esp_event_isr_post_to() function

Special variant of esp_event_post_to for posting events from interrupt handlers

Syntax

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Summary

Declaration

Definition

from esp_event.h:450

esp_err_t esp_event_isr_post_to(esp_event_loop_handle_t event_loop, esp_event_base_t event_base, int32_t event_id, const void *event_data, size_t event_data_size, BaseType_t *task_unblocked);

Implemented in esp_event.c:987

Arguments

Argument

Declared as

Description

event_loop

esp_event_loop_handle_t

the event loop to post to, must not be NULL

event_base

esp_event_base_t

the event base that identifies the event

event_id

int32_t

the event ID that identifies the event

event_data

const void *

the data, specific to the event occurrence, that gets passed to the handler

event_data_size

size_t

the size of the event data

task_unblocked

BaseType_t *

an optional parameter (can be NULL) which indicates that an event task with higher priority than currently running task has been unblocked by the posted event; a context switch should be requested before the interrupt is existed.

Return value

- ESP_OK: Success - ESP_FAIL: Event queue for the loop full - ESP_ERR_INVALID_ARG: Invalid combination of event base and event ID, data size of more than 4 bytes - Others: Fail

Notes

this function is only available when CONFIG_ESP_EVENT_POST_FROM_ISR is enabled when this function is called from an interrupt handler placed in IRAM, this function should be placed in IRAM as well by enabling CONFIG_ESP_EVENT_POST_FROM_IRAM_ISR

Examples

References

from examples

esp_event_isr_post_to() function

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Arguments

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Notes

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