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OSA : OS_Squeue_IsEmpty

bool OS_Squeue_IsEmpty (squeue)
bool OS_Squeue_IsEmpty_I (squeue)

Check if queue of simple messages is empty.

OS_ENABLE_SQUEUE constant must be defined in OSAcfg.h.

For PIC16, message queues can be allocated only in bank0 or bank1

Call allowed:



squeue Queue of simple messages descriptor. Variable of OST_SQUEUE type.


false there are some messages in the squeue
true queue is empty


OST_SQUEUE squeue;
void Task (void)
    for (;;) {
        if (OS_Squeue_IsEmpty (squeue)) {
            /* There is no messages in squeue */
        } else {
            /* The squeue contains some messages */

Old style name


See also

en/osa/ref/allservices/os_squeue_isempty.txt · Last modified: 07.10.2010 13:57 (external edit)
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