rio | pure rust io_uring library , built on libc , thread & async

 by   spacejam Rust Version: Current License: No License

kandi X-RAY | rio Summary

kandi X-RAY | rio Summary

rio is a Rust library. rio has no bugs, it has no vulnerabilities and it has medium support. You can download it from GitHub.

bindings for io_uring, the hottest thing to happen to linux IO in a long time. rio aims to leverage Rust's compile-time checks to be misuse-resistant compared to io_uring interfaces in other languages, but users should beware that use-after-free bugs are still possible without unsafe when using rio. Completion borrows the buffers involved in a request, and its destructor blocks in order to delay the freeing of those buffers until the corresponding request has completed; but it is considered safe in Rust for an object's lifetime and borrows to end without its destructor running, and this can happen in various ways, including through std::mem::forget. Be careful not to let completions leak in this way, and if Rust's soundness guarantees are important to you, you may want to avoid this crate. This is intended to be the core of sled's writepath. It is built with a specific high-level application in mind: a high performance storage engine and replication system. io_uring is the biggest thing to happen to the linux kernel in a very long time. It will change everything. Anything that uses epoll right now will be rewritten to use io_uring if it wants to stay relevant. It started as a way to do real async disk IO without needing to use O_DIRECT, but its scope has expanded and it will continue to support more and more kernel functionality over time due to its ability to batch large numbers different syscalls. In kernel 5.5 support is added for more networking operations like accept(2), sendmsg(2), and recvmsg(2). In 5.6 support is being added for recv(2) and send(2). io_uring has been measured to dramatically outperform epoll-based networking, with io_uring outperforming epoll-based setups more and more under heavier load. I started rio to gain an early deep understanding of this amazing new interface, so that I could use it ASAP and responsibly with sled.
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            kandi-support Support

              rio has a medium active ecosystem.
              It has 844 star(s) with 40 fork(s). There are 37 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 21 open issues and 11 have been closed. On average issues are closed in 37 days. There are 6 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of rio is current.

            kandi-Quality Quality

              rio has no bugs reported.

            kandi-Security Security

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

            kandi-License License

              rio 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

              rio releases are not available. You will need to build from source code and install.
              Installation instructions are not available. Examples and code snippets are available.

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            rio Key Features

            No Key Features are available at this moment for rio.

            rio Examples and Code Snippets

            No Code Snippets are available at this moment for rio.

            Community Discussions

            QUESTION

            rioxarray (or xarray) converts spatial_ref coordinate to variable after reprojecting and saving with to_netcdf?
            Asked 2021-Jun-13 at 15:12

            I have a "dataarray" which I am trying to reproject it using rioxarray. However after reprojection when I use xarray.to_netcdf, the saved file is a dataset where the "spatial_ref" coordinate converted to a variable. I am not sure if that is xarray or rioxarray.reprojection causes this behavior. Here are some codes that show the issue:

            ...

            ANSWER

            Answered 2021-Apr-29 at 17:43

            The issue was I did not set decode_coords="all" when I used xarray.open_dataarray. With the following everything looks ok:

            Source https://stackoverflow.com/questions/67306598

            QUESTION

            Combining 2 Unequal Length Date Pandas
            Asked 2021-Jun-11 at 12:56

            i have 2 unequal length pandas that I am trying to combine based on their matching hour, month, year, and plant_name. I'm not sure whether merge/concat/join is most efficient or uses less memory since my actual dataset is very large and I'm getting unexpected results with attempts like shown at the bottom here. As an example, my data looks like this for dataframe 1 (df1):

            ...

            ANSWER

            Answered 2021-Jun-11 at 12:56

            What you are looking for is an inner-join here. Also you need to add year, month, day and hour to the join-key. The following should give you the right answer:

            Source https://stackoverflow.com/questions/67936532

            QUESTION

            Binding multiple csvs in R to output to a graph in ggplot2
            Asked 2021-Jun-10 at 02:18

            This is an example of my data:

            ...

            ANSWER

            Answered 2021-Jun-10 at 02:18

            I wasn't able to use your example data (please use dput(head(finalTable)) instead of deparse), but here is one potential solution using the data at the beginning of your question:

            Source https://stackoverflow.com/questions/67912864

            QUESTION

            How can one add a ">" symbol while producing survival curves in R?
            Asked 2021-Jun-08 at 16:56

            Is there a way to add the greater than symbol ">" in ggsurvplot? in the figure legend?

            Here is my sample dataset and code for this problem:

            ...

            ANSWER

            Answered 2021-Jun-08 at 16:51

            It's worth reviewing what's actually happening. The ggtext function attempts to parse the labels using tags and the blockquote tag (>) is not supported. So we need some way to escape the tag. I couldn't find a documented way.

            It's a bit of a hack, but I've added a zero width space unicode character (\u200B) before the > to break the tag:

            Source https://stackoverflow.com/questions/67890410

            QUESTION

            Using grep or similar to parse out all bracketed placeholders in string
            Asked 2021-Jun-08 at 07:06

            I have a folder with several text files that may each contain special placeholder values. I need a bash script that allows me to find and list all occurences of such placeholders. We know that it is a placeholder based a specific regular expression "<<__.*__>>".

            Let's take two example files:

            ./somefolder/a.yaml

            ...

            ANSWER

            Answered 2021-Jun-07 at 19:13

            You can use non-greedy regex.

            Source https://stackoverflow.com/questions/67877360

            QUESTION

            How to update an object in a nested array inside another nested array in MongoDB
            Asked 2021-Jun-07 at 11:54

            In mongo DB I have a collection dealing with buildings ("centros") that contain devices ("dispositivos") and those devices contain sensors ("sensores"). I am trying to update one of those sensors. Buildings are identified by their "_id", devices by their "uid" and sensors by their "variable name" ("variable"). I have already tried following some examples found on StackOverflow, but have not succeeded.

            This is my approximation:

            ...

            ANSWER

            Answered 2021-Jun-07 at 10:04

            Each array filter should be its own object in the array, like

            Source https://stackoverflow.com/questions/67868823

            QUESTION

            Rasterio " does not exist in the file system, and is not recognized as a supported dataset name."
            Asked 2021-Jun-03 at 14:53

            ANSWER

            Answered 2021-Jun-03 at 01:54

            QUESTION

            Databricks - export dataset to a raster file in DBFS using rioxarray
            Asked 2021-May-31 at 12:25

            I am trying to follow simple example in rioxarray documentation to export a dataset to a raster file in DBFS.

            Install the library:

            ...

            ANSWER

            Answered 2021-May-31 at 12:25

            I suspect that this is caused by the limitations of the DBFS local file API, although the library doesn't throw the exception - just simply don't create a file.

            The solution would be to output raster to the local disk, and copy file into the DBFS using dbutils.fs.cp:

            Source https://stackoverflow.com/questions/67763373

            QUESTION

            Can't save the ontology with NTriples (OWLAPI)
            Asked 2021-May-28 at 12:08

            I tried to save my ontology as NTriples format using owlapi. This error appear when I try to save my ontology:

            ...

            ANSWER

            Answered 2021-May-26 at 11:41

            The exception is a bug (please report it, as recommended in the comment), however note that those are not legal OWL axioms. The syntax and semantic specification shows sameAs as requiring two arguments at least.

            (Consider that the axiom is supposed to allow definition of synonym individuals; one argument only offers no new information)

            If the axioms are generated by an inferred axiom generator, looks like that code has a bug as well.

            Source https://stackoverflow.com/questions/67697302

            QUESTION

            Drop Duplicates on dataframe on value inside dictionary in column
            Asked 2021-May-27 at 01:51

            I am having problems to use the proper pandas function to drop rows in dataframe of duplicate value of a key inside a dict in one of its column lugar.

            This is the data of the dataframe:

            ...

            ANSWER

            Answered 2021-May-27 at 01:28

            I suggest you should extract new column from lugar column like below code.

            Source https://stackoverflow.com/questions/67714397

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

            Vulnerabilities

            No vulnerabilities reported

            Install rio

            You can download it from GitHub.
            Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.

            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/spacejam/rio.git

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            gh repo clone spacejam/rio

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            git@github.com:spacejam/rio.git

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