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authorSander Vrijders <sander.vrijders@intec.ugent.be>2016-03-25 10:33:09 +0100
committerSander Vrijders <sander.vrijders@intec.ugent.be>2016-03-25 10:33:09 +0100
commitdc8e71461eb6c1c72dbfd38261a1616c053e7bbd (patch)
tree3480b39405a9ce935a5d110ebfacc121f9440b37 /src/lib/tests
parentc32ccc39cfc793729890204c8d810eb7608f4474 (diff)
parent0dd4526f5c75f23aba886bee2d9850a70aa67ca8 (diff)
downloadouroboros-dc8e71461eb6c1c72dbfd38261a1616c053e7bbd.tar.gz
ouroboros-dc8e71461eb6c1c72dbfd38261a1616c053e7bbd.zip
Merged in dstaesse/ouroboros/be-shm (pull request #37)
lib: shared memory map
Diffstat (limited to 'src/lib/tests')
-rw-r--r--src/lib/tests/CMakeLists.txt1
-rw-r--r--src/lib/tests/shm_du_map_test.c184
2 files changed, 185 insertions, 0 deletions
diff --git a/src/lib/tests/CMakeLists.txt b/src/lib/tests/CMakeLists.txt
index 99df7232..80834df8 100644
--- a/src/lib/tests/CMakeLists.txt
+++ b/src/lib/tests/CMakeLists.txt
@@ -5,6 +5,7 @@ create_test_sourcelist(${src_folder}_tests test_suite.c
# Add new tests here
bitmap_test.c
du_buff_test.c
+ shm_du_map_test.c
)
add_executable(${src_folder}_test EXCLUDE_FROM_ALL ${${src_folder}_tests})
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;
+}