本文整理了Java中android.system.Os.poll()方法的一些代码示例，展示了Os.poll()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Os.poll()方法的具体详情如下：
包路径：android.system.Os
类名称：Os
方法名：poll

Os.poll介绍

暂无

代码示例

代码示例来源：origin: julian-klode/dns66

/**
 * Wrapper around {@link Os#poll(StructPollfd[], int)} that automatically restarts on EINTR
 * While post-Lollipop devices handle that themselves, we need to do this for Lollipop.
 *
 * @param fds     Descriptors and events to wait on
 * @param timeout Timeout. Should be -1 for infinite, as we do not lower the timeout when
 *                retrying due to an interrupt
 * @return The number of fds that have events
 * @throws ErrnoException See {@link Os#poll(StructPollfd[], int)}
 */
public static int poll(StructPollfd[] fds, int timeout) throws ErrnoException, InterruptedException {
  while (true) {
    if (Thread.interrupted())
      throw new InterruptedException();
    try {
      return Os.poll(fds, timeout);
    } catch (ErrnoException e) {
      if (e.errno == OsConstants.EINTR)
        continue;
      throw e;
    }
  }
}

代码示例来源：origin: iTXTech/Daedalus

polls[0] = deviceFd;
polls[1] = blockFd;
Os.poll(polls, 100);
if (blockFd.revents != 0) {
  Log.i(TAG, "Told to stop VPN");

代码示例来源：origin: iTXTech/Daedalus

Os.poll(polls, -1);
if (blockFd.revents != 0) {
  Log.i(TAG, "Told to stop VPN");

代码示例来源：origin: iTXTech/Daedalus

Os.poll(polls, -1);
if (blockFd.revents != 0) {
  Log.i(TAG, "Told to stop VPN");

代码示例来源：origin: julian-klode/dns66

@Test
@PrepareForTest({Log.class, Os.class})
public void testPoll_success() throws Exception {
  mockStatic(Log.class);
  mockStatic(Os.class);
  when(Os.poll(any(StructPollfd[].class), anyInt())).then(new CountingAnswer(42));
  assertEquals(42, FileHelper.poll(null, 0));
  assertEquals(1, testResult);
}

代码示例来源：origin: julian-klode/dns66

@Test
@PrepareForTest({Log.class, Os.class})
public void testPoll_retryInterrupt() throws Exception {
  mockStatic(Log.class);
  mockStatic(Os.class);
  when(Os.poll(any(StructPollfd[].class), anyInt())).then(new Answer<Integer>() {
    @Override
    public Integer answer(InvocationOnMock invocation) throws Throwable {
      // First try fails with EINTR, seconds returns success.
      if (testResult++ == 0) {
        // Android actually sets all OsConstants to 0 when running the
        // unit tests, so this works, but another constant would have
        // exactly the same result.
        throw new ErrnoException("poll", OsConstants.EINTR);
      }
      return 0;
    }
  });
  // poll() will be interrupted first time, so called a second time.
  assertEquals(0, FileHelper.poll(null, 0));
  assertEquals(2, testResult);
}

代码示例来源：origin: julian-klode/dns66

@Test
@PrepareForTest({Log.class, Os.class})
public void testPoll_fault() throws Exception {
  mockStatic(Log.class);
  mockStatic(Os.class);
  // Eww, Android is playing dirty and setting all errno values to 0.
  // Hack around it so we can test that aborting the loop works.
  final ErrnoException e = new ErrnoException("foo", 42);
  e.getClass().getDeclaredField("errno").setInt(e, 42);
  when(Os.poll(any(StructPollfd[].class), anyInt())).then(new Answer<Integer>() {
    @Override
    public Integer answer(InvocationOnMock invocation) throws Throwable {
      testResult++;
      throw e;
    }
  });
  try {
    FileHelper.poll(null, 0);
    fail("Did not throw");
  } catch (ErrnoException e1) {
    assertEquals(42, e1.errno);
    assertSame(e, e1);
  }
  assertEquals(1, testResult);
}