| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package libcore.io; |
| |
| import android.system.ErrnoException; |
| import android.system.GaiException; |
| import android.system.Int32Ref; |
| import android.system.Int64Ref; |
| import android.system.StructAddrinfo; |
| import android.system.StructCapUserData; |
| import android.system.StructCapUserHeader; |
| import android.system.StructGroupReq; |
| import android.system.StructIfaddrs; |
| import android.system.StructLinger; |
| import android.system.StructMsghdr; |
| import android.system.StructPasswd; |
| import android.system.StructPollfd; |
| import android.system.StructRlimit; |
| import android.system.StructStat; |
| import android.system.StructStatVfs; |
| import android.system.StructTimeval; |
| import android.system.StructUcred; |
| import android.system.StructUtsname; |
| |
| import android.compat.annotation.UnsupportedAppUsage; |
| import java.io.FileDescriptor; |
| import java.io.InterruptedIOException; |
| import java.net.InetAddress; |
| import java.net.InetSocketAddress; |
| import java.net.SocketAddress; |
| import java.net.SocketException; |
| import java.nio.ByteBuffer; |
| import java.util.Objects; |
| |
| import libcore.util.NonNull; |
| import libcore.util.Nullable; |
| |
| /** |
| * Subclass this if you want to override some {@link Os} methods but otherwise delegate. |
| * |
| * @hide |
| */ |
| @libcore.api.CorePlatformApi(status = libcore.api.CorePlatformApi.Status.STABLE) |
| public class ForwardingOs implements Os { |
| @UnsupportedAppUsage |
| private final Os os; |
| |
| /** |
| * Constructs new {@link ForwardingOs}. |
| * |
| * @param os {@link Os} delegate for not overridden methods |
| */ |
| @UnsupportedAppUsage |
| @libcore.api.CorePlatformApi(status = libcore.api.CorePlatformApi.Status.STABLE) |
| protected ForwardingOs(@NonNull Os os) { |
| this.os = Objects.requireNonNull(os); |
| } |
| |
| /** @return the delegate object passed to the constructor. */ |
| protected final Os delegate() { |
| return os; |
| } |
| |
| public FileDescriptor accept(FileDescriptor fd, SocketAddress peerAddress) throws ErrnoException, SocketException { return os.accept(fd, peerAddress); } |
| |
| /** |
| * Checks whether the calling process can access the file |
| * {@code path}. If {@code path} is a symbolic link, it is dereferenced. |
| * |
| * The mode specifies the accessibility check(s) to be performed, |
| * and is either the value {@link android.system.OsConstants#F_OK}, |
| * or a mask consisting of the bitwise OR of one or more of |
| * {@link android.system.OsConstants#R_OK}, {@link android.system.OsConstants#W_OK}, |
| * and {@link android.system.OsConstants#X_OK}. |
| * |
| * {@link android.system.OsConstants#F_OK} tests for the |
| * existence of the file. {@link android.system.OsConstants#R_OK}, |
| * {@link android.system.OsConstants#W_OK}, and {@link android.system.OsConstants#X_OK} |
| * test whether the file exists and grants read, write, and execute permissions, respectively. |
| * |
| * @see <a href="https://man7.org/linux/man-pages/man2/access.2.html">access(2)</a>. |
| * |
| * @param path path of the file to check access for |
| * @param mode accessibility checks mask |
| * @return {@code true} if file is accessible (all requested permissions granted, |
| * or mode is {@link android.system.OsConstants#F_OK} and the file exists)); |
| * and throws otherwise |
| * @throws ErrnoException if at least one bit in mode asked for a permission that is denied, |
| * or mode is {@link android.system.OsConstants#F_OK} and the file |
| * does not exist, or some other error occurred. See the full list |
| * of errors in the "See Also" list. |
| */ |
| @UnsupportedAppUsage |
| @libcore.api.CorePlatformApi(status = libcore.api.CorePlatformApi.Status.STABLE) |
| public boolean access(@Nullable String path, int mode) throws ErrnoException { return os.access(path, mode); } |
| public InetAddress[] android_getaddrinfo(String node, StructAddrinfo hints, int netId) throws GaiException { return os.android_getaddrinfo(node, hints, netId); } |
| public void bind(FileDescriptor fd, InetAddress address, int port) throws ErrnoException, SocketException { os.bind(fd, address, port); } |
| public void bind(FileDescriptor fd, SocketAddress address) throws ErrnoException, SocketException { os.bind(fd, address); } |
| @Override |
| public StructCapUserData[] capget(StructCapUserHeader hdr) throws ErrnoException { |
| return os.capget(hdr); |
| } |
| @Override |
| public void capset(StructCapUserHeader hdr, StructCapUserData[] data) throws ErrnoException { |
| os.capset(hdr, data); |
| } |
| @UnsupportedAppUsage |
| public void chmod(String path, int mode) throws ErrnoException { os.chmod(path, mode); } |
| @UnsupportedAppUsage |
| public void chown(String path, int uid, int gid) throws ErrnoException { os.chown(path, uid, gid); } |
| public void close(FileDescriptor fd) throws ErrnoException { os.close(fd); } |
| public void android_fdsan_exchange_owner_tag(FileDescriptor fd, long previousOwnerId, long newOwnerId) { os.android_fdsan_exchange_owner_tag(fd, previousOwnerId, newOwnerId); } |
| public long android_fdsan_get_owner_tag(FileDescriptor fd) { return os.android_fdsan_get_owner_tag(fd); } |
| public String android_fdsan_get_tag_type(long tag) { return os.android_fdsan_get_tag_type(tag); } |
| public long android_fdsan_get_tag_value(long tag) { return os.android_fdsan_get_tag_value(tag); } |
| |
| public void connect(FileDescriptor fd, InetAddress address, int port) throws ErrnoException, SocketException { os.connect(fd, address, port); } |
| public void connect(FileDescriptor fd, SocketAddress address) throws ErrnoException, SocketException { os.connect(fd, address); } |
| public FileDescriptor dup(FileDescriptor oldFd) throws ErrnoException { return os.dup(oldFd); } |
| public FileDescriptor dup2(FileDescriptor oldFd, int newFd) throws ErrnoException { return os.dup2(oldFd, newFd); } |
| public String[] environ() { return os.environ(); } |
| public void execv(String filename, String[] argv) throws ErrnoException { os.execv(filename, argv); } |
| public void execve(String filename, String[] argv, String[] envp) throws ErrnoException { os.execve(filename, argv, envp); } |
| public void fchmod(FileDescriptor fd, int mode) throws ErrnoException { os.fchmod(fd, mode); } |
| public void fchown(FileDescriptor fd, int uid, int gid) throws ErrnoException { os.fchown(fd, uid, gid); } |
| public int fcntlInt(FileDescriptor fd, int cmd, int arg) throws ErrnoException { return os.fcntlInt(fd, cmd, arg); } |
| public int fcntlVoid(FileDescriptor fd, int cmd) throws ErrnoException { return os.fcntlVoid(fd, cmd); } |
| public void fdatasync(FileDescriptor fd) throws ErrnoException { os.fdatasync(fd); } |
| public StructStat fstat(FileDescriptor fd) throws ErrnoException { return os.fstat(fd); } |
| public StructStatVfs fstatvfs(FileDescriptor fd) throws ErrnoException { return os.fstatvfs(fd); } |
| public void fsync(FileDescriptor fd) throws ErrnoException { os.fsync(fd); } |
| public void ftruncate(FileDescriptor fd, long length) throws ErrnoException { os.ftruncate(fd, length); } |
| public String gai_strerror(int error) { return os.gai_strerror(error); } |
| public int getegid() { return os.getegid(); } |
| public int geteuid() { return os.geteuid(); } |
| public int getgid() { return os.getgid(); } |
| @UnsupportedAppUsage |
| public String getenv(String name) { return os.getenv(name); } |
| public String getnameinfo(InetAddress address, int flags) throws GaiException { return os.getnameinfo(address, flags); } |
| public SocketAddress getpeername(FileDescriptor fd) throws ErrnoException { return os.getpeername(fd); } |
| public int getpgid(int pid) throws ErrnoException { return os.getpgid(pid); } |
| public int getpid() { return os.getpid(); } |
| public int getppid() { return os.getppid(); } |
| public StructPasswd getpwnam(String name) throws ErrnoException { return os.getpwnam(name); } |
| public StructPasswd getpwuid(int uid) throws ErrnoException { return os.getpwuid(uid); } |
| public StructRlimit getrlimit(int resource) throws ErrnoException { return os.getrlimit(resource); } |
| public SocketAddress getsockname(FileDescriptor fd) throws ErrnoException { return os.getsockname(fd); } |
| public int getsockoptByte(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptByte(fd, level, option); } |
| public InetAddress getsockoptInAddr(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptInAddr(fd, level, option); } |
| public int getsockoptInt(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptInt(fd, level, option); } |
| public StructLinger getsockoptLinger(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptLinger(fd, level, option); } |
| public StructTimeval getsockoptTimeval(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptTimeval(fd, level, option); } |
| public StructUcred getsockoptUcred(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptUcred(fd, level, option); } |
| public int gettid() { return os.gettid(); } |
| public int getuid() { return os.getuid(); } |
| public byte[] getxattr(String path, String name) throws ErrnoException { return os.getxattr(path, name); } |
| public StructIfaddrs[] getifaddrs() throws ErrnoException { return os.getifaddrs(); } |
| public String if_indextoname(int index) { return os.if_indextoname(index); } |
| public int if_nametoindex(String name) { return os.if_nametoindex(name); } |
| public InetAddress inet_pton(int family, String address) { return os.inet_pton(family, address); } |
| public int ioctlFlags(FileDescriptor fd, String interfaceName) throws ErrnoException { return os.ioctlFlags(fd, interfaceName); }; |
| public InetAddress ioctlInetAddress(FileDescriptor fd, int cmd, String interfaceName) throws ErrnoException { return os.ioctlInetAddress(fd, cmd, interfaceName); } |
| public int ioctlInt(FileDescriptor fd, int cmd) throws ErrnoException { return os.ioctlInt(fd, cmd); } |
| public int ioctlMTU(FileDescriptor fd, String interfaceName) throws ErrnoException { return os.ioctlMTU(fd, interfaceName); }; |
| public boolean isatty(FileDescriptor fd) { return os.isatty(fd); } |
| public void kill(int pid, int signal) throws ErrnoException { os.kill(pid, signal); } |
| @UnsupportedAppUsage |
| public void lchown(String path, int uid, int gid) throws ErrnoException { os.lchown(path, uid, gid); } |
| @UnsupportedAppUsage |
| public void link(String oldPath, String newPath) throws ErrnoException { os.link(oldPath, newPath); } |
| public void listen(FileDescriptor fd, int backlog) throws ErrnoException { os.listen(fd, backlog); } |
| public String[] listxattr(String path) throws ErrnoException { return os.listxattr(path); } |
| public long lseek(FileDescriptor fd, long offset, int whence) throws ErrnoException { return os.lseek(fd, offset, whence); } |
| @UnsupportedAppUsage |
| public StructStat lstat(String path) throws ErrnoException { return os.lstat(path); } |
| public FileDescriptor memfd_create(String name, int flags) throws ErrnoException { return os.memfd_create(name, flags); } |
| public void mincore(long address, long byteCount, byte[] vector) throws ErrnoException { os.mincore(address, byteCount, vector); } |
| @UnsupportedAppUsage |
| public void mkdir(String path, int mode) throws ErrnoException { os.mkdir(path, mode); } |
| @UnsupportedAppUsage |
| public void mkfifo(String path, int mode) throws ErrnoException { os.mkfifo(path, mode); } |
| public void mlock(long address, long byteCount) throws ErrnoException { os.mlock(address, byteCount); } |
| public long mmap(long address, long byteCount, int prot, int flags, FileDescriptor fd, long offset) throws ErrnoException { return os.mmap(address, byteCount, prot, flags, fd, offset); } |
| public void msync(long address, long byteCount, int flags) throws ErrnoException { os.msync(address, byteCount, flags); } |
| public void munlock(long address, long byteCount) throws ErrnoException { os.munlock(address, byteCount); } |
| public void munmap(long address, long byteCount) throws ErrnoException { os.munmap(address, byteCount); } |
| |
| /** |
| * Opens the file specified by {@code path}. |
| * |
| * If the specified file does not exist, it may optionally (if |
| * {@link android.system.OsConstants#O_CREAT} is specified in flags) |
| * be created by {@link #open(String, int, int)}. |
| * |
| * The argument flags must include one of the following access |
| * modes: {@link android.system.OsConstants#O_RDONLY}, |
| * {@link android.system.OsConstants#O_WRONLY}, or |
| * {@link android.system.OsConstants#O_RDWR}. These request opening the |
| * file read-only, write-only, or read/write, respectively. |
| * |
| * In addition, zero or more file creation flags and file status |
| * flags can be bitwise-or'd in flags. The file creation flags are |
| * {@link android.system.OsConstants#O_CLOEXEC}, {@link android.system.OsConstants#O_CREAT}, |
| * {@link android.system.OsConstants#O_DIRECTORY}, {@link android.system.OsConstants#O_EXCL}, |
| * {@link android.system.OsConstants#O_NOCTTY}, {@link android.system.OsConstants#O_NOFOLLOW}, |
| * {@link android.system.OsConstants#O_TMPFILE}, and {@link android.system.OsConstants#O_TRUNC}. |
| * |
| * @see <a href="https://man7.org/linux/man-pages/man2/open.2.html">open(2)</a>. |
| * |
| * @param path path of the file to be opened |
| * @param flags bitmask of the access, file creation and file status flags |
| * @param mode specifies the file mode bits to be applied when a new file is |
| * created. If neither {@link android.system.OsConstants#O_CREAT} |
| * nor {@link android.system.OsConstants#O_TMPFILE} is specified in |
| * flags, then mode is ignored (and can thus be specified as 0, or simply omitted). |
| * @return {@link FileDescriptor} of an opened file |
| * @throws ErrnoException if requested access to the file is not allowed, or search |
| * permission is denied for one of the directories in the |
| * path prefix of {@code path}, or the file did not exist yet and |
| * write access to the parent directory is not allowed, or other error. |
| * See the full list of errors in the "See Also" list. |
| */ |
| @UnsupportedAppUsage |
| @libcore.api.CorePlatformApi(status = libcore.api.CorePlatformApi.Status.STABLE) |
| public FileDescriptor open(@Nullable String path, int flags, int mode) throws ErrnoException { return os.open(path, flags, mode); } |
| public FileDescriptor[] pipe2(int flags) throws ErrnoException { return os.pipe2(flags); } |
| public int poll(StructPollfd[] fds, int timeoutMs) throws ErrnoException { return os.poll(fds, timeoutMs); } |
| public void posix_fallocate(FileDescriptor fd, long offset, long length) throws ErrnoException { os.posix_fallocate(fd, offset, length); } |
| public int prctl(int option, long arg2, long arg3, long arg4, long arg5) throws ErrnoException { return os.prctl(option, arg2, arg3, arg4, arg5); }; |
| public int pread(FileDescriptor fd, ByteBuffer buffer, long offset) throws ErrnoException, InterruptedIOException { return os.pread(fd, buffer, offset); } |
| public int pread(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset) throws ErrnoException, InterruptedIOException { return os.pread(fd, bytes, byteOffset, byteCount, offset); } |
| public int pwrite(FileDescriptor fd, ByteBuffer buffer, long offset) throws ErrnoException, InterruptedIOException { return os.pwrite(fd, buffer, offset); } |
| public int pwrite(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset) throws ErrnoException, InterruptedIOException { return os.pwrite(fd, bytes, byteOffset, byteCount, offset); } |
| public int read(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException, InterruptedIOException { return os.read(fd, buffer); } |
| public int read(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException, InterruptedIOException { return os.read(fd, bytes, byteOffset, byteCount); } |
| @UnsupportedAppUsage |
| public String readlink(String path) throws ErrnoException { return os.readlink(path); } |
| public String realpath(String path) throws ErrnoException { return os.realpath(path); } |
| public int readv(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException, InterruptedIOException { return os.readv(fd, buffers, offsets, byteCounts); } |
| public int recvfrom(FileDescriptor fd, ByteBuffer buffer, int flags, InetSocketAddress srcAddress) throws ErrnoException, SocketException { return os.recvfrom(fd, buffer, flags, srcAddress); } |
| public int recvfrom(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, InetSocketAddress srcAddress) throws ErrnoException, SocketException { return os.recvfrom(fd, bytes, byteOffset, byteCount, flags, srcAddress); } |
| public int recvmsg(FileDescriptor fd, StructMsghdr msg, int flags) throws ErrnoException, SocketException { return os.recvmsg(fd, msg, flags); } |
| |
| /** |
| * Deletes a name from the filesystem. |
| * |
| * If the removed name was the last link to a file and no processes |
| * have the file open, the file is deleted and the space it was |
| * using is made available for reuse. |
| * |
| * If the name was the last link to a file, but any processes still |
| * have the file open, the file will remain in existence until the |
| * last file descriptor referring to it is closed. |
| * |
| * If the name referred to a symbolic link, the link is removed. |
| * |
| * If the name referred to a socket, FIFO, or device, the name is |
| * removed, but processes which have the object open may continue to |
| * use it. |
| * |
| * @see <a href="https://man7.org/linux/man-pages/man3/remove.3.html">remove(3)</a>. |
| * |
| * @param path file to delete |
| * @throws ErrnoException if access to {@code path} is not allowed, an I/O error occurred. |
| * See the full list of errors in the "See Also" list. |
| */ |
| @UnsupportedAppUsage |
| @libcore.api.CorePlatformApi(status = libcore.api.CorePlatformApi.Status.STABLE) |
| public void remove(@Nullable String path) throws ErrnoException { os.remove(path); } |
| @UnsupportedAppUsage |
| public void removexattr(String path, String name) throws ErrnoException { os.removexattr(path, name); } |
| |
| /** |
| * Renames a file, moving it between directories if required. |
| * |
| * @see <a href="https://man7.org/linux/man-pages/man2/rename.2.html">rename(2)</a>. |
| * |
| * @param oldPath file to be moved to a new location {@code newPath} |
| * @param newPath destination to move file {@code oldPath} |
| * @throws ErrnoException if write permission is denied for the directory containing |
| * {@code oldPath} or {@code newPath}, or, search permission is denied for |
| * one of the directories in the path prefix of {@code oldPath} or |
| * {@code newPath}, or {@code oldPath} is a directory and does not allow |
| * write permission. See the full list of errors in the "See Also" list. |
| */ |
| @UnsupportedAppUsage |
| @libcore.api.CorePlatformApi(status = libcore.api.CorePlatformApi.Status.STABLE) |
| public void rename(@Nullable String oldPath, @Nullable String newPath) throws ErrnoException { os.rename(oldPath, newPath); } |
| public long sendfile(FileDescriptor outFd, FileDescriptor inFd, Int64Ref offset, long byteCount) throws ErrnoException { return os.sendfile(outFd, inFd, offset, byteCount); } |
| public int sendmsg(FileDescriptor fd, StructMsghdr msg, int flags) throws ErrnoException, SocketException { return os.sendmsg(fd, msg, flags); } |
| public int sendto(FileDescriptor fd, ByteBuffer buffer, int flags, InetAddress inetAddress, int port) throws ErrnoException, SocketException { return os.sendto(fd, buffer, flags, inetAddress, port); } |
| public int sendto(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, InetAddress inetAddress, int port) throws ErrnoException, SocketException { return os.sendto(fd, bytes, byteOffset, byteCount, flags, inetAddress, port); } |
| public int sendto(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, SocketAddress address) throws ErrnoException, SocketException { return os.sendto(fd, bytes, byteOffset, byteCount, flags, address); } |
| public void setegid(int egid) throws ErrnoException { os.setegid(egid); } |
| @UnsupportedAppUsage |
| public void setenv(String name, String value, boolean overwrite) throws ErrnoException { os.setenv(name, value, overwrite); } |
| public void seteuid(int euid) throws ErrnoException { os.seteuid(euid); } |
| public void setgid(int gid) throws ErrnoException { os.setgid(gid); } |
| public void setpgid(int pid, int pgid) throws ErrnoException { os.setpgid(pid, pgid); } |
| public void setregid(int rgid, int egid) throws ErrnoException { os.setregid(rgid, egid); } |
| public void setreuid(int ruid, int euid) throws ErrnoException { os.setreuid(ruid, euid); } |
| public int setsid() throws ErrnoException { return os.setsid(); } |
| public void setsockoptByte(FileDescriptor fd, int level, int option, int value) throws ErrnoException { os.setsockoptByte(fd, level, option, value); } |
| public void setsockoptIfreq(FileDescriptor fd, int level, int option, String value) throws ErrnoException { os.setsockoptIfreq(fd, level, option, value); } |
| public void setsockoptInt(FileDescriptor fd, int level, int option, int value) throws ErrnoException { os.setsockoptInt(fd, level, option, value); } |
| public void setsockoptIpMreqn(FileDescriptor fd, int level, int option, int value) throws ErrnoException { os.setsockoptIpMreqn(fd, level, option, value); } |
| public void setsockoptGroupReq(FileDescriptor fd, int level, int option, StructGroupReq value) throws ErrnoException { os.setsockoptGroupReq(fd, level, option, value); } |
| public void setsockoptLinger(FileDescriptor fd, int level, int option, StructLinger value) throws ErrnoException { os.setsockoptLinger(fd, level, option, value); } |
| @UnsupportedAppUsage |
| public void setsockoptTimeval(FileDescriptor fd, int level, int option, StructTimeval value) throws ErrnoException { os.setsockoptTimeval(fd, level, option, value); } |
| public void setuid(int uid) throws ErrnoException { os.setuid(uid); } |
| @UnsupportedAppUsage |
| public void setxattr(String path, String name, byte[] value, int flags) throws ErrnoException { os.setxattr(path, name, value, flags); } |
| public void shutdown(FileDescriptor fd, int how) throws ErrnoException { os.shutdown(fd, how); } |
| public FileDescriptor socket(int domain, int type, int protocol) throws ErrnoException { return os.socket(domain, type, protocol); } |
| public void socketpair(int domain, int type, int protocol, FileDescriptor fd1, FileDescriptor fd2) throws ErrnoException { os.socketpair(domain, type, protocol, fd1, fd2); } |
| public long splice(FileDescriptor fdIn, Int64Ref offIn, FileDescriptor fdOut, Int64Ref offOut, long len, int flags) throws ErrnoException { return os.splice(fdIn, offIn, fdOut, offOut, len, flags); } |
| |
| /** |
| * Returns information about a file. |
| * |
| * @see <a href="https://man7.org/linux/man-pages/man2/lstat.2.html">stat(2)</a>. |
| * |
| * @param path path to file to get info about |
| * @return {@link StructStat} containing information about the file |
| * @throws ErrnoException See the full list of errors in the "See Also" list. |
| */ |
| @UnsupportedAppUsage |
| @libcore.api.CorePlatformApi(status = libcore.api.CorePlatformApi.Status.STABLE) |
| public @Nullable StructStat stat(@Nullable String path) throws ErrnoException { return os.stat(path); } |
| @UnsupportedAppUsage |
| public StructStatVfs statvfs(String path) throws ErrnoException { return os.statvfs(path); } |
| public String strerror(int errno) { return os.strerror(errno); } |
| public String strsignal(int signal) { return os.strsignal(signal); } |
| @UnsupportedAppUsage |
| public void symlink(String oldPath, String newPath) throws ErrnoException { os.symlink(oldPath, newPath); } |
| @UnsupportedAppUsage |
| public long sysconf(int name) { return os.sysconf(name); } |
| public void tcdrain(FileDescriptor fd) throws ErrnoException { os.tcdrain(fd); } |
| public void tcsendbreak(FileDescriptor fd, int duration) throws ErrnoException { os.tcsendbreak(fd, duration); } |
| public int umask(int mask) { return os.umask(mask); } |
| public StructUtsname uname() { return os.uname(); } |
| |
| /** |
| * Deletes a name from the filesystem. |
| * |
| * If the removed name was the last link to a file and no processes |
| * have the file open, the file is deleted and the space it was |
| * using is made available for reuse. |
| * |
| * If the name was the last link to a file, but any processes still |
| * have the file open, the file will remain in existence until the |
| * last file descriptor referring to it is closed. |
| * |
| * If the name referred to a symbolic link, the link is removed. |
| * |
| * If the name referred to a socket, FIFO, or device, the name is |
| * removed, but processes which have the object open may continue to |
| * use it. |
| * |
| * @see <a href="https://man7.org/linux/man-pages/man2/unlink.2.html">unlink(2)</a>. |
| * |
| * @param pathname file to unlink |
| * @throws ErrnoException if access to {@code pathname} is not allowed, an I/O error occurred. |
| * See the full list of errors in the "See Also" list. |
| */ |
| @UnsupportedAppUsage |
| @libcore.api.CorePlatformApi(status = libcore.api.CorePlatformApi.Status.STABLE) |
| public void unlink(@Nullable String pathname) throws ErrnoException { os.unlink(pathname); } |
| public void unsetenv(String name) throws ErrnoException { os.unsetenv(name); } |
| public int waitpid(int pid, Int32Ref status, int options) throws ErrnoException { return os.waitpid(pid, status, options); } |
| public int write(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException, InterruptedIOException { return os.write(fd, buffer); } |
| public int write(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException, InterruptedIOException { return os.write(fd, bytes, byteOffset, byteCount); } |
| public int writev(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException, InterruptedIOException { return os.writev(fd, buffers, offsets, byteCounts); } |
| |
| public String toString() { return "ForwardingOs{os=" + os + "}"; } |
| } |
