mirror of
https://gitlab.rtems.org/rtems/rtos/rtems.git
synced 2026-09-02 10:06:44 +08:00
Sebastian Huber
9bfad8cd51
The thread priority is manifest in two independent areas. One area is the user visible thread priority along with a potential thread queue. The other is the scheduler. Currently, a thread priority update via _Thread_Change_priority() first updates the user visble thread priority and the thread queue, then the scheduler is notified if necessary. The priority is passed to the scheduler via a local variable. A generation counter ensures that the scheduler discards out-of-date priorities. This use of a local variable ties the update in these two areas close together. For later enhancements and the OMIP locking protocol implementation we need more flexibility. Add a thread priority information block to Scheduler_Node and synchronize priority value updates via a sequence lock on SMP configurations. Update #2556.
This is the directory under which the RTEMS
test programs provided with the release are located. The
following is a description of the contents of each file and
subdirectory directly in this directory:
NOTE: Other than the 'samples' directory these tests are intended
only to exercise RTEMS features and are *not* good examples
of programming for RTEMS.
samples
This directory contains a set of simple sample applications
which can be used either to test a board support package
or as the starting point for a custom application.
mptests
This directory contains the RTEMS Multiprocessor Test Suite.
The tests in this directory provide near complete (98%+) test
coverage of the multiprocessor specific code in RTEMS.
psxtests
This directory contains the RTEMS POSIX API Test Suite.
The tests in this directory test the POSIX API support in RTEMS.
sptests
This directory contains the RTEMS Single Processor Test Suite.
The tests in this directory provide near complete (98%+) test
coverage of the non-multiprocessor code in RTEMS.
tmtests
This directory contains the RTEMS Timing Test Suite.
The tests in this directory are used to measure the execution
time of RTEMS directive and some critical internal functions.
The results of these test are reported in the Fact Sheets
and Supplental Manuals.