Simple example of exercising ngx-queue.h

binding.gyp

// See node-gyp for documentation on using this file to build

{
  "targets": [
    {
      "target_name": "helloqueue",
      "sources": [
        "helloqueue.c"
      ]
    }
  ]
}

hello-ngx-queue.c

#include <stdio.h>
#include <stddef.h>
#include <ngx-queue.h>

struct queue_element_s {
	ngx_queue_t queue;
	int data;
};

typedef struct queue_element_s queue_element_t;

int main() {

	ngx_queue_t root;
	ngx_queue_init(&root);

	printf("Empty: %d\n", ngx_queue_empty(&root));

	queue_element_t one;
	one.data = 1;
	ngx_queue_init(&one.queue);
	ngx_queue_insert_tail(&root, &one.queue);

	printf("Inserted Tail\n");
	printf("Empty: %d\n", ngx_queue_empty(&root));

	queue_element_t two;
	two.data = 2;
	ngx_queue_init(&two.queue);
	ngx_queue_insert_tail(&root, &two.queue);

	ngx_queue_t* q = ngx_queue_head(&root);
	queue_element_t* pElement = ngx_queue_data(q, queue_element_t, queue);

	printf("Head %d\n", pElement->data);

	ngx_queue_remove(q);

	printf("Removed\n");
	printf("Empty: %d\n", ngx_queue_empty(&root));

	q = ngx_queue_head(&root);
	pElement = ngx_queue_data(q, queue_element_t, queue);

	printf("Head %d\n", pElement->data);

	ngx_queue_remove(q);
	printf("Removed\n");
	printf("Empty: %d\n", ngx_queue_empty(&root));

	return 0;
}