Package ej.wasi.io.file

Class WasiDirStub

java.lang.Object

ej.wasi.io.file.WasiDirStub

All Implemented Interfaces:

WasiDir, WasiIO, WasiConstants, Closeable, AutoCloseable

public class WasiDirStub
extends Object
implements WasiDir

Field Summary

Fields inherited from interface ej.wasi.WasiConstants

AF_INET, AF_INET6, BLOCKING_CONNECT_TIMEOUT, BUFFERED_INPUT_STREAM_SIZE, CLOCK_MONOTONIC, CLOCK_REALTIME, DIRENT_COOKIE_OFFSET, DIRENT_ENTRY_NAME_LENGTH_OFFSET, DIRENT_FILE_TYPE_OFFSET, DIRENT_INODE_OFFSET, DIRENT_SIZE, ERRNO_ACCES, ERRNO_ADDRINUSE, ERRNO_ADDRNOTAVAIL, ERRNO_AFNOSUPPORT, ERRNO_AGAIN, ERRNO_BADF, ERRNO_CONNREFUSED, ERRNO_EXIST, ERRNO_FAULT, ERRNO_HOSTUNREACH, ERRNO_INPROGRESS, ERRNO_INTR, ERRNO_INVAL, ERRNO_IO, ERRNO_ISCONN, ERRNO_ISDIR, ERRNO_MSGSIZE, ERRNO_NAMETOOLONG, ERRNO_NOENT, ERRNO_NOMEM, ERRNO_NOSYS, ERRNO_NOTCONN, ERRNO_NOTDIR, ERRNO_NOTEMPTY, ERRNO_NOTSOCK, ERRNO_NOTSUP, ERRNO_OVERFLOW, ERRNO_SPIPE, ERRNO_SUCCESS, EVENT_AVAILABLE_BYTE_OFFSET, EVENT_ERROR_OFFSET, EVENT_EVENT_TYPE_OFFSET, EVENT_READ_WRITE_HANGUP_OFFSET, EVENT_SIZE, EVENT_USER_DATA_OFFSET, FDFLAGS_APPEND_MASK, FDFLAGS_NON_BLOCK_MASK, FDSTAT_BASE_RIGHTS_OFFSET, FDSTAT_FILE_TYPE_OFFSET, FDSTAT_FLAGS_OFFSET, FDSTAT_INHERITING_RIGHTS_OFFSET, FILESTAT_FILESIZE_OFFSET, FILESTAT_FILETYPE_OFFSET, FILESTAT_INODE_OFFSET, FILESTAT_LAST_MODIFIED_TIME_OFFSET, IFF_LOOPBACK, IFF_RUNNING, IFF_UP, IOVEC_BUFFER_INDEX, IOVEC_BUFFER_LENGTH_INDEX, IOVEC_SIZE, IP_ADD_MEMBERSHIP, IP_DROP_MEMBERSHIP, IP_MULTICAST_IF, IP_MULTICAST_LOOP, IP_MULTICAST_TTL, IP_TTL, IPPROTO_IP, IPPROTO_IPV6, IPv4AddressSize, IPV6_JOIN_GROUP, IPV6_LEAVE_GROUP, IPV6_MULTICAST_HOPS, IPV6_MULTICAST_IF, IPV6_MULTICAST_LOOP, IPV6_UNICAST_HOPS, IPv6AddressSize, LOOKUPFLAGS_SYMLINK_FOLLOW_MASK, MILLIS_TO_NANO, NON_BLOCKING_TIMEOUT, OFLAGS_CREAT_MASK, OFLAGS_DIRECTORY_MASK, OFLAGS_EXCL_MASK, OFLAGS_TRUNC_MASK, POLLING_TIMEOUT, PREOPENTYPE_DIR, PREOPENTYPE_UNKNOWN, PRESTAT_PREOPEN_DIRNAME_OFFSET, PRESTAT_PREOPEN_TAG_OFFSET, RIFLAGS_MSG_PEEK_MASK, RIFLAGS_WAITALL_MASK, RIGHTS_ALL, RIGHTS_DIR, SDFLAGS_READ, SDFLAGS_WRITE, SO_BROADCAST, SO_RCVBUF, SO_REUSEADDR, SO_SNDBUF, SOCK_CLOEXEC, SOCK_NONBLOCK, SOCKET_LEVEL, UDP_PEEK_BUFFER_MAX_SIZE

Constructor Summary

Constructors

Constructor	Description
WasiDirStub(String dir)

Method Summary

Modifier and Type	Method	Description
void	close()	Closes this stream and releases any system resources associated with it.
void	delete()
String	getCanonicalPath()
String	getDirname()
FileType	getType()	Gets the WasiIO file descriptor type.
long	lastModidied()
WasiDir	openDir(String path)
WasiFile	openFile(String filename)
WasiIO	openFileOrDir(String path)
void	renameTo(WasiDir newFile)
int	wasiCreateDirectory(int pathPtr, int pathLen, byte[] memory)	Creates a directory in the same way that the posix mkdir() function would
int	wasiFilestatsSetTimes(int flags, int pathPtr, int pathLen, long accessTime, long modifiedTime, int fstFlags, byte[] memory)	Adjust the timestamps of a file or directory.
int	wasigetPathFileStat(int flags, int pathPtr, int pathLen, int filestatPtr, byte[] memory)
int	wasiOpenPath(WasiIORegistry registry, int dirflags, int pathPtr, int pathLen, int oflags, int fdPtr, byte[] memory)
int	wasiReadDir(int bufPtr, int bufLen, long cookie, int resPtr, byte[] memory)

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WasiDirStub

public WasiDirStub(String dir)
            throws IOException

Throws:

IOException

Method Detail

close

public void close()
           throws IOException

Description copied from interface: Closeable

Closes this stream and releases any system resources associated with it. If the stream is already closed then invoking this method has no effect.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException - if an I/O error occurs

lastModidied

public long lastModidied()

Specified by:

lastModidied in interface WasiDir

getCanonicalPath

public String getCanonicalPath()
                        throws IOException

Specified by:

getCanonicalPath in interface WasiDir

Throws:

IOException

openFile

public WasiFile openFile(String filename)
                  throws IOException

Specified by:

openFile in interface WasiDir

Throws:

IOException

getType

public FileType getType()

Description copied from interface: WasiIO

Gets the WasiIO file descriptor type.

Specified by:

getType in interface WasiIO

Returns:

the WasiIO file descriptor type.

getDirname

public String getDirname()

Specified by:

getDirname in interface WasiDir

wasiReadDir

public int wasiReadDir(int bufPtr,
                       int bufLen,
                       long cookie,
                       int resPtr,
                       byte[] memory)

Specified by:

wasiReadDir in interface WasiDir

wasigetPathFileStat

public int wasigetPathFileStat(int flags,
                               int pathPtr,
                               int pathLen,
                               int filestatPtr,
                               byte[] memory)

Specified by:

wasigetPathFileStat in interface WasiDir

wasiFilestatsSetTimes

public int wasiFilestatsSetTimes(int flags,
                                 int pathPtr,
                                 int pathLen,
                                 long accessTime,
                                 long modifiedTime,
                                 int fstFlags,
                                 byte[] memory)

Adjust the timestamps of a file or directory. Note: This is similar to utimensat in POSIX. Note: Currently only sets the modified time, and does nothing when trying to change access time.

Specified by:

wasiFilestatsSetTimes in interface WasiDir

Parameters:

flags - Flags determining the method of how the path is resolved.

pathPtr - pointer to path string

pathLen - length of path

accessTime - The desired values of the data access timestamp.

modifiedTime - The desired values of the data modification timestamp.

fstFlags - A bitmask indicating which timestamps to adjust. Bit 0 = Adjust the last data access timestamp to the value stored in accessTime Bit 1 = Adjust the last data access timestamp to the time of clock Bit 2 = Adjust the last data modification timestamp to the value stored in modifiedTime Bit 3 = Adjust the last data modification timestamp to the time of clock

memory - WASI memory

Returns:

an ERRNO.

wasiOpenPath

public int wasiOpenPath(WasiIORegistry registry,
                        int dirflags,
                        int pathPtr,
                        int pathLen,
                        int oflags,
                        int fdPtr,
                        byte[] memory)

Specified by:

wasiOpenPath in interface WasiDir

wasiCreateDirectory

public int wasiCreateDirectory(int pathPtr,
                               int pathLen,
                               byte[] memory)

Creates a directory in the same way that the posix mkdir() function would

Specified by:

wasiCreateDirectory in interface WasiDir

Parameters:

pathPtr - Pointer to a null-terminated string.

pathLen - The length of the path string.

memory - WASI memory

Returns:

Errno number.

openDir

public WasiDir openDir(String path)
                throws IOException

Specified by:

openDir in interface WasiDir

Throws:

IOException

delete

public void delete()
            throws WasiIOException

Specified by:

delete in interface WasiDir

Throws:

WasiIOException

openFileOrDir

public WasiIO openFileOrDir(String path)
                     throws IOException

Specified by:

openFileOrDir in interface WasiDir

Throws:

IOException

renameTo

public void renameTo(WasiDir newFile)
              throws IOException

Specified by:

renameTo in interface WasiDir

Throws:

IOException