Spreads.Unsafe | Unsafe package with additional methods

by Spreads C++ Version: Current License: MIT

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kandi X-RAY | Spreads.Unsafe Summary

Spreads.Unsafe is a C++ library. Spreads.Unsafe has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

This library adds several methods to System.Runtime.CompilerServices.Unsafe [package] that are used in [Spreads library] to get the maximum performance. It could be compiled from a working repo of [corefx] if placed alogside with S.R.CS.U folder. The added methods emit a constrained call to instance methods of known interfaces on instances of a generic type T without a type constraint where T : IKnownInterface.

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Support

Spreads.Unsafe has a low active ecosystem.

It has 8 star(s) with 0 fork(s). There are 4 watchers for this library.

It had no major release in the last 6 months.

There are 0 open issues and 1 have been closed. On average issues are closed in 210 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of Spreads.Unsafe is current.

Quality

Spreads.Unsafe has no bugs reported.

Security

Spreads.Unsafe has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

Spreads.Unsafe 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

Spreads.Unsafe 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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Spreads.Unsafe Key Features

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Spreads.Unsafe Examples and Code Snippets

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Community Discussions

Trending Discussions on Spreads.Unsafe

CLI calli on x64 calling convention

QUESTION

CLI calli on x64 calling convention

Asked 2018-Sep-22 at 20:48

Calli opcode requires a calling convention. By default it is stdcall, while extern "C" in native libraries uses cdecl.

JIT recently allowed to inline methods with calli, but only with default calling convention. When I call a method with calli without unmanaged cdecl it works on x64 and performance is 58% faster than DllImport and 2.2x faster than unmanaged function pointer. (on netcoreapp2.1, on net471 the difference is bigger: 82% and 5.5x ) When I run a method with calli unmanaged cdecl, performance is on par with DllImport (around 1% slower).

I have read that on x64 there is no longer a mess with stdcall vs cdecl and all methods use cdecl (or fastcall, seen that in another place, cannot find a link). The difference only applies to x86, where my call without unmanaged cdecl does indeed crash the app with segfault.

The method in question is the following. For tests I use noop native method only to measure native call overhead.

...

ANSWER

Answered 2018-Sep-22 at 20:48

The answer is, it is not safe. See this discussion at dotnet/coreclr: https://github.com/dotnet/coreclr/issues/19997

Source https://stackoverflow.com/questions/52273315

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Vulnerabilities

No vulnerabilities reported

Install Spreads.Unsafe

You can download it from GitHub.

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