CoffeePi Coffee machine control for Raspberry Pi

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Functions | Variables
coffee.cpp File Reference
`#include <stdio.h>`
`#include <stdlib.h>`
`#include <string.h>`
`#include <errno.h>`
`#include <stdint.h>`
`#include <wiringPi.h>`
`#include <pthread.h>`
`#include <unistd.h>`
`#include <iostream>`
`#include <csignal>`
`#include <time.h>`
`#include <ctime>`
`#include "coffee.h"`
`#include "hal.h"`
`#include "logger.h"`
`#include "timer.h"`
`#include "database.h"`
`#include "display.h"`

## Functions
void * | coffeeThread (void *threadid)
| Thread for the finite state machine It represents the current state of the machine and handles signals coming from the pressure control, buttons, the brew switch and the proximity sensor. More...
void | coffeeHandler (int signum, siginfo_t *siginfo, void *context)
| Handler for the Signal send to this thread It saves the type of signal received and tracks the time between a push and release event of up to 4 signals The time is stored in the HalEvent variable when a release event is received. More...
int | getSigValue (void)
| returns the Signal value from the last received Signal and clears the variable More...
bool | SigValueEmpty (void)
void | changeState (int newState)
| Changes the state of the machine to newState prints the change to the logger. More...
int | getState (void)
| Returns the current state of the FSM. More...
void | brewTimeHandler (void)
| Counter for the brew time refresh every 200ms. More...
void | coffeeTerminate (void)
| handles program termination More...
void | coffeeBrew (void)
| Brewing process. More...
void | coffeeIncreaseBrewCounter (void)
void | coffeeIncreaseHeatingTime (uint64_t heatingTime)

## Variables
int | state
int | sigValue
int | brewTime
timer brewTimer & | brewTimeHandler
clock_t | beginHeating
clock_t | endHeating
double | heatingTime

## Function Documentation

void brewTimeHandler | ( | void |  | ) |

Counter for the brew time refresh every 200ms.

void changeState | ( | int | newState | ) |

Changes the state of the machine to newState prints the change to the logger.

Parameters

  newState |

void coffeeBrew | ( | void |  | ) |

Brewing process.

void coffeeHandler | ( | int | signum,
|  | siginfo_t * | siginfo,
|  | void * | context
| ) |  |

Handler for the Signal send to this thread It saves the type of signal received and tracks the time between a push and release event of up to 4 signals The time is stored in the HalEvent variable when a release event is received.

Parameters

  signum |
  siginfo |
  context |

void coffeeIncreaseBrewCounter | ( | void |  | ) |

void coffeeIncreaseHeatingTime | ( | uint64_t | heatingTime | ) |

void coffeeTerminate | ( | void |  | ) |

handles program termination

void* coffeeThread | ( | void * | threadid | ) |

Thread for the finite state machine It represents the current state of the machine and handles signals coming from the pressure control, buttons, the brew switch and the proximity sensor.

Parameters

  threadid | the ID of the thread

int getSigValue | ( | void |  | ) |

returns the Signal value from the last received Signal and clears the variable

Returns
  value sent with the last signal

int getState | ( | void |  | ) |

Returns the current state of the FSM.

bool SigValueEmpty | ( | void |  | ) |

## Variable Documentation

clock_t beginHeating

int brewTime

timer brewTimer& brewTimeHandler

clock_t endHeating

double heatingTime

int sigValue

int state