qlock | Word clock powered by raspberrypi and python with mqtt

by perryrh0dan Python Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | qlock Summary

qlock is a Python library typically used in Internet of Things (IoT), Raspberry Pi applications. qlock has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. However qlock build file is not available. You can download it from GitHub.

Word clock powered by raspberrypi and python with mqtt support

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Quality

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Support

qlock has a low active ecosystem.

It has 8 star(s) with 2 fork(s). There are 2 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 0 have been closed. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of qlock is current.

Quality

qlock has 0 bugs and 0 code smells.

Security

qlock has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

qlock code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

qlock is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

qlock releases are not available. You will need to build from source code and install.

qlock has no build file. You will be need to create the build yourself to build the component from source.

Installation instructions, examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi has reviewed qlock and discovered the below as its top functions. This is intended to give you an instant insight into qlock implemented functionality, and help decide if they suit your requirements.

Called when a message is received
Pause the process
Clear the LED
Refreshes the highlights
Run the loop
Display a special character
Return the text of the special date
Updates the LED sensor
Start new LED
Returns a set of the positions of the leds
Drop in the target LEDs
Return the x y position of the LED
Sets the pixels from a list of LEDs
Set the LED on the LED
Called when a client is connected

Get all kandi verified functions for this library.

qlock Key Features

No Key Features are available at this moment for qlock.

qlock Examples and Code Snippets

No Code Snippets are available at this moment for qlock.

Community Discussions

Trending Discussions on qlock

Segmentation Fault during runtime elaboration: Ada

incorrect checksum for freed object - object was probably modified after being freed. how can I fix it?

two condition variables attached to the same lock, different behaviors in python2 and python3

QUESTION

Segmentation Fault during runtime elaboration: Ada

Asked 2019-May-23 at 20:26

My program is seg-faulting in the package elaboration section. I declare a a bunch of variables in a block in the body. They are all records with a QLOCK, First ID Number, Last ID Number, and a data array. All different types because the data and ID range is slightly different for each record.

The types are all defined in the same package spec (SMO_Types) but only one of them causes a seg fault.

Ada catches this segfault and raises a storage error so the output looks like this

raised STORAGE_ERROR : s-intman.adb:136 explicit raise

I tried to force elaboration order by putting Elaborate_All(SMO_Types);

It still had a seg fault during runtime.

When I comment out that declaration and any uses of that single variable it works fine.

...

ANSWER

Answered 2019-May-21 at 19:15

Your type definitions are still incomplete. We can only make broad assumptions about your types.

Source https://stackoverflow.com/questions/56227629

QUESTION

incorrect checksum for freed object - object was probably modified after being freed. how can I fix it?

Asked 2019-Jan-05 at 10:08

While running the code I am getting the error: ds(57203,0x70000fba3000) malloc: * error for object 0x7ff875402848: incorrect checksum for freed object - object was probably modified after being freed. * set a breakpoint in malloc_error_break to debug

Sometimes it works, sometimes it crashes after trying to malloc a new node (see createNode function) so I suspect the error is coming from there.

What am I doing wrong? How can I fix it?

I've tried debugging the code and changing several mallocs but couldn't fix the problem.

As I told earlier, I suspect the error is in createNode function.

...

ANSWER

Answered 2019-Jan-05 at 10:08

The problem is you are allocating size of searchTerm but copying the path.

The chances of length of path and length of searchTerm is same is less. Thus accessing out of bound for str3 and invoking undefined behavior.

Source https://stackoverflow.com/questions/54050539

QUESTION

two condition variables attached to the same lock, different behaviors in python2 and python3

Asked 2018-Dec-14 at 12:15

I am trying to write the classical producer-consumer program in python. Here are the c code that I referenced: http://faculty.ycp.edu/~dhovemey/spring2011/cs365/lecture/lecture16.html https://web.stanford.edu/~ouster/cgi-bin/cs140-spring14/lecture.php?topic=locks

After pip install colored and pip3 install colored I run this program on lubuntu 18.04. When running as "python3 producer-consumer.py" (i.e. running with python 3.6.7) the program hangs after a few iterations either at

...

ANSWER

Answered 2018-Dec-14 at 12:15

The main issue is your code is that you don't check that the list isn't empty / full after a thread has been notified. This can be a problem in the following situation:

c1 and c2 are consumer threads, p1 is a producer thread. The queue is empty at the beginning. c1 is awake (currently in the last line time.sleep...) while c2 is waiting to be notified (in line while item_ok.wait():.

p1 adds an item to the queue and calls item_ok.notify()
c1 finishes waiting and acquires the lock
c2 gets notified and tries to get the lock
c1 consumes the item from the queue and releases the lock
c2 acquires the lock and tries to pop from an empty queue

The solution

Instead of calling .wait() in the while condition (which is non-sensical because it always returns None on Python 2 and always True on Python 3.2+, see here), call .wait() in the while loop body and put the condition whether the queue isn't full / empty in the while loop condition:

Source https://stackoverflow.com/questions/53778588

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install qlock

Run following command to install all dependencies.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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