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.util.MutableInt;
20 import android.util.MutableLong;
21 import java.io.FileDescriptor;
22 import java.io.InterruptedIOException;
23 import java.net.InetAddress;
24 import java.net.InetSocketAddress;
25 import java.net.SocketAddress;
26 import java.net.SocketException;
27 import java.nio.ByteBuffer;
28 import libcore.io.Libcore;
29 
30 /**
31  * Access to low-level system functionality. Most of these are system calls. Most users will want
32  * to use higher-level APIs where available, but this class provides access to the underlying
33  * primitives used to implement the higher-level APIs.
34  *
35  * <p>The corresponding constants can be found in {@link OsConstants}.
36  */
37 public final class Os {
Os()38   private Os() {}
39 
40   /**
41    * See <a href="http://man7.org/linux/man-pages/man2/accept.2.html">accept(2)</a>.
42    */
accept(FileDescriptor fd, InetSocketAddress peerAddress)43   public static FileDescriptor accept(FileDescriptor fd, InetSocketAddress peerAddress) throws ErrnoException, SocketException { return Libcore.os.accept(fd, peerAddress); }
44 
45   /**
46    * TODO Change the public API by removing the overload above and unhiding this version.
47    * @hide
48    */
accept(FileDescriptor fd, SocketAddress peerAddress)49   public static FileDescriptor accept(FileDescriptor fd, SocketAddress peerAddress) throws ErrnoException, SocketException { return Libcore.os.accept(fd, peerAddress); }
50 
51   /**
52    * See <a href="http://man7.org/linux/man-pages/man2/access.2.html">access(2)</a>.
53    */
access(String path, int mode)54   public static boolean access(String path, int mode) throws ErrnoException { return Libcore.os.access(path, mode); }
55 
android_getaddrinfo(String node, StructAddrinfo hints, int netId)56   /** @hide */ public static InetAddress[] android_getaddrinfo(String node, StructAddrinfo hints, int netId) throws GaiException { return Libcore.os.android_getaddrinfo(node, hints, netId); }
57 
58   /**
59    * See <a href="http://man7.org/linux/man-pages/man2/bind.2.html">bind(2)</a>.
60    */
bind(FileDescriptor fd, InetAddress address, int port)61   public static void bind(FileDescriptor fd, InetAddress address, int port) throws ErrnoException, SocketException { Libcore.os.bind(fd, address, port); }
62 
bind(FileDescriptor fd, SocketAddress address)63   /** @hide */ public static void bind(FileDescriptor fd, SocketAddress address) throws ErrnoException, SocketException { Libcore.os.bind(fd, address); }
64 
65   /**
66    * See <a href="http://man7.org/linux/man-pages/man2/chmod.2.html">chmod(2)</a>.
67    */
chmod(String path, int mode)68   public static void chmod(String path, int mode) throws ErrnoException { Libcore.os.chmod(path, mode); }
69 
70   /**
71    * See <a href="http://man7.org/linux/man-pages/man2/chown.2.html">chown(2)</a>.
72    */
chown(String path, int uid, int gid)73   public static void chown(String path, int uid, int gid) throws ErrnoException { Libcore.os.chown(path, uid, gid); }
74 
75   /**
76    * See <a href="http://man7.org/linux/man-pages/man2/close.2.html">close(2)</a>.
77    */
close(FileDescriptor fd)78   public static void close(FileDescriptor fd) throws ErrnoException { Libcore.os.close(fd); }
79 
80   /**
81    * See <a href="http://man7.org/linux/man-pages/man2/connect.2.html">connect(2)</a>.
82    */
connect(FileDescriptor fd, InetAddress address, int port)83   public static void connect(FileDescriptor fd, InetAddress address, int port) throws ErrnoException, SocketException { Libcore.os.connect(fd, address, port); }
84 
connect(FileDescriptor fd, SocketAddress address)85   /** @hide */ public static void connect(FileDescriptor fd, SocketAddress address) throws ErrnoException, SocketException { Libcore.os.connect(fd, address); }
86 
87   /**
88    * See <a href="http://man7.org/linux/man-pages/man2/dup.2.html">dup(2)</a>.
89    */
dup(FileDescriptor oldFd)90   public static FileDescriptor dup(FileDescriptor oldFd) throws ErrnoException { return Libcore.os.dup(oldFd); }
91 
92   /**
93    * See <a href="http://man7.org/linux/man-pages/man2/dup2.2.html">dup2(2)</a>.
94    */
dup2(FileDescriptor oldFd, int newFd)95   public static FileDescriptor dup2(FileDescriptor oldFd, int newFd) throws ErrnoException { return Libcore.os.dup2(oldFd, newFd); }
96 
97   /**
98    * See <a href="http://man7.org/linux/man-pages/man3/environ.3.html">environ(3)</a>.
99    */
environ()100   public static String[] environ() { return Libcore.os.environ(); }
101 
102   /**
103    * See <a href="http://man7.org/linux/man-pages/man2/execv.2.html">execv(2)</a>.
104    */
execv(String filename, String[] argv)105   public static void execv(String filename, String[] argv) throws ErrnoException { Libcore.os.execv(filename, argv); }
106 
107   /**
108    * See <a href="http://man7.org/linux/man-pages/man2/execve.2.html">execve(2)</a>.
109    */
execve(String filename, String[] argv, String[] envp)110   public static void execve(String filename, String[] argv, String[] envp) throws ErrnoException { Libcore.os.execve(filename, argv, envp); }
111 
112   /**
113    * See <a href="http://man7.org/linux/man-pages/man2/fchmod.2.html">fchmod(2)</a>.
114    */
fchmod(FileDescriptor fd, int mode)115   public static void fchmod(FileDescriptor fd, int mode) throws ErrnoException { Libcore.os.fchmod(fd, mode); }
116 
117   /**
118    * See <a href="http://man7.org/linux/man-pages/man2/fchown.2.html">fchown(2)</a>.
119    */
fchown(FileDescriptor fd, int uid, int gid)120   public static void fchown(FileDescriptor fd, int uid, int gid) throws ErrnoException { Libcore.os.fchown(fd, uid, gid); }
121 
fcntlFlock(FileDescriptor fd, int cmd, StructFlock arg)122   /** @hide */ public static int fcntlFlock(FileDescriptor fd, int cmd, StructFlock arg) throws ErrnoException, InterruptedIOException { return Libcore.os.fcntlFlock(fd, cmd, arg); }
fcntlInt(FileDescriptor fd, int cmd, int arg)123   /** @hide */ public static int fcntlInt(FileDescriptor fd, int cmd, int arg) throws ErrnoException { return Libcore.os.fcntlInt(fd, cmd, arg); }
fcntlVoid(FileDescriptor fd, int cmd)124   /** @hide */ public static int fcntlVoid(FileDescriptor fd, int cmd) throws ErrnoException { return Libcore.os.fcntlVoid(fd, cmd); }
125 
126   /**
127    * See <a href="http://man7.org/linux/man-pages/man2/fdatasync.2.html">fdatasync(2)</a>.
128    */
fdatasync(FileDescriptor fd)129   public static void fdatasync(FileDescriptor fd) throws ErrnoException { Libcore.os.fdatasync(fd); }
130 
131   /**
132    * See <a href="http://man7.org/linux/man-pages/man2/fstat.2.html">fstat(2)</a>.
133    */
fstat(FileDescriptor fd)134   public static StructStat fstat(FileDescriptor fd) throws ErrnoException { return Libcore.os.fstat(fd); }
135 
136   /**
137    * See <a href="http://man7.org/linux/man-pages/man2/fstatvfs.2.html">fstatvfs(2)</a>.
138    */
fstatvfs(FileDescriptor fd)139   public static StructStatVfs fstatvfs(FileDescriptor fd) throws ErrnoException { return Libcore.os.fstatvfs(fd); }
140 
141   /**
142    * See <a href="http://man7.org/linux/man-pages/man2/fsync.2.html">fsync(2)</a>.
143    */
fsync(FileDescriptor fd)144   public static void fsync(FileDescriptor fd) throws ErrnoException { Libcore.os.fsync(fd); }
145 
146   /**
147    * See <a href="http://man7.org/linux/man-pages/man2/ftruncate.2.html">ftruncate(2)</a>.
148    */
ftruncate(FileDescriptor fd, long length)149   public static void ftruncate(FileDescriptor fd, long length) throws ErrnoException { Libcore.os.ftruncate(fd, length); }
150 
151   /**
152    * See <a href="http://man7.org/linux/man-pages/man3/gai_strerror.3.html">gai_strerror(3)</a>.
153    */
gai_strerror(int error)154   public static String gai_strerror(int error) { return Libcore.os.gai_strerror(error); }
155 
156   /**
157    * See <a href="http://man7.org/linux/man-pages/man2/getegid.2.html">getegid(2)</a>.
158    */
getegid()159   public static int getegid() { return Libcore.os.getegid(); }
160 
161   /**
162    * See <a href="http://man7.org/linux/man-pages/man2/geteuid.2.html">geteuid(2)</a>.
163    */
geteuid()164   public static int geteuid() { return Libcore.os.geteuid(); }
165 
166   /**
167    * See <a href="http://man7.org/linux/man-pages/man2/getgid.2.html">getgid(2)</a>.
168    */
getgid()169   public static int getgid() { return Libcore.os.getgid(); }
170 
171   /**
172    * See <a href="http://man7.org/linux/man-pages/man3/getenv.3.html">getenv(3)</a>.
173    */
getenv(String name)174   public static String getenv(String name) { return Libcore.os.getenv(name); }
175 
getnameinfo(InetAddress address, int flags)176   /** @hide */ public static String getnameinfo(InetAddress address, int flags) throws GaiException { return Libcore.os.getnameinfo(address, flags); }
177 
178   /**
179    * See <a href="http://man7.org/linux/man-pages/man2/getpeername.2.html">getpeername(2)</a>.
180    */
getpeername(FileDescriptor fd)181   public static SocketAddress getpeername(FileDescriptor fd) throws ErrnoException { return Libcore.os.getpeername(fd); }
182 
183   /**
184    * See <a href="http://man7.org/linux/man-pages/man2/getpgid.2.html">getpgid(2)</a>.
185    */
getpgid(int pid)186   /** @hide */ public static int getpgid(int pid) throws ErrnoException { return Libcore.os.getpgid(pid); }
187 
188   /**
189    * See <a href="http://man7.org/linux/man-pages/man2/getpid.2.html">getpid(2)</a>.
190    */
getpid()191   public static int getpid() { return Libcore.os.getpid(); }
192 
193   /**
194    * See <a href="http://man7.org/linux/man-pages/man2/getppid.2.html">getppid(2)</a>.
195    */
getppid()196   public static int getppid() { return Libcore.os.getppid(); }
197 
getpwnam(String name)198   /** @hide */ public static StructPasswd getpwnam(String name) throws ErrnoException { return Libcore.os.getpwnam(name); }
199 
getpwuid(int uid)200   /** @hide */ public static StructPasswd getpwuid(int uid) throws ErrnoException { return Libcore.os.getpwuid(uid); }
201 
202   /**
203    * See <a href="http://man7.org/linux/man-pages/man2/getsockname.2.html">getsockname(2)</a>.
204    */
getsockname(FileDescriptor fd)205   public static SocketAddress getsockname(FileDescriptor fd) throws ErrnoException { return Libcore.os.getsockname(fd); }
206 
getsockoptByte(FileDescriptor fd, int level, int option)207   /** @hide */ public static int getsockoptByte(FileDescriptor fd, int level, int option) throws ErrnoException { return Libcore.os.getsockoptByte(fd, level, option); }
getsockoptInAddr(FileDescriptor fd, int level, int option)208   /** @hide */ public static InetAddress getsockoptInAddr(FileDescriptor fd, int level, int option) throws ErrnoException { return Libcore.os.getsockoptInAddr(fd, level, option); }
getsockoptInt(FileDescriptor fd, int level, int option)209   /** @hide */ public static int getsockoptInt(FileDescriptor fd, int level, int option) throws ErrnoException { return Libcore.os.getsockoptInt(fd, level, option); }
getsockoptLinger(FileDescriptor fd, int level, int option)210   /** @hide */ public static StructLinger getsockoptLinger(FileDescriptor fd, int level, int option) throws ErrnoException { return Libcore.os.getsockoptLinger(fd, level, option); }
getsockoptTimeval(FileDescriptor fd, int level, int option)211   /** @hide */ public static StructTimeval getsockoptTimeval(FileDescriptor fd, int level, int option) throws ErrnoException { return Libcore.os.getsockoptTimeval(fd, level, option); }
getsockoptUcred(FileDescriptor fd, int level, int option)212   /** @hide */ public static StructUcred getsockoptUcred(FileDescriptor fd, int level, int option) throws ErrnoException { return Libcore.os.getsockoptUcred(fd, level, option); }
213 
214   /**
215    * See <a href="http://man7.org/linux/man-pages/man2/gettid.2.html">gettid(2)</a>.
216    */
gettid()217   public static int gettid() { return Libcore.os.gettid(); }
218 
219   /**
220    * See <a href="http://man7.org/linux/man-pages/man2/getuid.2.html">getuid(2)</a>.
221    */
getuid()222   public static int getuid() { return Libcore.os.getuid(); }
223 
getxattr(String path, String name, byte[] outValue)224   /** @hide */ public static int getxattr(String path, String name, byte[] outValue) throws ErrnoException { return Libcore.os.getxattr(path, name, outValue); }
225 
226   /**
227    * See <a href="http://man7.org/linux/man-pages/man3/if_indextoname.3.html">if_indextoname(3)</a>.
228    */
if_indextoname(int index)229   public static String if_indextoname(int index) { return Libcore.os.if_indextoname(index); }
230 
231   /**
232    * See <a href="http://man7.org/linux/man-pages/man3/inet_pton.3.html">inet_pton(3)</a>.
233    */
inet_pton(int family, String address)234   public static InetAddress inet_pton(int family, String address) { return Libcore.os.inet_pton(family, address); }
235 
ioctlInetAddress(FileDescriptor fd, int cmd, String interfaceName)236   /** @hide */ public static InetAddress ioctlInetAddress(FileDescriptor fd, int cmd, String interfaceName) throws ErrnoException { return Libcore.os.ioctlInetAddress(fd, cmd, interfaceName); }
ioctlInt(FileDescriptor fd, int cmd, MutableInt arg)237   /** @hide */ public static int ioctlInt(FileDescriptor fd, int cmd, MutableInt arg) throws ErrnoException { return Libcore.os.ioctlInt(fd, cmd, arg); }
238 
239   /**
240    * See <a href="http://man7.org/linux/man-pages/man3/isatty.3.html">isatty(3)</a>.
241    */
isatty(FileDescriptor fd)242   public static boolean isatty(FileDescriptor fd) { return Libcore.os.isatty(fd); }
243 
244   /**
245    * See <a href="http://man7.org/linux/man-pages/man2/kill.2.html">kill(2)</a>.
246    */
kill(int pid, int signal)247   public static void kill(int pid, int signal) throws ErrnoException { Libcore.os.kill(pid, signal); }
248 
249   /**
250    * See <a href="http://man7.org/linux/man-pages/man2/lchown.2.html">lchown(2)</a>.
251    */
lchown(String path, int uid, int gid)252   public static void lchown(String path, int uid, int gid) throws ErrnoException { Libcore.os.lchown(path, uid, gid); }
253 
254   /**
255    * See <a href="http://man7.org/linux/man-pages/man2/link.2.html">link(2)</a>.
256    */
link(String oldPath, String newPath)257   public static void link(String oldPath, String newPath) throws ErrnoException { Libcore.os.link(oldPath, newPath); }
258 
259   /**
260    * See <a href="http://man7.org/linux/man-pages/man2/listen.2.html">listen(2)</a>.
261    */
listen(FileDescriptor fd, int backlog)262   public static void listen(FileDescriptor fd, int backlog) throws ErrnoException { Libcore.os.listen(fd, backlog); }
263 
264   /**
265    * See <a href="http://man7.org/linux/man-pages/man2/lseek.2.html">lseek(2)</a>.
266    */
lseek(FileDescriptor fd, long offset, int whence)267   public static long lseek(FileDescriptor fd, long offset, int whence) throws ErrnoException { return Libcore.os.lseek(fd, offset, whence); }
268 
269   /**
270    * See <a href="http://man7.org/linux/man-pages/man2/lstat.2.html">lstat(2)</a>.
271    */
lstat(String path)272   public static StructStat lstat(String path) throws ErrnoException { return Libcore.os.lstat(path); }
273 
274   /**
275    * See <a href="http://man7.org/linux/man-pages/man2/mincore.2.html">mincore(2)</a>.
276    */
mincore(long address, long byteCount, byte[] vector)277   public static void mincore(long address, long byteCount, byte[] vector) throws ErrnoException { Libcore.os.mincore(address, byteCount, vector); }
278 
279   /**
280    * See <a href="http://man7.org/linux/man-pages/man2/mkdir.2.html">mkdir(2)</a>.
281    */
mkdir(String path, int mode)282   public static void mkdir(String path, int mode) throws ErrnoException { Libcore.os.mkdir(path, mode); }
283 
284   /**
285    * See <a href="http://man7.org/linux/man-pages/man3/mkfifo.3.html">mkfifo(3)</a>.
286    */
mkfifo(String path, int mode)287   public static void mkfifo(String path, int mode) throws ErrnoException { Libcore.os.mkfifo(path, mode); }
288 
289   /**
290    * See <a href="http://man7.org/linux/man-pages/man2/mlock.2.html">mlock(2)</a>.
291    */
mlock(long address, long byteCount)292   public static void mlock(long address, long byteCount) throws ErrnoException { Libcore.os.mlock(address, byteCount); }
293 
294   /**
295    * See <a href="http://man7.org/linux/man-pages/man2/mmap.2.html">mmap(2)</a>.
296    */
mmap(long address, long byteCount, int prot, int flags, FileDescriptor fd, long offset)297   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); }
298 
299   /**
300    * See <a href="http://man7.org/linux/man-pages/man2/msync.2.html">msync(2)</a>.
301    */
msync(long address, long byteCount, int flags)302   public static void msync(long address, long byteCount, int flags) throws ErrnoException { Libcore.os.msync(address, byteCount, flags); }
303 
304   /**
305    * See <a href="http://man7.org/linux/man-pages/man2/munlock.2.html">munlock(2)</a>.
306    */
munlock(long address, long byteCount)307   public static void munlock(long address, long byteCount) throws ErrnoException { Libcore.os.munlock(address, byteCount); }
308 
309   /**
310    * See <a href="http://man7.org/linux/man-pages/man2/munmap.2.html">munmap(2)</a>.
311    */
munmap(long address, long byteCount)312   public static void munmap(long address, long byteCount) throws ErrnoException { Libcore.os.munmap(address, byteCount); }
313 
314   /**
315    * See <a href="http://man7.org/linux/man-pages/man2/open.2.html">open(2)</a>.
316    */
open(String path, int flags, int mode)317   public static FileDescriptor open(String path, int flags, int mode) throws ErrnoException { return Libcore.os.open(path, flags, mode); }
318 
319   /**
320    * See <a href="http://man7.org/linux/man-pages/man2/pipe.2.html">pipe(2)</a>.
321    */
pipe()322   public static FileDescriptor[] pipe() throws ErrnoException { return Libcore.os.pipe2(0); }
323 
pipe2(int flags)324   /** @hide */ public static FileDescriptor[] pipe2(int flags) throws ErrnoException { return Libcore.os.pipe2(flags); }
325 
326   /**
327    * See <a href="http://man7.org/linux/man-pages/man2/poll.2.html">poll(2)</a>.
328    *
329    * <p>Note that in Lollipop this could throw an {@code ErrnoException} with {@code EINTR}.
330    * In later releases, the implementation will automatically just restart the system call with
331    * an appropriately reduced timeout.
332    */
poll(StructPollfd[] fds, int timeoutMs)333   public static int poll(StructPollfd[] fds, int timeoutMs) throws ErrnoException { return Libcore.os.poll(fds, timeoutMs); }
334 
335   /**
336    * See <a href="http://man7.org/linux/man-pages/man2/posix_fallocate.2.html">posix_fallocate(2)</a>.
337    */
posix_fallocate(FileDescriptor fd, long offset, long length)338   public static void posix_fallocate(FileDescriptor fd, long offset, long length) throws ErrnoException { Libcore.os.posix_fallocate(fd, offset, length); }
339 
340   /**
341    * See <a href="http://man7.org/linux/man-pages/man2/prctl.2.html">prctl(2)</a>.
342    */
prctl(int option, long arg2, long arg3, long arg4, long arg5)343   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); };
344 
345   /**
346    * See <a href="http://man7.org/linux/man-pages/man2/pread.2.html">pread(2)</a>.
347    */
pread(FileDescriptor fd, ByteBuffer buffer, long offset)348   public static int pread(FileDescriptor fd, ByteBuffer buffer, long offset) throws ErrnoException, InterruptedIOException { return Libcore.os.pread(fd, buffer, offset); }
349 
350   /**
351    * See <a href="http://man7.org/linux/man-pages/man2/pread.2.html">pread(2)</a>.
352    */
pread(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset)353   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); }
354 
355   /**
356    * See <a href="http://man7.org/linux/man-pages/man2/pwrite.2.html">pwrite(2)</a>.
357    */
pwrite(FileDescriptor fd, ByteBuffer buffer, long offset)358   public static int pwrite(FileDescriptor fd, ByteBuffer buffer, long offset) throws ErrnoException, InterruptedIOException { return Libcore.os.pwrite(fd, buffer, offset); }
359 
360   /**
361    * See <a href="http://man7.org/linux/man-pages/man2/pwrite.2.html">pwrite(2)</a>.
362    */
pwrite(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, long offset)363   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); }
364 
365   /**
366    * See <a href="http://man7.org/linux/man-pages/man2/read.2.html">read(2)</a>.
367    */
read(FileDescriptor fd, ByteBuffer buffer)368   public static int read(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException, InterruptedIOException { return Libcore.os.read(fd, buffer); }
369 
370   /**
371    * See <a href="http://man7.org/linux/man-pages/man2/read.2.html">read(2)</a>.
372    */
read(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount)373   public static int read(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException, InterruptedIOException { return Libcore.os.read(fd, bytes, byteOffset, byteCount); }
374 
375   /**
376    * See <a href="http://man7.org/linux/man-pages/man2/readlink.2.html">readlink(2)</a>.
377    */
readlink(String path)378   public static String readlink(String path) throws ErrnoException { return Libcore.os.readlink(path); }
379 
380   /**
381    * See <a href="http://man7.org/linux/man-pages/man2/readv.2.html">readv(2)</a>.
382    */
readv(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts)383   public static int readv(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException, InterruptedIOException { return Libcore.os.readv(fd, buffers, offsets, byteCounts); }
384 
385   /**
386    * See <a href="http://man7.org/linux/man-pages/man2/recvfrom.2.html">recvfrom(2)</a>.
387    */
recvfrom(FileDescriptor fd, ByteBuffer buffer, int flags, InetSocketAddress srcAddress)388   public static int recvfrom(FileDescriptor fd, ByteBuffer buffer, int flags, InetSocketAddress srcAddress) throws ErrnoException, SocketException { return Libcore.os.recvfrom(fd, buffer, flags, srcAddress); }
389 
390   /**
391    * See <a href="http://man7.org/linux/man-pages/man2/recvfrom.2.html">recvfrom(2)</a>.
392    */
recvfrom(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, InetSocketAddress srcAddress)393   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); }
394 
395   /**
396    * See <a href="http://man7.org/linux/man-pages/man3/remove.3.html">remove(3)</a>.
397    */
remove(String path)398   public static void remove(String path) throws ErrnoException { Libcore.os.remove(path); }
399 
removexattr(String path, String name)400   /** @hide */ public static void removexattr(String path, String name) throws ErrnoException { Libcore.os.removexattr(path, name); }
401 
402   /**
403    * See <a href="http://man7.org/linux/man-pages/man2/rename.2.html">rename(2)</a>.
404    */
rename(String oldPath, String newPath)405   public static void rename(String oldPath, String newPath) throws ErrnoException { Libcore.os.rename(oldPath, newPath); }
406 
407   /**
408    * See <a href="http://man7.org/linux/man-pages/man2/sendfile.2.html">sendfile(2)</a>.
409    */
sendfile(FileDescriptor outFd, FileDescriptor inFd, MutableLong inOffset, long byteCount)410   public static long sendfile(FileDescriptor outFd, FileDescriptor inFd, MutableLong inOffset, long byteCount) throws ErrnoException { return Libcore.os.sendfile(outFd, inFd, inOffset, byteCount); }
411 
412   /**
413    * See <a href="http://man7.org/linux/man-pages/man2/sendto.2.html">sendto(2)</a>.
414    */
sendto(FileDescriptor fd, ByteBuffer buffer, int flags, InetAddress inetAddress, int port)415   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); }
416 
417   /**
418    * See <a href="http://man7.org/linux/man-pages/man2/sendto.2.html">sendto(2)</a>.
419    */
sendto(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, InetAddress inetAddress, int port)420   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); }
421 
422   /**
423    * See <a href="http://man7.org/linux/man-pages/man2/sendto.2.html">sendto(2)</a>.
424    */
sendto(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, SocketAddress address)425   /** @hide */ public static int sendto(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount, int flags, SocketAddress address) throws ErrnoException, SocketException { return Libcore.os.sendto(fd, bytes, byteOffset, byteCount, flags, address); }
426 
427   /**
428    * See <a href="http://man7.org/linux/man-pages/man2/setegid.2.html">setegid(2)</a>.
429    */
setegid(int egid)430   public static void setegid(int egid) throws ErrnoException { Libcore.os.setegid(egid); }
431 
432   /**
433    * See <a href="http://man7.org/linux/man-pages/man3/setenv.3.html">setenv(3)</a>.
434    */
setenv(String name, String value, boolean overwrite)435   public static void setenv(String name, String value, boolean overwrite) throws ErrnoException { Libcore.os.setenv(name, value, overwrite); }
436 
437   /**
438    * See <a href="http://man7.org/linux/man-pages/man2/seteuid.2.html">seteuid(2)</a>.
439    */
seteuid(int euid)440   public static void seteuid(int euid) throws ErrnoException { Libcore.os.seteuid(euid); }
441 
442   /**
443    * See <a href="http://man7.org/linux/man-pages/man2/setgid.2.html">setgid(2)</a>.
444    */
setgid(int gid)445   public static void setgid(int gid) throws ErrnoException { Libcore.os.setgid(gid); }
446 
447   /**
448    * See <a href="http://man7.org/linux/man-pages/man2/setpgid.2.html">setpgid(2)</a>.
449    */
setpgid(int pid, int pgid)450   /** @hide */ public static void setpgid(int pid, int pgid) throws ErrnoException { Libcore.os.setpgid(pid, pgid); }
451 
452   /**
453    * See <a href="http://man7.org/linux/man-pages/man2/setregid.2.html">setregid(2)</a>.
454    */
setregid(int rgid, int egid)455   /** @hide */ public static void setregid(int rgid, int egid) throws ErrnoException { Libcore.os.setregid(rgid, egid); }
456 
457   /**
458    * See <a href="http://man7.org/linux/man-pages/man2/setreuid.2.html">setreuid(2)</a>.
459    */
setreuid(int ruid, int euid)460   /** @hide */ public static void setreuid(int ruid, int euid) throws ErrnoException { Libcore.os.setreuid(ruid, euid); }
461 
462   /**
463    * See <a href="http://man7.org/linux/man-pages/man2/setsid.2.html">setsid(2)</a>.
464    */
setsid()465   public static int setsid() throws ErrnoException { return Libcore.os.setsid(); }
466 
setsockoptByte(FileDescriptor fd, int level, int option, int value)467   /** @hide */ public static void setsockoptByte(FileDescriptor fd, int level, int option, int value) throws ErrnoException { Libcore.os.setsockoptByte(fd, level, option, value); }
setsockoptIfreq(FileDescriptor fd, int level, int option, String value)468   /** @hide */ public static void setsockoptIfreq(FileDescriptor fd, int level, int option, String value) throws ErrnoException { Libcore.os.setsockoptIfreq(fd, level, option, value); }
setsockoptInt(FileDescriptor fd, int level, int option, int value)469   /** @hide */ public static void setsockoptInt(FileDescriptor fd, int level, int option, int value) throws ErrnoException { Libcore.os.setsockoptInt(fd, level, option, value); }
setsockoptIpMreqn(FileDescriptor fd, int level, int option, int value)470   /** @hide */ public static void setsockoptIpMreqn(FileDescriptor fd, int level, int option, int value) throws ErrnoException { Libcore.os.setsockoptIpMreqn(fd, level, option, value); }
setsockoptGroupReq(FileDescriptor fd, int level, int option, StructGroupReq value)471   /** @hide */ public static void setsockoptGroupReq(FileDescriptor fd, int level, int option, StructGroupReq value) throws ErrnoException { Libcore.os.setsockoptGroupReq(fd, level, option, value); }
setsockoptGroupSourceReq(FileDescriptor fd, int level, int option, StructGroupSourceReq value)472   /** @hide */ public static void setsockoptGroupSourceReq(FileDescriptor fd, int level, int option, StructGroupSourceReq value) throws ErrnoException { Libcore.os.setsockoptGroupSourceReq(fd, level, option, value); }
setsockoptLinger(FileDescriptor fd, int level, int option, StructLinger value)473   /** @hide */ public static void setsockoptLinger(FileDescriptor fd, int level, int option, StructLinger value) throws ErrnoException { Libcore.os.setsockoptLinger(fd, level, option, value); }
setsockoptTimeval(FileDescriptor fd, int level, int option, StructTimeval value)474   /** @hide */ public static void setsockoptTimeval(FileDescriptor fd, int level, int option, StructTimeval value) throws ErrnoException { Libcore.os.setsockoptTimeval(fd, level, option, value); }
475 
476   /**
477    * See <a href="http://man7.org/linux/man-pages/man2/setuid.2.html">setuid(2)</a>.
478    */
setuid(int uid)479   public static void setuid(int uid) throws ErrnoException { Libcore.os.setuid(uid); }
480 
setxattr(String path, String name, byte[] value, int flags)481   /** @hide */ public static void setxattr(String path, String name, byte[] value, int flags) throws ErrnoException { Libcore.os.setxattr(path, name, value, flags); };
482 
483   /**
484    * See <a href="http://man7.org/linux/man-pages/man2/shutdown.2.html">shutdown(2)</a>.
485    */
shutdown(FileDescriptor fd, int how)486   public static void shutdown(FileDescriptor fd, int how) throws ErrnoException { Libcore.os.shutdown(fd, how); }
487 
488   /**
489    * See <a href="http://man7.org/linux/man-pages/man2/socket.2.html">socket(2)</a>.
490    */
socket(int domain, int type, int protocol)491   public static FileDescriptor socket(int domain, int type, int protocol) throws ErrnoException { return Libcore.os.socket(domain, type, protocol); }
492 
493   /**
494    * See <a href="http://man7.org/linux/man-pages/man2/socketpair.2.html">socketpair(2)</a>.
495    */
socketpair(int domain, int type, int protocol, FileDescriptor fd1, FileDescriptor fd2)496   public static void socketpair(int domain, int type, int protocol, FileDescriptor fd1, FileDescriptor fd2) throws ErrnoException { Libcore.os.socketpair(domain, type, protocol, fd1, fd2); }
497 
498   /**
499    * See <a href="http://man7.org/linux/man-pages/man2/stat.2.html">stat(2)</a>.
500    */
stat(String path)501   public static StructStat stat(String path) throws ErrnoException { return Libcore.os.stat(path); }
502 
503   /**
504    * See <a href="http://man7.org/linux/man-pages/man2/statvfs.2.html">statvfs(2)</a>.
505    */
statvfs(String path)506   public static StructStatVfs statvfs(String path) throws ErrnoException { return Libcore.os.statvfs(path); }
507 
508   /**
509    * See <a href="http://man7.org/linux/man-pages/man3/strerror.3.html">strerror(2)</a>.
510    */
strerror(int errno)511   public static String strerror(int errno) { return Libcore.os.strerror(errno); }
512 
513   /**
514    * See <a href="http://man7.org/linux/man-pages/man3/strsignal.3.html">strsignal(3)</a>.
515    */
strsignal(int signal)516   public static String strsignal(int signal) { return Libcore.os.strsignal(signal); }
517 
518   /**
519    * See <a href="http://man7.org/linux/man-pages/man2/symlink.2.html">symlink(2)</a>.
520    */
symlink(String oldPath, String newPath)521   public static void symlink(String oldPath, String newPath) throws ErrnoException { Libcore.os.symlink(oldPath, newPath); }
522 
523   /**
524    * See <a href="http://man7.org/linux/man-pages/man3/sysconf.3.html">sysconf(3)</a>.
525    */
sysconf(int name)526   public static long sysconf(int name) { return Libcore.os.sysconf(name); }
527 
528   /**
529    * See <a href="http://man7.org/linux/man-pages/man3/tcdrain.3.html">tcdrain(3)</a>.
530    */
tcdrain(FileDescriptor fd)531   public static void tcdrain(FileDescriptor fd) throws ErrnoException { Libcore.os.tcdrain(fd); }
532 
533   /**
534    * See <a href="http://man7.org/linux/man-pages/man3/tcsendbreak.3.html">tcsendbreak(3)</a>.
535    */
tcsendbreak(FileDescriptor fd, int duration)536   public static void tcsendbreak(FileDescriptor fd, int duration) throws ErrnoException { Libcore.os.tcsendbreak(fd, duration); }
537 
538   /**
539    * See <a href="http://man7.org/linux/man-pages/man2/umask.2.html">umask(2)</a>.
540    */
umask(int mask)541   public static int umask(int mask) { return Libcore.os.umask(mask); }
542 
543   /**
544    * See <a href="http://man7.org/linux/man-pages/man2/uname.2.html">uname(2)</a>.
545    */
uname()546   public static StructUtsname uname() { return Libcore.os.uname(); }
547 
548   /**
549    * @hide See <a href="http://man7.org/linux/man-pages/man2/unlink.2.html">unlink(2)</a>.
550    */
unlink(String pathname)551   public static void unlink(String pathname) throws ErrnoException { Libcore.os.unlink(pathname); }
552 
553   /**
554    * See <a href="http://man7.org/linux/man-pages/man3/unsetenv.3.html">unsetenv(3)</a>.
555    */
unsetenv(String name)556   public static void unsetenv(String name) throws ErrnoException { Libcore.os.unsetenv(name); }
557 
558   /**
559    * See <a href="http://man7.org/linux/man-pages/man2/waitpid.2.html">waitpid(2)</a>.
560    */
waitpid(int pid, MutableInt status, int options)561   public static int waitpid(int pid, MutableInt status, int options) throws ErrnoException { return Libcore.os.waitpid(pid, status, options); }
562 
563   /**
564    * See <a href="http://man7.org/linux/man-pages/man2/write.2.html">write(2)</a>.
565    */
write(FileDescriptor fd, ByteBuffer buffer)566   public static int write(FileDescriptor fd, ByteBuffer buffer) throws ErrnoException, InterruptedIOException { return Libcore.os.write(fd, buffer); }
567 
568   /**
569    * See <a href="http://man7.org/linux/man-pages/man2/write.2.html">write(2)</a>.
570    */
write(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount)571   public static int write(FileDescriptor fd, byte[] bytes, int byteOffset, int byteCount) throws ErrnoException, InterruptedIOException { return Libcore.os.write(fd, bytes, byteOffset, byteCount); }
572 
573   /**
574    * See <a href="http://man7.org/linux/man-pages/man2/writev.2.html">writev(2)</a>.
575    */
writev(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts)576   public static int writev(FileDescriptor fd, Object[] buffers, int[] offsets, int[] byteCounts) throws ErrnoException, InterruptedIOException { return Libcore.os.writev(fd, buffers, offsets, byteCounts); }
577 }
578