Is os.File.Write() Thread-Safe in Go?

Thread Safety Considerations for os.File.Write()

The os.File.Write() function is a fundamental part of file handling in Go, enabling the writing of data to files. However, it's crucial to understand whether this function is safe to call concurrently from multiple threads.

The Go documentation does not explicitly mention the thread safety of os.File.Write(). In general, any function or method in the Go standard library is considered thread-safe only if explicitly stated or evident from the context.

Unfortunately, os.File.Write() does not fall into either of these categories. It is important to note that concurrent writes to the same os.File using Write() are not safe. To address this, external synchronization mechanisms must be implemented to ensure proper handling of shared access to the file.

This means that if you intend to use os.File.Write() in a multi-threaded environment, you will need to implement proper synchronization primitives, such as mutexes, to prevent data corruption and ensure the integrity of your files.

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