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 195d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.system.ErrnoException; 205d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.system.GaiException; 215d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.system.StructAddrinfo; 225d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.system.StructFlock; 235d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.system.StructGroupReq; 245d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.system.StructGroupSourceReq; 255d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.system.StructLinger; 265d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.system.StructPasswd; 275d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.system.StructPollfd; 285d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.system.StructStat; 295d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.system.StructStatVfs; 305d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.system.StructTimeval; 315d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.system.StructUcred; 325d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.system.StructUtsname; 335d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.util.MutableInt; 345d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughesimport android.util.MutableLong; 3552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughesimport java.io.FileDescriptor; 36f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fullerimport java.io.InterruptedIOException; 370a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesimport java.net.InetAddress; 3823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughesimport java.net.InetSocketAddress; 390a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesimport java.net.SocketAddress; 4026010ab930a2cee3bf10b9612cf070183c21228bElliott Hughesimport java.net.SocketException; 4126c7025a7a919044771fb89031161bd26fe03032Elliott Hughesimport java.nio.ByteBuffer; 424af0d8c99d68bcacff182699527d983a1d34fdbeElliott Hughesimport java.nio.NioUtils; 4352724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 44ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughespublic final class Posix implements Os { 45ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes Posix() { } 46ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 4726010ab930a2cee3bf10b9612cf070183c21228bElliott Hughes public native FileDescriptor accept(FileDescriptor fd, InetSocketAddress peerAddress) throws ErrnoException, SocketException; 48ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes public native boolean access(String path, int mode) throws ErrnoException; 493e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen public native InetAddress[] android_getaddrinfo(String node, StructAddrinfo hints, int netId) throws GaiException; 5026010ab930a2cee3bf10b9612cf070183c21228bElliott Hughes public native void bind(FileDescriptor fd, InetAddress address, int port) throws ErrnoException, SocketException; 51b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes public native void chmod(String path, int mode) throws ErrnoException; 5244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes public native void chown(String path, int uid, int gid) throws ErrnoException; 53462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes public native void close(FileDescriptor fd) throws ErrnoException; 5426010ab930a2cee3bf10b9612cf070183c21228bElliott Hughes public native void connect(FileDescriptor fd, InetAddress address, int port) throws ErrnoException, SocketException; 55396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native FileDescriptor dup(FileDescriptor oldFd) throws ErrnoException; 56396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native FileDescriptor dup2(FileDescriptor oldFd, int newFd) throws ErrnoException; 57ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes public native String[] environ(); 58798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich public native void execv(String filename, String[] argv) throws ErrnoException; 59798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich public native void execve(String filename, String[] argv, String[] envp) throws ErrnoException; 6044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes public native void fchmod(FileDescriptor fd, int mode) throws ErrnoException; 6144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes public native void fchown(FileDescriptor fd, int uid, int gid) throws ErrnoException; 62fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes public native int fcntlVoid(FileDescriptor fd, int cmd) throws ErrnoException; 63fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes public native int fcntlLong(FileDescriptor fd, int cmd, long arg) throws ErrnoException; 641791f6be1bd2733babb0c862ad8509f4c847b48fNeil Fuller public native int fcntlFlock(FileDescriptor fd, int cmd, StructFlock arg) throws ErrnoException, InterruptedIOException; 6552724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes public native void fdatasync(FileDescriptor fd) throws ErrnoException; 6647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes public native StructStat fstat(FileDescriptor fd) throws ErrnoException; 67721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes public native StructStatVfs fstatvfs(FileDescriptor fd) throws ErrnoException; 6852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes public native void fsync(FileDescriptor fd) throws ErrnoException; 69f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes public native void ftruncate(FileDescriptor fd, long length) throws ErrnoException; 704f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes public native String gai_strerror(int error); 71396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native int getegid(); 72396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native int geteuid(); 73396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native int getgid(); 74ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes public native String getenv(String name); 754f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes public native String getnameinfo(InetAddress address, int flags) throws GaiException; 76482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes public native SocketAddress getpeername(FileDescriptor fd) throws ErrnoException; 77396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native int getpid(); 78396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native int getppid(); 79d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes public native StructPasswd getpwnam(String name) throws ErrnoException; 80d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes public native StructPasswd getpwuid(int uid) throws ErrnoException; 810a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes public native SocketAddress getsockname(FileDescriptor fd) throws ErrnoException; 820a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes public native int getsockoptByte(FileDescriptor fd, int level, int option) throws ErrnoException; 830a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes public native InetAddress getsockoptInAddr(FileDescriptor fd, int level, int option) throws ErrnoException; 840a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes public native int getsockoptInt(FileDescriptor fd, int level, int option) throws ErrnoException; 850a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes public native StructLinger getsockoptLinger(FileDescriptor fd, int level, int option) throws ErrnoException; 860a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes public native StructTimeval getsockoptTimeval(FileDescriptor fd, int level, int option) throws ErrnoException; 87482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes public native StructUcred getsockoptUcred(FileDescriptor fd, int level, int option) throws ErrnoException; 88069525a39125c203b658c805685b6045a7d4dfebElliott Hughes public native int gettid(); 89396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native int getuid(); 90a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes public native String if_indextoname(int index); 91fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes public native InetAddress inet_pton(int family, String address); 92a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes public native InetAddress ioctlInetAddress(FileDescriptor fd, int cmd, String interfaceName) throws ErrnoException; 938b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes public native int ioctlInt(FileDescriptor fd, int cmd, MutableInt arg) throws ErrnoException; 949a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes public native boolean isatty(FileDescriptor fd); 95a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes public native void kill(int pid, int signal) throws ErrnoException; 9644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes public native void lchown(String path, int uid, int gid) throws ErrnoException; 9704428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes public native void link(String oldPath, String newPath) throws ErrnoException; 98e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes public native void listen(FileDescriptor fd, int backlog) throws ErrnoException; 99dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes public native long lseek(FileDescriptor fd, long offset, int whence) throws ErrnoException; 100e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes public native StructStat lstat(String path) throws ErrnoException; 1010f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes public native void mincore(long address, long byteCount, byte[] vector) throws ErrnoException; 102c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes public native void mkdir(String path, int mode) throws ErrnoException; 103f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller public native void mkfifo(String path, int mode) throws ErrnoException; 1047e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes public native void mlock(long address, long byteCount) throws ErrnoException; 1057e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes public native long mmap(long address, long byteCount, int prot, int flags, FileDescriptor fd, long offset) throws ErrnoException; 1067e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes public native void msync(long address, long byteCount, int flags) throws ErrnoException; 1077e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes public native void munlock(long address, long byteCount) throws ErrnoException; 1087e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes public native void munmap(long address, long byteCount) throws ErrnoException; 1090ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes public native FileDescriptor open(String path, int flags, int mode) throws ErrnoException; 11041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes public native FileDescriptor[] pipe() throws ErrnoException; 11170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes public native int poll(StructPollfd[] fds, int timeoutMs) throws ErrnoException; 11211f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes public native void posix_fallocate(FileDescriptor fd, long offset, long length) throws ErrnoException; 1135215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich public native int prctl(int option, long arg2, long arg3, long arg4, long arg5) throws ErrnoException; 114f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller public int pread(FileDescriptor fd, ByteBuffer buffer, long offset) throws ErrnoException, InterruptedIOException { 115f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath final int bytesRead; 116f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath final int position = buffer.position(); 117f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath 118e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes if (buffer.isDirect()) { 119f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath bytesRead = preadBytes(fd, buffer, position, buffer.remaining(), offset); 120e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } else { 121f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath bytesRead = preadBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + position, buffer.remaining(), offset); 122e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 123f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath 124f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath maybeUpdateBufferPosition(buffer, position, bytesRead); 125f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath return bytesRead; 126e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 127f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller public int pread(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset) throws ErrnoException, InterruptedIOException { 128e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes // This indirection isn't strictly necessary, but ensures that our public interface is type safe. 129e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return preadBytes(fd, bytes, byteOffset, byteCount, offset); 130e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 131f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller private native int preadBytes(FileDescriptor fd, Object buffer, int bufferOffset, int byteCount, long offset) throws ErrnoException, InterruptedIOException; 132f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller public int pwrite(FileDescriptor fd, ByteBuffer buffer, long offset) throws ErrnoException, InterruptedIOException { 133f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath final int bytesWritten; 134f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath final int position = buffer.position(); 135f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath 136e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes if (buffer.isDirect()) { 137f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath bytesWritten = pwriteBytes(fd, buffer, position, buffer.remaining(), offset); 138e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } else { 139f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath bytesWritten = pwriteBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + position, buffer.remaining(), offset); 140e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 141f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath 142f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath maybeUpdateBufferPosition(buffer, position, bytesWritten); 143f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath return bytesWritten; 144e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 145f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller public int pwrite(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset) throws ErrnoException, InterruptedIOException { 146e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes // This indirection isn't strictly necessary, but ensures that our public interface is type safe. 147e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return pwriteBytes(fd, bytes, byteOffset, byteCount, offset); 148e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 149f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller private native int pwriteBytes(FileDescriptor fd, Object buffer, int bufferOffset, int byteCount, long offset) throws ErrnoException, InterruptedIOException; 150f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller public int read(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException, InterruptedIOException { 151f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath final int bytesRead; 152f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath final int position = buffer.position(); 153f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath 15426c7025a7a919044771fb89031161bd26fe03032Elliott Hughes if (buffer.isDirect()) { 155f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath bytesRead = readBytes(fd, buffer, position, buffer.remaining()); 1560568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes } else { 157f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath bytesRead = readBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + position, buffer.remaining()); 15826c7025a7a919044771fb89031161bd26fe03032Elliott Hughes } 159f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath 160f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath maybeUpdateBufferPosition(buffer, position, bytesRead); 161f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath return bytesRead; 16226c7025a7a919044771fb89031161bd26fe03032Elliott Hughes } 163f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller public int read(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException, InterruptedIOException { 1640568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes // This indirection isn't strictly necessary, but ensures that our public interface is type safe. 1650568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes return readBytes(fd, bytes, byteOffset, byteCount); 1660568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes } 167f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller private native int readBytes(FileDescriptor fd, Object buffer, int offset, int byteCount) throws ErrnoException, InterruptedIOException; 1680b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes public native String readlink(String path) throws ErrnoException; 169f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller public native int readv(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException, InterruptedIOException; 17026010ab930a2cee3bf10b9612cf070183c21228bElliott Hughes public int recvfrom(FileDescriptor fd, ByteBuffer buffer, int flags, InetSocketAddress srcAddress) throws ErrnoException, SocketException { 171f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath final int bytesReceived; 172f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath final int position = buffer.position(); 173f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath 17423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes if (buffer.isDirect()) { 175f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath bytesReceived = recvfromBytes(fd, buffer, position, buffer.remaining(), flags, srcAddress); 17623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes } else { 177f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath bytesReceived = recvfromBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + position, buffer.remaining(), flags, srcAddress); 17823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes } 179f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath 180f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath maybeUpdateBufferPosition(buffer, position, bytesReceived); 181f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath return bytesReceived; 18223ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes } 18326010ab930a2cee3bf10b9612cf070183c21228bElliott Hughes public int recvfrom(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, InetSocketAddress srcAddress) throws ErrnoException, SocketException { 18423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes // This indirection isn't strictly necessary, but ensures that our public interface is type safe. 185553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return recvfromBytes(fd, bytes, byteOffset, byteCount, flags, srcAddress); 18623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes } 18726010ab930a2cee3bf10b9612cf070183c21228bElliott Hughes private native int recvfromBytes(FileDescriptor fd, Object buffer, int byteOffset, int byteCount, int flags, InetSocketAddress srcAddress) throws ErrnoException, SocketException; 188c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes public native void remove(String path) throws ErrnoException; 189a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes public native void rename(String oldPath, String newPath) throws ErrnoException; 1908b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes public native long sendfile(FileDescriptor outFd, FileDescriptor inFd, MutableLong inOffset, long byteCount) throws ErrnoException; 19126010ab930a2cee3bf10b9612cf070183c21228bElliott Hughes public int sendto(FileDescriptor fd, ByteBuffer buffer, int flags, InetAddress inetAddress, int port) throws ErrnoException, SocketException { 192f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath final int bytesSent; 193f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath final int position = buffer.position(); 194f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath 19590d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes if (buffer.isDirect()) { 196f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath bytesSent = sendtoBytes(fd, buffer, position, buffer.remaining(), flags, inetAddress, port); 19790d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } else { 198f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath bytesSent = sendtoBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + position, buffer.remaining(), flags, inetAddress, port); 19990d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 200f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath 201f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath maybeUpdateBufferPosition(buffer, position, bytesSent); 202f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath return bytesSent; 20390d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 20426010ab930a2cee3bf10b9612cf070183c21228bElliott Hughes public int sendto(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, InetAddress inetAddress, int port) throws ErrnoException, SocketException { 20590d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes // This indirection isn't strictly necessary, but ensures that our public interface is type safe. 20690d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return sendtoBytes(fd, bytes, byteOffset, byteCount, flags, inetAddress, port); 20790d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 20826010ab930a2cee3bf10b9612cf070183c21228bElliott Hughes private native int sendtoBytes(FileDescriptor fd, Object buffer, int byteOffset, int byteCount, int flags, InetAddress inetAddress, int port) throws ErrnoException, SocketException; 209396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native void setegid(int egid) throws ErrnoException; 210895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes public native void setenv(String name, String value, boolean overwrite) throws ErrnoException; 211396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native void seteuid(int euid) throws ErrnoException; 212396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native void setgid(int gid) throws ErrnoException; 2136c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes public native int setsid() throws ErrnoException; 214c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes public native void setsockoptByte(FileDescriptor fd, int level, int option, int value) throws ErrnoException; 215b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes public native void setsockoptIfreq(FileDescriptor fd, int level, int option, String value) throws ErrnoException; 216454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes public native void setsockoptInt(FileDescriptor fd, int level, int option, int value) throws ErrnoException; 217b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes public native void setsockoptIpMreqn(FileDescriptor fd, int level, int option, int value) throws ErrnoException; 218438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes public native void setsockoptGroupReq(FileDescriptor fd, int level, int option, StructGroupReq value) throws ErrnoException; 219df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller public native void setsockoptGroupSourceReq(FileDescriptor fd, int level, int option, StructGroupSourceReq value) throws ErrnoException; 220c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes public native void setsockoptLinger(FileDescriptor fd, int level, int option, StructLinger value) throws ErrnoException; 221c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes public native void setsockoptTimeval(FileDescriptor fd, int level, int option, StructTimeval value) throws ErrnoException; 222396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes public native void setuid(int uid) throws ErrnoException; 22359e4744d27231f260271dbbca406e0cc39768116Elliott Hughes public native void shutdown(FileDescriptor fd, int how) throws ErrnoException; 224454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes public native FileDescriptor socket(int domain, int type, int protocol) throws ErrnoException; 2253218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes public native void socketpair(int domain, int type, int protocol, FileDescriptor fd1, FileDescriptor fd2) throws ErrnoException; 22647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes public native StructStat stat(String path) throws ErrnoException; 227721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes public native StructStatVfs statvfs(String path) throws ErrnoException; 228ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes public native String strerror(int errno); 229763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes public native String strsignal(int signal); 230a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes public native void symlink(String oldPath, String newPath) throws ErrnoException; 2316fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes public native long sysconf(int name); 232bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig public native void tcdrain(FileDescriptor fd) throws ErrnoException; 233039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes public native void tcsendbreak(FileDescriptor fd, int duration) throws ErrnoException; 234c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevich public int umask(int mask) { 235c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevich if ((mask & 0777) != mask) { 236c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevich throw new IllegalArgumentException("Invalid umask: " + mask); 237c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevich } 238c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevich return umaskImpl(mask); 239c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevich } 240c79d3ef4dcd25f0e264bf957861e2632da93e62dNick Kralevich private native int umaskImpl(int mask); 2419b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes public native StructUtsname uname(); 242895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes public native void unsetenv(String name) throws ErrnoException; 2439e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes public native int waitpid(int pid, MutableInt status, int options) throws ErrnoException; 244f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller public int write(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException, InterruptedIOException { 245f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath final int bytesWritten; 246f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath final int position = buffer.position(); 24778c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes if (buffer.isDirect()) { 248f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath bytesWritten = writeBytes(fd, buffer, position, buffer.remaining()); 2490568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes } else { 250f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath bytesWritten = writeBytes(fd, NioUtils.unsafeArray(buffer), NioUtils.unsafeArrayOffset(buffer) + position, buffer.remaining()); 25178c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes } 252f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath 253f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath maybeUpdateBufferPosition(buffer, position, bytesWritten); 254f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath return bytesWritten; 25578c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes } 256f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller public int write(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException, InterruptedIOException { 2570568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes // This indirection isn't strictly necessary, but ensures that our public interface is type safe. 2580568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes return writeBytes(fd, bytes, byteOffset, byteCount); 2590568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes } 260f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller private native int writeBytes(FileDescriptor fd, Object buffer, int offset, int byteCount) throws ErrnoException, InterruptedIOException; 261f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller public native int writev(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException, InterruptedIOException; 262f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath 263f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath private static void maybeUpdateBufferPosition(ByteBuffer buffer, int originalPosition, int bytesReadOrWritten) { 264f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath if (bytesReadOrWritten > 0) { 265f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath buffer.position(bytesReadOrWritten + originalPosition); 266f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath } 267f3b61eaf1931ae8393e54202a717334a4971ebdfNarayan Kamath } 268ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 269