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fivdi / pigpio

Fast GPIO, PWM, servo control, state change notification and interrupt handling with Node.js on the Raspberry Pi
MIT License
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sigHandler: Unhandled signal 2, terminating #127

Closed kiko0217 closed 3 years ago

kiko0217 commented 3 years ago

what is this problem? what is cause?

thank you for your answer

fivdi commented 3 years ago

The message

sigHandler: Unhandled signal 2, terminating

is printed by the pigpio C library signal handler here

Signal 2 or SIGINT is the "terminal interrupt" signal that is sent when the user types the terminal interrupt character which is normally ctrl+c.

I guess you hit ctrl+c to terminate the application. If this is the case all is ok and there isn't a problem. To the best of my knowledge, the pigpio C library can't be configured to prevent it from handling SIGINT the way it does.

fivdi commented 3 years ago

To the best of my knowledge nothing needs to be changed in pigpio here, so I'll go ahead and close the issue.

lwestfall commented 2 years ago

For those of us who ended up here wanting to implement their own signal handler, make sure you do your signal() call AFTER you call gpioInitialise(). This will override the pigpio handler.

fivdi commented 2 years ago

For those of us who ended up here wanting to implement their own signal handler, make sure you do your signal() call AFTER you call gpioInitialise(). This will override the pigpio handler.

For further information and an example see the documentation for the initialize() method.

darshitagrawal commented 2 years ago

I am working on interfacing dht11 with Raspberry Pi. My code is as per this link: https://github.com/jimstudt/dht11-pigpio/blob/master/dht11-pigpio.c. My concern is when I press Ctrl+C, I get the error "Unhandled Signal 2, terminating" and after that I cannot write further commands on my linux terminal. Can anyone tell me what should I do?

Screenshot 2022-04-06 205226

fivdi commented 2 years ago

I am working on interfacing dht11 with Raspberry Pi. My code is as per this link: https://github.com/jimstudt/dht11-pigpio/blob/master/dht11-pigpio.c. My concern is when I press Ctrl+C, I get the error "Unhandled Signal 2, terminating" and after that I cannot write further commands on my linux terminal. Can anyone tell me what should I do?

Screenshot 2022-04-06 205226

@darshitagrawal This repository is the Node.js (JavaScript) pigpio repository. Support for the pigpio C library is available at https://github.com/joan2937/pigpio