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 android.system; 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 import libcore.io.Libcore; 43 44 /** 45 * Access to low-level system functionality. Most of these are system calls. Most users will want 46 * to use higher-level APIs where available, but this class provides access to the underlying 47 * primitives used to implement the higher-level APIs. 48 * 49 * <p>The corresponding constants can be found in {@link OsConstants}. 50 */ 51 public final class Os { 52 private Os() {} 53 54 /** 55 * See <a href="http://man7.org/linux/man-pages/man2/accept.2.html">accept(2)</a>. 56 */ 57 public static FileDescriptor accept(FileDescriptor fd, InetSocketAddress peerAddress) throws ErrnoException, SocketException { return Libcore.os.accept(fd, peerAddress); } 58 59 /** 60 * See <a href="http://man7.org/linux/man-pages/man2/access.2.html">access(2)</a>. 61 */ 62 public static boolean access(String path, int mode) throws ErrnoException { return Libcore.os.access(path, mode); } 63 64 /** @hide */ public static InetAddress[] android_getaddrinfo(String node, StructAddrinfo hints, int netId) throws GaiException { return Libcore.os.android_getaddrinfo(node, hints, netId); } 65 66 /** 67 * See <a href="http://man7.org/linux/man-pages/man2/bind.2.html">bind(2)</a>. 68 */ 69 public static void bind(FileDescriptor fd, InetAddress address, int port) throws ErrnoException, SocketException { Libcore.os.bind(fd, address, port); } 70 71 /** 72 * See <a href="http://man7.org/linux/man-pages/man2/chmod.2.html">chmod(2)</a>. 73 */ 74 public static void chmod(String path, int mode) throws ErrnoException { Libcore.os.chmod(path, mode); } 75 76 /** 77 * See <a href="http://man7.org/linux/man-pages/man2/chown.2.html">chown(2)</a>. 78 */ 79 public static void chown(String path, int uid, int gid) throws ErrnoException { Libcore.os.chown(path, uid, gid); } 80 81 /** 82 * See <a href="http://man7.org/linux/man-pages/man2/close.2.html">close(2)</a>. 83 */ 84 public static void close(FileDescriptor fd) throws ErrnoException { Libcore.os.close(fd); } 85 86 /** 87 * See <a href="http://man7.org/linux/man-pages/man2/connect.2.html">connect(2)</a>. 88 */ 89 public static void connect(FileDescriptor fd, InetAddress address, int port) throws ErrnoException, SocketException { Libcore.os.connect(fd, address, port); } 90 91 /** 92 * See <a href="http://man7.org/linux/man-pages/man2/dup.2.html">dup(2)</a>. 93 */ 94 public static FileDescriptor dup(FileDescriptor oldFd) throws ErrnoException { return Libcore.os.dup(oldFd); } 95 96 /** 97 * See <a href="http://man7.org/linux/man-pages/man2/dup2.2.html">dup2(2)</a>. 98 */ 99 public static FileDescriptor dup2(FileDescriptor oldFd, int newFd) throws ErrnoException { return Libcore.os.dup2(oldFd, newFd); } 100 101 /** 102 * See <a href="http://man7.org/linux/man-pages/man3/environ.3.html">environ(3)</a>. 103 */ 104 public static String[] environ() { return Libcore.os.environ(); } 105 106 /** 107 * See <a href="http://man7.org/linux/man-pages/man2/execv.2.html">execv(2)</a>. 108 */ 109 public static void execv(String filename, String[] argv) throws ErrnoException { Libcore.os.execv(filename, argv); } 110 111 /** 112 * See <a href="http://man7.org/linux/man-pages/man2/execve.2.html">execve(2)</a>. 113 */ 114 public static void execve(String filename, String[] argv, String[] envp) throws ErrnoException { Libcore.os.execve(filename, argv, envp); } 115 116 /** 117 * See <a href="http://man7.org/linux/man-pages/man2/fchmod.2.html">fchmod(2)</a>. 118 */ 119 public static void fchmod(FileDescriptor fd, int mode) throws ErrnoException { Libcore.os.fchmod(fd, mode); } 120 121 /** 122 * See <a href="http://man7.org/linux/man-pages/man2/fchown.2.html">fchown(2)</a>. 123 */ 124 public static void fchown(FileDescriptor fd, int uid, int gid) throws ErrnoException { Libcore.os.fchown(fd, uid, gid); } 125 126 /** @hide */ public static int fcntlVoid(FileDescriptor fd, int cmd) throws ErrnoException { return Libcore.os.fcntlVoid(fd, cmd); } 127 /** @hide */ public static int fcntlLong(FileDescriptor fd, int cmd, long arg) throws ErrnoException { return Libcore.os.fcntlLong(fd, cmd, arg); } 128 /** @hide */ public static int fcntlFlock(FileDescriptor fd, int cmd, StructFlock arg) throws ErrnoException { return Libcore.os.fcntlFlock(fd, cmd, arg); } 129 130 /** 131 * See <a href="http://man7.org/linux/man-pages/man2/fdatasync.2.html">fdatasync(2)</a>. 132 */ 133 public static void fdatasync(FileDescriptor fd) throws ErrnoException { Libcore.os.fdatasync(fd); } 134 135 /** 136 * See <a href="http://man7.org/linux/man-pages/man2/fstat.2.html">fstat(2)</a>. 137 */ 138 public static StructStat fstat(FileDescriptor fd) throws ErrnoException { return Libcore.os.fstat(fd); } 139 140 /** 141 * See <a href="http://man7.org/linux/man-pages/man2/fstatvfs.2.html">fstatvfs(2)</a>. 142 */ 143 public static StructStatVfs fstatvfs(FileDescriptor fd) throws ErrnoException { return Libcore.os.fstatvfs(fd); } 144 145 /** 146 * See <a href="http://man7.org/linux/man-pages/man2/fsync.2.html">fsync(2)</a>. 147 */ 148 public static void fsync(FileDescriptor fd) throws ErrnoException { Libcore.os.fsync(fd); } 149 150 /** 151 * See <a href="http://man7.org/linux/man-pages/man2/ftruncate.2.html">ftruncate(2)</a>. 152 */ 153 public static void ftruncate(FileDescriptor fd, long length) throws ErrnoException { Libcore.os.ftruncate(fd, length); } 154 155 /** 156 * See <a href="http://man7.org/linux/man-pages/man3/gai_strerror.3.html">gai_strerror(3)</a>. 157 */ 158 public static String gai_strerror(int error) { return Libcore.os.gai_strerror(error); } 159 160 /** 161 * See <a href="http://man7.org/linux/man-pages/man2/getegid.2.html">getegid(2)</a>. 162 */ 163 public static int getegid() { return Libcore.os.getegid(); } 164 165 /** 166 * See <a href="http://man7.org/linux/man-pages/man2/geteuid.2.html">geteuid(2)</a>. 167 */ 168 public static int geteuid() { return Libcore.os.geteuid(); } 169 170 /** 171 * See <a href="http://man7.org/linux/man-pages/man2/getgid.2.html">getgid(2)</a>. 172 */ 173 public static int getgid() { return Libcore.os.getgid(); } 174 175 /** 176 * See <a href="http://man7.org/linux/man-pages/man3/getenv.3.html">getenv(3)</a>. 177 */ 178 public static String getenv(String name) { return Libcore.os.getenv(name); } 179 180 /** @hide */ public static String getnameinfo(InetAddress address, int flags) throws GaiException { return Libcore.os.getnameinfo(address, flags); } 181 182 /** 183 * See <a href="http://man7.org/linux/man-pages/man2/getpeername.2.html">getpeername(2)</a>. 184 */ 185 public static SocketAddress getpeername(FileDescriptor fd) throws ErrnoException { return Libcore.os.getpeername(fd); } 186 187 /** 188 * See <a href="http://man7.org/linux/man-pages/man2/getpid.2.html">getpid(2)</a>. 189 */ 190 public static int getpid() { return Libcore.os.getpid(); } 191 192 /** 193 * See <a href="http://man7.org/linux/man-pages/man2/getppid.2.html">getppid(2)</a>. 194 */ 195 public static int getppid() { return Libcore.os.getppid(); } 196 197 /** @hide */ public static StructPasswd getpwnam(String name) throws ErrnoException { return Libcore.os.getpwnam(name); } 198 199 /** @hide */ public static StructPasswd getpwuid(int uid) throws ErrnoException { return Libcore.os.getpwuid(uid); } 200 201 /** 202 * See <a href="http://man7.org/linux/man-pages/man2/getsockname.2.html">getsockname(2)</a>. 203 */ 204 public static SocketAddress getsockname(FileDescriptor fd) throws ErrnoException { return Libcore.os.getsockname(fd); } 205 206 /** @hide */ public static int getsockoptByte(FileDescriptor fd, int level, int option) throws ErrnoException { return Libcore.os.getsockoptByte(fd, level, option); } 207 /** @hide */ public static InetAddress getsockoptInAddr(FileDescriptor fd, int level, int option) throws ErrnoException { return Libcore.os.getsockoptInAddr(fd, level, option); } 208 /** @hide */ public static int getsockoptInt(FileDescriptor fd, int level, int option) throws ErrnoException { return Libcore.os.getsockoptInt(fd, level, option); } 209 /** @hide */ public static StructLinger getsockoptLinger(FileDescriptor fd, int level, int option) throws ErrnoException { return Libcore.os.getsockoptLinger(fd, level, option); } 210 /** @hide */ public static StructTimeval getsockoptTimeval(FileDescriptor fd, int level, int option) throws ErrnoException { return Libcore.os.getsockoptTimeval(fd, level, option); } 211 /** @hide */ public static StructUcred getsockoptUcred(FileDescriptor fd, int level, int option) throws ErrnoException { return Libcore.os.getsockoptUcred(fd, level, option); } 212 213 /** 214 * See <a href="http://man7.org/linux/man-pages/man2/gettid.2.html">gettid(2)</a>. 215 */ 216 public static int gettid() { return Libcore.os.gettid(); } 217 218 /** 219 * See <a href="http://man7.org/linux/man-pages/man2/getuid.2.html">getuid(2)</a>. 220 */ 221 public static int getuid() { return Libcore.os.getuid(); } 222 223 /** 224 * See <a href="http://man7.org/linux/man-pages/man3/if_indextoname.3.html">if_indextoname(3)</a>. 225 */ 226 public static String if_indextoname(int index) { return Libcore.os.if_indextoname(index); } 227 228 /** 229 * See <a href="http://man7.org/linux/man-pages/man3/inet_pton.3.html">inet_pton(3)</a>. 230 */ 231 public static InetAddress inet_pton(int family, String address) { return Libcore.os.inet_pton(family, address); } 232 233 /** @hide */ public static InetAddress ioctlInetAddress(FileDescriptor fd, int cmd, String interfaceName) throws ErrnoException { return Libcore.os.ioctlInetAddress(fd, cmd, interfaceName); } 234 /** @hide */ public static int ioctlInt(FileDescriptor fd, int cmd, MutableInt arg) throws ErrnoException { return Libcore.os.ioctlInt(fd, cmd, arg); } 235 236 /** 237 * See <a href="http://man7.org/linux/man-pages/man3/isatty.3.html">isatty(3)</a>. 238 */ 239 public static boolean isatty(FileDescriptor fd) { return Libcore.os.isatty(fd); } 240 241 /** 242 * See <a href="http://man7.org/linux/man-pages/man2/kill.2.html">kill(2)</a>. 243 */ 244 public static void kill(int pid, int signal) throws ErrnoException { Libcore.os.kill(pid, signal); } 245 246 /** 247 * See <a href="http://man7.org/linux/man-pages/man2/lchown.2.html">lchown(2)</a>. 248 */ 249 public static void lchown(String path, int uid, int gid) throws ErrnoException { Libcore.os.lchown(path, uid, gid); } 250 251 /** 252 * See <a href="http://man7.org/linux/man-pages/man2/link.2.html">link(2)</a>. 253 */ 254 public static void link(String oldPath, String newPath) throws ErrnoException { Libcore.os.link(oldPath, newPath); } 255 256 /** 257 * See <a href="http://man7.org/linux/man-pages/man2/listen.2.html">listen(2)</a>. 258 */ 259 public static void listen(FileDescriptor fd, int backlog) throws ErrnoException { Libcore.os.listen(fd, backlog); } 260 261 /** 262 * See <a href="http://man7.org/linux/man-pages/man2/lseek.2.html">lseek(2)</a>. 263 */ 264 public static long lseek(FileDescriptor fd, long offset, int whence) throws ErrnoException { return Libcore.os.lseek(fd, offset, whence); } 265 266 /** 267 * See <a href="http://man7.org/linux/man-pages/man2/lstat.2.html">lstat(2)</a>. 268 */ 269 public static StructStat lstat(String path) throws ErrnoException { return Libcore.os.lstat(path); } 270 271 /** 272 * See <a href="http://man7.org/linux/man-pages/man2/mincore.2.html">mincore(2)</a>. 273 */ 274 public static void mincore(long address, long byteCount, byte[] vector) throws ErrnoException { Libcore.os.mincore(address, byteCount, vector); } 275 276 /** 277 * See <a href="http://man7.org/linux/man-pages/man2/mkdir.2.html">mkdir(2)</a>. 278 */ 279 public static void mkdir(String path, int mode) throws ErrnoException { Libcore.os.mkdir(path, mode); } 280 281 /** 282 * See <a href="http://man7.org/linux/man-pages/man3/mkfifo.3.html">mkfifo(3)</a>. 283 */ 284 public static void mkfifo(String path, int mode) throws ErrnoException { Libcore.os.mkfifo(path, mode); } 285 286 /** 287 * See <a href="http://man7.org/linux/man-pages/man2/mlock.2.html">mlock(2)</a>. 288 */ 289 public static void mlock(long address, long byteCount) throws ErrnoException { Libcore.os.mlock(address, byteCount); } 290 291 /** 292 * See <a href="http://man7.org/linux/man-pages/man2/mmap.2.html">mmap(2)</a>. 293 */ 294 public static long mmap(long address, long byteCount, int prot, int flags, FileDescriptor fd, long offset) throws ErrnoException { return Libcore.os.mmap(address, byteCount, prot, flags, fd, offset); } 295 296 /** 297 * See <a href="http://man7.org/linux/man-pages/man2/msync.2.html">msync(2)</a>. 298 */ 299 public static void msync(long address, long byteCount, int flags) throws ErrnoException { Libcore.os.msync(address, byteCount, flags); } 300 301 /** 302 * See <a href="http://man7.org/linux/man-pages/man2/munlock.2.html">munlock(2)</a>. 303 */ 304 public static void munlock(long address, long byteCount) throws ErrnoException { Libcore.os.munlock(address, byteCount); } 305 306 /** 307 * See <a href="http://man7.org/linux/man-pages/man2/munmap.2.html">munmap(2)</a>. 308 */ 309 public static void munmap(long address, long byteCount) throws ErrnoException { Libcore.os.munmap(address, byteCount); } 310 311 /** 312 * See <a href="http://man7.org/linux/man-pages/man2/open.2.html">open(2)</a>. 313 */ 314 public static FileDescriptor open(String path, int flags, int mode) throws ErrnoException { return Libcore.os.open(path, flags, mode); } 315 316 /** 317 * See <a href="http://man7.org/linux/man-pages/man2/pipe.2.html">pipe(2)</a>. 318 */ 319 public static FileDescriptor[] pipe() throws ErrnoException { return Libcore.os.pipe(); } 320 321 /** 322 * See <a href="http://man7.org/linux/man-pages/man2/poll.2.html">poll(2)</a>. 323 */ 324 public static int poll(StructPollfd[] fds, int timeoutMs) throws ErrnoException { return Libcore.os.poll(fds, timeoutMs); } 325 326 /** 327 * See <a href="http://man7.org/linux/man-pages/man2/posix_fallocate.2.html">posix_fallocate(2)</a>. 328 */ 329 public static void posix_fallocate(FileDescriptor fd, long offset, long length) throws ErrnoException { Libcore.os.posix_fallocate(fd, offset, length); } 330 331 /** 332 * See <a href="http://man7.org/linux/man-pages/man2/prctl.2.html">prctl(2)</a>. 333 */ 334 public static int prctl(int option, long arg2, long arg3, long arg4, long arg5) throws ErrnoException { return Libcore.os.prctl(option, arg2, arg3, arg4, arg5); }; 335 336 /** 337 * See <a href="http://man7.org/linux/man-pages/man2/pread.2.html">pread(2)</a>. 338 */ 339 public static int pread(FileDescriptor fd, ByteBuffer buffer, long offset) throws ErrnoException, InterruptedIOException { return Libcore.os.pread(fd, buffer, offset); } 340 341 /** 342 * See <a href="http://man7.org/linux/man-pages/man2/pread.2.html">pread(2)</a>. 343 */ 344 public static int pread(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset) throws ErrnoException, InterruptedIOException { return Libcore.os.pread(fd, bytes, byteOffset, byteCount, offset); } 345 346 /** 347 * See <a href="http://man7.org/linux/man-pages/man2/pwrite.2.html">pwrite(2)</a>. 348 */ 349 public static int pwrite(FileDescriptor fd, ByteBuffer buffer, long offset) throws ErrnoException, InterruptedIOException { return Libcore.os.pwrite(fd, buffer, offset); } 350 351 /** 352 * See <a href="http://man7.org/linux/man-pages/man2/pwrite.2.html">pwrite(2)</a>. 353 */ 354 public static int pwrite(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset) throws ErrnoException, InterruptedIOException { return Libcore.os.pwrite(fd, bytes, byteOffset, byteCount, offset); } 355 356 /** 357 * See <a href="http://man7.org/linux/man-pages/man2/read.2.html">read(2)</a>. 358 */ 359 public static int read(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException, InterruptedIOException { return Libcore.os.read(fd, buffer); } 360 361 /** 362 * See <a href="http://man7.org/linux/man-pages/man2/read.2.html">read(2)</a>. 363 */ 364 public static int read(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException, InterruptedIOException { return Libcore.os.read(fd, bytes, byteOffset, byteCount); } 365 366 /** 367 * See <a href="http://man7.org/linux/man-pages/man2/readlink.2.html">readlink(2)</a>. 368 */ 369 public static String readlink(String path) throws ErrnoException { return Libcore.os.readlink(path); } 370 371 /** 372 * See <a href="http://man7.org/linux/man-pages/man2/readv.2.html">readv(2)</a>. 373 */ 374 public static int readv(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException, InterruptedIOException { return Libcore.os.readv(fd, buffers, offsets, byteCounts); } 375 376 /** 377 * See <a href="http://man7.org/linux/man-pages/man2/recvfrom.2.html">recvfrom(2)</a>. 378 */ 379 public static int recvfrom(FileDescriptor fd, ByteBuffer buffer, int flags, InetSocketAddress srcAddress) throws ErrnoException, SocketException { return Libcore.os.recvfrom(fd, buffer, flags, srcAddress); } 380 381 /** 382 * See <a href="http://man7.org/linux/man-pages/man2/recvfrom.2.html">recvfrom(2)</a>. 383 */ 384 public static int recvfrom(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, InetSocketAddress srcAddress) throws ErrnoException, SocketException { return Libcore.os.recvfrom(fd, bytes, byteOffset, byteCount, flags, srcAddress); } 385 386 /** 387 * See <a href="http://man7.org/linux/man-pages/man3/remove.3.html">remove(3)</a>. 388 */ 389 public static void remove(String path) throws ErrnoException { Libcore.os.remove(path); } 390 391 /** 392 * See <a href="http://man7.org/linux/man-pages/man2/rename.2.html">rename(2)</a>. 393 */ 394 public static void rename(String oldPath, String newPath) throws ErrnoException { Libcore.os.rename(oldPath, newPath); } 395 396 /** 397 * See <a href="http://man7.org/linux/man-pages/man2/sendfile.2.html">sendfile(2)</a>. 398 */ 399 public static long sendfile(FileDescriptor outFd, FileDescriptor inFd, MutableLong inOffset, long byteCount) throws ErrnoException { return Libcore.os.sendfile(outFd, inFd, inOffset, byteCount); } 400 401 /** 402 * See <a href="http://man7.org/linux/man-pages/man2/sendto.2.html">sendto(2)</a>. 403 */ 404 public static int sendto(FileDescriptor fd, ByteBuffer buffer, int flags, InetAddress inetAddress, int port) throws ErrnoException, SocketException { return Libcore.os.sendto(fd, buffer, flags, inetAddress, port); } 405 406 /** 407 * See <a href="http://man7.org/linux/man-pages/man2/sendto.2.html">sendto(2)</a>. 408 */ 409 public static int sendto(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, InetAddress inetAddress, int port) throws ErrnoException, SocketException { return Libcore.os.sendto(fd, bytes, byteOffset, byteCount, flags, inetAddress, port); } 410 411 /** 412 * See <a href="http://man7.org/linux/man-pages/man2/setegid.2.html">setegid(2)</a>. 413 */ 414 public static void setegid(int egid) throws ErrnoException { Libcore.os.setegid(egid); } 415 416 /** 417 * See <a href="http://man7.org/linux/man-pages/man3/setenv.3.html">setenv(3)</a>. 418 */ 419 public static void setenv(String name, String value, boolean overwrite) throws ErrnoException { Libcore.os.setenv(name, value, overwrite); } 420 421 /** 422 * See <a href="http://man7.org/linux/man-pages/man2/seteuid.2.html">seteuid(2)</a>. 423 */ 424 public static void seteuid(int euid) throws ErrnoException { Libcore.os.seteuid(euid); } 425 426 /** 427 * See <a href="http://man7.org/linux/man-pages/man2/setgid.2.html">setgid(2)</a>. 428 */ 429 public static void setgid(int gid) throws ErrnoException { Libcore.os.setgid(gid); } 430 431 /** 432 * See <a href="http://man7.org/linux/man-pages/man2/setsid.2.html">setsid(2)</a>. 433 */ 434 public static int setsid() throws ErrnoException { return Libcore.os.setsid(); } 435 436 /** @hide */ public static void setsockoptByte(FileDescriptor fd, int level, int option, int value) throws ErrnoException { Libcore.os.setsockoptByte(fd, level, option, value); } 437 /** @hide */ public static void setsockoptIfreq(FileDescriptor fd, int level, int option, String value) throws ErrnoException { Libcore.os.setsockoptIfreq(fd, level, option, value); } 438 /** @hide */ public static void setsockoptInt(FileDescriptor fd, int level, int option, int value) throws ErrnoException { Libcore.os.setsockoptInt(fd, level, option, value); } 439 /** @hide */ public static void setsockoptIpMreqn(FileDescriptor fd, int level, int option, int value) throws ErrnoException { Libcore.os.setsockoptIpMreqn(fd, level, option, value); } 440 /** @hide */ public static void setsockoptGroupReq(FileDescriptor fd, int level, int option, StructGroupReq value) throws ErrnoException { Libcore.os.setsockoptGroupReq(fd, level, option, value); } 441 /** @hide */ public static void setsockoptGroupSourceReq(FileDescriptor fd, int level, int option, StructGroupSourceReq value) throws ErrnoException { Libcore.os.setsockoptGroupSourceReq(fd, level, option, value); } 442 /** @hide */ public static void setsockoptLinger(FileDescriptor fd, int level, int option, StructLinger value) throws ErrnoException { Libcore.os.setsockoptLinger(fd, level, option, value); } 443 /** @hide */ public static void setsockoptTimeval(FileDescriptor fd, int level, int option, StructTimeval value) throws ErrnoException { Libcore.os.setsockoptTimeval(fd, level, option, value); } 444 445 /** 446 * See <a href="http://man7.org/linux/man-pages/man2/setuid.2.html">setuid(2)</a>. 447 */ 448 public static void setuid(int uid) throws ErrnoException { Libcore.os.setuid(uid); } 449 450 /** 451 * See <a href="http://man7.org/linux/man-pages/man2/shutdown.2.html">shutdown(2)</a>. 452 */ 453 public static void shutdown(FileDescriptor fd, int how) throws ErrnoException { Libcore.os.shutdown(fd, how); } 454 455 /** 456 * See <a href="http://man7.org/linux/man-pages/man2/socket.2.html">socket(2)</a>. 457 */ 458 public static FileDescriptor socket(int domain, int type, int protocol) throws ErrnoException { return Libcore.os.socket(domain, type, protocol); } 459 460 /** 461 * See <a href="http://man7.org/linux/man-pages/man2/socketpair.2.html">socketpair(2)</a>. 462 */ 463 public static void socketpair(int domain, int type, int protocol, FileDescriptor fd1, FileDescriptor fd2) throws ErrnoException { Libcore.os.socketpair(domain, type, protocol, fd1, fd2); } 464 465 /** 466 * See <a href="http://man7.org/linux/man-pages/man2/stat.2.html">stat(2)</a>. 467 */ 468 public static StructStat stat(String path) throws ErrnoException { return Libcore.os.stat(path); } 469 470 /** 471 * See <a href="http://man7.org/linux/man-pages/man2/statvfs.2.html">statvfs(2)</a>. 472 */ 473 public static StructStatVfs statvfs(String path) throws ErrnoException { return Libcore.os.statvfs(path); } 474 475 /** 476 * See <a href="http://man7.org/linux/man-pages/man3/strerror.3.html">strerror(2)</a>. 477 */ 478 public static String strerror(int errno) { return Libcore.os.strerror(errno); } 479 480 /** 481 * See <a href="http://man7.org/linux/man-pages/man3/strsignal.3.html">strsignal(3)</a>. 482 */ 483 public static String strsignal(int signal) { return Libcore.os.strsignal(signal); } 484 485 /** 486 * See <a href="http://man7.org/linux/man-pages/man2/symlink.2.html">symlink(2)</a>. 487 */ 488 public static void symlink(String oldPath, String newPath) throws ErrnoException { Libcore.os.symlink(oldPath, newPath); } 489 490 /** 491 * See <a href="http://man7.org/linux/man-pages/man3/sysconf.3.html">sysconf(3)</a>. 492 */ 493 public static long sysconf(int name) { return Libcore.os.sysconf(name); } 494 495 /** 496 * See <a href="http://man7.org/linux/man-pages/man3/tcdrain.3.html">tcdrain(3)</a>. 497 */ 498 public static void tcdrain(FileDescriptor fd) throws ErrnoException { Libcore.os.tcdrain(fd); } 499 500 /** 501 * See <a href="http://man7.org/linux/man-pages/man3/tcsendbreak.3.html">tcsendbreak(3)</a>. 502 */ 503 public static void tcsendbreak(FileDescriptor fd, int duration) throws ErrnoException { Libcore.os.tcsendbreak(fd, duration); } 504 505 /** 506 * See <a href="http://man7.org/linux/man-pages/man2/umask.2.html">umask(2)</a>. 507 */ 508 public static int umask(int mask) { return Libcore.os.umask(mask); } 509 510 /** 511 * See <a href="http://man7.org/linux/man-pages/man2/uname.2.html">uname(2)</a>. 512 */ 513 public static StructUtsname uname() { return Libcore.os.uname(); } 514 515 /** 516 * See <a href="http://man7.org/linux/man-pages/man3/unsetenv.3.html">unsetenv(3)</a>. 517 */ 518 public static void unsetenv(String name) throws ErrnoException { Libcore.os.unsetenv(name); } 519 520 /** 521 * See <a href="http://man7.org/linux/man-pages/man2/waitpid.2.html">waitpid(2)</a>. 522 */ 523 public static int waitpid(int pid, MutableInt status, int options) throws ErrnoException { return Libcore.os.waitpid(pid, status, options); } 524 525 /** 526 * See <a href="http://man7.org/linux/man-pages/man2/write.2.html">write(2)</a>. 527 */ 528 public static int write(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException, InterruptedIOException { return Libcore.os.write(fd, buffer); } 529 530 /** 531 * See <a href="http://man7.org/linux/man-pages/man2/write.2.html">write(2)</a>. 532 */ 533 public static int write(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException, InterruptedIOException { return Libcore.os.write(fd, bytes, byteOffset, byteCount); } 534 535 /** 536 * See <a href="http://man7.org/linux/man-pages/man2/writev.2.html">writev(2)</a>. 537 */ 538 public static int writev(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException, InterruptedIOException { return Libcore.os.writev(fd, buffers, offsets, byteCounts); } 539 } 540