How Does Golang Ensure Concurrent Write Operations to a Net.Conn Object are Safe and Efficient?-Golang-php.cn

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How Does Golang Ensure Concurrent Write Operations to a Net.Conn Object are Safe and Efficient?

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Oct 30, 2024 am 03:00 AM

How Does Golang Ensure Concurrent Write Operations to a Net.Conn Object are Safe and Efficient?

Simultaneous Writes to Net.Conn in Golang

Multiple Goroutines can concurrently issue Write calls to a shared net.Conn object. However, concerns arise regarding the handling of partially completed Writes.

Lock Acquisition for Writes

In the unix implementation, calls to Write employ a lock to prevent simultaneous writes. This lock acquisition appears to undermine the purpose of concurrent Write calls from multiple Goroutines.

Handling Partially Completed Writes

In the unix implementation, the only scenario where byteSent

WSASend on Windows

The Windows implementation lacks this loop. Instead, it relies on WSASend, which must provide similar guarantees to handle partial Writes and avoid blocking scenarios.

Questions Answered

Lock acquisition is not required for Writes to a net.Conn.
The purpose of lock acquisition in the unix Write implementation is to prevent concurrent writes without introducing blocking.
The unix Write implementation handles partial Writes by retrying until the entire buffer is written.
The WSASend function on Windows handles partial Writes in a manner similar to the loop in the unix Write implementation.

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