Commit Graph

106 Commits

Author SHA1 Message Date
ligd
631071cded Squashed commit of the following:
sched/wqueue:  Modify high priority work queue to support multiple threads.

    sched/wqueue and libs/libc/wqueue:  workqueues don't need set global data to zero since .bss is cleared automatically.  Removing this unnecessary initialization also avoids the loss the work items queued before initialization.
2018-08-25 14:52:13 -06:00
Gregory Nutt
8fdbb1e0a4 Elimate use of the non-standard type systime_t and replace it the equivalent, standard type clock_t
Squashed commit of the following:

    sched:  Rename all use of system_t to clock_t.
    syscall:  Rename all use of system_t to clock_t.
    net:  Rename all use of system_t to clock_t.
    libs:  Rename all use of system_t to clock_t.
    fs:  Rename all use of system_t to clock_t.
    drivers:  Rename all use of system_t to clock_t.
    arch:  Rename all use of system_t to clock_t.
    include:  Remove definition of systime_t; rename all use of system_t to clock_t.
2018-06-16 12:16:13 -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
50ca32e254 Squashed commit of the following:
sched/:  Convert legitimate uses of task_create() to nxtask_create().  Review handling of returned values from all uses of kthread_create() (as well as nxtask_create()).
    graphics/:  Review return values for all calls to kthread_start() because it no longer returns an errno.
    drivers/:  threads started by drivers should be kernel threads, not user tasks.  Review return values for all calls to kthread_start() because it no longer returns an errno.
    configs/:  threads started by board bringup logic should be kernel threads, not user tasksi (part 2 of 2).
    sched/task:  Add nxtask_create().  Kthread_create() and nxtask_create() are internal OS functions and should not modify the errno variable.  configs/:  threads started by board bringup logic should be kernel threads, not user tasks.
2018-01-31 16:11:54 -06:00
Gregory Nutt
3521aaf944 Squashed commit of the following:
binfmt/, configs/, grahics/, libc/, mm/, net/, sched/:  OS references to the errno variable should always use the set_errno(), get_errno() macros
    arch/arm/src/stm32 and stm32f7:  Architecture-specific code is not permitted to modify the errno variable.  drivers/ and libc/:  OS references to the errno variable should always use the set_errno(), get_errno() macros
2018-01-30 17:57:36 -06:00
Gregory Nutt
170a50c690 Squashed commit of the following:
sched/sched:  Correct some build issues introduced by last set of changes.
    sched/sched:  Add new internal OS function nxsched_setaffinity() that is identical to sched_isetaffinity() except that it does not modify the errno value.  All usage of sched_setaffinity() within the OS is replaced with nxsched_setaffinity().
    sched/sched:  Internal functions sched_reprioritize() and sched_setpriority() no longer movidify the errno value.  Also renamed to nxsched_reprioritize() and sched_setpriority().
    sched/sched:  Add new internal OS function nxsched_getscheduler() that is identical to sched_getscheduler() except that it does not modify the errno value.  All usage of sched_getscheduler() within the OS is replaced with nxsched_getscheduler().
    sched/sched:  Add new internal OS function nxsched_setparam() that is identical to sched_setparam() except that it does not modify the errno value.  All usage of sched_setparam() within the OS is replaced with nxsched_setparam().
    sched/sched:  Add new internal OS function nxsched_getparam() that is identical to sched_getparam() except that it does not modify the errno value (actually, the previous value erroneously neglected to set the errno value to begin with, but this fixes both issues).  All usage of sched_getparam() within the OS is replaced with nxsched_getparam().
2018-01-30 11:08:18 -06:00
Gregory Nutt
5b385f4d4d kthread_create(): Rename kernel_thread() to kthread_create() for better naming consistency with task_create() and kthread_delete(). 2017-10-16 11:38:00 -06:00
Gregory Nutt
9e25d89223 Squashed commit of the following:
Replace all usage kill() in the OS proper with nxsig_kill().

    sched/signal:  Add nxsig_kill() which is functionally equivalent to kill() except that it does not modify the errno variable.
2017-10-07 08:22:18 -06:00
Gregory Nutt
936df1bcb5 Adds new OS internal functions nxsig_sleep() and nxsig_usleep. These differ from the standard sleep() and usleep() in that (1) they don't cause cancellation points, and (2) don't set the errno variable (if applicable). All calls to sleep() and usleep() changed to calls to nxsig_sleep() and nxsig_usleep().
Squashed commit of the following:

    Change all calls to usleep() in the OS proper to calls to nxsig_usleep()

    sched/signal:  Add a new OS internal function nxsig_usleep() that is functionally equivalent to usleep() but does not cause a cancellaption point and does not modify the errno variable.

    sched/signal:  Add a new OS internal function nxsig_sleep() that is functionally equivalent to sleep() but does not cause a cancellaption point.
2017-10-06 10:15:01 -06:00
Gregory Nutt
fdd0dcc0b6 This commit adds internal versions of the signal interfaces:
sigtimedwait() -> nxsig_timedwait()
  sigwaitinfo()  -> nxsig_waitinfo()
  nanosleep()    -> nxsig_nanosleep()

The internal OS versions differ from the standard application interfaces in that:

  - They do not create cancellation points, and
  - they do not modify the application's errno variable

Squashed commit of the following:

    sched/signal:  Replace all usage of sigwaitinfo(), sigtimedwait(), and nanosleep() with the OS internal counterparts nxsig_waitinfo(), nxsig_timedwait(), and nxsig_nanosleep().

    sched/signal:  Add nxsig_nanosleep().  This is an internal OS version of nanosleep().  It differs in that it does not set the errno varaiable and does not create a cancellation point.

    sched/signal:  Add nxsig_timedwait() and nxsig_waitinfo().  These are internal OS versions of sigtimedwait() and sigwaitinfo().  They differ in that they do not set the errno varaiable and they do not create cancellation points.
2017-10-06 08:28:20 -06:00
Gregory Nutt
4993b0cb66 Work queue: In a recent change for a problem noted by Pascal Speck, it was noted (again by Pascal Speck) that the cancellation of existing work and replacement with new work must be atomic. Thanks, Pascal. 2017-08-31 07:43:47 -06:00
Gregory Nutt
92f44c5607 Networking: Move net/inet/net_monitor.c to net/tcp/tcp_monitor.c in preparation for design change to fix monitoring of duplicated sockets. 2017-08-29 08:40:13 -06:00
Gregory Nutt
bbf4d5048a work_queue() must cancel existing work prior to queuing new work, otherwise the work queue can become corrupted. Problem noted by Pascal Speck. 2017-08-28 07:46:48 -06:00
Arjun Hary
b274a97840 Miscellaneous fixes from astyle tool. 2017-08-14 17:19:27 -06:00
Gregory Nutt
031fbfc6bc sched/: Remove dangling space at the end of lines. 2017-06-28 13:33:04 -06:00
Gregory Nutt
2245dddaf9 Break up some long lines 2017-06-14 13:42:56 -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
David Sidrane
55fb9645a7 Guard from pend_reprios overlow 2017-03-15 07:42:55 -10:00
Heesub Shin
8e94d8e7cc Signal sent from work_signal() may interrupt the low priority worker thread that is already running. For example, the worker thread that is waiting for a semaphore could be woken up by the signal and break any synchronization assumption as a result. It also does not make any sense to send signal if it is already running and busy. This commit fixes it. 2016-11-06 08:00:12 -06:00
Gregory Nutt
18ce4ff57b sched/: Review and correct some stylistic inconsistencies 2016-08-07 08:25:30 -06:00
Gregory Nutt
2a751068e6 Without lowsyslog() *llerr() is not useful. Eliminate and replace with *err(). 2016-06-20 12:44:38 -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
e99301d7c2 Rename *lldbg to *llerr 2016-06-11 14:55:27 -06:00
Gregory Nutt
fc3540cffe Replace all occurrences of vdbg with vinfo 2016-06-11 11:59:51 -06:00
linfei_chen
4b18b8d1e3 LP Work Queue: Fix test to find and idle worker thread. 2016-03-22 08:15:49 -06:00
Gregory Nutt
a20863f6c0 Remove some empty file section section header comments 2016-02-17 17:15:08 -06:00
Gregory Nutt
6aeb4a52e8 Performance improvement: Idle loop should not take MM semaphore if there is not garbage to be collected. This can cause loss of performance and thrashing in tasking 2016-02-16 19:33:22 -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
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2bacc40350 Fix mismatched prototype error in work_queue() 2016-01-24 12:48:24 -06:00
Gregory Nutt
f348e68069 Update to use 64-bit timer when available 2016-01-21 11:54:26 -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
a813baef0a User workqueue, cosmetic changes 2015-09-30 14:03:55 -06:00
Gregory Nutt
4cd57e1e4e Work queues: Logic that sets the queued indication and the logic that does the actual queuing must be atomic 2015-09-30 11:04:29 -06:00
Gregory Nutt
6bc9a0c9c6 Fix backward calculation in the work queue timing. From Liio Chen via the PX4 repository 2015-01-27 06:17:02 -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
c9563da832 Missing workqueue logic 2014-10-12 17:19:51 -06:00
Gregory Nutt
c9d7472d68 Change naming of HP work queue configuration varaibles to be symmetric with LP work queue naming 2014-10-11 17:03:44 -06:00
Gregory Nutt
1a27a4d4c0 Eliminate warnings 2014-10-11 17:02:35 -06:00
Gregory Nutt
bb1d91bd83 Make building of low-priority work queue independent of also building the high-priority work queue 2014-10-11 14:43:24 -06:00
Gregory Nutt
c0b703ac73 Fix some missing conditional compilation that caused build failures in some configurations 2014-10-11 08:50:00 -06:00
Gregory Nutt
d2424ac65c Fix a couple of problems introduced in the last commmits 2014-10-11 08:29:26 -06:00
Gregory Nutt
0218f01f12 If there mutliple low-priority worker threads, only one needs to perform garbage collection 2014-10-11 07:09:21 -06:00
Gregory Nutt
234f73cb09 Add logic for priority inheritance with multiple worker threads. How should this work? Tentatively, the all get reprioritized together. It would be best to just reprioritize the single thread doing the high priority work, but we don't know which that will be in advance 2014-10-10 17:47:39 -06:00
Gregory Nutt
4a4b3ac537 Add support for multiple low-priority worker threads 2014-10-10 16:24:50 -06:00
Gregory Nutt
438e3e1a90 Fix a few bugs introduced in the last checkin 2014-10-10 15:06:13 -06:00
Gregory Nutt
cf59a195ba User-mode work queue logic should not disable interrupts 2014-10-10 14:52:04 -06:00
Gregory Nutt
16a3e83258 Add support for delays of different durations in work queue processing 2014-10-10 13:21:37 -06:00
Gregory Nutt
75e7a4dbfc Minor changes to work queue timing logic 2014-10-10 12:27:11 -06:00
Gregory Nutt
b2cebaa9d4 Modularize starting of worker threads to better isolate individual initialization characteristics 2014-10-10 09:38:28 -06:00
Gregory Nutt
2015fd76e2 Fix some conditional logic in last work queue repartitioning change 2014-10-10 08:47:41 -06:00
Gregory Nutt
1afc9773ac Decoupling work queue data structures. This is part of the preparation to support multiple low-priority worker threads 2014-10-10 08:35:58 -06:00
Gregory Nutt
6220256a09 Repartition work queue code. Move kernel-specific parts from libc/wqueue to sched/wqueue 2014-10-10 06:22:51 -06:00
Gregory Nutt
7f36c4e97b Update some Kconfig comments; Add a upper limit on the lower priority worker thread for priority inheritance 2014-10-07 17:11:26 -06:00
Gregory Nutt
d7843c8e24 Add support for priority inheritance on the low priority worker queue 2014-10-07 07:41:52 -06:00