12a4a58aa6
Update some wdog-related comments
2017-02-24 10:58:37 -06:00
69e9f8638d
Most interrupt handling logic interacts with tasks via standard mechanism such as sem_post, sigqueue, mq_send, etc. This all call enter_critical_section and are assumed to be safe in the SMP case.
...
But certain logic interacts with tasks in different ways. The only one that comes to mind are wdogs. There is a tasking interface that to manipulate wdogs, and a different interface in the timer interrupt handling logic to manage wdog expirations.
In the normal case, this is fine. Since the tasking level code calls enter_critical_section, interrupts are disabled an no conflicts can occur. But that may not be the case in the SMP case. Most architectures do not permit disabling interrupts on other CPUs so enter_critical_section must work differently: Locks are required to protect code.
So this change adds locking (via enter_critical section) to wdog expiration logic for the the case if the SMP configuration.
2016-11-18 13:57:30 -06:00
18ce4ff57b
sched/: Review and correct some stylistic inconsistencies
2016-08-07 08:25:30 -06:00
1cdc746726
Rename CONFIG_DEBUG to CONFIG_DEBUG_FEATURES
2016-06-11 14:14:08 -06:00
970b34ae8f
Remove some empty file section section header comments
2016-02-17 17:17:44 -06:00
6e3107650d
nuttx/sched: Replace irqsave() with enter_critical_section(); replace irqrestore() with leave_critical_section()
2016-02-14 08:17:46 -06:00
b48ca00cd5
The delay parameter has 'int' type while explicit int32_t is used in sigtimedwait() (sig_timedwait.c) This can lead to wrong argument for systems that have default int size different than int32 (namely AVR).
2016-01-05 07:58:04 -06:00
79d554939e
sched/: Fix some spacing issues
2015-10-07 19:59:14 -06:00
0f90500f72
Standardize the width of all comment boxes in header files
2015-10-02 17:48:24 -06:00
5b51a9fcdd
Standardize the width of all comment boxes in C files
2015-10-02 17:43:18 -06:00
cb9e27c3b0
Standardize naming used for public data and function groupings
2015-10-02 16:30:35 -06:00
0b2fbd7a2c
Fix a DEBUGASSERTion
2015-08-21 12:33:14 -06:00
89b5ef8d35
wdogs: Fix counting of free, pre-allocated wdog timers. The could could get decremented below zero in some situations
2015-08-21 11:30:22 -06:00
ea7dbc984b
Add basic sporadic schedule state machine
2015-07-24 09:03:21 -06:00
3adcae8ffb
Update the type passed to watchdog timer handlers. Using uint32_t is a problem for 64-bit machines.
2015-05-18 08:53:42 -06:00
b4423c1eed
Make some file section headers more consistent with standard
2015-04-08 06:47:36 -06:00
b3a1939020
Sempahores: Add logic to clean up after task_delete() or pthread_cancel() if the task happens to be waiting on a semaphore when it is cancelled
2014-12-13 12:02:25 -06:00
1aa528a572
More fixes to problems noted by cppcheck. Some are kind of risky; some are real bugs.
2014-11-25 14:10:35 -06:00
2caeead612
Fix an important bug in the watchdog creation logic
2014-11-10 18:15:26 -06:00
322f9f401c
Simplify how C source files are selected in the build
2014-10-07 07:42:36 -06:00
1780810d3d
Rename kmalloc to kmm_malloc for consistency
2014-08-31 17:26:36 -06:00
fd484c4de9
Add support for statically allocated watchdog timer structures
2014-08-22 08:46:34 -06:00
ad9b3f8ab8
wdog.h does not contain any application interface, only internal OS interface. Further, it is non-standard. Move wdog.h from include/ to include/nuttx. For the same reason, move the description of the watchdog timer interfaces from the Users Guide to the Porting Guide.
2014-08-21 11:16:55 -06:00
952d87587f
If we run out of pre-allocated watchdog times, the logic will allocate additional timers from the heap. A reserve of pre-allocated watchdog timers is maintained so that there will always be timers available for interrupt handlers.
2014-08-21 08:44:29 -06:00
2bc07a03ae
Correct release notes, updat changelog, fix some conditional compilation
2014-08-15 06:56:42 -06:00
649ef76f71
Timers: In Tickless mode, need to stop the interval timer before inserted a new delay into the timer list. Otherwise, the time is incorrect on the first entry of the list
2014-08-11 08:25:25 -06:00
6bd52bce06
Tickless OS: Correct a bug: logic to detect changes in head of timer list was wrong.
2014-08-10 13:12:18 -06:00
e1769b22f1
Remove os_internal.h it has been replace by several new header files under sched/. There have been some sneak inclusion paths via os_internal.h, so expect a few compilation errors for some architectures
2014-08-08 18:39:28 -06:00
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
0f318e9249
Move watchdog functions from sched/ to sched/wdog
2014-08-08 14:21:48 -06:00
Gregory Nutt