Commit Graph

30 Commits

Author SHA1 Message Date
Gregory Nutt
f2e6e131d4 include/nuttx/wdog.h: Add some additional comments. 2020-04-07 17:40:46 +01:00
Gregory Nutt
c21d198ac5 sched/wdog: Update to Apache 2.0 Headers
And run each .c and .h file through nxstyle to assure compliance.
2020-03-11 18:35:18 -03:00
Xiang Xiao
6a3c2aded6 Fix wait loop and void cast (#24)
* Simplify EINTR/ECANCEL error handling

1. Add semaphore uninterruptible wait function
2 .Replace semaphore wait loop with a single uninterruptible wait
3. Replace all sem_xxx to nxsem_xxx

* Unify the void cast usage

1. Remove void cast for function because many place ignore the returned value witout cast
2. Replace void cast for variable with UNUSED macro
2020-01-02 10:54:43 -06:00
Gregory Nutt
b5111d2c38 tools/nxstyle.c: Add logic to detect if there is a blank line following the final right brace. sched/: Applied the modified nxstyle to all C file as a test. 2019-10-24 11:02:42 -06:00
Gregory Nutt
bcb4409756 sched/wdog/wd_start.c: Back out a kludge-workaround for an SDCC compiler problem fix back in Feb 2017 by commit b8f3bd857b. That workaround now appears to conflict with newer GCC versions using unsupport warning options. 2019-10-04 09:10:15 -06:00
Gregory Nutt
f6b9fe5b14 tools/nxstyle.c: Add logic to detect a blank line following a left brace or a blank line preceding a right brace. 2019-03-10 09:53:33 -06:00
ligd
441cf6c207 sched/wdog: improve accuracy of wd_gettime() in tickless mode 2018-11-09 09:26:34 -06:00
Gregory Nutt
8e203e09d4 Costmetic changes 2018-08-19 11:19:43 -06:00
Gregory Nutt
b54ffe858a Standardization of some function headers. 2018-03-13 09:52:27 -06:00
Gregory Nutt
7cf88d7dbd Make sure that labeling is used consistently in all function headers. 2018-02-01 10:00:02 -06:00
Gregory Nutt
da50646bcf sched/wdog: wd_start() is an internal OS function and should not set the errno value. Reviewed and updated every call to wd_start() to verify if return value is used and if so if the errno value is accessed. 2018-01-31 10:09:14 -06:00
Gregory Nutt
0de294a586 Fix lots of occurrences of 'the the', 'the there', 'the these', 'the then', 'the they. 2017-05-11 13:35:56 -06:00
Gregory Nutt
12a4a58aa6 Update some wdog-related comments 2017-02-24 10:58:37 -06:00
Gregory Nutt
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
Gregory Nutt
1cdc746726 Rename CONFIG_DEBUG to CONFIG_DEBUG_FEATURES 2016-06-11 14:14:08 -06:00
Gregory Nutt
970b34ae8f Remove some empty file section section header comments 2016-02-17 17:17:44 -06:00
Gregory Nutt
6e3107650d nuttx/sched: Replace irqsave() with enter_critical_section(); replace irqrestore() with leave_critical_section() 2016-02-14 08:17:46 -06:00
Dimitry Kloper
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
Gregory Nutt
79d554939e sched/: Fix some spacing issues 2015-10-07 19:59:14 -06:00
Gregory Nutt
cb9e27c3b0 Standardize naming used for public data and function groupings 2015-10-02 16:30:35 -06:00
Gregory Nutt
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
Gregory Nutt
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
Gregory Nutt
fd484c4de9 Add support for statically allocated watchdog timer structures 2014-08-22 08:46:34 -06:00
Gregory Nutt
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
Gregory Nutt
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
Gregory Nutt
2bc07a03ae Correct release notes, updat changelog, fix some conditional compilation 2014-08-15 06:56:42 -06:00
Gregory Nutt
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
Gregory Nutt
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
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
0f318e9249 Move watchdog functions from sched/ to sched/wdog 2014-08-08 14:21:48 -06:00