dm_mqtt_publish Function

public function dm_mqtt_publish(url, message, timeout, error_message, error_curl) result(rc)

Publishes MQTT message message on topic with address url by calling libcurl.

The function returns the following error codes:

  • E_COMPILER if C pointer could not be nullified (compiler bug).
  • E_INVALID if URL is invalid.
  • E_MQTT if publishing the message failed.

Arguments

Type IntentOptional Attributes Name
character(len=*), intent(in) :: url

URL to MQTT server/topic.
character(len=*), intent(in), target :: message

Message to publish.
integer, intent(in), optional :: timeout

Connection timeout.
character(len=:), intent(out), optional, allocatable :: error_message

cURL error message.
integer, intent(out), optional :: error_curl

cURL error code.

Return Value integer


Calls

proc~~dm_mqtt_publish~~CallsGraph proc~dm_mqtt_publish dm_mqtt_publish curl_easy_cleanup curl_easy_cleanup proc~dm_mqtt_publish->curl_easy_cleanup curl_easy_init curl_easy_init proc~dm_mqtt_publish->curl_easy_init curl_easy_perform curl_easy_perform proc~dm_mqtt_publish->curl_easy_perform curl_easy_setopt curl_easy_setopt proc~dm_mqtt_publish->curl_easy_setopt curl_easy_strerror curl_easy_strerror proc~dm_mqtt_publish->curl_easy_strerror proc~dm_is_error dm_is_error proc~dm_mqtt_publish->proc~dm_is_error