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Add support for multiple low-priority worker threads

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This commit is contained in:
Gregory Nutt
2014-10-10 16:24:50 -06:00
parent 438e3e1a90
commit 4a4b3ac537
14 changed files with 204 additions and 77 deletions
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libc/wqueue/wqueue.h
+10 -1
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@@ -57,6 +57,15 @@
* Public Type Definitions
****************************************************************************/
/* This structure defines the state of one user-modework queue. */
struct usr_wqueue_s
{
uint32_t delay; /* Delay between polling cycles (ticks) */
struct dq_queue_s q; /* The queue of pending work */
pid_t pid; /* The task ID of the worker thread(s) */
};
/****************************************************************************
* Public Data
****************************************************************************/
@@ -64,7 +73,7 @@
#if defined(CONFIG_SCHED_USRWORK) && !defined(__KERNEL__)
/* The state of the user mode work queue */
extern struct wqueue_s g_usrwork;
extern struct usr_wqueue_s g_usrwork;
/* This semaphore/mutex supports exclusive access to the user-mode work queue */