diff options
Diffstat (limited to 'src/lib/tests/shm_du_map_test.c')
| -rw-r--r-- | src/lib/tests/shm_du_map_test.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/src/lib/tests/shm_du_map_test.c b/src/lib/tests/shm_du_map_test.c new file mode 100644 index 00000000..d9b44732 --- /dev/null +++ b/src/lib/tests/shm_du_map_test.c @@ -0,0 +1,184 @@ +/* + * Ouroboros - Copyright (C) 2016 + * + * Test of the Shared Memory Map + * + * Dimitri Staessens <dimitri.staessens@intec.ugent.be> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <ouroboros/shm_du_map.h> +#include <sys/types.h> +#include <stdlib.h> +#include <time.h> +#include <sys/mman.h> +#include <pthread.h> + +#define SIZE_OF_DU_BUFF 24 +#define TEST_BUFF_SIZE (SHM_DU_BUFF_BLOCK_SIZE - SIZE_OF_DU_BUFF) + +#define MAX(a,b) (a > b ? a : b) +#define MIN(a,b) (a < b ? a : b) + +int sync; + +void * produce() +{ + struct shm_du_map * dum; + long test_buf_size = 0; + uint8_t * test_values; + int headspace; + int tailspace; + long i; + long bytes_written = 0; + struct timespec starttime; + struct timespec stoptime; + double elapsed; + + dum = shm_du_map_open(); + if (dum == NULL) { + LOG_ERR("Could not open shm."); + return (void *)-1; + } + + srand(time(NULL)); + + test_values = malloc (sizeof *test_values * TEST_BUFF_SIZE); + for (i = 0; i < TEST_BUFF_SIZE; i++) + test_values[i] = 170; + + clock_gettime(CLOCK_MONOTONIC, &starttime); + for (i = 1; i < SHM_BLOCKS_IN_MAP; i++) { + struct shm_du_buff * sdb; + size_t len; + + test_buf_size = TEST_BUFF_SIZE; + + headspace = 32; + tailspace = 8; + + len = test_buf_size - (headspace + tailspace); + + sdb = shm_create_du_buff(dum, + test_buf_size, + headspace, + test_values, + len); + + if (sdb != NULL) { + bytes_written += len; + } + else { + sync = -2; + break; + } + } + + clock_gettime(CLOCK_MONOTONIC, &stoptime); + elapsed =(stoptime.tv_sec + stoptime.tv_nsec / 1000000000.0) - + (starttime.tv_sec + starttime.tv_nsec / 1000000000.0); + LOG_INFO("%ld bytes written in %.1lf ms = %lf Gb/s", + bytes_written, + elapsed * 1000.0, + bytes_written * 8 / (elapsed * 1000000000)); + + free(test_values); + + sync = -1; + + return 0; +} + +void * consume() +{ + struct shm_du_map * dum; + + struct timespec ts; + + ts.tv_sec = 0; + ts.tv_nsec = 1000000; + + dum = shm_du_map_open(); + + if (dum == NULL) { + LOG_ERR("Could not open shm."); + return (void *)-1; + } + + while (!sync) { + while (!shm_release_du_buff(dum)); + nanosleep(&ts, NULL); + } + + return 0; +} + +int shm_du_map_test(int argc, char ** argv) +{ + struct shm_du_map * dum; + int res1; + pthread_t producer; + pthread_t consumer; + + /* test 1 */ + + LOG_INFO("starting create/close test."); + + dum = shm_du_map_create(); + + if (dum == NULL) { + LOG_ERR("Could not open shm (dum)."); + return -1; + } + + shm_du_map_close(dum); + + LOG_INFO("done."); + + /* test 2 */ + + LOG_INFO("starting sequential test."); + + dum = shm_du_map_create(); + + res1 = (int) pthread_create(&producer, NULL, produce, NULL); + pthread_join(producer, NULL); + + pthread_create(&consumer, NULL, consume, NULL); + pthread_join(consumer, NULL); + + shm_du_map_close(dum); + + LOG_INFO("done."); + + /* test 3 */ + + LOG_INFO("starting concurrency test."); + + dum = shm_du_map_create(); + + res1 = (int) pthread_create(&producer, NULL, produce, NULL); + pthread_create(&consumer, NULL, consume, NULL); + + pthread_join(producer, NULL); + pthread_join(consumer, NULL); + + shm_du_map_close(dum); + + LOG_INFO("done."); + + return res1; +} |