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kernel: events: add function to clear events

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Shortcut making it easier to clear events than with k_event_set_masked.

Signed-off-by: Martin Jäger <martin@libre.solar>
This commit is contained in:
Martin Jäger 2022-09-30 12:03:09 +02:00 committed by Anas Nashif
parent 58ece9d503
commit caba2ad616
2 changed files with 24 additions and 0 deletions
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10
include/zephyr/kernel.h
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@ -2142,6 +2142,16 @@ __syscall void k_event_set(struct k_event *event, uint32_t events);
__syscall void k_event_set_masked(struct k_event *event, uint32_t events,
uint32_t events_mask);
/**
* @brief Clear the events in an event object
*
* This routine clears (resets) the specified events stored in an event object.
*
* @param event Address of the event object
* @param events Set of events to clear in @a event
*/
__syscall void k_event_clear(struct k_event *event, uint32_t events);
/**
* @brief Wait for any of the specified events
*

14
kernel/events.c
View file

@ -188,6 +188,20 @@ void z_vrfy_k_event_set_masked(struct k_event *event, uint32_t events,
#include <syscalls/k_event_set_masked_mrsh.c>
#endif
void z_impl_k_event_clear(struct k_event *event, uint32_t events)
{
k_event_post_internal(event, 0, events);
}
#ifdef CONFIG_USERSPACE
void z_vrfy_k_event_clear(struct k_event *event, uint32_t events)
{
Z_OOPS(Z_SYSCALL_OBJ(event, K_OBJ_EVENT));
z_impl_k_event_clear(event, events);
}
#include <syscalls/k_event_clear_mrsh.c>
#endif
static uint32_t k_event_wait_internal(struct k_event *event, uint32_t events,
unsigned int options, k_timeout_t timeout)
{