https://github.com/illarion/bufpipe

Buffered io.Pipe
https://github.com/illarion/bufpipe

buffered-reader buffered-writer buffering fanout go golang io pipe reader

Last synced: 3 months ago
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Buffered io.Pipe

• Host: GitHub
• URL: https://github.com/illarion/bufpipe
• Owner: illarion
• License: mit
• Created: 2022-09-23T20:20:04.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2024-10-04T12:57:05.000Z (over 1 year ago)
• Last Synced: 2025-02-24T22:11:19.112Z (11 months ago)
• Topics: buffered-reader, buffered-writer, buffering, fanout, go, golang, io, pipe, reader
• Language: Go
• Homepage:
• Size: 10.7 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# bufpipe

Simple golang implementation of the buffered io.Pipe replacement

## Usage

```go

package main

import (

    "fmt"

    "io"

    "os"

    "time"

    "github.com/illarion/bufpipe/v3"

)

func main() {

    // Create a new buffered pipe

    reader, writer := bufpipe.Pipe(bufpipe.Options{

        MaxSize: 1024,

        BlockWritesUntilFirstReadTimeout: time.Second * 5,

		BlockWritesOnFullBufferTimeout: time.Second * 5,

    })

    // Start a goroutine that writes to the pipe

    go func() {

        defer writer.Close()

        for i := 0; i < 10; i++ {

            fmt.Fprintf(writer, "Hello, world! %d\n", i)

            time.Sleep(time.Second)

        }

    }()

    // Read from the pipe

    io.Copy(os.Stdout, reader)

}

```

## Options

- `MaxSize` - the maximum size of the buffer in bytes. Default is 0 - no limit.

- `BlockWritesUntilFirstReadTimeout` - if set, the writer will block until the first read from the reader or the timeout is reached. Default is 0 - no blocking, write immediately.

- `BlockWritesOnFullBufferTimeout` - if set, the writer will block until the buffer is not full or the timeout is reached. Default is 0 - immediately return `ErrBufferFull` if the buffer is full.

## Errors

`ErrBufferFull` - returned when reader is slower than writer and there is no place to write

`ErrClosedPipe` - returned if either reader or writer side is closed.

`ErrFirstReadTimeout` - returned if the `BlockWritesUntilFirstReadTimeout` is reached.

## License

See the [LICENSE](LICENSE) file for license rights and limitations (MIT).