1
2 #include <stdlib.h>
3 #include <stdint.h>
4 #include <stdio.h>
5
6 #include "ringbuffer.c"
7 #include "ringbuffer-test-utils.c"
8
test_contained_offset_read(void)9 void test_contained_offset_read(void)
10 {
11 uint8_t *out_buf;
12 uint8_t in_buf[] = { 'a', 'b', 'c' };
13 struct ringbuffer_consumer *rbc;
14 struct ringbuffer *rb;
15 size_t len;
16 size_t i;
17 int rc;
18
19 rb = ringbuffer_init(10);
20 rbc = ringbuffer_consumer_register(rb, ringbuffer_poll_nop, NULL);
21
22 rc = ringbuffer_queue(rb, in_buf, sizeof(in_buf));
23 assert(!rc);
24
25 /* test all possible offsets */
26 for (i = 0; i <= sizeof(in_buf); i++) {
27 len = ringbuffer_dequeue_peek(rbc, i, &out_buf);
28 assert(len == sizeof(in_buf) - i);
29 if (len) {
30 assert(!memcmp(in_buf + i, out_buf, len));
31 }
32 }
33
34 ringbuffer_fini(rb);
35 }
36
main(void)37 int main(void)
38 {
39 test_contained_offset_read();
40 return EXIT_SUCCESS;
41 }
42