Package oshi.software.os
Interface FileSystem
- All Known Implementing Classes:
AbstractFileSystem
,FreeBsdFileSystem
,LinuxFileSystem
,MacFileSystem
,SolarisFileSystem
,WindowsFileSystem
@ThreadSafe public interface FileSystem
The File System is a logical arrangement, usually in a hierarchial tree,
where files are placed for storage and retrieval. It may consist of one or
more file stores.
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Method Summary
Modifier and Type Method Description OSFileStore[]
getFileStores()
Get file stores on this machine Instantiates an array ofOSFileStore
objects, representing a storage pool, device, partition, volume, concrete file system or other implementation specific means of file storage.OSFileStore[]
getFileStores(boolean localOnly)
Get file stores on this machine Instantiates an array ofOSFileStore
objects, representing a storage pool, device, partition, volume, concrete file system or other implementation specific means of file storage.long
getMaxFileDescriptors()
The maximum number of open file descriptors.long
getOpenFileDescriptors()
The current number of open file descriptors.
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Method Details
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getFileStores
OSFileStore[] getFileStores()Get file stores on this machine Instantiates an array ofOSFileStore
objects, representing a storage pool, device, partition, volume, concrete file system or other implementation specific means of file storage.- Returns:
- An array of OSFileStore objects or an empty array if none are present.
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getFileStores
Get file stores on this machine Instantiates an array ofOSFileStore
objects, representing a storage pool, device, partition, volume, concrete file system or other implementation specific means of file storage.- Parameters:
localOnly
- If true, filters the list to only local file stores.- Returns:
- An array of OSFileStore objects or an empty array if none are present.
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getOpenFileDescriptors
long getOpenFileDescriptors()The current number of open file descriptors. A file descriptor is an abstract handle used to access I/O resources such as files and network connections. On UNIX-based systems there is a system-wide limit on the number of open file descriptors. On Windows systems, this method returns the total number of handles held by Processes. While Windows handles are conceptually similar to file descriptors, they may also refer to a number of non-I/O related objects.- Returns:
- The number of open file descriptors if available, 0 otherwise.
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getMaxFileDescriptors
long getMaxFileDescriptors()The maximum number of open file descriptors. A file descriptor is an abstract handle used to access I/O resources such as files and network connections. On UNIX-based systems there is a system-wide limit on the number of open file descriptors. On Windows systems, this method returns the theoretical max number of handles (2^24-2^15 on 32-bit, 2^24-2^16 on 64-bit). There may be a lower per-process limit. While Windows handles are conceptually similar to file descriptors, they may also refer to a number of non-I/O related objects.- Returns:
- The maximum number of file descriptors if available, 0 otherwise.
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