code-for-blog | Code for various tutorials and programs | Learning library

by petercollingridge HTML Version: Current License: No License

X-Ray Key Features Code Snippets(3)Community Discussions(2)Vulnerabilities Install Support

kandi X-RAY | code-for-blog Summary

code-for-blog is a HTML library typically used in Tutorial, Learning applications. code-for-blog has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Code for various tutorials and programs I've written about on my blog

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Support

code-for-blog has a low active ecosystem.

It has 107 star(s) with 173 fork(s). There are 9 watchers for this library.

It had no major release in the last 6 months.

code-for-blog has no issues reported. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of code-for-blog is current.

Quality

code-for-blog has no bugs reported.

Security

code-for-blog has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

code-for-blog does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

code-for-blog releases are not available. You will need to build from source code and install.

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code-for-blog Key Features

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code-for-blog Examples and Code Snippets

reduce reducer for each action

javascript

Lines of Code : 18

License : No License

Copy

function reducer(state, action) {
  if (!state) {
    state = INITIAL_STATE;
  }

  switch (action.type) {
    case 'SET_NUMBERS': {
      return setNumbers(state, action.numbers);
    }
    case 'MULTIPLY': {
      return multiply(state, action.cons

Initialize a promise .

javascript

Lines of Code : 11

License : No License

Copy

function source(list) {
  var eventEmitter = new events.EventEmitter();
  lazy(list)
    .async(1000)
    .each(_.bind(eventEmitter.emit, eventEmitter, 'step'));
  return {
    on: function (cb) {
      eventEmitter.on('step', cb);
    }
  };
}

Source List .

javascript

Lines of Code : 10

License : No License

Copy

function source(list) {
  var lazy = require('lazy.js');

  var eventEmitter = new events.EventEmitter();
  lazy(list)
    .async(1000)
    .each(_.bind(eventEmitter.emit, eventEmitter, 'step'));

  return _.extend(eventEmitter, stepEmitter);
}

Community Discussions

Trending Discussions on code-for-blog

Measure overhead without pthread in C

Showing high and low PC of every program functions using DWARF library

QUESTION

Measure overhead without pthread in C

Asked 2019-Feb-27 at 10:52

I would like to share a test question I met recently and discuss about it:

Write a C program that roughly measures the overhead of a context switch >between the kernel and userspace on a UNIX/Linux system (without using the >pthread API). Please indicate the assumptions your rough estimation is based >on.

I would like to discuss with more advanced C programmers the different options of this problematic.

I have limited knowledge in C programming and I documented myself to provide an acceptable answer:

https://eli.thegreenplace.net/2018/measuring-context-switching-and-memory-overheads-for-linux-threads/

https://www.researchgate.net/post/How_can_I_measure_thread_creation_and_destruction

https://github.com/eliben/code-for-blog/blob/master/2018/threadoverhead/thread-pipe-msgpersec.c

I realized quickly, despite of my limited knowledge, the ambiguity of the question. Indeed, the question doesn't stipulate if an answer should be given in unit of time or memory.

I personally chose to develop my reasoning measuring time with the library time.h and a very simple snippet. Result should be divided by 1 000 000.

Does my answer make sense or am I completely missing the point ?

...

ANSWER

Answered 2019-Feb-27 at 10:52

Amazingly enough, the answer I provided above was accepted as correct in this test.

However to optimize the accuracy, we should rule out the "printf" method and go for either a syscall with invalid parameter as mentioned by Alex Hoppus or an empty method.

At the end, result should divided by 2 as mentioned by Alex Hoppus.

Source https://stackoverflow.com/questions/54551770

QUESTION

Showing high and low PC of every program functions using DWARF library

Asked 2017-Sep-13 at 02:35

I am trying to make this code work : https://github.com/eliben/code-for-blog/blob/master/2011/dwarf_get_func_addr.c It is extracted from a tutorial made by Eli Bendersky on http://eli.thegreenplace.net/2011/02/07/how-debuggers-work-part-3-debugging-information Unfortunately, low pc and high pc return always the same address for almost every function:

...

ANSWER

Answered 2017-Sep-13 at 02:35

The code in dwarf_get_func_addr.c has at least one bug: it assumes that every function has DW_AT_low_pc and DW_AT_high_pc attributes, and will print uninitialized values if that is not the case.

You should initialize lowpc = highpc = -1; on line 42, so as not to print unintialized values.

Other than that, it's impossible to help you without access to your lulesh_normal binary.

You should do readelf -wi lulesh_normal, and then step through list_func_in_die in a debugger, and compare what the program is reading there with the output from readelf -- they should match one to one. If they don't, your version of libdwarf is possibly buggy.

Source https://stackoverflow.com/questions/46170156

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

Vulnerabilities

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Install code-for-blog

You can download it from GitHub.

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