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2022-02-28score/src/[n-s]*.c: Change license to BSD-2Joel Sherrill1-3/+22
Updates #3053.
2021-11-15score: Introduce CPU budget operationsSebastian Huber1-3/+38
This patch set replaces the CPU budget algorithm enumeration with a set of CPU budget operations which implement a particular CPU budget algorithm. This helps to hide the CPU budget algorithm implementation details from the general thread handling. The CPU budget callouts are turned into CPU budget operations. This slightly reduces the size of the thread control block. All schedulers used the default scheduler tick implementation. The tick scheduler operation is removed and the CPU budget operations are directly used in _Watchdog_Tick() if the executing thread uses a CPU budget algorithm. This is performance improvement for all threads which do not use a CPU budget algorithm (default behaviour).
2020-12-02score: Canonicalize Doxygen @file commentsSebastian Huber1-2/+3
Use common phrases for the file brief descriptions. Update #3706.
2020-04-28doxygen: Switch @brief and @ingroupSebastian Huber1-1/+2
This order change fixes the Latex documentation build via Doxygen.
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 Huber1-9/+13
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.
2015-05-19score: Rework _Thread_Change_priority()Sebastian Huber1-4/+2
Move the writes to Thread_Control::current_priority and Thread_Control::real_priority into _Thread_Change_priority() under the protection of the thread lock. Add a filter function to _Thread_Change_priority() to enable specialized variants. Avoid race conditions during a thread priority restore with the new Thread_Control::priority_restore_hint for an important average case optimizations used by priority inheritance mutexes. Update #2273.
2014-07-08score: Rename *_Node_get() to *_Thread_get_node()Sebastian Huber1-1/+1
This emphasizes that the scheduler node of a thread is returned and this is not a function working with scheduler nodes like the other *_Node_*() functions.
2014-05-14score: Introduce scheduler nodesSebastian Huber1-6/+6
Rename scheduler per-thread information into scheduler nodes using Scheduler_Node as the base type. Use inheritance for specialized schedulers. Move the scheduler specific states from the thread control block into the scheduler node structure. Validate the SMP scheduler node state transitions in case RTEMS_DEBUG is defined.
2014-04-15score: Static scheduler configurationSebastian Huber1-10/+0
Do not allocate the scheduler control structures from the workspace. This is a preparation step for configuration of clustered/partitioned schedulers on SMP.
2014-03-21Change all references of rtems.com to rtems.org.Chris Johns1-1/+1
2013-07-26score: Create thread implementation headerSebastian Huber1-1/+1
Move implementation specific parts of thread.h and thread.inl into new header file threadimpl.h. The thread.h contains now only the application visible API. Remove superfluous header file includes from various files.
2013-07-26score: Create schedulerpriority impl headerSebastian Huber1-4/+2
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.
2012-11-28Score misc: Clean up Doxygen #4 (GCI 2012)Alexandre Devienne1-0/+7
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/gci2012/7985215
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.
2011-10-042011-10-04 Sebastian Huber <sebastian.huber@embedded-brains.de>Jennifer Averett1-0/+2
PR 1922 * score/include/rtems/score/schedulercbs.h, score/src/schedulercbs.c: EDF and CBS scheduler: extern declarations fix.
2011-09-152011-09-15 Petr Benes <benesp16@fel.cvut.cz>Joel Sherrill1-0/+59
PR 1906/cpukit * sapi/Makefile.am, sapi/preinstall.am, sapi/include/confdefs.h, score/Makefile.am, score/preinstall.am: Add the CBS (Constant Bandwidth Server) scheduler. This is a complex scheduling policy built atop of the EDF scheduler. Unlike other schedulers, this one provides a user API and handles not only deadlines of tasks but also claimed budget per period. The main aim of the scheduler is isolation of tasks so that each task is guaranteed to meet all deadlines regardless of how other tasks behave. * sapi/include/rtems/cbs.h, sapi/inline/rtems/cbs.inl, score/include/rtems/score/schedulercbs.h, score/src/schedulercbs.c, score/src/schedulercbsattachthread.c, score/src/schedulercbscleanup.c, score/src/schedulercbscreateserver.c, score/src/schedulercbsdestroyserver.c, score/src/schedulercbsdetachthread.c, score/src/schedulercbsgetapprovedbudget.c, score/src/schedulercbsgetexecutiontime.c, score/src/schedulercbsgetparameters.c, score/src/schedulercbsgetremainingbudget.c, score/src/schedulercbsgetserverid.c, score/src/schedulercbsreleasejob.c, score/src/schedulercbssetparameters.c, score/src/schedulercbsunblock.c: New files.
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