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/*
* 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 java.io.FileDescriptor;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.net.SocketException;
import java.nio.ByteBuffer;
import java.nio.NioUtils;
import libcore.util.MutableInt;
import libcore.util.MutableLong;
public final class Posix implements Os {
Posix() { }
public native FileDescriptor accept(FileDescriptor fd, InetSocketAddress peerAddress) throws ErrnoException, SocketException;
public native boolean access(String path, int mode) throws ErrnoException;
public native void bind(FileDescriptor fd, InetAddress address, int port) throws ErrnoException, SocketException;
public native void chmod(String path, int mode) throws ErrnoException;
public native void chown(String path, int uid, int gid) throws ErrnoException;
public native void close(FileDescriptor fd) throws ErrnoException;
public native void connect(FileDescriptor fd, InetAddress address, int port) throws ErrnoException, SocketException;
public native FileDescriptor dup(FileDescriptor oldFd) throws ErrnoException;
public native FileDescriptor dup2(FileDescriptor oldFd, int newFd) throws ErrnoException;
public native String[] environ();
public native void execv(String filename, String[] argv) throws ErrnoException;
public native void execve(String filename, String[] argv, String[] envp) throws ErrnoException;
public native void fchmod(FileDescriptor fd, int mode) throws ErrnoException;
public native void fchown(FileDescriptor fd, int uid, int gid) throws ErrnoException;
public native int fcntlVoid(FileDescriptor fd, int cmd) throws ErrnoException;
public native int fcntlLong(FileDescriptor fd, int cmd, long arg) throws ErrnoException;
public native int fcntlFlock(FileDescriptor fd, int cmd, StructFlock arg) throws ErrnoException;
public native void fdatasync(FileDescriptor fd) throws ErrnoException;
public native StructStat fstat(FileDescriptor fd) throws ErrnoException;
public native StructStatVfs fstatvfs(FileDescriptor fd) throws ErrnoException;
public native void fsync(FileDescriptor fd) throws ErrnoException;
public native void ftruncate(FileDescriptor fd, long length) throws ErrnoException;
public native String gai_strerror(int error);
public native InetAddress[] getaddrinfo(String node, StructAddrinfo hints) throws GaiException;
public native int getegid();
public native int geteuid();
public native int getgid();
public native String getenv(String name);
public native String getnameinfo(InetAddress address, int flags) throws GaiException;
public native SocketAddress getpeername(FileDescriptor fd) throws ErrnoException;
public native int getpid();
public native int getppid();
public native StructPasswd getpwnam(String name) throws ErrnoException;
public native StructPasswd getpwuid(int uid) throws ErrnoException;
public native SocketAddress getsockname(FileDescriptor fd) throws ErrnoException;
public native int getsockoptByte(FileDescriptor fd, int level, int option) throws ErrnoException;
public native InetAddress getsockoptInAddr(FileDescriptor fd, int level, int option) throws ErrnoException;
public native int getsockoptInt(FileDescriptor fd, int level, int option) throws ErrnoException;
public native StructLinger getsockoptLinger(FileDescriptor fd, int level, int option) throws ErrnoException;
public native StructTimeval getsockoptTimeval(FileDescriptor fd, int level, int option) throws ErrnoException;
public native StructUcred getsockoptUcred(FileDescriptor fd, int level, int option) throws ErrnoException;
public native int gettid();
public native int getuid();
public native String if_indextoname(int index);
public native InetAddress inet_pton(int family, String address);
public native InetAddress ioctlInetAddress(FileDescriptor fd, int cmd, String interfaceName) throws ErrnoException;
public native int ioctlInt(FileDescriptor fd, int cmd, MutableInt arg) throws ErrnoException;
public native boolean isatty(FileDescriptor fd);
public native void kill(int pid, int signal) throws ErrnoException;
public native void lchown(String path, int uid, int gid) throws ErrnoException;
public native void listen(FileDescriptor fd, int backlog) throws ErrnoException;
public native long lseek(FileDescriptor fd, long offset, int whence) throws ErrnoException;
public native StructStat lstat(String path) throws ErrnoException;
public native void mincore(long address, long byteCount, byte[] vector) throws ErrnoException;
public native void mkdir(String path, int mode) throws ErrnoException;
public native void mlock(long address, long byteCount) throws ErrnoException;
public native long mmap(long address, long byteCount, int prot, int flags, FileDescriptor fd, long offset) throws ErrnoException;
public native void msync(long address, long byteCount, int flags) throws ErrnoException;
public native void munlock(long address, long byteCount) throws ErrnoException;
public native void munmap(long address, long byteCount) throws ErrnoException;
public native FileDescriptor open(String path, int flags, int mode) throws ErrnoException;
public native FileDescriptor[] pipe() throws ErrnoException;
public native int poll(StructPollfd[] fds, int timeoutMs) throws ErrnoException;
public int pread(FileDescriptor fd, ByteBuffer buffer, long offset) throws ErrnoException {
if (buffer.isDirect()) {
return preadBytes(fd, buffer, buffer.position(), buffer.remaining(), offset);
} else {
return preadBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + buffer.position(), buffer.remaining(), offset);
}
}
public int pread(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset) throws ErrnoException {
// This indirection isn't strictly necessary, but ensures that our public interface is type safe.
return preadBytes(fd, bytes, byteOffset, byteCount, offset);
}
private native int preadBytes(FileDescriptor fd, Object buffer, int bufferOffset, int byteCount, long offset) throws ErrnoException;
public int pwrite(FileDescriptor fd, ByteBuffer buffer, long offset) throws ErrnoException {
if (buffer.isDirect()) {
return pwriteBytes(fd, buffer, buffer.position(), buffer.remaining(), offset);
} else {
return pwriteBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + buffer.position(), buffer.remaining(), offset);
}
}
public int pwrite(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset) throws ErrnoException {
// This indirection isn't strictly necessary, but ensures that our public interface is type safe.
return pwriteBytes(fd, bytes, byteOffset, byteCount, offset);
}
private native int pwriteBytes(FileDescriptor fd, Object buffer, int bufferOffset, int byteCount, long offset) throws ErrnoException;
public int read(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException {
if (buffer.isDirect()) {
return readBytes(fd, buffer, buffer.position(), buffer.remaining());
} else {
return readBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + buffer.position(), buffer.remaining());
}
}
public int read(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException {
// This indirection isn't strictly necessary, but ensures that our public interface is type safe.
return readBytes(fd, bytes, byteOffset, byteCount);
}
private native int readBytes(FileDescriptor fd, Object buffer, int offset, int byteCount) throws ErrnoException;
public native int readv(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException;
public int recvfrom(FileDescriptor fd, ByteBuffer buffer, int flags, InetSocketAddress srcAddress) throws ErrnoException, SocketException {
if (buffer.isDirect()) {
return recvfromBytes(fd, buffer, buffer.position(), buffer.remaining(), flags, srcAddress);
} else {
return recvfromBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + buffer.position(), buffer.remaining(), flags, srcAddress);
}
}
public int recvfrom(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, InetSocketAddress srcAddress) throws ErrnoException, SocketException {
// This indirection isn't strictly necessary, but ensures that our public interface is type safe.
return recvfromBytes(fd, bytes, byteOffset, byteCount, flags, srcAddress);
}
private native int recvfromBytes(FileDescriptor fd, Object buffer, int byteOffset, int byteCount, int flags, InetSocketAddress srcAddress) throws ErrnoException, SocketException;
public native void remove(String path) throws ErrnoException;
public native void rename(String oldPath, String newPath) throws ErrnoException;
public native long sendfile(FileDescriptor outFd, FileDescriptor inFd, MutableLong inOffset, long byteCount) throws ErrnoException;
public int sendto(FileDescriptor fd, ByteBuffer buffer, int flags, InetAddress inetAddress, int port) throws ErrnoException, SocketException {
if (buffer.isDirect()) {
return sendtoBytes(fd, buffer, buffer.position(), buffer.remaining(), flags, inetAddress, port);
} else {
return sendtoBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + buffer.position(), buffer.remaining(), flags, inetAddress, port);
}
}
public int sendto(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, InetAddress inetAddress, int port) throws ErrnoException, SocketException {
// This indirection isn't strictly necessary, but ensures that our public interface is type safe.
return sendtoBytes(fd, bytes, byteOffset, byteCount, flags, inetAddress, port);
}
private native int sendtoBytes(FileDescriptor fd, Object buffer, int byteOffset, int byteCount, int flags, InetAddress inetAddress, int port) throws ErrnoException, SocketException;
public native void setegid(int egid) throws ErrnoException;
public native void setenv(String name, String value, boolean overwrite) throws ErrnoException;
public native void seteuid(int euid) throws ErrnoException;
public native void setgid(int gid) throws ErrnoException;
public native int setsid() throws ErrnoException;
public native void setsockoptByte(FileDescriptor fd, int level, int option, int value) throws ErrnoException;
public native void setsockoptIfreq(FileDescriptor fd, int level, int option, String value) throws ErrnoException;
public native void setsockoptInt(FileDescriptor fd, int level, int option, int value) throws ErrnoException;
public native void setsockoptIpMreqn(FileDescriptor fd, int level, int option, int value) throws ErrnoException;
public native void setsockoptGroupReq(FileDescriptor fd, int level, int option, StructGroupReq value) throws ErrnoException;
public native void setsockoptLinger(FileDescriptor fd, int level, int option, StructLinger value) throws ErrnoException;
public native void setsockoptTimeval(FileDescriptor fd, int level, int option, StructTimeval value) throws ErrnoException;
public native void setuid(int uid) throws ErrnoException;
public native void shutdown(FileDescriptor fd, int how) throws ErrnoException;
public native FileDescriptor socket(int domain, int type, int protocol) throws ErrnoException;
public native void socketpair(int domain, int type, int protocol, FileDescriptor fd1, FileDescriptor fd2) throws ErrnoException;
public native StructStat stat(String path) throws ErrnoException;
public native StructStatVfs statvfs(String path) throws ErrnoException;
public native String strerror(int errno);
public native String strsignal(int signal);
public native void symlink(String oldPath, String newPath) throws ErrnoException;
public native long sysconf(int name);
public native void tcdrain(FileDescriptor fd) throws ErrnoException;
public native void tcsendbreak(FileDescriptor fd, int duration) throws ErrnoException;
public int umask(int mask) {
if ((mask & 0777) != mask) {
throw new IllegalArgumentException("Invalid umask: " + mask);
}
return umaskImpl(mask);
}
private native int umaskImpl(int mask);
public native StructUtsname uname();
public native void unsetenv(String name) throws ErrnoException;
public native int waitpid(int pid, MutableInt status, int options) throws ErrnoException;
public int write(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException {
if (buffer.isDirect()) {
return writeBytes(fd, buffer, buffer.position(), buffer.remaining());
} else {
return writeBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + buffer.position(), buffer.remaining());
}
}
public int write(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException {
// This indirection isn't strictly necessary, but ensures that our public interface is type safe.
return writeBytes(fd, bytes, byteOffset, byteCount);
}
private native int writeBytes(FileDescriptor fd, Object buffer, int offset, int byteCount) throws ErrnoException;
public native int writev(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException;
}
