Gregory Nutt
dca77fa06a
sigtimedwait: When timer expires, up_unblock_task() is called. This is okay in the single CPU case because interrupts are disable in the timer interrupt handler. But it is insufficient in the SMP case. enter_ and leave_critical_section() must be called in order to manage spinlocks correctly.
2017-02-24 10:07:23 -06:00
Gregory Nutt
b52e4e5ecd
Move cancellation point definitions to their own header file.
2016-12-10 09:08:26 -06:00
Gregory Nutt
bc3ca25cc7
Cancellation points: Close up some logic to eliminte some race conditions.
2016-12-10 08:36:58 -06:00
Gregory Nutt
7fce8022c6
Finishes all cancellation point logic
2016-12-09 16:50:34 -06:00
Gregory Nutt
e24f281401
This commit adds a new internal interfaces and fixes a problem with three APIs in the SMP configuration. The new internal interface is sched_cpu_pause(tcb). This function will pause a CPU if the task associated with 'tcb' is running on that CPU. This allows a different CPU to modify that OS data stuctures associated with the CPU. When the other CPU is resumed, those modifications can safely take place.
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The three fixes are to handle cases in the SMP configuration where one CPU does need to make modifications to TCB and data structures on a task that could be running running on another CPU. Those three cases are task_delete(), task_restart(), and execution of signal handles. In all three cases the solutions is basically the same: (1) Call sched_cpu_pause(tcb) to pause the CPU on which the task is running, (2) perform the necessary operations, then (3) call up_cpu_resume() to restart the paused CPU.
2016-11-20 07:57:18 -06:00
Gregory Nutt
5ea77118aa
Explicitly initialize the group tg_exitsem with sem_init(). The existing logic worked because the correct initialization value is all zero, but it is better to initialize the semaphore explicitly. Noted by Jouko Holopainen.
2016-08-10 07:38:07 -06:00
Gregory Nutt
13cac3b592
sched/: Change some *err() message to *info() messages if what was a *dbg() message does not indicate and error condition.
2016-06-11 16:42:42 -06:00
Gregory Nutt
a1469a3e95
Add CONFIG_DEBUG_ERROR. Change names of *dbg() * *err()
2016-06-11 15:50:49 -06:00
Gregory Nutt
1cdc746726
Rename CONFIG_DEBUG to CONFIG_DEBUG_FEATURES
2016-06-11 14:14:08 -06:00
Gregory Nutt
0fb035f76b
Standardize some naming in code section comments
2016-02-21 18:09:04 -06:00
Gregory Nutt
6d97249348
Trivial, cosmetic changes
2016-02-18 14:56:48 -06:00
Gregory Nutt
7d9287958f
Minor simplication to last commit; Update TODO list
2016-02-18 09:21:43 -06:00
Gregory Nutt
52fbbaf778
1. SMP: Fix an assertion. SMP-specific change accidentally made in non-SMP code
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2. Move list of signal actions from the task TCB to the task group. Signal handlers are a property of the entire task group and not of individual threads in the group. I know, I preferred it the other way too but this is more compliant with POSIX.
2016-02-18 08:34:54 -06:00
Gregory Nutt
269c242f7b
Update TODO list
2016-02-17 16:51:58 -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
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
f348e68069
Update to use 64-bit timer when available
2016-01-21 11:54:26 -06:00
Gregory Nutt
c1fff4706c
signals: Adds a very limited, minimal implementation for SIGEV_THREAD
2015-12-30 15:01:14 -06:00
Gregory Nutt
f45e2a247e
Cosmetic fix to comment
2015-12-11 10:06:40 -06:00
Gregory Nutt
79d554939e
sched/: Fix some spacing issues
2015-10-07 19:59:14 -06:00
Gregory Nutt
5b51a9fcdd
Standardize the width of all comment boxes in C files
2015-10-02 17:43:18 -06:00
Gregory Nutt
cb9e27c3b0
Standardize naming used for public data and function groupings
2015-10-02 16:30:35 -06:00
Gregory Nutt
768d892188
Add si_errno to siginfo_t
2015-08-14 10:10:32 -06:00
Gregory Nutt
4adda9d428
Fix numerous typos in configuration variable names. Tracked down by Alan Carvalho de Assis
2015-05-23 17:08:35 -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
cc77a28f40
If HAVE_GROUP_MEMBERS is not defined, then pthread_kill() really is the same as kill()
2015-05-13 20:34:21 -06:00
Gregory Nutt
4417728955
Re-implemened pthread_kill(). It as just a simple wrapper around kill() but since the correct dispatching of singles for multi-threaded task groups has been implemented, calling kill() does no work. The corrected implementation of pthread_kill() will direct the signal specifically to the specific pthread and no other.
2015-05-13 14:43:43 -06:00
Gregory Nutt
b4423c1eed
Make some file section headers more consistent with standard
2015-04-08 06:47:36 -06:00
Gregory Nutt
322f9f401c
Simplify how C source files are selected in the build
2014-10-07 07:42:36 -06:00
Gregory Nutt
47d55c28dc
Mostly cosmetic changes
2014-09-04 10:28:38 -06:00
Gregory Nutt
1780810d3d
Rename kmalloc to kmm_malloc for consistency
2014-08-31 17:26:36 -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
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
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
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
224ee05957
Move a few files in sched/ that did not seem to have a home to sched/signal and sched/task
2014-08-08 16:57:47 -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
e10a23ae50
Move environment files from sched/ to sched/environ
2014-08-08 13:53:29 -06:00
Gregory Nutt
cb79407ced
Move all pthread files from sched/ to sched/pthread
2014-08-08 12:55:02 -06:00
Gregory Nutt
0385a00a60
Move signal-related files from sched/ to sched/signal
2014-08-08 12:44:44 -06:00
