Maintaining exclusive file access is crucial to prevent conflicts and data corruption when working with sensitive files. In .NET, the FileAccess.ReadWrite and FileShare.None flags provide exclusive read and write access to a file. How can we achieve similar functionality in Go?
After researching various documentation, a suitable Go package was discovered for this purpose:
https://github.com/juju/fslock
This package allows for cross-process locking on files based on file locks. Let's explore its implementation:
Here's a basic example of using fslock:
package main import ( "fmt" "time" "github.com/juju/fslock" ) func main() { lock := fslock.New("../lock.txt") lockErr := lock.TryLock() if lockErr != nil { fmt.Println("Failed to acquire lock:", lockErr) return } fmt.Println("Acquired the lock") time.Sleep(1 * time.Minute) lock.Unlock() }
The fslock package provides a convenient and portable solution for acquiring and releasing exclusive file locks in Go. This ensures that files can be read and written safely without interference from other processes.
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