diff options
Diffstat (limited to 'cpukit/libmisc/testsupport/testbusy.c')
| -rw-r--r-- | cpukit/libmisc/testsupport/testbusy.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/cpukit/libmisc/testsupport/testbusy.c b/cpukit/libmisc/testsupport/testbusy.c index 2d34a805dc..4cc8aa01fe 100644 --- a/cpukit/libmisc/testsupport/testbusy.c +++ b/cpukit/libmisc/testsupport/testbusy.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2014, 2017 embedded brains GmbH. All rights reserved. + * Copyright (c) 2014, 2018 embedded brains GmbH. All rights reserved. * * embedded brains GmbH * Dornierstr. 4 @@ -19,6 +19,7 @@ #include <rtems/test.h> #include <rtems.h> +#include <rtems/score/threadimpl.h> static uint_fast32_t estimate_busy_loop_maximum( void ) { @@ -105,3 +106,19 @@ uint_fast32_t rtems_test_get_one_tick_busy_count( void ) return m; } + +void rtems_test_busy_cpu_usage( time_t seconds, long nanoseconds ) +{ + Thread_Control *executing; + Timestamp_Control busy; + Timestamp_Control start; + Timestamp_Control now; + + executing = _Thread_Get_executing(); + _Thread_Get_CPU_time_used( executing, &start ); + _Timestamp_Set( &busy, seconds, nanoseconds ); + + do { + _Thread_Get_CPU_time_used( executing, &now ); + } while ( now - start < busy ); +} |