Posix.java revision 23ec09188303a874b3b391f96ae0a29af002bff9
1ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes/* 2ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Copyright (C) 2011 The Android Open Source Project 3ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * 4ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 5ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * you may not use this file except in compliance with the License. 6ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * You may obtain a copy of the License at 7ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * 8ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 9ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * 10ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Unless required by applicable law or agreed to in writing, software 11ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 12ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * See the License for the specific language governing permissions and 14ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * limitations under the License. 15ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes */ 16ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 17ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughespackage libcore.io; 18ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 1952724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesimport java.io.FileDescriptor; 200a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesimport java.net.InetAddress; 2123ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughesimport java.net.InetSocketAddress; 220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesimport java.net.SocketAddress; 2326c7025a7a919044771fb89031161bd26fe03032Elliott Hughesimport java.nio.ByteBuffer; 244af0d8c99d68bcacff182699527d983a1d34fdbeElliott Hughesimport java.nio.NioUtils; 258b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesimport libcore.util.MutableInt; 268b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughesimport libcore.util.MutableLong; 2752724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 28ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughespublic final class Posix implements Os { 29ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes Posix() { } 30ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 31ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes public native boolean access(String path, int mode) throws ErrnoException; 32da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes public native void bind(FileDescriptor fd, InetAddress address, int port) throws ErrnoException; 33b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes public native void chmod(String path, int mode) throws ErrnoException; 34462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes public native void close(FileDescriptor fd) throws ErrnoException; 35996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes public native void connect(FileDescriptor fd, InetAddress address, int port) throws ErrnoException; 36396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native FileDescriptor dup(FileDescriptor oldFd) throws ErrnoException; 37396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native FileDescriptor dup2(FileDescriptor oldFd, int newFd) throws ErrnoException; 38ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes public native String[] environ(); 39fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes public native int fcntlVoid(FileDescriptor fd, int cmd) throws ErrnoException; 40fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes public native int fcntlLong(FileDescriptor fd, int cmd, long arg) throws ErrnoException; 41fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes public native int fcntlFlock(FileDescriptor fd, int cmd, StructFlock arg) throws ErrnoException; 4252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes public native void fdatasync(FileDescriptor fd) throws ErrnoException; 4347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes public native StructStat fstat(FileDescriptor fd) throws ErrnoException; 4459fa7163774d6930a174bc038414a4b780581957Elliott Hughes public native StructStatFs fstatfs(FileDescriptor fd) throws ErrnoException; 4552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes public native void fsync(FileDescriptor fd) throws ErrnoException; 46f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes public native void ftruncate(FileDescriptor fd, long length) throws ErrnoException; 474f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes public native String gai_strerror(int error); 481c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes public native InetAddress[] getaddrinfo(String node, StructAddrinfo hints) throws GaiException; 49396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native int getegid(); 50396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native int geteuid(); 51396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native int getgid(); 52ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes public native String getenv(String name); 534f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes public native String getnameinfo(InetAddress address, int flags) throws GaiException; 54396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native int getpid(); 55396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native int getppid(); 56d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes public native StructPasswd getpwnam(String name) throws ErrnoException; 57d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes public native StructPasswd getpwuid(int uid) throws ErrnoException; 580a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes public native SocketAddress getsockname(FileDescriptor fd) throws ErrnoException; 590a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes public native int getsockoptByte(FileDescriptor fd, int level, int option) throws ErrnoException; 600a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes public native InetAddress getsockoptInAddr(FileDescriptor fd, int level, int option) throws ErrnoException; 610a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes public native int getsockoptInt(FileDescriptor fd, int level, int option) throws ErrnoException; 620a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes public native StructLinger getsockoptLinger(FileDescriptor fd, int level, int option) throws ErrnoException; 630a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes public native StructTimeval getsockoptTimeval(FileDescriptor fd, int level, int option) throws ErrnoException; 64396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native int getuid(); 65a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes public native String if_indextoname(int index); 66396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native InetAddress inet_aton(String address); 67a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes public native InetAddress ioctlInetAddress(FileDescriptor fd, int cmd, String interfaceName) throws ErrnoException; 688b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes public native int ioctlInt(FileDescriptor fd, int cmd, MutableInt arg) throws ErrnoException; 699a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes public native boolean isatty(FileDescriptor fd); 70a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes public native void kill(int pid, int signal) throws ErrnoException; 71e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes public native void listen(FileDescriptor fd, int backlog) throws ErrnoException; 72dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes public native long lseek(FileDescriptor fd, long offset, int whence) throws ErrnoException; 730f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes public native void mincore(long address, long byteCount, byte[] vector) throws ErrnoException; 74c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes public native void mkdir(String path, int mode) throws ErrnoException; 757e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes public native void mlock(long address, long byteCount) throws ErrnoException; 767e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes public native long mmap(long address, long byteCount, int prot, int flags, FileDescriptor fd, long offset) throws ErrnoException; 777e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes public native void msync(long address, long byteCount, int flags) throws ErrnoException; 787e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes public native void munlock(long address, long byteCount) throws ErrnoException; 797e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes public native void munmap(long address, long byteCount) throws ErrnoException; 800ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes public native FileDescriptor open(String path, int flags, int mode) throws ErrnoException; 8141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes public native FileDescriptor[] pipe() throws ErrnoException; 8270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes public native int poll(StructPollfd[] fds, int timeoutMs) throws ErrnoException; 8347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes public native StructStat lstat(String path) throws ErrnoException; 8426c7025a7a919044771fb89031161bd26fe03032Elliott Hughes public int read(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException { 8526c7025a7a919044771fb89031161bd26fe03032Elliott Hughes if (buffer.isDirect()) { 860568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes return readBytes(fd, buffer, buffer.position(), buffer.remaining()); 870568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes } else { 880568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes return readBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + buffer.position(), buffer.remaining()); 8926c7025a7a919044771fb89031161bd26fe03032Elliott Hughes } 9026c7025a7a919044771fb89031161bd26fe03032Elliott Hughes } 910568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes public int read(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException { 920568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes // This indirection isn't strictly necessary, but ensures that our public interface is type safe. 930568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes return readBytes(fd, bytes, byteOffset, byteCount); 940568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes } 950568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes private native int readBytes(FileDescriptor fd, Object buffer, int offset, int byteCount) throws ErrnoException; 96bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes public native int readv(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException; 9723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes public int recvfrom(FileDescriptor fd, ByteBuffer buffer, int flags, InetSocketAddress inetSocketAddress) throws ErrnoException { 9823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes if (buffer.isDirect()) { 9923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return recvfromBytes(fd, buffer, buffer.position(), buffer.remaining(), flags, inetSocketAddress); 10023ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes } else { 10123ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return recvfromBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + buffer.position(), buffer.remaining(), flags, inetSocketAddress); 10223ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes } 10323ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes } 10423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes public int recvfrom(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, InetSocketAddress inetSocketAddress) throws ErrnoException { 10523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes // This indirection isn't strictly necessary, but ensures that our public interface is type safe. 10623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return recvfromBytes(fd, bytes, byteOffset, byteCount, flags, inetSocketAddress); 10723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes } 10823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes private native int recvfromBytes(FileDescriptor fd, Object buffer, int byteOffset, int byteCount, int flags, InetSocketAddress inetSocketAddress) throws ErrnoException; 109c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes public native void remove(String path) throws ErrnoException; 110a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes public native void rename(String oldPath, String newPath) throws ErrnoException; 1118b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes public native long sendfile(FileDescriptor outFd, FileDescriptor inFd, MutableLong inOffset, long byteCount) throws ErrnoException; 11290d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes public int sendto(FileDescriptor fd, ByteBuffer buffer, int flags, InetAddress inetAddress, int port) throws ErrnoException { 11390d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes if (buffer.isDirect()) { 11490d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return sendtoBytes(fd, buffer, buffer.position(), buffer.remaining(), flags, inetAddress, port); 11590d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } else { 11690d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return sendtoBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + buffer.position(), buffer.remaining(), flags, inetAddress, port); 11790d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 11890d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 11990d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes public int sendto(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, InetAddress inetAddress, int port) throws ErrnoException { 12090d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes // This indirection isn't strictly necessary, but ensures that our public interface is type safe. 12190d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return sendtoBytes(fd, bytes, byteOffset, byteCount, flags, inetAddress, port); 12290d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 12390d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes private native int sendtoBytes(FileDescriptor fd, Object buffer, int byteOffset, int byteCount, int flags, InetAddress inetAddress, int port) throws ErrnoException; 124396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native void setegid(int egid) throws ErrnoException; 125396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native void seteuid(int euid) throws ErrnoException; 126396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native void setgid(int gid) throws ErrnoException; 127c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes public native void setsockoptByte(FileDescriptor fd, int level, int option, int value) throws ErrnoException; 128b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes public native void setsockoptIfreq(FileDescriptor fd, int level, int option, String value) throws ErrnoException; 129454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes public native void setsockoptInt(FileDescriptor fd, int level, int option, int value) throws ErrnoException; 130b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes public native void setsockoptIpMreqn(FileDescriptor fd, int level, int option, int value) throws ErrnoException; 131438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes public native void setsockoptGroupReq(FileDescriptor fd, int level, int option, StructGroupReq value) throws ErrnoException; 132c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes public native void setsockoptLinger(FileDescriptor fd, int level, int option, StructLinger value) throws ErrnoException; 133c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes public native void setsockoptTimeval(FileDescriptor fd, int level, int option, StructTimeval value) throws ErrnoException; 134396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native void setuid(int uid) throws ErrnoException; 13559e4744d27231f260271dbbca406e0cc39768116Elliott Hughes public native void shutdown(FileDescriptor fd, int how) throws ErrnoException; 136454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes public native FileDescriptor socket(int domain, int type, int protocol) throws ErrnoException; 13747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes public native StructStat stat(String path) throws ErrnoException; 13859fa7163774d6930a174bc038414a4b780581957Elliott Hughes public native StructStatFs statfs(String path) throws ErrnoException; 139ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes public native String strerror(int errno); 140a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes public native void symlink(String oldPath, String newPath) throws ErrnoException; 1416fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes public native long sysconf(int name); 1427341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes public native StructUtsname uname() throws ErrnoException; 14378c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes public int write(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException { 14478c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes if (buffer.isDirect()) { 1450568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes return writeBytes(fd, buffer, buffer.position(), buffer.remaining()); 1460568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes } else { 1470568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes return writeBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + buffer.position(), buffer.remaining()); 14878c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes } 14978c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes } 1500568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes public int write(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException { 1510568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes // This indirection isn't strictly necessary, but ensures that our public interface is type safe. 1520568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes return writeBytes(fd, bytes, byteOffset, byteCount); 1530568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes } 1540568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes private native int writeBytes(FileDescriptor fd, Object buffer, int offset, int byteCount) throws ErrnoException; 155bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes public native int writev(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException; 156ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 157