1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package libcore.io; 18 19 import android.system.ErrnoException; 20 import android.system.GaiException; 21 import android.system.StructAddrinfo; 22 import android.system.StructFlock; 23 import android.system.StructGroupReq; 24 import android.system.StructGroupSourceReq; 25 import android.system.StructLinger; 26 import android.system.StructPasswd; 27 import android.system.StructPollfd; 28 import android.system.StructStat; 29 import android.system.StructStatVfs; 30 import android.system.StructTimeval; 31 import android.system.StructUcred; 32 import android.system.StructUtsname; 33 import android.util.MutableInt; 34 import android.util.MutableLong; 35 import java.io.FileDescriptor; 36 import java.io.InterruptedIOException; 37 import java.net.InetAddress; 38 import java.net.InetSocketAddress; 39 import java.net.SocketAddress; 40 import java.net.SocketException; 41 import java.nio.ByteBuffer; 42 43 /** 44 * Subclass this if you want to override some {@link Os} methods but otherwise delegate. 45 */ 46 public class ForwardingOs implements Os { 47 protected final Os os; 48 ForwardingOs(Os os)49 public ForwardingOs(Os os) { 50 this.os = os; 51 } 52 accept(FileDescriptor fd, SocketAddress peerAddress)53 public FileDescriptor accept(FileDescriptor fd, SocketAddress peerAddress) throws ErrnoException, SocketException { return os.accept(fd, peerAddress); } access(String path, int mode)54 public boolean access(String path, int mode) throws ErrnoException { return os.access(path, mode); } android_getaddrinfo(String node, StructAddrinfo hints, int netId)55 public InetAddress[] android_getaddrinfo(String node, StructAddrinfo hints, int netId) throws GaiException { return os.android_getaddrinfo(node, hints, netId); } bind(FileDescriptor fd, InetAddress address, int port)56 public void bind(FileDescriptor fd, InetAddress address, int port) throws ErrnoException, SocketException { os.bind(fd, address, port); } bind(FileDescriptor fd, SocketAddress address)57 public void bind(FileDescriptor fd, SocketAddress address) throws ErrnoException, SocketException { os.bind(fd, address); } chmod(String path, int mode)58 public void chmod(String path, int mode) throws ErrnoException { os.chmod(path, mode); } chown(String path, int uid, int gid)59 public void chown(String path, int uid, int gid) throws ErrnoException { os.chown(path, uid, gid); } close(FileDescriptor fd)60 public void close(FileDescriptor fd) throws ErrnoException { os.close(fd); } connect(FileDescriptor fd, InetAddress address, int port)61 public void connect(FileDescriptor fd, InetAddress address, int port) throws ErrnoException, SocketException { os.connect(fd, address, port); } connect(FileDescriptor fd, SocketAddress address)62 public void connect(FileDescriptor fd, SocketAddress address) throws ErrnoException, SocketException { os.connect(fd, address); } dup(FileDescriptor oldFd)63 public FileDescriptor dup(FileDescriptor oldFd) throws ErrnoException { return os.dup(oldFd); } dup2(FileDescriptor oldFd, int newFd)64 public FileDescriptor dup2(FileDescriptor oldFd, int newFd) throws ErrnoException { return os.dup2(oldFd, newFd); } environ()65 public String[] environ() { return os.environ(); } execv(String filename, String[] argv)66 public void execv(String filename, String[] argv) throws ErrnoException { os.execv(filename, argv); } execve(String filename, String[] argv, String[] envp)67 public void execve(String filename, String[] argv, String[] envp) throws ErrnoException { os.execve(filename, argv, envp); } fchmod(FileDescriptor fd, int mode)68 public void fchmod(FileDescriptor fd, int mode) throws ErrnoException { os.fchmod(fd, mode); } fchown(FileDescriptor fd, int uid, int gid)69 public void fchown(FileDescriptor fd, int uid, int gid) throws ErrnoException { os.fchown(fd, uid, gid); } fcntlFlock(FileDescriptor fd, int cmd, StructFlock arg)70 public int fcntlFlock(FileDescriptor fd, int cmd, StructFlock arg) throws ErrnoException, InterruptedIOException { return os.fcntlFlock(fd, cmd, arg); } fcntlInt(FileDescriptor fd, int cmd, int arg)71 public int fcntlInt(FileDescriptor fd, int cmd, int arg) throws ErrnoException { return os.fcntlInt(fd, cmd, arg); } fcntlVoid(FileDescriptor fd, int cmd)72 public int fcntlVoid(FileDescriptor fd, int cmd) throws ErrnoException { return os.fcntlVoid(fd, cmd); } fdatasync(FileDescriptor fd)73 public void fdatasync(FileDescriptor fd) throws ErrnoException { os.fdatasync(fd); } fstat(FileDescriptor fd)74 public StructStat fstat(FileDescriptor fd) throws ErrnoException { return os.fstat(fd); } fstatvfs(FileDescriptor fd)75 public StructStatVfs fstatvfs(FileDescriptor fd) throws ErrnoException { return os.fstatvfs(fd); } fsync(FileDescriptor fd)76 public void fsync(FileDescriptor fd) throws ErrnoException { os.fsync(fd); } ftruncate(FileDescriptor fd, long length)77 public void ftruncate(FileDescriptor fd, long length) throws ErrnoException { os.ftruncate(fd, length); } gai_strerror(int error)78 public String gai_strerror(int error) { return os.gai_strerror(error); } getegid()79 public int getegid() { return os.getegid(); } geteuid()80 public int geteuid() { return os.geteuid(); } getgid()81 public int getgid() { return os.getgid(); } getenv(String name)82 public String getenv(String name) { return os.getenv(name); } getnameinfo(InetAddress address, int flags)83 public String getnameinfo(InetAddress address, int flags) throws GaiException { return os.getnameinfo(address, flags); } getpeername(FileDescriptor fd)84 public SocketAddress getpeername(FileDescriptor fd) throws ErrnoException { return os.getpeername(fd); } getpgid(int pid)85 public int getpgid(int pid) throws ErrnoException { return os.getpgid(pid); } getpid()86 public int getpid() { return os.getpid(); } getppid()87 public int getppid() { return os.getppid(); } getpwnam(String name)88 public StructPasswd getpwnam(String name) throws ErrnoException { return os.getpwnam(name); } getpwuid(int uid)89 public StructPasswd getpwuid(int uid) throws ErrnoException { return os.getpwuid(uid); } getsockname(FileDescriptor fd)90 public SocketAddress getsockname(FileDescriptor fd) throws ErrnoException { return os.getsockname(fd); } getsockoptByte(FileDescriptor fd, int level, int option)91 public int getsockoptByte(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptByte(fd, level, option); } getsockoptInAddr(FileDescriptor fd, int level, int option)92 public InetAddress getsockoptInAddr(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptInAddr(fd, level, option); } getsockoptInt(FileDescriptor fd, int level, int option)93 public int getsockoptInt(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptInt(fd, level, option); } getsockoptLinger(FileDescriptor fd, int level, int option)94 public StructLinger getsockoptLinger(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptLinger(fd, level, option); } getsockoptTimeval(FileDescriptor fd, int level, int option)95 public StructTimeval getsockoptTimeval(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptTimeval(fd, level, option); } getsockoptUcred(FileDescriptor fd, int level, int option)96 public StructUcred getsockoptUcred(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptUcred(fd, level, option); } gettid()97 public int gettid() { return os.gettid(); } getuid()98 public int getuid() { return os.getuid(); } getxattr(String path, String name, byte[] outValue)99 public int getxattr(String path, String name, byte[] outValue) throws ErrnoException { return os.getxattr(path, name, outValue); } if_indextoname(int index)100 public String if_indextoname(int index) { return os.if_indextoname(index); } inet_pton(int family, String address)101 public InetAddress inet_pton(int family, String address) { return os.inet_pton(family, address); } ioctlInetAddress(FileDescriptor fd, int cmd, String interfaceName)102 public InetAddress ioctlInetAddress(FileDescriptor fd, int cmd, String interfaceName) throws ErrnoException { return os.ioctlInetAddress(fd, cmd, interfaceName); } ioctlInt(FileDescriptor fd, int cmd, MutableInt arg)103 public int ioctlInt(FileDescriptor fd, int cmd, MutableInt arg) throws ErrnoException { return os.ioctlInt(fd, cmd, arg); } isatty(FileDescriptor fd)104 public boolean isatty(FileDescriptor fd) { return os.isatty(fd); } kill(int pid, int signal)105 public void kill(int pid, int signal) throws ErrnoException { os.kill(pid, signal); } lchown(String path, int uid, int gid)106 public void lchown(String path, int uid, int gid) throws ErrnoException { os.lchown(path, uid, gid); } link(String oldPath, String newPath)107 public void link(String oldPath, String newPath) throws ErrnoException { os.link(oldPath, newPath); } listen(FileDescriptor fd, int backlog)108 public void listen(FileDescriptor fd, int backlog) throws ErrnoException { os.listen(fd, backlog); } lseek(FileDescriptor fd, long offset, int whence)109 public long lseek(FileDescriptor fd, long offset, int whence) throws ErrnoException { return os.lseek(fd, offset, whence); } lstat(String path)110 public StructStat lstat(String path) throws ErrnoException { return os.lstat(path); } mincore(long address, long byteCount, byte[] vector)111 public void mincore(long address, long byteCount, byte[] vector) throws ErrnoException { os.mincore(address, byteCount, vector); } mkdir(String path, int mode)112 public void mkdir(String path, int mode) throws ErrnoException { os.mkdir(path, mode); } mkfifo(String path, int mode)113 public void mkfifo(String path, int mode) throws ErrnoException { os.mkfifo(path, mode); } mlock(long address, long byteCount)114 public void mlock(long address, long byteCount) throws ErrnoException { os.mlock(address, byteCount); } mmap(long address, long byteCount, int prot, int flags, FileDescriptor fd, long offset)115 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); } msync(long address, long byteCount, int flags)116 public void msync(long address, long byteCount, int flags) throws ErrnoException { os.msync(address, byteCount, flags); } munlock(long address, long byteCount)117 public void munlock(long address, long byteCount) throws ErrnoException { os.munlock(address, byteCount); } munmap(long address, long byteCount)118 public void munmap(long address, long byteCount) throws ErrnoException { os.munmap(address, byteCount); } open(String path, int flags, int mode)119 public FileDescriptor open(String path, int flags, int mode) throws ErrnoException { return os.open(path, flags, mode); } pipe2(int flags)120 public FileDescriptor[] pipe2(int flags) throws ErrnoException { return os.pipe2(flags); } poll(StructPollfd[] fds, int timeoutMs)121 public int poll(StructPollfd[] fds, int timeoutMs) throws ErrnoException { return os.poll(fds, timeoutMs); } posix_fallocate(FileDescriptor fd, long offset, long length)122 public void posix_fallocate(FileDescriptor fd, long offset, long length) throws ErrnoException { os.posix_fallocate(fd, offset, length); } prctl(int option, long arg2, long arg3, long arg4, long arg5)123 public int prctl(int option, long arg2, long arg3, long arg4, long arg5) throws ErrnoException { return os.prctl(option, arg2, arg3, arg4, arg5); }; pread(FileDescriptor fd, ByteBuffer buffer, long offset)124 public int pread(FileDescriptor fd, ByteBuffer buffer, long offset) throws ErrnoException, InterruptedIOException { return os.pread(fd, buffer, offset); } pread(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset)125 public int pread(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset) throws ErrnoException, InterruptedIOException { return os.pread(fd, bytes, byteOffset, byteCount, offset); } pwrite(FileDescriptor fd, ByteBuffer buffer, long offset)126 public int pwrite(FileDescriptor fd, ByteBuffer buffer, long offset) throws ErrnoException, InterruptedIOException { return os.pwrite(fd, buffer, offset); } pwrite(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset)127 public int pwrite(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset) throws ErrnoException, InterruptedIOException { return os.pwrite(fd, bytes, byteOffset, byteCount, offset); } read(FileDescriptor fd, ByteBuffer buffer)128 public int read(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException, InterruptedIOException { return os.read(fd, buffer); } read(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount)129 public int read(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException, InterruptedIOException { return os.read(fd, bytes, byteOffset, byteCount); } readlink(String path)130 public String readlink(String path) throws ErrnoException { return os.readlink(path); } realpath(String path)131 public String realpath(String path) throws ErrnoException { return os.realpath(path); } readv(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts)132 public int readv(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException, InterruptedIOException { return os.readv(fd, buffers, offsets, byteCounts); } recvfrom(FileDescriptor fd, ByteBuffer buffer, int flags, InetSocketAddress srcAddress)133 public int recvfrom(FileDescriptor fd, ByteBuffer buffer, int flags, InetSocketAddress srcAddress) throws ErrnoException, SocketException { return os.recvfrom(fd, buffer, flags, srcAddress); } recvfrom(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, InetSocketAddress srcAddress)134 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); } remove(String path)135 public void remove(String path) throws ErrnoException { os.remove(path); } removexattr(String path, String name)136 public void removexattr(String path, String name) throws ErrnoException { os.removexattr(path, name); } rename(String oldPath, String newPath)137 public void rename(String oldPath, String newPath) throws ErrnoException { os.rename(oldPath, newPath); } sendfile(FileDescriptor outFd, FileDescriptor inFd, MutableLong inOffset, long byteCount)138 public long sendfile(FileDescriptor outFd, FileDescriptor inFd, MutableLong inOffset, long byteCount) throws ErrnoException { return os.sendfile(outFd, inFd, inOffset, byteCount); } sendto(FileDescriptor fd, ByteBuffer buffer, int flags, InetAddress inetAddress, int port)139 public int sendto(FileDescriptor fd, ByteBuffer buffer, int flags, InetAddress inetAddress, int port) throws ErrnoException, SocketException { return os.sendto(fd, buffer, flags, inetAddress, port); } sendto(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, InetAddress inetAddress, int port)140 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); } sendto(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, SocketAddress address)141 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); } setegid(int egid)142 public void setegid(int egid) throws ErrnoException { os.setegid(egid); } setenv(String name, String value, boolean overwrite)143 public void setenv(String name, String value, boolean overwrite) throws ErrnoException { os.setenv(name, value, overwrite); } seteuid(int euid)144 public void seteuid(int euid) throws ErrnoException { os.seteuid(euid); } setgid(int gid)145 public void setgid(int gid) throws ErrnoException { os.setgid(gid); } setpgid(int pid, int pgid)146 public void setpgid(int pid, int pgid) throws ErrnoException { os.setpgid(pid, pgid); } setregid(int rgid, int egid)147 public void setregid(int rgid, int egid) throws ErrnoException { os.setregid(rgid, egid); } setreuid(int ruid, int euid)148 public void setreuid(int ruid, int euid) throws ErrnoException { os.setreuid(ruid, euid); } setsid()149 public int setsid() throws ErrnoException { return os.setsid(); } setsockoptByte(FileDescriptor fd, int level, int option, int value)150 public void setsockoptByte(FileDescriptor fd, int level, int option, int value) throws ErrnoException { os.setsockoptByte(fd, level, option, value); } setsockoptIfreq(FileDescriptor fd, int level, int option, String value)151 public void setsockoptIfreq(FileDescriptor fd, int level, int option, String value) throws ErrnoException { os.setsockoptIfreq(fd, level, option, value); } setsockoptInt(FileDescriptor fd, int level, int option, int value)152 public void setsockoptInt(FileDescriptor fd, int level, int option, int value) throws ErrnoException { os.setsockoptInt(fd, level, option, value); } setsockoptIpMreqn(FileDescriptor fd, int level, int option, int value)153 public void setsockoptIpMreqn(FileDescriptor fd, int level, int option, int value) throws ErrnoException { os.setsockoptIpMreqn(fd, level, option, value); } setsockoptGroupReq(FileDescriptor fd, int level, int option, StructGroupReq value)154 public void setsockoptGroupReq(FileDescriptor fd, int level, int option, StructGroupReq value) throws ErrnoException { os.setsockoptGroupReq(fd, level, option, value); } setsockoptGroupSourceReq(FileDescriptor fd, int level, int option, StructGroupSourceReq value)155 public void setsockoptGroupSourceReq(FileDescriptor fd, int level, int option, StructGroupSourceReq value) throws ErrnoException { os.setsockoptGroupSourceReq(fd, level, option, value); } setsockoptLinger(FileDescriptor fd, int level, int option, StructLinger value)156 public void setsockoptLinger(FileDescriptor fd, int level, int option, StructLinger value) throws ErrnoException { os.setsockoptLinger(fd, level, option, value); } setsockoptTimeval(FileDescriptor fd, int level, int option, StructTimeval value)157 public void setsockoptTimeval(FileDescriptor fd, int level, int option, StructTimeval value) throws ErrnoException { os.setsockoptTimeval(fd, level, option, value); } setuid(int uid)158 public void setuid(int uid) throws ErrnoException { os.setuid(uid); } setxattr(String path, String name, byte[] value, int flags)159 public void setxattr(String path, String name, byte[] value, int flags) throws ErrnoException { os.setxattr(path, name, value, flags); } shutdown(FileDescriptor fd, int how)160 public void shutdown(FileDescriptor fd, int how) throws ErrnoException { os.shutdown(fd, how); } socket(int domain, int type, int protocol)161 public FileDescriptor socket(int domain, int type, int protocol) throws ErrnoException { return os.socket(domain, type, protocol); } socketpair(int domain, int type, int protocol, FileDescriptor fd1, FileDescriptor fd2)162 public void socketpair(int domain, int type, int protocol, FileDescriptor fd1, FileDescriptor fd2) throws ErrnoException { os.socketpair(domain, type, protocol, fd1, fd2); } stat(String path)163 public StructStat stat(String path) throws ErrnoException { return os.stat(path); } statvfs(String path)164 public StructStatVfs statvfs(String path) throws ErrnoException { return os.statvfs(path); } strerror(int errno)165 public String strerror(int errno) { return os.strerror(errno); } strsignal(int signal)166 public String strsignal(int signal) { return os.strsignal(signal); } symlink(String oldPath, String newPath)167 public void symlink(String oldPath, String newPath) throws ErrnoException { os.symlink(oldPath, newPath); } sysconf(int name)168 public long sysconf(int name) { return os.sysconf(name); } tcdrain(FileDescriptor fd)169 public void tcdrain(FileDescriptor fd) throws ErrnoException { os.tcdrain(fd); } tcsendbreak(FileDescriptor fd, int duration)170 public void tcsendbreak(FileDescriptor fd, int duration) throws ErrnoException { os.tcsendbreak(fd, duration); } umask(int mask)171 public int umask(int mask) { return os.umask(mask); } uname()172 public StructUtsname uname() { return os.uname(); } unlink(String pathname)173 public void unlink(String pathname) throws ErrnoException { os.unlink(pathname); } unsetenv(String name)174 public void unsetenv(String name) throws ErrnoException { os.unsetenv(name); } waitpid(int pid, MutableInt status, int options)175 public int waitpid(int pid, MutableInt status, int options) throws ErrnoException { return os.waitpid(pid, status, options); } write(FileDescriptor fd, ByteBuffer buffer)176 public int write(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException, InterruptedIOException { return os.write(fd, buffer); } write(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount)177 public int write(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException, InterruptedIOException { return os.write(fd, bytes, byteOffset, byteCount); } writev(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts)178 public int writev(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException, InterruptedIOException { return os.writev(fd, buffers, offsets, byteCounts); } 179 } 180