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This commit introduces file locking capabilities to the Okio FileSystem. Key changes: - Added `FileSystem.lock()` method to acquire exclusive or shared locks on files. - Implemented `FileLock` interface for managing lock state and lifecycle. - Provided JVM-specific implementation using `java.nio.channels.FileChannel.lock()`. - Added `FakeFileSystemLock` for testing purposes. - Included base and platform-specific tests for file locking functionality. - Default implementations in common, JS, Native, and Wasm `FileSystem` throw `IOException` as locking is not supported on these platforms by default. - Updated `NioFileSystemWrappingFileSystem` and `JvmSystemFileSystem` to delegate to the new locking mechanism.
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This commit introduces file locking capabilities to the Okio FileSystem.
For discussion of #1464
TODO
proper-lockfile?Key changes:
FileSystem.lock()method to acquire exclusive or shared locks on files.FileLockinterface for managing lock state and lifecycle.java.nio.channels.FileChannel.lock().FakeFileSystemLockfor testing purposes.FileSystemthrowIOExceptionas locking is not supported on these platforms by default.NioFileSystemWrappingFileSystemandJvmSystemFileSystemto delegate to the new locking mechanism.