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      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 java.io.FileDescriptor;
     20 import java.net.InetAddress;
     21 import java.net.InetSocketAddress;
     22 import java.net.SocketAddress;
     23 import java.net.SocketException;
     24 import java.nio.ByteBuffer;
     25 import libcore.util.MutableInt;
     26 import libcore.util.MutableLong;
     27 
     28 /**
     29  * Subclass this if you want to override some {@link Os} methods but otherwise delegate.
     30  */
     31 public class ForwardingOs implements Os {
     32     protected final Os os;
     33 
     34     public ForwardingOs(Os os) {
     35         this.os = os;
     36     }
     37 
     38     public FileDescriptor accept(FileDescriptor fd, InetSocketAddress peerAddress) throws ErrnoException, SocketException { return os.accept(fd, peerAddress); }
     39     public boolean access(String path, int mode) throws ErrnoException { return os.access(path, mode); }
     40     public void bind(FileDescriptor fd, InetAddress address, int port) throws ErrnoException, SocketException { os.bind(fd, address, port); }
     41     public void chmod(String path, int mode) throws ErrnoException { os.chmod(path, mode); }
     42     public void chown(String path, int uid, int gid) throws ErrnoException { os.chown(path, uid, gid); }
     43     public void close(FileDescriptor fd) throws ErrnoException { os.close(fd); }
     44     public void connect(FileDescriptor fd, InetAddress address, int port) throws ErrnoException, SocketException { os.connect(fd, address, port); }
     45     public FileDescriptor dup(FileDescriptor oldFd) throws ErrnoException { return os.dup(oldFd); }
     46     public FileDescriptor dup2(FileDescriptor oldFd, int newFd) throws ErrnoException { return os.dup2(oldFd, newFd); }
     47     public String[] environ() { return os.environ(); }
     48     public void fchmod(FileDescriptor fd, int mode) throws ErrnoException { os.fchmod(fd, mode); }
     49     public void fchown(FileDescriptor fd, int uid, int gid) throws ErrnoException { os.fchown(fd, uid, gid); }
     50     public int fcntlVoid(FileDescriptor fd, int cmd) throws ErrnoException { return os.fcntlVoid(fd, cmd); }
     51     public int fcntlLong(FileDescriptor fd, int cmd, long arg) throws ErrnoException { return os.fcntlLong(fd, cmd, arg); }
     52     public int fcntlFlock(FileDescriptor fd, int cmd, StructFlock arg) throws ErrnoException { return os.fcntlFlock(fd, cmd, arg); }
     53     public void fdatasync(FileDescriptor fd) throws ErrnoException { os.fdatasync(fd); }
     54     public StructStat fstat(FileDescriptor fd) throws ErrnoException { return os.fstat(fd); }
     55     public StructStatFs fstatfs(FileDescriptor fd) throws ErrnoException { return os.fstatfs(fd); }
     56     public void fsync(FileDescriptor fd) throws ErrnoException { os.fsync(fd); }
     57     public void ftruncate(FileDescriptor fd, long length) throws ErrnoException { os.ftruncate(fd, length); }
     58     public String gai_strerror(int error) { return os.gai_strerror(error); }
     59     public InetAddress[] getaddrinfo(String node, StructAddrinfo hints) throws GaiException { return os.getaddrinfo(node, hints); }
     60     public int getegid() { return os.getegid(); }
     61     public int geteuid() { return os.geteuid(); }
     62     public int getgid() { return os.getgid(); }
     63     public String getenv(String name) { return os.getenv(name); }
     64     public String getnameinfo(InetAddress address, int flags) throws GaiException { return os.getnameinfo(address, flags); }
     65     public int getpid() { return os.getpid(); }
     66     public int getppid() { return os.getppid(); }
     67     public StructPasswd getpwnam(String name) throws ErrnoException { return os.getpwnam(name); }
     68     public StructPasswd getpwuid(int uid) throws ErrnoException { return os.getpwuid(uid); }
     69     public SocketAddress getsockname(FileDescriptor fd) throws ErrnoException { return os.getsockname(fd); }
     70     public int getsockoptByte(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptByte(fd, level, option); }
     71     public InetAddress getsockoptInAddr(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptInAddr(fd, level, option); }
     72     public int getsockoptInt(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptInt(fd, level, option); }
     73     public StructLinger getsockoptLinger(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptLinger(fd, level, option); }
     74     public StructTimeval getsockoptTimeval(FileDescriptor fd, int level, int option) throws ErrnoException { return os.getsockoptTimeval(fd, level, option); }
     75     public int getuid() { return os.getuid(); }
     76     public String if_indextoname(int index) { return os.if_indextoname(index); }
     77     public InetAddress inet_pton(int family, String address) { return os.inet_pton(family, address); }
     78     public InetAddress ioctlInetAddress(FileDescriptor fd, int cmd, String interfaceName) throws ErrnoException { return os.ioctlInetAddress(fd, cmd, interfaceName); }
     79     public int ioctlInt(FileDescriptor fd, int cmd, MutableInt arg) throws ErrnoException { return os.ioctlInt(fd, cmd, arg); }
     80     public boolean isatty(FileDescriptor fd) { return os.isatty(fd); }
     81     public void kill(int pid, int signal) throws ErrnoException { os.kill(pid, signal); }
     82     public void lchown(String path, int uid, int gid) throws ErrnoException { os.lchown(path, uid, gid); }
     83     public void listen(FileDescriptor fd, int backlog) throws ErrnoException { os.listen(fd, backlog); }
     84     public long lseek(FileDescriptor fd, long offset, int whence) throws ErrnoException { return os.lseek(fd, offset, whence); }
     85     public StructStat lstat(String path) throws ErrnoException { return os.lstat(path); }
     86     public void mincore(long address, long byteCount, byte[] vector) throws ErrnoException { os.mincore(address, byteCount, vector); }
     87     public void mkdir(String path, int mode) throws ErrnoException { os.mkdir(path, mode); }
     88     public void mlock(long address, long byteCount) throws ErrnoException { os.mlock(address, byteCount); }
     89     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); }
     90     public void msync(long address, long byteCount, int flags) throws ErrnoException { os.msync(address, byteCount, flags); }
     91     public void munlock(long address, long byteCount) throws ErrnoException { os.munlock(address, byteCount); }
     92     public void munmap(long address, long byteCount) throws ErrnoException { os.munmap(address, byteCount); }
     93     public FileDescriptor open(String path, int flags, int mode) throws ErrnoException { return os.open(path, flags, mode); }
     94     public FileDescriptor[] pipe() throws ErrnoException { return os.pipe(); }
     95     public int poll(StructPollfd[] fds, int timeoutMs) throws ErrnoException { return os.poll(fds, timeoutMs); }
     96     public int pread(FileDescriptor fd, ByteBuffer buffer, long offset) throws ErrnoException { return os.pread(fd, buffer, offset); }
     97     public int pread(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset) throws ErrnoException { return os.pread(fd, bytes, byteOffset, byteCount, offset); }
     98     public int pwrite(FileDescriptor fd, ByteBuffer buffer, long offset) throws ErrnoException { return os.pwrite(fd, buffer, offset); }
     99     public int pwrite(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset) throws ErrnoException { return os.pwrite(fd, bytes, byteOffset, byteCount, offset); }
    100     public int read(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException { return os.read(fd, buffer); }
    101     public int read(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException { return os.read(fd, bytes, byteOffset, byteCount); }
    102     public int readv(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException { return os.readv(fd, buffers, offsets, byteCounts); }
    103     public int recvfrom(FileDescriptor fd, ByteBuffer buffer, int flags, InetSocketAddress srcAddress) throws ErrnoException, SocketException { return os.recvfrom(fd, buffer, flags, srcAddress); }
    104     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); }
    105     public void remove(String path) throws ErrnoException { os.remove(path); }
    106     public void rename(String oldPath, String newPath) throws ErrnoException { os.rename(oldPath, newPath); }
    107     public long sendfile(FileDescriptor outFd, FileDescriptor inFd, MutableLong inOffset, long byteCount) throws ErrnoException { return os.sendfile(outFd, inFd, inOffset, byteCount); }
    108     public int sendto(FileDescriptor fd, ByteBuffer buffer, int flags, InetAddress inetAddress, int port) throws ErrnoException, SocketException { return os.sendto(fd, buffer, flags, inetAddress, port); }
    109     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); }
    110     public void setegid(int egid) throws ErrnoException { os.setegid(egid); }
    111     public void seteuid(int euid) throws ErrnoException { os.seteuid(euid); }
    112     public void setgid(int gid) throws ErrnoException { os.setgid(gid); }
    113     public int setsid() throws ErrnoException { return os.setsid(); }
    114     public void setsockoptByte(FileDescriptor fd, int level, int option, int value) throws ErrnoException { os.setsockoptByte(fd, level, option, value); }
    115     public void setsockoptIfreq(FileDescriptor fd, int level, int option, String value) throws ErrnoException { os.setsockoptIfreq(fd, level, option, value); }
    116     public void setsockoptInt(FileDescriptor fd, int level, int option, int value) throws ErrnoException { os.setsockoptInt(fd, level, option, value); }
    117     public void setsockoptIpMreqn(FileDescriptor fd, int level, int option, int value) throws ErrnoException { os.setsockoptIpMreqn(fd, level, option, value); }
    118     public void setsockoptGroupReq(FileDescriptor fd, int level, int option, StructGroupReq value) throws ErrnoException { os.setsockoptGroupReq(fd, level, option, value); }
    119     public void setsockoptLinger(FileDescriptor fd, int level, int option, StructLinger value) throws ErrnoException { os.setsockoptLinger(fd, level, option, value); }
    120     public void setsockoptTimeval(FileDescriptor fd, int level, int option, StructTimeval value) throws ErrnoException { os.setsockoptTimeval(fd, level, option, value); }
    121     public void setuid(int uid) throws ErrnoException { os.setuid(uid); }
    122     public void shutdown(FileDescriptor fd, int how) throws ErrnoException { os.shutdown(fd, how); }
    123     public FileDescriptor socket(int domain, int type, int protocol) throws ErrnoException { return os.socket(domain, type, protocol); }
    124     public void socketpair(int domain, int type, int protocol, FileDescriptor fd1, FileDescriptor fd2) throws ErrnoException { os.socketpair(domain, type, protocol, fd1, fd2); }
    125     public StructStat stat(String path) throws ErrnoException { return os.stat(path); }
    126     public StructStatFs statfs(String path) throws ErrnoException { return os.statfs(path); }
    127     public String strerror(int errno) { return os.strerror(errno); }
    128     public void symlink(String oldPath, String newPath) throws ErrnoException { os.symlink(oldPath, newPath); }
    129     public long sysconf(int name) { return os.sysconf(name); }
    130     public void tcdrain(FileDescriptor fd) throws ErrnoException { os.tcdrain(fd); }
    131     public int umask(int mask) { return os.umask(mask); }
    132     public StructUtsname uname() { return os.uname(); }
    133     public int waitpid(int pid, MutableInt status, int options) throws ErrnoException { return os.waitpid(pid, status, options); }
    134     public int write(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException { return os.write(fd, buffer); }
    135     public int write(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException { return os.write(fd, bytes, byteOffset, byteCount); }
    136     public int writev(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException { return os.writev(fd, buffers, offsets, byteCounts); }
    137 }
    138