timer-list: Add test

Signed-off-by: Jan Friesse <jfriesse@redhat.com>

qdevices/Makefile.am

@@ -161,11 +161,11 @@ corosync-qdevice-net-certutil: corosync-qdevice-net-certutil.sh
 
 TESTS				= qnetd-cluster-list.test dynar.test dynar-simple-lex.test \
                                   dynar-getopt-lex.test process-list.test utils.test \
-                                  log.test pr-poll-loop.test
+                                  log.test pr-poll-loop.test timer-list.test
 
 check_PROGRAMS			= qnetd-cluster-list.test dynar.test dynar-simple-lex.test \
                                   dynar-getopt-lex.test process-list.test utils.test \
-                                  log.test pr-poll-loop.test
+                                  log.test pr-poll-loop.test timer-list.test
 
 qnetd_cluster_list_test_SOURCES	= test-qnetd-cluster-list.c qnetd-cluster-list.c qnetd-cluster-list.h \
                                   qnetd-cluster.c qnetd-cluster.h \
@@ -190,6 +190,10 @@ pr_poll_loop_test_SOURCES	= test-pr-poll-loop.c pr-poll-loop.c pr-poll-loop.h \
 pr_poll_loop_test_CFLAGS	= $(nss_CFLAGS)
 pr_poll_loop_test_LDADD		= $(nss_LIBS)
 
+timer_list_test_SOURCES		= test-timer-list.c timer-list.c timer-list.h
+timer_list_test_CFLAGS		= $(nss_CFLAGS)
+timer_list_test_LDADD		= $(nss_LIBS)
+
 endif
 
 clean-local:

qdevices/test-timer-list.c

@@ -0,0 +1,186 @@
+/*
+ * Copyright (c) 2020 Red Hat, Inc.
+ *
+ * All rights reserved.
+ *
+ * Author: Jan Friesse (jfriesse@redhat.com)
+ *
+ * This software licensed under BSD license, the text of which follows:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ *   this list of conditions and the following disclaimer in the documentation
+ *   and/or other materials provided with the distribution.
+ * - Neither the name of the Red Hat, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <assert.h>
+#include <string.h>
+#include <errno.h>
+#include <stdint.h>
+#include <poll.h>
+
+#include "timer-list.h"
+
+#define SHORT_TIMEOUT		100
+#define LONG_TIMEOUT		(60 * 1000)
+
+#define SPEED_TEST_NO_ITEMS	1000
+
+static int timer_list_fn1_called = 0;
+
+/*
+ * Reimplementation of timer_list_entry_time_to_expire
+ */
+static uint8_t
+time_to_expire(uint8_t expire_time, uint8_t current_time)
+{
+	uint8_t diff, half_interval;
+
+	diff = expire_time - current_time;
+	half_interval = ~0;
+	half_interval /= 2;
+
+	if (diff > half_interval) {
+		return (0);
+	}
+
+	return (diff);
+}
+
+static void
+check_time_to_expire(void)
+{
+	unsigned int current_time, delta, expire_time, res;
+
+	for (current_time = 0; current_time <= 255 * 2; current_time++) {
+		for (delta = 0; delta < 255; delta++) {
+			expire_time = current_time + delta;
+
+			res = time_to_expire((uint8_t)expire_time, (uint8_t)current_time);
+
+			if (delta < 128) {
+				assert(res == delta);
+			} else {
+				assert(res == 0);
+			}
+		}
+	}
+}
+
+static int
+timer_list_fn1(void *data1, void *data2)
+{
+
+	timer_list_fn1_called++;
+	assert(data1 == &timer_list_fn1_called);
+	assert(data2 == timer_list_fn1);
+
+	return (0);
+}
+
+static void
+check_timer_list_basics(void)
+{
+	struct timer_list tlist;
+	struct timer_list_entry *tlist_entry;
+	struct timer_list_entry *tlist_speed_entry[SPEED_TEST_NO_ITEMS];
+	int i;
+
+	timer_list_init(&tlist);
+
+	assert(timer_list_add(&tlist, 0, timer_list_fn1, NULL, NULL) == NULL);
+	assert(timer_list_add(&tlist, TIMER_LIST_MAX_INTERVAL + 1, timer_list_fn1, NULL, NULL) == NULL);
+	assert(timer_list_add(&tlist, 1, NULL, NULL, NULL) == NULL);
+
+	/*
+	 * callback is called
+	 */
+	timer_list_fn1_called = 0;
+	tlist_entry = timer_list_add(&tlist, SHORT_TIMEOUT / 2, timer_list_fn1, &timer_list_fn1_called, timer_list_fn1);
+	assert(tlist_entry != NULL);
+	poll(NULL, 0, SHORT_TIMEOUT);
+	assert(timer_list_time_to_expire(&tlist) == 0);
+	assert(timer_list_time_to_expire_ms(&tlist) == 0);
+	timer_list_expire(&tlist);
+	assert(timer_list_fn1_called == 1);
+
+	assert(timer_list_time_to_expire(&tlist) == PR_INTERVAL_NO_TIMEOUT);
+	assert(timer_list_time_to_expire_ms(&tlist) == ~((uint32_t)0));
+	timer_list_expire(&tlist);
+	assert(timer_list_fn1_called == 1);
+
+	/*
+	 * Callback is not called
+	 */
+	timer_list_fn1_called = 0;
+	tlist_entry = timer_list_add(&tlist, LONG_TIMEOUT, timer_list_fn1, &timer_list_fn1_called, timer_list_fn1);
+	assert(tlist_entry != NULL);
+	poll(NULL, 0, SHORT_TIMEOUT);
+	assert(timer_list_time_to_expire(&tlist) > 0);
+	assert(timer_list_time_to_expire_ms(&tlist) > 0);
+	timer_list_expire(&tlist);
+	assert(timer_list_fn1_called == 0);
+
+	/*
+	 * Delete entry
+	 */
+	timer_list_delete(&tlist, tlist_entry);
+	assert(timer_list_time_to_expire(&tlist) == PR_INTERVAL_NO_TIMEOUT);
+	assert(timer_list_time_to_expire_ms(&tlist) == ~((uint32_t)0));
+
+	/*
+	 * Test speed and more entries
+	 */
+	timer_list_fn1_called = 0;
+
+	for (i = 0; i < SPEED_TEST_NO_ITEMS; i++) {
+		tlist_speed_entry[i] = timer_list_add(&tlist, SHORT_TIMEOUT / 2,
+		    timer_list_fn1, &timer_list_fn1_called, timer_list_fn1);
+		assert(tlist_speed_entry[i] != NULL);
+	}
+
+	for (i = 0; i < SPEED_TEST_NO_ITEMS; i++) {
+		timer_list_reschedule(&tlist, tlist_speed_entry[i]);
+	}
+
+	poll(NULL, 0, SHORT_TIMEOUT);
+	timer_list_expire(&tlist);
+	assert(timer_list_fn1_called == SPEED_TEST_NO_ITEMS);
+
+	timer_list_free(&tlist);
+}
+
+int
+main(void)
+{
+
+	PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
+
+	check_time_to_expire();
+
+	check_timer_list_basics();
+
+	assert(PR_Cleanup() == PR_SUCCESS);
+
+	return (0);
+}