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SourceVuESP-IDF Framework and ExamplesESP-IDFhttpd_ws_send_data()

httpd_ws_send_data() function

Sends data to to specified websocket synchronously

Syntax

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Summary

Declaration

Definition

from esp_http_server.h:1790

esp_err_t httpd_ws_send_data(httpd_handle_t handle, int socket, httpd_ws_frame_t *frame);

Implemented in httpd_ws.c:545

Arguments

Argument

Description

handle

Server instance data

socket

Socket descriptor

frame

Websocket frame

Return value

- ESP_OK : On successful - ESP_FAIL : When socket errors occurs - ESP_ERR_NO_MEM : Unable to allocate memory

References

Code

Location

esp_err_t httpd_ws_send_data(httpd_handle_t handle, int socket, httpd_ws_frame_t *frame)

httpd_ws.c:545

esp_err_t httpd_ws_send_data(httpd_handle_t handle, int socket, httpd_ws_frame_t *frame);

esp_http_server.h:1790

Call Tree

httpd_ws_send_data() calls 6 functions:

httpd_ws_send_data()

free()

calloc()

xEventGroupCreate()

xEventGroupWaitBits()

vEventGroupDelete()

httpd_queue_work()

Data Use

httpd_ws_send_data() reads 1 variable and writes 4 variables:

httpd_ws_send_cb()

httpd_ws_send_data()

async_transfer_t::handle

async_transfer_t::socket

async_transfer_t::blocking

async_transfer_t::transfer_done

Class Tree

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Implementations

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Instances

Lifecycle

httpd_ws_send_data() allocates 1 types and frees 1 types:

async_transfer_t

httpd_ws_send_data()

async_transfer_t