C++ (Cpp) rtems_clock_tick_before Exemples

Exemple #1

Fichier : imx-i2c.c Projet : RTEMS/rtems

static int imx_i2c_wait_for_not_busy(volatile imx_i2c *regs)
{
  rtems_interval timeout;
  bool before;

  if ((regs->i2sr & IMX_I2C_I2SR_IBB) == 0) {
    return 0;
  }

  timeout = rtems_clock_tick_later(10);

  do {
    before = rtems_clock_tick_before(timeout);

    if ((regs->i2sr & IMX_I2C_I2SR_IBB) == 0) {
      return 0;
    }
  } while (before);

  return ETIMEDOUT;
}

Exemple #2

Fichier : init.c Projet : krohini1593/rtems

static void test_clock_tick_functions( void )
{
  rtems_interrupt_level level;
  Watchdog_Interval saved_ticks;

  _Thread_Disable_dispatch();
  rtems_interrupt_disable( level );

  saved_ticks = _Watchdog_Ticks_since_boot;

  _Watchdog_Ticks_since_boot = 0xdeadbeef;
  rtems_test_assert( rtems_clock_get_ticks_since_boot() == 0xdeadbeef );

  rtems_test_assert( rtems_clock_tick_later( 0 ) == 0xdeadbeef );
  rtems_test_assert( rtems_clock_tick_later( 0x8160311e ) == 0x600df00d );

  _Watchdog_Ticks_since_boot = 0;
  rtems_test_assert( rtems_clock_tick_later_usec( 0 ) == 1 );
  rtems_test_assert( rtems_clock_tick_later_usec( 1 ) == 2 );
  rtems_test_assert( rtems_clock_tick_later_usec( US_PER_TICK ) == 2 );
  rtems_test_assert( rtems_clock_tick_later_usec( US_PER_TICK + 1 ) == 3 );

  _Watchdog_Ticks_since_boot = 0;
  rtems_test_assert( !rtems_clock_tick_before( 0xffffffff ) );
  rtems_test_assert( !rtems_clock_tick_before( 0 ) );
  rtems_test_assert( rtems_clock_tick_before( 1 ) );

  _Watchdog_Ticks_since_boot = 1;
  rtems_test_assert( !rtems_clock_tick_before( 0 ) );
  rtems_test_assert( !rtems_clock_tick_before( 1 ) );
  rtems_test_assert( rtems_clock_tick_before( 2 ) );

  _Watchdog_Ticks_since_boot = 0x7fffffff;
  rtems_test_assert( !rtems_clock_tick_before( 0x7ffffffe ) );
  rtems_test_assert( !rtems_clock_tick_before( 0x7fffffff ) );
  rtems_test_assert( rtems_clock_tick_before( 0x80000000 ) );

  _Watchdog_Ticks_since_boot = 0x80000000;
  rtems_test_assert( !rtems_clock_tick_before( 0x7fffffff ) );
  rtems_test_assert( !rtems_clock_tick_before( 0x80000000 ) );
  rtems_test_assert( rtems_clock_tick_before( 0x80000001 ) );

  _Watchdog_Ticks_since_boot = 0xffffffff;
  rtems_test_assert( !rtems_clock_tick_before( 0xfffffffe ) );
  rtems_test_assert( !rtems_clock_tick_before( 0xffffffff ) );
  rtems_test_assert( rtems_clock_tick_before( 0 ) );

  _Watchdog_Ticks_since_boot = saved_ticks;

  rtems_interrupt_enable( level );
  _Thread_Enable_dispatch();
}