https://github.com/ancientlore/ctxmap

Package ctxmap implements a registry for global context.Context for use in web applications.
https://github.com/ancientlore/ctxmap

context golang

Last synced: 21 days ago
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Package ctxmap implements a registry for global context.Context for use in web applications.

• Host: GitHub
• URL: https://github.com/ancientlore/ctxmap
• Owner: ancientlore
• License: other
• Created: 2015-06-12T15:14:27.000Z (about 11 years ago)
• Default Branch: master
• Last Pushed: 2023-02-04T16:46:50.000Z (over 3 years ago)
• Last Synced: 2025-01-13T04:42:28.002Z (over 1 year ago)
• Topics: context, golang
• Language: Go
• Size: 9.77 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
ctxmap

=======

[![Go Reference](https://pkg.go.dev/badge/github.com/ancientlore/ctxmap.svg)](https://pkg.go.dev/github.com/ancientlore/ctxmap)

Package ctxmap implements a registry for global context.Context for use in web applications.

Based on work from github.com/gorilla/context, this package simplifies the storage by mapping

a pointer to an http.Request to a context.Context. This allows applications to use Google's

standard context mechanism to pass state around their web applications, while sticking to

the standard http.HandlerFunc implementation for their middleware implementations.

As a result of the simplification, the runtime overhead of the package is reduced by 35 to 50

percent in my tests. However, it would be common to store a map of values or a pointer to

a structure in the Context object, and my testing does not account for time taken beyond

calling Context.Value().

| Benchmark                    | Readers | Writers | Iterations | Map Ops | context   | ctxmap    |

|:-----------------------------|--------:|--------:|-----------:|--------:|----------:|----------:|

| BenchmarkMutexSameReadWrite1 | 1       | 1       | 32         | 64      | 208.91 ns | 102.63 ns |

| BenchmarkMutexSameReadWrite2 | 2       | 2       | 32         | 128     | 211.27 ns | 103.97 ns |

| BenchmarkMutexSameReadWrite4 | 4       | 4       | 32         | 256     | 216.21 ns | 101.54 ns |

| BenchmarkMutex1              | 2       | 8       | 32         | 320     | 252.26 ns | 92.62 ns  |

| BenchmarkMutex2              | 16      | 4       | 64         | 1280    | 166.85 ns | 108.31 ns |

| BenchmarkMutex3              | 1       | 2       | 128        | 384     | 221.67 ns | 78.47 ns  |

| BenchmarkMutex4              | 128     | 32      | 256        | 40960   | 179.70 ns | 107.31 ns |

| BenchmarkMutex5              | 1024    | 2048    | 64         | 196608  | 233.41 ns | 90.10 ns  |

| BenchmarkMutex6              | 2048    | 1024    | 512        | 1572864 | 183.25 ns | 92.33 ns  |