/* * Ouroboros - Copyright (C) 2016 - 2021 * * 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; }