====== OSA : OS_Queue_Send_TO ======
<color blue>**OS_Queue_Send_TO (queue, message, timeout)**</color>\\ 
=== ===

{{osa:ref:attr_call_task.png|Allowed only in task}}{{osa:ref:attr_call_ct_sw.png|Switches context}}{{osa:ref:attr_call_to.png|Uses timer}}

Same as ##[[en:osa:ref:allservices:OS_Queue_Send|OS_Queue_Send]]## with exit if timeout expires.

##[[en:osa:ref:appendix:configuration#System constants|OS_ENABLE_QUEUE]]## constant must be defined in ##[[en:osa:ref:appendix:configuration|OSAcfg.h]]##.
<note>
For PIC16, message queues can be allocated only in **bank0** or **bank1**
</note>


=== Call allowed: ===
Only in task


=== Parameters: ===
{| class = "fpl"
|-
|//''queue''//
|Queue of messages descriptor. Variable of ##[[en:osa:ref:description:data_types#OST_QUEUE|OST_QUEUE]]## type.
|-
|//''message''//
|pointer to message body (##[[en:osa:ref:description:data_types#OST_MSG|OST_MSG]]##)
|-
|//''timeout''//
|Time of wait in system ticks - calling ##[[en:osa:ref:allservices:OS_Timer|OS_Timer]]## periods
|}


=== Returns: ===
{| class = "fpl"
|-
|//''timeout''//
|If timeout expired then system service ##[[en:osa:ref:allservices:OS_IsTimeout|OS_IsTimeout]]## will return **true**
|}


=== Example: ===
<code cpp>
OST_QUEUE queue;

void Task (void)
{
    static char Buf[20];
    for (;;) {
        /*...*/
        OS_Queue_Send_TO (queue, buf, 100); // Wait 100 ticks
        if (OS_IsTimeout()) {
            // Message was not sent!
            /*...*/
        }
        /*...*/
    }
}
</code>


=== Old style name ===
<color gray>**OS_SendQMsgTimeout**</color>\\ 








=== See also ===
  * [[en:osa:ref:allservices:OS_Queue_Create|OS_Queue_Create]]

  * [[en:osa:ref:allservices:OS_Queue_Send|OS_Queue_Send]]
  * [[en:osa:ref:allservices:OS_Queue_Send_Now|OS_Queue_Send_Now]]


  * [[en:osa:ref:allservices:OS_Queue_Check|OS_Queue_Check]]
  * [[en:osa:ref:allservices:OS_Queue_IsFull|OS_Queue_IsFull]]

  * [[en:osa:ref:allservices:OS_Queue_Wait|OS_Queue_Wait]]
  * [[en:osa:ref:allservices:OS_Queue_Wait_TO|OS_Queue_Wait_TO]]

----
  * [[en:osa:ref:services:alphabetical|Alphabetical]]
  * [[en:osa:ref:services:brieflist|All services]]
~~UP~~