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+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * 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 Intel Corporation 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.
+ *
+ * version: DPDK.L.1.2.3-3
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+
+#include <cmdline_parse.h>
+
+#include <rte_common.h>
+#include <rte_cycles.h>
+#include <rte_interrupts.h>
+#include <rte_common.h>
+#include <rte_atomic.h>
+#include <rte_alarm.h>
+
+#include "test.h"
+
+#define US_PER_MS 1000
+
+#define RTE_TEST_ALARM_TIMEOUT 3000 /* ms */
+#define RTE_TEST_CHECK_PERIOD 1000 /* ms */
+
+static volatile int flag;
+
+static void
+test_alarm_callback(void *cb_arg)
+{
+ flag = 1;
+ printf("Callback setting flag - OK. [cb_arg = %p]\n", cb_arg);
+}
+
+static rte_atomic32_t cb_count;
+
+static void
+test_multi_cb(void *arg)
+{
+ rte_atomic32_inc(&cb_count);
+ printf("In %s - arg = %p\n", __func__, arg);
+}
+
+static volatile int recursive_error = 0;
+
+static void
+test_remove_in_callback(void *arg)
+{
+ printf("In %s - arg = %p\n", __func__, arg);
+ if (rte_eal_alarm_cancel(test_remove_in_callback, arg) ||
+ rte_eal_alarm_cancel(test_remove_in_callback, (void *)-1)) {
+ printf("Error - cancelling callback from within function succeeded!\n");
+ recursive_error = 1;
+ }
+ flag = (int)((uintptr_t)arg);
+}
+
+static volatile int flag_2;
+
+static void
+test_remove_in_callback_2(void *arg)
+{
+ if (rte_eal_alarm_cancel(test_remove_in_callback_2, arg) || rte_eal_alarm_cancel(test_remove_in_callback_2, (void *)-1)) {
+ printf("Error - cancelling callback of test_remove_in_callback_2\n");
+ return;
+ }
+ flag_2 = 1;
+}
+
+static int
+test_multi_alarms(void)
+{
+ int rm_count = 0;
+ cb_count.cnt = 0;
+
+ printf("Expect 6 callbacks in order...\n");
+ /* add two alarms in order */
+ rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)1);
+ rte_eal_alarm_set(2000 * US_PER_MS, test_multi_cb, (void *)2);
+
+ /* now add in reverse order */
+ rte_eal_alarm_set(6000 * US_PER_MS, test_multi_cb, (void *)6);
+ rte_eal_alarm_set(5000 * US_PER_MS, test_multi_cb, (void *)5);
+ rte_eal_alarm_set(4000 * US_PER_MS, test_multi_cb, (void *)4);
+ rte_eal_alarm_set(3000 * US_PER_MS, test_multi_cb, (void *)3);
+
+ /* wait for expiry */
+ rte_delay_ms(6500);
+ if (cb_count.cnt != 6) {
+ printf("Missing callbacks\n");
+ /* remove any callbacks that might remain */
+ rte_eal_alarm_cancel(test_multi_cb, (void *)-1);
+ return -1;
+ }
+
+ cb_count.cnt = 0;
+ printf("Expect only callbacks with args 1 and 3...\n");
+ /* Add 3 flags, then delete one */
+ rte_eal_alarm_set(3000 * US_PER_MS, test_multi_cb, (void *)3);
+ rte_eal_alarm_set(2000 * US_PER_MS, test_multi_cb, (void *)2);
+ rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)1);
+ rm_count = rte_eal_alarm_cancel(test_multi_cb, (void *)2);
+
+ rte_delay_ms(3500);
+ if (cb_count.cnt != 2 || rm_count != 1) {
+ printf("Error: invalid flags count or alarm removal failure"
+ " - flags value = %d, expected = %d\n", cb_count.cnt, 2);
+ /* remove any callbacks that might remain */
+ rte_eal_alarm_cancel(test_multi_cb, (void *)-1);
+ return -1;
+ }
+
+ printf("Testing adding and then removing multiple alarms\n");
+ /* finally test that no callbacks are called if we delete them all*/
+ rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)1);
+ rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)2);
+ rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)3);
+ rm_count = rte_eal_alarm_cancel(test_alarm_callback, (void *)-1);
+ if (rm_count != 0) {
+ printf("Error removing non-existant alarm succeeded\n");
+ rte_eal_alarm_cancel(test_multi_cb, (void *) -1);
+ return -1;
+ }
+ rm_count = rte_eal_alarm_cancel(test_multi_cb, (void *) -1);
+ if (rm_count != 3) {
+ printf("Error removing all pending alarm callbacks\n");
+ return -1;
+ }
+
+ /* Test that we cannot cancel an alarm from within the callback itself
+ * Also test that we can cancel head-of-line callbacks ok.*/
+ flag = 0;
+ recursive_error = 0;
+ rte_eal_alarm_set(1000 * US_PER_MS, test_remove_in_callback, (void *)1);
+ rte_eal_alarm_set(2000 * US_PER_MS, test_remove_in_callback, (void *)2);
+ rm_count = rte_eal_alarm_cancel(test_remove_in_callback, (void *)1);
+ if (rm_count != 1) {
+ printf("Error cancelling head-of-list callback\n");
+ return -1;
+ }
+ rte_delay_ms(1500);
+ if (flag != 0) {
+ printf("Error, cancelling head-of-list leads to premature callback\n");
+ return -1;
+ }
+ rte_delay_ms(1000);
+ if (flag != 2) {
+ printf("Error - expected callback not called\n");
+ rte_eal_alarm_cancel(test_remove_in_callback, (void *)-1);
+ return -1;
+ }
+ if (recursive_error == 1)
+ return -1;
+
+ /* Check if it can cancel all for the same callback */
+ printf("Testing canceling all for the same callback\n");
+ flag_2 = 0;
+ rte_eal_alarm_set(1000 * US_PER_MS, test_remove_in_callback, (void *)1);
+ rte_eal_alarm_set(2000 * US_PER_MS, test_remove_in_callback_2, (void *)2);
+ rte_eal_alarm_set(3000 * US_PER_MS, test_remove_in_callback_2, (void *)3);
+ rte_eal_alarm_set(4000 * US_PER_MS, test_remove_in_callback, (void *)4);
+ rm_count = rte_eal_alarm_cancel(test_remove_in_callback_2, (void *)-1);
+ if (rm_count != 2) {
+ printf("Error, cannot cancel all for the same callback\n");
+ return -1;
+ }
+ rm_count = rte_eal_alarm_cancel(test_remove_in_callback, (void *)-1);
+ if (rm_count != 2) {
+ printf("Error, cannot cancel all for the same callback\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+int
+test_alarm(void)
+{
+ int count = 0;
+
+ /* check if the callback will be called */
+ printf("check if the callback will be called\n");
+ flag = 0;
+ if (rte_eal_alarm_set(RTE_TEST_ALARM_TIMEOUT * US_PER_MS,
+ test_alarm_callback, NULL) < 0) {
+ printf("fail to set alarm callback\n");
+ return -1;
+ }
+ while (flag == 0 && count ++ < 6)
+ rte_delay_ms(RTE_TEST_CHECK_PERIOD);
+
+ if (flag == 0){
+ printf("Callback not called\n");
+ return -1;
+ }
+
+ /* check if it will fail to set alarm with wrong us value */
+ printf("check if it will fail to set alarm with wrong ms values\n");
+ if (rte_eal_alarm_set(0, test_alarm_callback,
+ NULL) >= 0) {
+ printf("should not be successful with 0 us value\n");
+ return -1;
+ }
+ if (rte_eal_alarm_set(UINT64_MAX - 1, test_alarm_callback,
+ NULL) >= 0) {
+ printf("should not be successful with (UINT64_MAX-1) us value\n");
+ return -1;
+ }
+
+ /* check if it will fail to set alarm with null callback parameter */
+ printf("check if it will fail to set alarm with null callback parameter\n");
+ if (rte_eal_alarm_set(RTE_TEST_ALARM_TIMEOUT, NULL, NULL) >= 0) {
+ printf("should not be successful to set alarm with null callback parameter\n");
+ return -1;
+ }
+
+ /* check if it will fail to remove alarm with null callback parameter */
+ printf("check if it will fail to remove alarm with null callback parameter\n");
+ if (rte_eal_alarm_cancel(NULL, NULL) == 0) {
+ printf("should not be successful to remove alarm with null callback parameter");
+ return -1;
+ }
+
+ if (test_multi_alarms() != 0)
+ return -1;
+
+ return 0;
+}
+