Rob Dobson / RdGasUseMonitor

Monitor for central heating system (e.g. 2zones+hw) Supports up to 15 temp probes (DS18B20/DS18S20) 3 valve monitors Gas pulse meter recording Use stand-alone or with nodeEnergyServer See http://robdobson.com/2015/09/central-heating-monitor

Dependencies:   EthernetInterfacePlusHostname NTPClient Onewire RdWebServer SDFileSystem-RTOS mbed-rtos mbed-src

Logger.cpp@20:7933076df5af, 2015-10-13 (annotated)

Committer:
Bobty
Date:
Tue Oct 13 18:35:20 2015 +0000
Revision:
20:7933076df5af
Parent:
12:a52996515063 
Improved logging and added a mutex to avoid clashes on SD card access

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Bobty 12:a52996515063 1 // Log to SD
Bobty 12:a52996515063 2 // Rob Dobson, 2015
Bobty 12:a52996515063 3
Bobty 12:a52996515063 4 #include "Logger.h"
Bobty 12:a52996515063 5
Bobty 20:7933076df5af 6 Logger::Logger(const char* eventLogFileName, const char* dataLogFileBase, Mutex &sdCardMutex) :
Bobty 20:7933076df5af 7 _sdCardMutex(sdCardMutex)
Bobty 12:a52996515063 8 {
Bobty 12:a52996515063 9 _eventLogFileName = eventLogFileName;
Bobty 12:a52996515063 10 _dataLogFileBase = dataLogFileBase;
Bobty 20:7933076df5af 11 _logDebugToFile = false;
Bobty 20:7933076df5af 12 _logDebugToConsole = false;
Bobty 12:a52996515063 13 }
Bobty 12:a52996515063 14
Bobty 12:a52996515063 15 void Logger::LogEvent(const char* format, ...)
Bobty 12:a52996515063 16 {
Bobty 12:a52996515063 17 char timeBuf[40];
Bobty 12:a52996515063 18 time_t seconds = time(NULL);
Bobty 12:a52996515063 19 strftime(timeBuf, sizeof(timeBuf), "%Y-%m-%d\t%H:%M:%S\t", localtime(&seconds));
Bobty 12:a52996515063 20
Bobty 20:7933076df5af 21 // Obtain lock to access sd card - if unable then abort the logging process
Bobty 20:7933076df5af 22 if (!_sdCardMutex.trylock())
Bobty 20:7933076df5af 23 return;
Bobty 20:7933076df5af 24
Bobty 20:7933076df5af 25 // Open file
Bobty 12:a52996515063 26 FILE* fp = fopen(_eventLogFileName, "a");
Bobty 12:a52996515063 27 if (fp == NULL)
Bobty 12:a52996515063 28 {
Bobty 12:a52996515063 29 printf ("Event Log ... Filename %s not found\r\n", _eventLogFileName);
Bobty 12:a52996515063 30 }
Bobty 12:a52996515063 31 else
Bobty 12:a52996515063 32 {
Bobty 12:a52996515063 33 fprintf(fp, timeBuf);
Bobty 12:a52996515063 34 va_list argptr;
Bobty 12:a52996515063 35 va_start(argptr, format);
Bobty 12:a52996515063 36 vfprintf(fp, format, argptr);
Bobty 12:a52996515063 37 va_end(argptr);
Bobty 12:a52996515063 38 fprintf(fp, "\r\n");
Bobty 12:a52996515063 39 fclose(fp);
Bobty 12:a52996515063 40 }
Bobty 20:7933076df5af 41
Bobty 20:7933076df5af 42 // Release lock on sd card
Bobty 20:7933076df5af 43 _sdCardMutex.unlock();
Bobty 20:7933076df5af 44
Bobty 12:a52996515063 45 }
Bobty 12:a52996515063 46
Bobty 12:a52996515063 47 // Utility function to log data
Bobty 12:a52996515063 48 void Logger::LogData(const char* format, ...)
Bobty 12:a52996515063 49 {
Bobty 12:a52996515063 50 char fileNameBuf[60];
Bobty 12:a52996515063 51 strcpy(fileNameBuf, _dataLogFileBase);
Bobty 12:a52996515063 52 time_t seconds = time(NULL);
Bobty 12:a52996515063 53 strftime(fileNameBuf+strlen(fileNameBuf), sizeof(fileNameBuf)-strlen(fileNameBuf), "Data_%Y%m%d.txt", localtime(&seconds));
Bobty 12:a52996515063 54
Bobty 20:7933076df5af 55 // Obtain lock to access sd card - if unable then abort the logging process
Bobty 20:7933076df5af 56 if (!_sdCardMutex.trylock())
Bobty 20:7933076df5af 57 return;
Bobty 20:7933076df5af 58
Bobty 12:a52996515063 59 FILE* fp = fopen(fileNameBuf, "a");
Bobty 12:a52996515063 60 if (fp == NULL)
Bobty 12:a52996515063 61 {
Bobty 12:a52996515063 62 printf ("Data Log ... Filename %s not found\r\n", _eventLogFileName);
Bobty 12:a52996515063 63 }
Bobty 12:a52996515063 64 else
Bobty 12:a52996515063 65 {
Bobty 12:a52996515063 66 va_list argptr;
Bobty 12:a52996515063 67 va_start(argptr, format);
Bobty 12:a52996515063 68 vfprintf(fp, format, argptr);
Bobty 12:a52996515063 69 va_end(argptr);
Bobty 12:a52996515063 70 fprintf(fp, "\r\n");
Bobty 12:a52996515063 71 fclose(fp);
Bobty 12:a52996515063 72 }
Bobty 20:7933076df5af 73
Bobty 20:7933076df5af 74 // Release lock on sd card
Bobty 20:7933076df5af 75 _sdCardMutex.unlock();
Bobty 12:a52996515063 76 }
Bobty 20:7933076df5af 77
Bobty 20:7933076df5af 78 // Utility function to log data
Bobty 20:7933076df5af 79 void Logger::LogDebug(const char* format, ...)
Bobty 20:7933076df5af 80 {
Bobty 20:7933076df5af 81 char fileNameBuf[60];
Bobty 20:7933076df5af 82 strcpy(fileNameBuf, _dataLogFileBase);
Bobty 20:7933076df5af 83 time_t seconds = time(NULL);
Bobty 20:7933076df5af 84 strftime(fileNameBuf+strlen(fileNameBuf), sizeof(fileNameBuf)-strlen(fileNameBuf), "Dbg_%Y%m%d.txt", localtime(&seconds));
Bobty 20:7933076df5af 85
Bobty 20:7933076df5af 86 // Log to file if enabled
Bobty 20:7933076df5af 87 if (_logDebugToFile)
Bobty 20:7933076df5af 88 {
Bobty 20:7933076df5af 89 // Obtain lock to access sd card - if unable then abort the logging process
Bobty 20:7933076df5af 90 if (_sdCardMutex.trylock())
Bobty 20:7933076df5af 91 {
Bobty 20:7933076df5af 92 FILE* fp = fopen(fileNameBuf, "a");
Bobty 20:7933076df5af 93 if (fp == NULL)
Bobty 20:7933076df5af 94 {
Bobty 20:7933076df5af 95 printf ("Data Log ... Filename %s not found\r\n", _eventLogFileName);
Bobty 20:7933076df5af 96 }
Bobty 20:7933076df5af 97 else
Bobty 20:7933076df5af 98 {
Bobty 20:7933076df5af 99 char timeBuf[40];
Bobty 20:7933076df5af 100 time_t seconds = time(NULL);
Bobty 20:7933076df5af 101 strftime(timeBuf, sizeof(timeBuf), "%Y-%m-%d\t%H:%M:%S\t", localtime(&seconds));
Bobty 20:7933076df5af 102 fprintf(fp, timeBuf);
Bobty 20:7933076df5af 103 va_list argptr;
Bobty 20:7933076df5af 104 va_start(argptr, format);
Bobty 20:7933076df5af 105 vfprintf(fp, format, argptr);
Bobty 20:7933076df5af 106 va_end(argptr);
Bobty 20:7933076df5af 107 fprintf(fp, "\r\n");
Bobty 20:7933076df5af 108 }
Bobty 20:7933076df5af 109 fclose(fp);
Bobty 20:7933076df5af 110
Bobty 20:7933076df5af 111 // Release lock on sd card
Bobty 20:7933076df5af 112 _sdCardMutex.unlock();
Bobty 20:7933076df5af 113 }
Bobty 20:7933076df5af 114 }
Bobty 20:7933076df5af 115
Bobty 20:7933076df5af 116 // Print to terminal if enabled
Bobty 20:7933076df5af 117 if (_logDebugToConsole)
Bobty 20:7933076df5af 118 {
Bobty 20:7933076df5af 119 va_list argptr;
Bobty 20:7933076df5af 120 va_start(argptr, format);
Bobty 20:7933076df5af 121 vprintf(format, argptr);
Bobty 20:7933076df5af 122 va_end(argptr);
Bobty 20:7933076df5af 123 printf("\r\n");
Bobty 20:7933076df5af 124 }
Bobty 20:7933076df5af 125 }