Gregory Nutt
1da3a5fa61
sched: Disable priority inheritance on all semaphores used for signaling
2016-11-03 12:42:02 -06:00
Gregory Nutt
8669183852
sched/pthread and task: When a pthread is started, there is a small bit of logic that will run on the thread of execution of the new pthread. In the case where the new pthread has a lower priority than the parent thread, then this could cause both the parent thread and the new pthread to be blocked at the priority of the lower priority pthread (assuming that CONFIG_PRIORITY_INHERITANCE is not selected).
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This change temporarily boosts the priority of the new pthread to at least the priority of the new pthread to at least the priority of the parent thread. When that bit of logic has executed on the thread of execution of the new pthread, it will then drop to the correct priority (if necessary) before calling into the new pthread's entry point.
2016-10-01 11:38:22 -06:00
Gregory Nutt
a1469a3e95
Add CONFIG_DEBUG_ERROR. Change names of *dbg() * *err()
2016-06-11 15:50:49 -06:00
Gregory Nutt
143d287f11
Fix some missing header file inclusions and a misplaced semi-colon from recent commits
2016-02-21 11:27:55 -06:00
Gregory Nutt
a633353ec3
Add a CPU affinity set to the TCB if SMP is enable and use this CPU set as a mask for determining which CPUs the thread may run on. Add an affinity field to the attrributes to permit controlling which CPUs a pthread may run on. Implements pthread_att_setaffinity_np() and pthread_attr_getaffinity_np().
2016-02-19 17:33:35 -06:00
Gregory Nutt
74db48202e
sched/: Replace explict references to g_readytorun with indirect references via the this_task() macro
2016-02-06 17:44:41 -06:00
Gregory Nutt
48da5aa496
sched/pthread/: CRITICAL BUGFIX: Logic was wiping out the indication that of the type of a pthread. Hence, it could be confused as a task. Found because this was causing a crash when /proc/nnn/cmdline was printed.
2015-11-28 10:05:36 -06:00
Gregory Nutt
79d554939e
sched/: Fix some spacing issues
2015-10-07 19:59:14 -06:00
Gregory Nutt
27e21710fd
This is basically a complete redesign of the sporadic scheduling logic due to limitations in the initial design
2015-07-25 12:50:53 -06:00
Gregory Nutt
a1031417e8
Comment out part of sporadic scheduler logic: Part of replenishment logic is bogus
2015-07-24 18:18:58 -06:00
Gregory Nutt
ea7dbc984b
Add basic sporadic schedule state machine
2015-07-24 09:03:21 -06:00
Gregory Nutt
3b1306078b
Sporadic Scheduler: Ensure that the replenishment period is greater than or equal to the budget period
2015-07-23 15:08:41 -06:00
Gregory Nutt
5baa738019
Most cosmetic, but includes some fixes to some range checking
2015-07-23 14:36:49 -06:00
Gregory Nutt
9095e8eab4
include/, sched/, and libc/: Add support for sporadic scheduling parameters in struct sched_param, posix_spawnattr_t, and pthread_attr_t. Update all user interfaces to pass sporadic scheduling parameters. Feature is dependent on EXPERIMENTAL and no changes have yet been made to core scheduling logic.
2015-07-23 13:16:32 -06:00
Gregory Nutt
aa90da2bc8
pthread_create: Fix an (unlikely) error in fallback value in the event of a failure (which should never occur)
2015-07-23 11:25:25 -06:00
Gregory Nutt
146bdc3c93
TCB: Increase the size of the scheduling policy field from 1 to 2 bits to allow additional, planned scheduling policies
2015-07-23 10:15:07 -06:00
Jussi Kivilinna
13d9383679
Group binding needs to be cleared before sched_releasetcb(), as otherwise group_leave() will be called and group->tg_nmembers decremented or group being released. group_leave() should be called only after group_join() is called, not after group_bind(). From Jussi Kivilinna.
2015-07-01 06:24:34 -06:00
Gregory Nutt
937f9f23f1
strncpy will not copy the terminating \0 into the destination if the source is larger than the size of the destination. Ensure that the last byte is always zero and let strncpy only copy CONFIG_TASK_NAME_SIZE bytes. The issue of unterminated names can be observed in ps when creating a pthread while CONFIG_TASK_NAME_SIZE is set to 8.
2014-12-17 12:24:02 -06:00
Gregory Nutt
e953fb11cd
A const storage class to to phthread parameters. From Freddie Chopin
2014-09-08 06:21:48 -06:00
Gregory Nutt
1822b86373
Fix some conditional compilation in kernel build mode. And, while we are touching this logic, make g_default_pthread_attr const.
2014-09-07 10:46:58 -06:00
Gregory Nutt
205260d5e2
Reanem kzalloc to kmm_zalloc for consistency
2014-08-31 17:34:44 -06:00
Gregory Nutt
e3ff0689bb
Rename CONFIG_NUTTX_KERNEL to CONFIG_BUILD_PROTECTED; Partially integrate new CONFIG_BUILD_KERNEL
2014-08-29 14:47:22 -06:00
Gregory Nutt
1624e2fbcf
Change CONFIG_ADDRENV to CONFIG_ARCH_ADDRENV; change how it is selected -- the architecure must first declare support
2014-08-24 06:42:11 -06:00
Gregory Nutt
e79d6e3c8b
A few fixes for compilation errors due to recent address environment fixes
2014-08-22 15:55:00 -06:00
Gregory Nutt
1d586e6136
An address environment is the property of a task group, not of a thread
2014-08-22 12:32:34 -06:00
Gregory Nutt
d798dd37a7
Replace os_internal.h with sched/sched.h in files that actually reference something in sched.h
2014-08-08 17:53:55 -06:00
Gregory Nutt
d4b56eb3cc
Move clock functions from sched/ to sched/clock
2014-08-08 14:43:02 -06:00
Gregory Nutt
0f318e9249
Move watchdog functions from sched/ to sched/wdog
2014-08-08 14:21:48 -06:00
Gregory Nutt
4ff17b3904
Move group logic from sched/ to sched/group
2014-08-08 14:06:42 -06:00
Gregory Nutt
cb79407ced
Move all pthread files from sched/ to sched/pthread
2014-08-08 12:55:02 -06:00
