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  |


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github.com/ancientlore/ctxmap

ctxmap

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Bin script confusion

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Chronological version anomaly

Project maintainer's SSH key has been compromised.

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Compromised SSH key

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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

github.com/ancientlore/ctxmap

ctxmap

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