Command disabled: backlink
OSA : OS_Csem_Wait_TO
OS_Csem_Wait_TO (csem, timeout)
Wait for counting semaphore. If timeout expires before this event occurs, then stop waiting with Timeout flag set (see OS_IsTimeout)
OS_ENABLE_CSEM constant must be defined in OSAcfg.h. Size of counting semaphores is defined by OS_CSEM_SIZE constant
For PIC16, counting semaphores can only be allocated in bank0 or bank1
Call allowed:
Only in task
Parameters:
csem |
Counting semaphore. Variable of OST_CSEM type |
timeout |
Time of waiting in system ticks - calling OS_Timer periods |
Returns:
timeout |
If timeout expired then system service OS_IsTimeout will return true |
Example:
OST_CSEM csem; void Task (void) { for (;;) { /*...*/ OS_Csem_Wait_TO (csem, 300); // wait 300 ticks for csem if (!OS_IsTimeout()) { // /*...*/ } /*...*/ } }
Old style name
OS_WaitCSemTimeout
