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by edwardgeorge C Version: Current License: No License

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kandi X-RAY | picoev Summary

picoev is a C library. picoev has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

unofficial mirror of http://coderepos.org/share/browser/lang/c/picoev/

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Support

picoev has a low active ecosystem.

It has 6 star(s) with 4 fork(s). There are 2 watchers for this library.

It had no major release in the last 6 months.

picoev has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of picoev is current.

Quality

picoev has no bugs reported.

Security

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

License

picoev 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

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

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picoev Key Features

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picoev Examples and Code Snippets

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Community Discussions

Trending Discussions on picoev

If there is any pausing/sleeping or events in x86 assembly

C HTTP sockets closing prematurely and apparently giving read errors

QUESTION

If there is any pausing/sleeping or events in x86 assembly

Asked 2019-Mar-22 at 13:04

I am wondering if there is anything at the assembly level in x86-64 that allows you to sleep/wait, such that no instructions are run until the wait is done. I have seen the WAIT and PAUSE instructions, but I'm not sure they're related.

I would imagine it like this:

...

ANSWER

Answered 2019-Mar-22 at 08:48

The basic instruction to do what you want is HALT. It stops executing instructions until an interrupt is received.

A newer instruction that is similar is MWAIT. It waits like halt, but it also wakes up when a particular memory location is written (either by a different CPU core or by an I/O device). MWAIT also puts the CPU in a lower power state than halt does. The MONITOR instruction is used to specify the memory location that will cause MWAIT to wake up.

The other types of events you mentioned are software constructs. The CPU instructions don’t know about keyboards, files, or network devices.

MWAIT and HALT are privileged instructions. If an application wants to put the CPU to sleep, it generally needs to call the OS, so the OS can schedule some other process, if there is one ready to run.

Source https://stackoverflow.com/questions/55295648

QUESTION

C HTTP sockets closing prematurely and apparently giving read errors

Asked 2018-Apr-20 at 00:31

td;lr: trying to echo "Hello World" to an HTTP client but getting issues with the socket closing too soon and mysterious read errors from wrk benchmark tool.

I am trying to make a simple "Hello World" HTTP server with the picoev event loop library but the client/peer connection is dropping too soon and wrk benchmark tool returns read errors for whatever reason I'm not aware. This is the code I'm using:

...

ANSWER

Answered 2018-Apr-20 at 00:31

In this line of code:

write(fd, "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nContent-Length: 13\r\nConnection: close\r\n\r\nHello, world!", ret);

You use ret for the third parameter of your call to write(). This parameter is used to indicate to write() how many bytes should be written.

However, ret was used to store the result of a call to read(). Thus, there is no relationship between the value passed to write() and the size of the message you want to send.

Fix this by initializing ret with the length of the message you want to send.

Source https://stackoverflow.com/questions/49931924

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

Vulnerabilities

No vulnerabilities reported

Install picoev

You can download it from GitHub.

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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