How to Deal with Broken Pipe Errors in Go: Ignore, Handle, or Extract?

Handling Broken Pipe Errors in Go

When working with network connections, it's common to encounter "broken pipe" errors. These occur when a remote host unexpectedly terminates the connection. In Go, these errors are typically returned from calls to io.Copy with a net.Conn (e.g., a TCP connection) as the destination.

Differentiating Broken Pipe Errors

To distinguish broken pipe errors from other types of errors, you can use the syscall package. The syscall.EPIPE constant represents the broken pipe error:

<code class="go">if err == syscall.EPIPE {
    // Handle the broken pipe error
}</code>

Extracting the Error Number

Sometimes, you may want to retrieve the error number associated with the broken pipe error. This can be done using a type assertion:

<code class="go">if e, ok := err.(syscall.Errno); ok {
    errno := uintptr(e)
    // Use the errno for error handling
}</code>

Ignoring Broken Pipe Errors

In some cases, you may want to ignore broken pipe errors. This can be useful when you expect the remote host to terminate the connection frequently. To ignore these errors, simply use the following code:

<code class="go">if err == syscall.EPIPE {
    // Ignore the error
}</code>

Additional Precautions

While handling broken pipe errors is usually straightforward, it's important to avoid relying on them too heavily. In some cases, a broken pipe error can indicate a more serious issue that requires investigation.

The above is the detailed content of How to Deal with Broken Pipe Errors in Go: Ignore, Handle, or Extract?. For more information, please follow other related articles on the PHP Chinese website!