summaryrefslogtreecommitdiffstats
path: root/cpukit/score/src/schedulerdefaultnodeinit.c (unfollow)
Commit message (Collapse)AuthorFilesLines
2022-02-28score/src/[n-s]*.c: Change license to BSD-2Joel Sherrill1-3/+22
Updates #3053.
2020-12-02score: Canonicalize Doxygen @file commentsSebastian Huber1-2/+3
Use common phrases for the file brief descriptions. Update #3706.
2020-04-16Canonicalize config.h includeSebastian Huber1-1/+1
Use the following variant which was already used by most source files: #ifdef HAVE_CONFIG_H #include "config.h" #endif
2019-04-04doxygen: Rename Score* groups in RTEMSScore*Sebastian Huber1-1/+1
Update #3706
2016-09-21score: Rework thread priority managementSebastian Huber1-3/+1
Add priority nodes which contribute to the overall thread priority. The actual priority of a thread is now an aggregation of priority nodes. The thread priority aggregation for the home scheduler instance of a thread consists of at least one priority node, which is normally the real priority of the thread. The locking protocols (e.g. priority ceiling and priority inheritance), rate-monotonic period objects and the POSIX sporadic server add, change and remove priority nodes. A thread changes its priority now immediately, e.g. priority changes are not deferred until the thread releases its last resource. Replace the _Thread_Change_priority() function with * _Thread_Priority_perform_actions(), * _Thread_Priority_add(), * _Thread_Priority_remove(), * _Thread_Priority_change(), and * _Thread_Priority_update(). Update #2412. Update #2556.
2016-07-01score: Change scheduler node init and destroySebastian Huber1-2/+1
Provide the scheduler node to initialize or destroy to the corresponding operations. This makes it possible to have more than one scheduler node per thread.
2016-06-22score: Add thread priority to scheduler nodesSebastian Huber1-2/+3
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 A generation counter ensures that the scheduler discards out-of-date priorities.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.
2014-07-09score: Implement scheduler helping protocolSebastian Huber1-2/+5
The following scheduler operations return a thread in need for help - unblock, - change priority, and - yield. A thread in need for help is a thread that encounters a scheduler state change from scheduled to ready or a thread that cannot be scheduled in an unblock operation. Such a thread can ask threads which depend on resources owned by this thread for help. Add a new ask for help scheduler operation. This operation is used by _Scheduler_Ask_for_help() to help threads in need for help returned by the operations mentioned above. This operation is also used by _Scheduler_Thread_change_resource_root() in case the root of a resource sub-tree changes. A use case is the ownership change of a resource. In case it is not possible to schedule a thread in need for help, then the corresponding scheduler node will be placed into the set of ready scheduler nodes of the scheduler instance. Once a state change from ready to scheduled happens for this scheduler node it may be used to schedule the thread in need for help.
2014-06-04score: Replace _Scheduler_Allocate/Free()Sebastian Huber1-15/+4
Replace _Scheduler_Allocate() with _Scheduler_Node_initialize(). Remove the return status and thus the node initialization must be always successful. Rename _Scheduler_Free() to _Scheduler_Node_destroy().
2014-04-15score: Simplify thread control initializationSebastian Huber1-2/+2
The thread control block contains fields that point to application configuration dependent memory areas, like the scheduler information, the API control blocks, the user extension context table, the RTEMS notepads and the Newlib re-entrancy support. Account for these areas in the configuration and avoid extra workspace allocations for these areas. This helps also to avoid heap fragementation and reduces the per thread memory due to a reduced heap allocation overhead.
2014-04-15score: Static scheduler configurationSebastian Huber1-4/+4
Do not allocate the scheduler control structures from the workspace. This is a preparation step for configuration of clustered/partitioned schedulers on SMP.
2014-04-04score: Add scheduler control to scheduler opsSebastian Huber1-4/+8
Scheduler operations must be free of a global scheduler context to enable partitioned/clustered scheduling.
2014-03-21Change all references of rtems.com to rtems.org.Chris Johns1-1/+1
2013-08-08score: Rename _Scheduler_simple_Allocate(), etc.Sebastian Huber1-5/+14
Rename _Scheduler_simple_Allocate() in _Scheduler_default_Allocate(). Rename _Scheduler_simple_Free() in _Scheduler_default_Free().
2013-07-26score: Create schedulerpriority impl headerSebastian Huber1-4/+1
Move implementation specific parts of schedulerpriority.h and schedulerpriority.inl into new header file schedulerpriorityimpl.h. The schedulerpriority.h contains now only the application visible API. Add missing includes. Remove superfluous includes. Move declaration of _Priority_Bit_map to prioritybitmap.inl since this variable is used only here. Remove second declaration of _Priority_Major_bit_map.
2012-11-29score misc: Score misc: Clean up Doxygen #6 (GCI 2012)Christopher Kerl1-1/+8
This patch is a task from GCI 2012 which improves the Doxygen comments in the RTEMS source. http://www.google-melange.com/gci/task/view/google/gci2012/7976215
2012-05-11Remove All CVS Id Strings Possible Using a ScriptJoel Sherrill1-2/+0
Script does what is expected and tries to do it as smartly as possible. + remove occurrences of two blank comment lines next to each other after Id string line removed. + remove entire comment blocks which only exited to contain CVS Ids + If the processing left a blank line at the top of a file, it was removed.
2011-05-24Remove white-spaces.Ralf Corsepius1-1/+1
2011-02-282011-02-27 Jennifer Averett <jennifer.averett@OARcorp.com>Joel Sherrill1-2/+3
* score/include/rtems/score/schedulerpriority.h, score/src/schedulerpriority.c, score/src/schedulerpriorityextract.c, score/src/schedulerpriorityupdate.c: Formatting.
2011-02-182011-02-18 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill1-6/+7
* sapi/include/confdefs.h, score/Makefile.am, score/include/rtems/score/scheduler.h, score/include/rtems/score/schedulerpriority.h, score/include/rtems/score/thread.h, score/inline/rtems/score/scheduler.inl, score/inline/rtems/score/schedulerpriority.inl, score/src/scheduler.c, score/src/schedulerpriority.c, score/src/schedulerpriorityblock.c, score/src/schedulerpriorityschedule.c, score/src/schedulerpriorityunblock.c, score/src/schedulerpriorityyield.c, score/src/threadchangepriority.c, score/src/threadclose.c, score/src/threadinitialize.c, score/src/threadsetpriority.c, score/src/threadsettransient.c: Significant clean up on Scheduler Plugin Interface. Names were shortened. Missing operations added. Many scheduler files had unneeded includes removed. Made pointer to scheduler information in Thread_Control and Scheduler_Control a void * pointer because the thread and scheduler wrapper should be unaware of scheduler types AND this is broken for user provided schedulers. * score/src/schedulerpriorityallocate.c, score/src/schedulerpriorityenqueue.c, score/src/schedulerpriorityenqueuefirst.c, score/src/schedulerpriorityextract.c, score/src/schedulerpriorityfree.c, score/src/schedulerpriorityupdate.c: New files. * score/src/schedulerprioritythreadschedulerallocate.c, score/src/schedulerprioritythreadschedulerfree.c, score/src/schedulerprioritythreadschedulerupdate.c: Removed.
2008-12-162008-12-16 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill1-14/+7
* libblock/src/bdbuf.c, libmisc/capture/capture-cli.c, libmisc/capture/capture.c, libmisc/mw-fb/mw_uid.c, rtems/include/rtems/rtems/support.h, score/Makefile.am, score/include/rtems/score/tod.h, score/src/coretod.c, score/src/coretodtickle.c: Eliminate all public use of TOD conversion routines. Eliminate _TOD_Microseconds_per_tick and let every place use the field directly from the Configuration Table. This required moving some methods from macros to bodies. * score/src/coretodmsecstoticks.c, score/src/coretodtickspersec.c, score/src/coretodusectoticks.c: New files.
2007-04-172007-04-17 Joel Sherrill <joel@OARcorp.com>Joel Sherrill1-10/+7
* itron/Makefile.am, itron/src/eventflags.c, itron/src/fmempool.c, itron/src/itronintr.c, itron/src/itrontime.c, itron/src/network.c, itron/src/port.c, itron/src/sysmgmt.c, itron/src/task.c, itron/src/vmempool.c, posix/Makefile.am, posix/src/pthread.c, rtems/src/taskinitusers.c, rtems/src/tasks.c, sapi/include/confdefs.h, sapi/src/io.c: Various modification to reduce executable size. Most were refactoring of files. Split ITRON API files. Implemented mechanism to avoid initialization task/thread loop being linked in when that style of task initialization was not being used. * itron/src/acp_por.c, itron/src/act_cyc.c, itron/src/cal_por.c, itron/src/chg_iXX.c, itron/src/clr_flg.c, itron/src/cre_flg.c, itron/src/cre_mpf.c, itron/src/cre_mpl.c, itron/src/cre_por.c, itron/src/def_alm.c, itron/src/def_cyc.c, itron/src/def_exc.c, itron/src/def_int.c, itron/src/def_svc.c, itron/src/del_flg.c, itron/src/del_mpf.c, itron/src/del_mpl.c, itron/src/del_por.c, itron/src/dis_int.c, itron/src/dly_tsk.c, itron/src/ena_int.c, itron/src/fwd_por.c, itron/src/get_blf.c, itron/src/get_blk.c, itron/src/get_tim.c, itron/src/get_ver.c, itron/src/itroninittasks.c, itron/src/loc_cpu.c, itron/src/nget_nod.c, itron/src/nget_ver.c, itron/src/nrea_dat.c, itron/src/nwri_dat.c, itron/src/pacp_por.c, itron/src/pcal_por.c, itron/src/pget_blf.c, itron/src/pget_blk.c, itron/src/pol_flg.c, itron/src/ref_alm.c, itron/src/ref_cfg.c, itron/src/ref_cyc.c, itron/src/ref_flg.c, itron/src/ref_iXX.c, itron/src/ref_mpf.c, itron/src/ref_mpl.c, itron/src/ref_por.c, itron/src/ref_sys.c, itron/src/rel_blf.c, itron/src/rel_blk.c, itron/src/ret_int.c, itron/src/ret_tmr.c, itron/src/ret_wup.c, itron/src/rpl_rdv.c, itron/src/set_flg.c, itron/src/set_tim.c, itron/src/tacp_por.c, itron/src/tcal_por.c, itron/src/tget_blf.c, itron/src/tget_blk.c, itron/src/twai_flg.c, itron/src/unl_cpu.c, itron/src/wai_flg.c, posix/src/pthreadinitthreads.c: New files.
2004-04-012004-04-01 Ralf Corsepius <ralf_corsepius@rtems.org>Ralf Corsepius1-1/+1
* libblock/include/rtems/bdbuf.h: Include <rtems/chain.h> instead of <chain.h>. * libblock/include/rtems/ide_part_table.h: Include <rtems/chain.h> instead of <chain.h>. * libcsupport/src/malloc.c: Include <rtems/chain.h> instead of <chain.h>. * libcsupport/src/mount.c: Include <rtems/chain.h> instead of <chain.h>. * libcsupport/src/unmount.c: Include <rtems/chain.h> instead of <chain.h>. * libfs/src/imfs/imfs.h: Include <rtems/chain.h> instead of <chain.h>. * libfs/src/imfs/imfs_directory.c: Include <rtems/chain.h> instead of <chain.h>. * libfs/src/imfs/imfs_load_tar.c: Include <rtems/chain.h> instead of <chain.h>. * sapi/include/confdefs.h: Include <rtems/clockdrv.h> instead of <clockdrv.h>. * sapi/include/confdefs.h: Include <rtems/console.h> instead of <console.h>. * libfs/src/imfs/imfs_load_tar.c: Include <rtems/imfs.h> instead of <imfs.h>. * libmisc/shell/cmds.c: Include <rtems/imfs.h> instead of <imfs.h>. * libmisc/fsmount/fsmount.c: Include <rtems/imfs.h> instead of <imfs.h>. * sapi/include/confdefs.h: Include <rtems/imfs.h> instead of <imfs.h>. * itron/src/can_wup.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/chg_pri.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/cre_mbf.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/cre_mbx.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/cre_sem.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/cre_tsk.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/del_mbf.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/del_mbx.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/del_sem.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/del_tsk.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/dis_dsp.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/ena_dsp.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/eventflags.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/exd_tsk.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/ext_tsk.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/fmempool.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/frsm_tsk.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/get_tid.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/itronintr.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/itronsem.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/itrontime.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/mbox.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/mboxtranslatereturncode.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/msgbuffer.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/msgbuffertranslatereturncode.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/network.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/port.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/prcv_mbf.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/prcv_mbx.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/preq_sem.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/psnd_mbf.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/rcv_mbf.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/rcv_mbx.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/ref_mbf.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/ref_mbx.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/ref_sem.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/ref_tsk.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/rel_wai.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/rot_rdq.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/rsm_tsk.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/sig_sem.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/slp_tsk.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/snd_mbf.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/snd_mbx.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/sta_tsk.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/sus_tsk.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/sysmgmt.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/task.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/ter_tsk.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/trcv_mbf.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/trcv_mbx.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/tslp_tsk.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/tsnd_mbf.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/twai_sem.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/vmempool.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/wai_sem.c: Include <rtems/itron.h> instead of <itron.h>. * itron/src/wup_tsk.c: Include <rtems/itron.h> instead of <itron.h>. * sapi/include/rtems/config.h: Include <rtems/itron.h> instead of <itron.h>. * sapi/include/confdefs.h: Include <rtems/itron.h> instead of <itron.h>. * sapi/src/itronapi.c: Include <rtems/itron.h> instead of <itron.h>. * sapi/include/confdefs.h: Include <rtems/rtc.h> instead of <rtc.h>. * sapi/include/confdefs.h: Include <rtems/timerdrv.h> instead of <timerdrv.h>.
2003-09-042003-09-04 Joel Sherrill <joel@OARcorp.com>Joel Sherrill1-1/+1
* include/itron.h, include/itronsys/eventflags.h, include/itronsys/fmempool.h, include/itronsys/intr.h, include/itronsys/mbox.h, include/itronsys/msgbuffer.h, include/itronsys/network.h, include/itronsys/port.h, include/itronsys/semaphore.h, include/itronsys/status.h, include/itronsys/sysmgmt.h, include/itronsys/task.h, include/itronsys/time.h, include/itronsys/types.h, include/itronsys/vmempool.h, include/rtems/itron/config.h, include/rtems/itron/eventflags.h, include/rtems/itron/fmempool.h, include/rtems/itron/intr.h, include/rtems/itron/itronapi.h, include/rtems/itron/mbox.h, include/rtems/itron/msgbuffer.h, include/rtems/itron/network.h, include/rtems/itron/object.h, include/rtems/itron/port.h, include/rtems/itron/semaphore.h, include/rtems/itron/sysmgmt.h, include/rtems/itron/task.h, include/rtems/itron/time.h, include/rtems/itron/vmempool.h, inline/rtems/itron/eventflags.inl, inline/rtems/itron/fmempool.inl, inline/rtems/itron/intr.inl, inline/rtems/itron/mbox.inl, inline/rtems/itron/msgbuffer.inl, inline/rtems/itron/network.inl, inline/rtems/itron/port.inl, inline/rtems/itron/semaphore.inl, inline/rtems/itron/sysmgmt.inl, inline/rtems/itron/task.inl, inline/rtems/itron/time.inl, inline/rtems/itron/vmempool.inl, macros/rtems/itron/eventflags.inl, macros/rtems/itron/fmempool.inl, macros/rtems/itron/intr.inl, macros/rtems/itron/mbox.inl, macros/rtems/itron/msgbuffer.inl, macros/rtems/itron/network.inl, macros/rtems/itron/port.inl, macros/rtems/itron/semaphore.inl, macros/rtems/itron/sysmgmt.inl, macros/rtems/itron/task.inl, macros/rtems/itron/time.inl, macros/rtems/itron/vmempool.inl, src/can_wup.c, src/chg_pri.c, src/cre_mbf.c, src/cre_mbx.c, src/cre_sem.c, src/cre_tsk.c, src/del_mbf.c, src/del_mbx.c, src/del_sem.c, src/del_tsk.c, src/dis_dsp.c, src/ena_dsp.c, src/eventflags.c, src/exd_tsk.c, src/ext_tsk.c, src/fmempool.c, src/frsm_tsk.c, src/get_tid.c, src/itronintr.c, src/itronsem.c, src/itrontime.c, src/mbox.c, src/mboxtranslatereturncode.c, src/msgbuffer.c, src/msgbuffertranslatereturncode.c, src/network.c, src/port.c, src/prcv_mbf.c, src/prcv_mbx.c, src/preq_sem.c, src/psnd_mbf.c, src/rcv_mbf.c, src/rcv_mbx.c, src/ref_mbf.c, src/ref_mbx.c, src/ref_sem.c, src/ref_tsk.c, src/rel_wai.c, src/rot_rdq.c, src/rsm_tsk.c, src/sig_sem.c, src/slp_tsk.c, src/snd_mbf.c, src/snd_mbx.c, src/sta_tsk.c, src/sus_tsk.c, src/sysmgmt.c, src/task.c, src/ter_tsk.c, src/trcv_mbf.c, src/trcv_mbx.c, src/tslp_tsk.c, src/tsnd_mbf.c, src/twai_sem.c, src/vmempool.c, src/wai_sem.c, src/wup_tsk.c: URL for license changed.
2001-01-242001-01-24 Ralf Corsepius <corsepiu@faw.uni-ulm.de>Joel Sherrill1-0/+4
* configure.in: Add src/config.h * src/Makefile.am: Add INCLUDES += -I. to pickup config.h * src/.cvsignore: Add config.h and stamp-h * src/*.c: Add config.h support.
1999-11-17+ Updated copyright information.Jennifer Averett1-0/+3
1999-11-10Committed modifications from ITRON Task and Task Dependendent SynchronizationJoel Sherrill1-1/+1
Working Group. Included are tests.
1999-11-09This patch adds the basic framework for the ITRON 3.0 API implementationJoel Sherrill1-0/+28
for RTEMS.