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/*
* Ouroboros - Copyright (C) 2016 - 2022
*
* Test of the shm_rbuff
*
* Dimitri Staessens <dimitri@ouroboros.rocks>
* Sander Vrijders <sander@ouroboros.rocks>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., http://www.fsf.org/about/contact/.
*/
#define _POSIX_C_SOURCE 200112L
#include "config.h"
#include <ouroboros/shm_rbuff.h>
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
int shm_rbuff_test(int argc,
char ** argv)
{
struct shm_rbuff * rb;
size_t i;
(void) argc;
(void) argv;
printf("Test: create rbuff...");
rb = shm_rbuff_create(getpid(), 1);
if (rb == NULL)
goto err;
printf("success.\n\n");
printf("Test: write a value...");
if (shm_rbuff_write(rb, 1) < 0)
goto error;
printf("success.\n\n");
printf("Test: check queue length is 1...");
if (shm_rbuff_queued(rb) != 1)
goto error;
printf("success.\n\n");
printf("Test: read a value...");
if (shm_rbuff_read(rb) != 1)
goto error;
printf("success.\n\n");
printf("Test: check queue is empty...");
if (shm_rbuff_read(rb) != -EAGAIN)
goto error;
printf("success.\n\n");
printf("Test: fill the queue...");
for (i = 0; i < SHM_RBUFF_SIZE - 1; ++i) {
if (shm_rbuff_queued(rb) != i)
goto error;
if (shm_rbuff_write(rb, 1) < 0)
goto error;
}
printf("success.\n\n");
printf("Test: check queue is full...");
if (shm_rbuff_queued(rb) != SHM_RBUFF_SIZE - 1)
goto error;
printf("success [%zd entries].\n\n", shm_rbuff_queued(rb));
printf("Test: check queue is full by writing value...");
if (!(shm_rbuff_write(rb, 1) < 0))
goto error;
printf("success [%zd entries].\n\n", shm_rbuff_queued(rb));
/* empty the rbuff */
while (shm_rbuff_read(rb) >= 0)
;
shm_rbuff_destroy(rb);
return 0;
error:
/* empty the rbuff */
while (shm_rbuff_read(rb) >= 0)
;
shm_rbuff_destroy(rb);
err:
printf("failed.\n\n");
return -1;
}
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