Backend DevelopmentGolangHow Does Data Delivery Work in Go's Unbuffered Channels with Multiple Receivers?How Does Data Delivery Work in Go's Unbuffered Channels with Multiple Receivers?
Unbuffered Channels with Multiple Receivers: Determining Data Delivery
In goroutines, unbuffered channels implement a blocking mechanism for receivers until data becomes available. However, the behavior of blocking in the presence of multiple receivers on the same channel remains unclear.
Data Delivery Mechanism
Upon sending a value to a channel with multiple receivers, the language specifies that:
- A single random (non-deterministic) receiver will receive the data and unblock.
This means that the receiver that ultimately receives the data and unblocks is selected randomly, without any specific ordering or preference. This ensures fairness while eliminating the possibility of starvation for any particular receiver.
Language Specification Explanation
The specification of the select statement sheds light on this behavior:
- Communications are evaluated upon entry into the select statement.
- If multiple communications are viable, one is chosen randomly for execution.
- The chosen communication is executed, and the left-hand side expressions of any receiver statements are evaluated and assigned the received value.
In the case of unbuffered channels with multiple receivers, the first communication that becomes available after the random selection will be the one that receives the data and unblocks.
Conclusion
For unbuffered channels with multiple receivers, the delivery of data to a receiver is random and non-deterministic, ensuring fairness among receivers without any specific ordering or preference.
The above is the detailed content of How Does Data Delivery Work in Go's Unbuffered Channels with Multiple Receivers?. For more information, please follow other related articles on the PHP Chinese website!
Learn Go String Manipulation: Working with the 'strings' PackageMay 09, 2025 am 12:07 AMGo's "strings" package provides rich features to make string operation efficient and simple. 1) Use strings.Contains() to check substrings. 2) strings.Split() can be used to parse data, but it should be used with caution to avoid performance problems. 3) strings.Join() is suitable for formatting strings, but for small datasets, looping = is more efficient. 4) For large strings, it is more efficient to build strings using strings.Builder.
Go: String Manipulation with the Standard 'strings' PackageMay 09, 2025 am 12:07 AMGo uses the "strings" package for string operations. 1) Use strings.Join function to splice strings. 2) Use the strings.Contains function to find substrings. 3) Use the strings.Replace function to replace strings. These functions are efficient and easy to use and are suitable for various string processing tasks.
Mastering Byte Slice Manipulation with Go's 'bytes' Package: A Practical GuideMay 09, 2025 am 12:02 AMThebytespackageinGoisessentialforefficientbyteslicemanipulation,offeringfunctionslikeContains,Index,andReplaceforsearchingandmodifyingbinarydata.Itenhancesperformanceandcodereadability,makingitavitaltoolforhandlingbinarydata,networkprotocols,andfileI
Learn Go Binary Encoding/Decoding: Working with the 'encoding/binary' PackageMay 08, 2025 am 12:13 AMGo uses the "encoding/binary" package for binary encoding and decoding. 1) This package provides binary.Write and binary.Read functions for writing and reading data. 2) Pay attention to choosing the correct endian (such as BigEndian or LittleEndian). 3) Data alignment and error handling are also key to ensure the correctness and performance of the data.
Go: Byte Slice Manipulation with the Standard 'bytes' PackageMay 08, 2025 am 12:09 AMThe"bytes"packageinGooffersefficientfunctionsformanipulatingbyteslices.1)Usebytes.Joinforconcatenatingslices,2)bytes.Bufferforincrementalwriting,3)bytes.Indexorbytes.IndexByteforsearching,4)bytes.Readerforreadinginchunks,and5)bytes.SplitNor
Go encoding/binary package: Optimizing performance for binary operationsMay 08, 2025 am 12:06 AMTheencoding/binarypackageinGoiseffectiveforoptimizingbinaryoperationsduetoitssupportforendiannessandefficientdatahandling.Toenhanceperformance:1)Usebinary.NativeEndianfornativeendiannesstoavoidbyteswapping.2)BatchReadandWriteoperationstoreduceI/Oover
Go bytes package: short reference and tipsMay 08, 2025 am 12:05 AMGo's bytes package is mainly used to efficiently process byte slices. 1) Using bytes.Buffer can efficiently perform string splicing to avoid unnecessary memory allocation. 2) The bytes.Equal function is used to quickly compare byte slices. 3) The bytes.Index, bytes.Split and bytes.ReplaceAll functions can be used to search and manipulate byte slices, but performance issues need to be paid attention to.
Go bytes package: practical examples for byte slice manipulationMay 08, 2025 am 12:01 AMThe byte package provides a variety of functions to efficiently process byte slices. 1) Use bytes.Contains to check the byte sequence. 2) Use bytes.Split to split byte slices. 3) Replace the byte sequence bytes.Replace. 4) Use bytes.Join to connect multiple byte slices. 5) Use bytes.Buffer to build data. 6) Combined bytes.Map for error processing and data verification.
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
SublimeText3 Mac version
God-level code editing software (SublimeText3)
SublimeText3 English version
Recommended: Win version, supports code prompts!
SublimeText3 Linux new version
SublimeText3 Linux latest version
