picoev | a tiny , lightning fast event loop for network applications | HTTP library

 by   kazuho C Version: Current License: No License

kandi X-RAY | picoev Summary

kandi X-RAY | picoev Summary

picoev is a C library typically used in Networking, HTTP applications. picoev has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

a tiny, lightning fast event loop for network applications. the text below is copied from the [original publication] i am sure many programmers writing network applications have their own abstracting layers hiding the differences between various i/o multiplex apis, like select(2), poll(2), epoll(2), …​ and of course, i am one among them. while writing mycached ([see mycached: memcached protocol support for mysql for more information] i was at first considering of using [libev] for multiplexing socket i/os. [libevent] was not an option since it does not (yet) provide multithreading support. but it was a great pain for me to learn how to use libev. i do not mean that its is an ugly product. in fact, i think that it is a very well written, excellent library. however, for me it was too much a boring task to learn how the things are abstracted, already being familiar with the problems it tries to hide. so instead i thought it might be a good occasion to write my own library that could be used in any programs i may write in the future. the result is picoev, and it is faster than libevent or libev! the benchmark used is a re-modified version taken from
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            kandi-support Support

              picoev has a low active ecosystem.
              It has 328 star(s) with 41 fork(s). There are 24 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 0 open issues and 3 have been closed. On average issues are closed in 376 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of picoev is current.

            kandi-Quality Quality

              picoev has 0 bugs and 0 code smells.

            kandi-Security Security

              picoev has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              picoev code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              picoev does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

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

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            picoev Key Features

            No Key Features are available at this moment for picoev.

            picoev Examples and Code Snippets

            No Code Snippets are available at this moment for picoev.

            Community Discussions

            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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            https://github.com/kazuho/picoev.git

          • CLI

            gh repo clone kazuho/picoev

          • sshUrl

            git@github.com:kazuho/picoev.git

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