====== OSA : OS_Ttimer_Check ======
<color blue>**bool OS_Ttimer_Check ()**</color>\\ 
=== ===

{{osa:ref:attr_call_to.png|Service uses system timer}}{{osa:ref:attr_call_task_plus.png|Allowed only in task and functions called by task}}

Check if current task's timer has overflowed.

To use task timers you need to define  ##[[en:osa:ref:appendix:configuration#Timer control|OS_ENABLE_TTIMERS]]## in ##[[en:osa:ref:appendix:configuration|OSAcfg.h]]##. Size of current task's timers is set by ##[[en:osa:ref:appendix:configuration#Data types|OS_TTIMER_SIZE]]## constant

=== Call allowed: ===
Allowed only in task and functions called by task (any depth)

=== Parameters: ===
no

=== Returns: ===
{| class = "fpl"
|-
|//''false''//
| current task's timer is counting
|-
|//''true''//
| current task's timer overflowed or was stopped/paused
|}


=== Example: ===
<code cpp>
void Task (void)
{
    for (;;) {
        /*...*/
        if (OS_Ttimer_Check()) {    // If timer overflowed (or not counting)
            OS_Ttimer_Run(100);     // then re-run current task's timer
        }
        /*...*/
    }
}
</code>


=== See also ===

  * [[en:osa:ref:allservices:OS_Ttimer_Run|OS_Ttimer_Run]]
  * [[en:osa:ref:allservices:OS_Ttimer_Break|OS_Ttimer_Break]]
  * [[en:osa:ref:allservices:OS_Ttimer_Wait|OS_Ttimer_Wait]]
  * [[en:osa:ref:allservices:OS_Ttimer_Delay|OS_Ttimer_Delay]]

  * [[en:osa:ref:allservices:OS_Ttimer_Get|OS_Ttimer_Get]]
  * [[en:osa:ref:allservices:OS_Ttimer_Check|OS_Ttimer_Check]]
  * [[en:osa:ref:allservices:OS_Ttimer_IsRun|OS_Ttimer_IsRun]]

  * [[en:osa:ref:allservices:OS_Ttimer_Pause|OS_Ttimer_Pause]]
  * [[en:osa:ref:allservices:OS_Ttimer_Continue|OS_Ttimer_Continue]]

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