Method Read

jsonfile.go:64–68

Read calls fn with the current copy of the data.

(fn func(data *Data))

// Read calls fn with the current copy of the data.
func (p *JSONFile[Data]) Read(fn func(data *Data)) {
	p.mu.RLock()
	defer p.mu.RUnlock()
	fn(p.data)
}

// Write calls fn with a copy of the data, then writes the changes to the file.
// If fn returns an error, Write does not change the file and returns the error.