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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-03-10 08:25:32 +0100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-03-11 10:58:09 +0100 |
commit | d50acdbb6c8213114ce887a56daea02697c9e1a1 (patch) | |
tree | e48fb252786992308fa2dd6337c8a02db35bd10b /cpukit/rtems/src/clockgetuptimenanoseconds.c | |
parent | sapi: Use one SMP lock for all chains (diff) | |
download | rtems-d50acdbb6c8213114ce887a56daea02697c9e1a1.tar.bz2 |
score: Add local context to SMP lock API
Add a local context structure to the SMP lock API for acquire and
release pairs. This context can be used to store the ISR level and
profiling information. It may be later used to enable more
sophisticated lock algorithms, e.g. MCS locks.
There is only one lock that cannot be used with a local context. This
is the per-CPU lock since here we would have to transfer the local
context through a context switch which is very complicated.
Diffstat (limited to 'cpukit/rtems/src/clockgetuptimenanoseconds.c')
-rw-r--r-- | cpukit/rtems/src/clockgetuptimenanoseconds.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/cpukit/rtems/src/clockgetuptimenanoseconds.c b/cpukit/rtems/src/clockgetuptimenanoseconds.c index c07a4305db..47775656a8 100644 --- a/cpukit/rtems/src/clockgetuptimenanoseconds.c +++ b/cpukit/rtems/src/clockgetuptimenanoseconds.c @@ -24,12 +24,12 @@ uint64_t rtems_clock_get_uptime_nanoseconds( void ) { Timestamp_Control snapshot_as_timestamp; uint32_t nanoseconds; - ISR_Level level; + ISR_lock_Context lock_context; - _TOD_Acquire( &_TOD, level ); + _TOD_Acquire( &_TOD, &lock_context ); snapshot_as_timestamp = _TOD.uptime; nanoseconds = ( *_TOD.nanoseconds_since_last_tick )(); - _TOD_Release( &_TOD, level ); + _TOD_Release( &_TOD, &lock_context ); return _Timestamp_Get_As_nanoseconds( &snapshot_as_timestamp, nanoseconds ); } |