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* score: Simplify <rtems/score/thread.h>Sebastian Huber2015-06-251-0/+1
| | | | | | Avoid Thread_Control typedef in <rtems/score/percpu.h>. This helps to get rid of the <rtems/score/percpu.h> include in <rtems/score/thread.h> which exposes a lot of implementation details.
* rtems: Add rtems_interrupt_local_disable|enable()Sebastian Huber2015-06-222-2/+45
| | | | | | | | Add rtems_interrupt_local_disable|enable() as suggested by Pavel Pisa to emphasize that interrupts are only disabled on the current processor. Do not define the rtems_interrupt_disable|enable|flash() macros and functions on SMP configurations since they don't ensure system wide mutual exclusion.
* Remove use ticks for statistics configure option.Joel Sherrill2015-06-157-188/+77
| | | | | | | | | | This was obsolete and broken based upon recent time keeping changes. Thie build option was previously enabled by adding USE_TICKS_FOR_STATISTICS=1 to the configure command line. This propagated into the code as preprocessor conditionals using the __RTEMS_USE_TICKS_FOR_STATISTICS__ conditional.
* score: Add _Watchdog_Preinitialize()Sebastian Huber2015-06-133-2/+3
| | | | | | Add an assert to ensure that the watchdog is the proper state for a _Watchdog_Initialize(). This helps to detect invalid initializations which may lead to a corrupt watchdog chain.
* rtems: Do not switch off the FP attributeSebastian Huber2015-06-111-4/+0
| | | | This is necessary after commit 335e5caa9a9e0f28acf94fe4c2871017fcd71794.
* cpukit/rtems: Fix doc for rtems_clock_get_ticks_per_secondGedare Bloom2015-06-091-1/+1
| | | | closes #2357.
* region*.c: Ensure return_status is set when RTEMS_MULTIPROCESSING is enabledJoel Sherrill2015-05-218-8/+0
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* timecounter: Use in RTEMSAlexander Krutwig2015-05-208-126/+14
| | | | | | | | Replace timestamp implementation with FreeBSD bintime and timecounters. New test sptests/sptimecounter02. Update #2271.
* rtems: Avoid Giant lock for eventsSebastian Huber2015-05-192-4/+0
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* score: _Thread_Dispatch_disable_critical()Sebastian Huber2015-05-192-2/+2
| | | | | | | Thread dispatching is disabled in case interrupts are disabled. To get an accurate thread dispatch disabled time it is important to use the interrupt disabled instant in case a transition from an interrupt disabled section to a thread dispatch level section happens.
* score: Replace _Thread_Delay_ended()Sebastian Huber2015-05-192-7/+11
| | | | | | | Use _Thread_Timeout() instead. Use pseudo thread queue for nanosleep() to deal with signals. Close #2130.
* score: Delete _Objects_Put_for_get_isr_disable()Sebastian Huber2015-05-192-2/+0
| | | | | This function is superfluous due to the introduction of fine grained locking.
* score: Fine grained locking for MrsPSebastian Huber2015-05-192-10/+7
| | | | Update #2273.
* score: Remove Giant lock in rtems_clock_tick()Sebastian Huber2015-05-191-10/+1
| | | | Update #2307.
* score: Rework _Thread_Change_priority()Sebastian Huber2015-05-191-9/+11
| | | | | | | | | | | | | 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.
* score: Fine grained locking for mutexesSebastian Huber2015-05-192-11/+2
| | | | Update #2273.
* score: Delete _CORE_semaphore_Seize()Sebastian Huber2015-05-191-1/+1
| | | | Rename _CORE_semaphore_Seize_isr_disable() to _CORE_semaphore_Seize().
* score: Fine grained locking for semaphoresSebastian Huber2015-05-192-10/+18
| | | | Update #2273.
* score: Fine grained locking for message queuesSebastian Huber2015-05-196-17/+57
| | | | | | | | | | | Aggregate several critical sections into a bigger one. Sending and receiving messages is now protected by an ISR lock. Thread dispatching is only disabled in case a blocking operation is necessary. The message copy procedure is done inside the critical section (interrupts disabled). Thus this change may have a negative impact on the interrupt latency in case very large messages are transferred. Update #2273.
* score: Delete Thread_queue_Control::timeout_statusSebastian Huber2015-05-199-11/+19
| | | | | Use a parameter for _Thread_queue_Enqueue() instead to reduce memory usage.
* score: Add Thread_queue_Control::LockSebastian Huber2015-05-196-14/+13
| | | | | | | | | | | Move the complete thread queue enqueue procedure into _Thread_queue_Enqueue_critical(). It is possible to use the thread queue lock to protect state of the object embedding the thread queue. This enables per object fine grained locking in the future. Delete _Thread_queue_Enter_critical_section(). Update #2273.
* score: Generalize _Event_Timeout()Sebastian Huber2015-05-193-72/+7
| | | | | | | Add a thread wait timeout code. Replace _Event_Timeout() with a general purpose _Thread_Timeout() watchdog handler. Update #2273.
* score: Reduce thread wait statesSebastian Huber2015-05-192-4/+4
| | | | | | | | | | Merge THREAD_WAIT_STATE_SATISFIED, THREAD_WAIT_STATE_TIMEOUT, THREAD_WAIT_STATE_INTERRUPT_SATISFIED, and THREAD_WAIT_STATE_INTERRUPT_TIMEOUT into one state THREAD_WAIT_STATE_READY_AGAIN. This helps to write generic routines to block a thread. Update #2273.
* rtems: Use once mutex for timer server initSebastian Huber2015-05-191-2/+3
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* score: New timer server implementationSebastian Huber2015-05-193-399/+227
| | | | | | | | Use mostly the standard watchdog operations. Use a system event for synchronization. This implementation is simpler and offers better SMP performance. Close #2131.
* score: Add Watchdog_IteratorSebastian Huber2015-05-191-0/+6
| | | | | | | | | | Rewrite the _Watchdog_Insert(), _Watchdog_Remove() and _Watchdog_Tickle() functions to use iterator items to synchronize concurrent operations. This makes it possible to get rid of the global variables _Watchdog_Sync_level and _Watchdog_Sync_count which are a blocking point for scalable SMP solutions. Update #2307.
* score: Add header to _Watchdog_Remove()Sebastian Huber2015-05-1914-18/+60
| | | | | | | | Add watchdog header parameter to _Watchdog_Remove() to be in line with the other operations. Add _Watchdog_Remove_ticks() and _Watchdog_Remove_seconds() for convenience. Update #2307.
* score: _Thread_queue_Extract()Sebastian Huber2015-05-195-5/+5
| | | | | Remove thread queue parameter from _Thread_queue_Extract() since the current thread queue is stored in the thread control block.
* score: Delete Thread_queue_Control::stateSebastian Huber2015-04-232-2/+2
| | | | | Use a parameter for _Thread_queue_Enqueue() instead to reduce memory usage.
* score: Add _Thread_Get_interrupt_disable()Sebastian Huber2015-04-217-74/+57
| | | | | | | | | | Remove _Thread_Acquire() and _Thread_Acquire_for_executing(). Add utility functions for the default thread lock. Use the default thread lock for the RTEMS events. There is no need to disable thread dispatching and a Giant acquire in _Event_Timeout() since this was already done by the caller. Update #2273.
* score: _Objects_Get_isr_disable()Sebastian Huber2015-04-211-0/+8
| | | | | | | | Do not disable thread dispatching and do not acquire the Giant lock. This makes it possible to use this object get variant for fine grained locking. Update #2273.
* score: _Objects_Get_isr_disable()Sebastian Huber2015-04-212-8/+16
| | | | | | | Use ISR_lock_Context instead of ISR_Level to allow use of ISR locks for low-level locking. Update #2273.
* score: Rename _Watchdog_Reset()Sebastian Huber2015-04-141-2/+1
| | | | Update #2307.
* score: Add Watchdog_HeaderSebastian Huber2015-04-133-22/+22
| | | | | | | This type is intended to encapsulate all state to manage a watchdog chain. Update #2307.
* score: Split _Watchdog_Adjust()Sebastian Huber2015-04-131-1/+1
| | | | | | | | | Split _Watchdog_Adjust() into _Watchdog_Adjust_backward() and _Watchdog_Adjust_forward(). Remove Watchdog_Adjust_directions, _Watchdog_Adjust_seconds() and _Watchdog_Adjust_ticks(). This avoids to check the same condition again. Update #2307.
* rtems: Atomically suspend/resume tasksSebastian Huber2015-04-082-12/+10
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* score: Add scheduler acquire/releaseSebastian Huber2015-03-241-3/+3
| | | | | | | This is currently a global lock for all scheduler instances. It should get replaced with one lock per scheduler instance in the future. Update #2273.
* Disable deprecated warning on implementation of deprecated methodsJoel Sherrill2015-03-178-4/+46
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* cpukit: Remove old DESCRIPTION: in commentsJoel Sherrill2015-03-113-37/+15
| | | | These were remnants of pre-Doxygen comment style.
* cpukit: deprecate task variables. closes #2293.Gedare Bloom2015-03-102-4/+12
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* cpukit: deprecate rtems_clock_get(). closes #2294.Gedare Bloom2015-03-101-1/+4
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* cpukit: deprecate notepadsGedare Bloom2015-03-101-3/+9
| | | | | | | | | | | | | | | Deprecate Classic API Notepads. Mark task_set/get_note() with the deprecated attribute, and also mark the notepads field. Replace disable with enable option for notepads in confdefs.h, and make notepads disabled by default. The previous option CONFIGURE_DISABLE_CLASSIC_API_NOTEPADS is now unused and will emit a compile-time warning. A new option CONFIGURE_ENABLE_CLASSIC_API_NOTEPADS is available to turn on notepads, but it also will emit a compile-time warning to indicate that notepads are deprecated. Closes #2265
* Fix more Doxygen typosJoel Sherrill2015-03-061-1/+1
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* Fix a number of minor Doxygen formatting issuesJoel Sherrill2015-03-062-5/+5
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* score: Implement fine-grained locking for eventsSebastian Huber2015-03-0512-221/+205
| | | | | | | Use the ISR lock of the thread object to protect the event state and use the Giant lock only for the blocking operations. Update #2273.
* score: Simplify and fix signal deliverySebastian Huber2015-03-051-1/+0
| | | | | | | Deliver the POSIX signals after the thread state was updated to avoid race-conditions on SMP configurations. Update #2273.
* score: Update _Thread_Heir only if necessarySebastian Huber2015-03-051-35/+15
| | | | | | | | | | | | | | | | | | | | Previously, the _Thread_Heir was updated unconditionally in case a new heir was determined. The _Thread_Dispatch_necessary was only updated in case the executing thread was preemptible or an internal thread was unblocked. Change this to update the _Thread_Heir and _Thread_Dispatch_necessary only in case the currently selected heir thread is preemptible or a dispatch is forced. Move the schedule decision into the change priority operation and use the schedule operation only in rtems_task_mode() in case preemption is enabled or an ASR dispatch is necessary. This is a behaviour change. Previously, the RTEMS_NO_PREEMPT also prevented signal delivery in certain cases (not always). Now, signal delivery is no longer influenced by RTEMS_NO_PREEMPT. Since the currently selected heir thread is used to determine if a new heir is chosen, non-preemptible heir threads currently not executing now prevent a new heir. This may have an application impact, see change test tm04. Document this change in sp04. Update #2273.
* score: Add and use PRIORITY_PSEUDO_ISRSebastian Huber2015-03-051-1/+1
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* score: C/C++ compatibility macros for ISR locksSebastian Huber2015-03-051-0/+45
| | | | Update #2273.
* libnetworking: Fix close of active socketsSebastian Huber2015-01-201-0/+5
| | | | | | | Send a special event to notify tasks waiting for a socket state change in case this socket gets closed. This prevents a use after free. Close #785.
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