kupl_queue_wait

Synchronize a KUPL queue and wait until all items or kernels in the queue are executed.

Interface Definition

int kupl_queue_wait(kupl_queue_h queue);

Parameters

**Table 1** Parameter definition
Parameter	Type	Description	Input/Output
queue	kupl_queue_h	Queue to be synchronized	Input

Return Value

Success: KUPL_OK

Failure: KUPL_ERROR

Examples

#include <stdio.h> 
#include <assert.h>
#include "kupl.h" 

static inline void kernel_func(void *args)
{
    printf("kernel exec.\n");
}

int main() 
{ 
    kupl_queue_h queue = kupl_queue_create();
    kupl_queue_item_desc_t desc = {
        .field_mask = KUPL_QUEUE_ITEM_DESC_FIELD_NAME,
        .func = kernel_func,
        .args = NULL,
        .name = "kernel_name"
    };
    kupl_queue_submit(queue, &desc); 
    int ret = kupl_queue_wait(queue);
    assert(ret == KUPL_OK);
    kupl_queue_destroy(queue);
    return 0;         
}

The execution result is as follows:

kernel exec.

The preceding example demonstrates the process of submitting items to a queue and waiting until all items in the queue are executed. The kupl_queue_wait function continues execution only after all items in the queue are executed.

Parent topic: Multi-queue Multi-stream Programming Functions