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Add support for delays of different durations in work queue processing

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This commit is contained in:
Gregory Nutt
2014-10-10 13:21:37 -06:00
parent 75e7a4dbfc
commit 16a3e83258
10 changed files with 103 additions and 67 deletions
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include/nuttx/wqueue.h
+32 -17
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@@ -44,7 +44,7 @@
#include <sys/types.h>
#include <stdint.h>
#include <signal.h>
#include <semaphore.h>
#include <queue.h>
/****************************************************************************
@@ -66,11 +66,14 @@
* build (CONFIG_SCHED_KERNEL=n) but must be defined in kernel mode
* in order to build the high priority work queue.
* CONFIG_SCHED_WORKPRIORITY - The execution priority of the worker
* thread. Default: 192
* thread. Default: 224
* CONFIG_SCHED_WORKPERIOD - How often the worker thread checks for
* work in units of microseconds. Default: 50*1000 (50 MS).
* work in units of microseconds. If the high priority worker thread is
* performing garbage collection, then the default is 50*1000 (50 MS).
* Otherwise, if the lower priority worker thread is performing garbage
* collection, the default is 100*1000.
* CONFIG_SCHED_WORKSTACKSIZE - The stack size allocated for the worker
* thread. Default: CONFIG_IDLETHREAD_STACKSIZE.
* thread. Default: 2048.
* CONFIG_SIG_SIGWORK - The signal number that will be used to wake-up
* the worker thread. Default: 17
*
@@ -86,7 +89,20 @@
* CONFIG_SCHED_LPWORKPERIOD - How often the lower priority worker thread
* checks for work in units of microseconds. Default: 50*1000 (50 MS).
* CONFIG_SCHED_LPWORKSTACKSIZE - The stack size allocated for the lower
* priority worker thread. Default: CONFIG_IDLETHREAD_STACKSIZE.
* priority worker thread. Default: 2048.
*
* The user-mode work queue is only available in the protected or kernel
* builds. This those configurations, the user-mode work queue provides the
* same (non-standard) facility for use by applications.
*
* CONFIG_SCHED_USRWORK. If CONFIG_SCHED_USRWORK is also defined then the
* user-mode work queue will be created.
* CONFIG_SCHED_USRWORKPRIORITY - The minimum execution priority of the lower
* priority worker thread. Default: 100
* CONFIG_SCHED_USRWORKPERIOD - How often the lower priority worker thread
* checks for work in units of microseconds. Default: 100*1000 (100 MS).
* CONFIG_SCHED_USRWORKSTACKSIZE - The stack size allocated for the lower
* priority worker thread. Default: 2048.
*/
/* Is this a protected build (CONFIG_BUILD_PROTECTED=y) */
@@ -147,22 +163,20 @@
#ifdef CONFIG_SCHED_WORKQUEUE
/* We are building work queues... Work queues need signal support */
#ifdef CONFIG_DISABLE_SIGNALS
# warning "Worker thread support requires signals"
#endif
/* High priority, kernel work queue configuration ***************************/
#ifdef CONFIG_SCHED_HPWORK
# ifndef CONFIG_SCHED_WORKPRIORITY
# define CONFIG_SCHED_WORKPRIORITY 192
# define CONFIG_SCHED_WORKPRIORITY 224
# endif
# ifndef CONFIG_SCHED_WORKPERIOD
# define CONFIG_SCHED_WORKPERIOD (50*1000) /* 50 milliseconds */
# ifdef CONFIG_SCHED_LOWORK
# define CONFIG_SCHED_WORKPERIOD (100*1000) /* 100 milliseconds */
# else
# define CONFIG_SCHED_WORKPERIOD (50*1000) /* 50 milliseconds */
# endif
# endif
# ifndef CONFIG_SCHED_WORKSTACKSIZE
@@ -223,11 +237,11 @@
#ifdef CONFIG_SCHED_USRWORK
# ifndef CONFIG_SCHED_USRWORKPRIORITY
# define CONFIG_SCHED_USRWORKPRIORITY 50
# define CONFIG_SCHED_USRWORKPRIORITY 100
# endif
# ifndef CONFIG_SCHED_USRWORKPERIOD
# define CONFIG_SCHED_USRWORKPERIOD (50*1000) /* 50 milliseconds */
# define CONFIG_SCHED_USRWORKPERIOD (100*1000) /* 100 milliseconds */
# endif
# ifndef CONFIG_SCHED_USRWORKSTACKSIZE
@@ -286,8 +300,9 @@
struct wqueue_s
{
pid_t pid; /* The task ID of the worker thread */
struct dq_queue_s q; /* The queue of pending work */
uint32_t delay; /* Delay between polling cycles (ticks) */
struct dq_queue_s q; /* The queue of pending work */
pid_t pid[1]; /* The task ID of the worker thread(s) */
};
/* Defines the work callback */