@Private @Unstable

Package org.apache.hadoop.io.nativeio

Various native IO-related calls not available in Java. These functions should generally be used alongside a fallback to another more portable mechanism.

Class Summary

Class	Description
NativeIO	JNI wrappers for various native IO-related calls not available in Java.
NativeIO.POSIX
NativeIO.POSIX.CacheManipulator	Used to manipulate the operating system cache.
NativeIO.POSIX.NoMlockCacheManipulator	A CacheManipulator used for testing which does not actually call mlock.
NativeIO.POSIX.Pmem	JNI wrapper of persist memory operations.
NativeIO.POSIX.PmemMappedRegion	Denote memory region for a file mapped.
NativeIO.POSIX.Stat	Result type of the fstat call
NativeIO.Windows
SharedFileDescriptorFactory	A factory for creating shared file descriptors inside a given directory.

Enum Summary

Enum	Description
Errno	Enum representing POSIX errno values.
NativeIO.POSIX.SupportState	Keeps the support state of PMDK.
NativeIO.Windows.AccessRight	Supported list of Windows access right flags

Exception Summary

Exception	Description
NativeIOException	An exception generated by a call to the native IO code.