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nanokernel: Add routines for waking a fiber

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Adds the following routines for waking a fiber that was previously
put to sleep using fiber_sleep().
    isr_fiber_wakeup()
    fiber_fiber_wakeup()
    task_fiber_wakeup()

Change-Id: I7d78ee6997163d71b92f388a7b4c484f2e97862b
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
This commit is contained in:
Peter Mitsis 2016-02-19 13:26:42 -05:00 • committed by Benjamin Walsh
commit b4313cef6f
2 changed files with 59 additions and 0 deletions
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36
include/nanokernel.h
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@ -244,6 +244,42 @@ extern void fiber_abort(void);
*/ */
extern void fiber_sleep(int32_t timeout_in_ticks); extern void fiber_sleep(int32_t timeout_in_ticks);
/**
* @brief Wake the specified fiber from sleep
*
* This routine wakes the fiber specified by @a fiber from its sleep.
* It may only be called from an ISR.
*
* @param fiber Identifies fiber to wake
*
* @return N/A
*/
extern void isr_fiber_wakeup(nano_thread_id_t fiber);
/**
* @brief Wake the specified fiber from sleep
*
* This routine wakes the fiber specified by @a fiber from its sleep.
* It may only be called from a fiber.
*
* @param fiber Identifies fiber to wake
*
* @return N/A
*/
extern void fiber_fiber_wakeup(nano_thread_id_t fiber);
/**
* @brief Wake the specified fiber from sleep
*
* This routine wakes the fiber specified by @a fiber from its sleep.
* It may only be called from a task.
*
* @param fiber Identifies fiber to wake
*
* @return N/A
*/
extern void task_fiber_wakeup(nano_thread_id_t fiber);
#ifndef CONFIG_MICROKERNEL #ifndef CONFIG_MICROKERNEL
/** /**
* @brief Put the task to sleep. * @brief Put the task to sleep.

23
kernel/nanokernel/nano_sleep.c
View file

@ -41,6 +41,29 @@ void fiber_sleep(int32_t timeout_in_ticks)
_Swap(key); _Swap(key);
} }
FUNC_ALIAS(_fiber_wakeup, isr_fiber_wakeup, void);
FUNC_ALIAS(_fiber_wakeup, fiber_fiber_wakeup, void);
void _fiber_wakeup(nano_thread_id_t fiber)
{
int key;
key = irq_lock();
_nano_timeout_abort(fiber);
_nano_fiber_ready(fiber);
irq_unlock(key);
}
void task_fiber_wakeup(nano_thread_id_t fiber)
{
int key;
key = irq_lock();
_nano_timeout_abort(fiber);
_nano_fiber_ready(fiber);
_Swap(key);
}
#ifndef CONFIG_MICROKERNEL #ifndef CONFIG_MICROKERNEL
void task_sleep(int32_t timeout_in_ticks) void task_sleep(int32_t timeout_in_ticks)
{ {