaves", i ); FILE *fp; if ( (fp = fopen ( fn, "r" )) == NULL ) { syslog(LOG_INFO, "%s", strerror(errno)); } else { count = 1; while ( fgets ( sensorid[i][count], sizeof(sensorid[i][count]), fp ) != NULL ) { sensorid[i][count][strlen(sensorid[i][count])-1] = '\0'; if ( !( strstr ( sensorid[i][count], not_found ) )) { ds1820read(sensorid[i][count]); } count++; } } if (fp != NULL) fclose ( fp ); } sleep(minterval); } return(0); }
