259 lines
8.2 KiB
C
259 lines
8.2 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* version: DPDK.L.1.2.3-3
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <cmdline_parse.h>
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#include <rte_common.h>
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#include <rte_cycles.h>
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#include <rte_interrupts.h>
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#include <rte_common.h>
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#include <rte_atomic.h>
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#include <rte_alarm.h>
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#include "test.h"
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#define US_PER_MS 1000
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#define RTE_TEST_ALARM_TIMEOUT 3000 /* ms */
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#define RTE_TEST_CHECK_PERIOD 1000 /* ms */
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static volatile int flag;
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static void
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test_alarm_callback(void *cb_arg)
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{
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flag = 1;
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printf("Callback setting flag - OK. [cb_arg = %p]\n", cb_arg);
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}
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static rte_atomic32_t cb_count;
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static void
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test_multi_cb(void *arg)
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{
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rte_atomic32_inc(&cb_count);
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printf("In %s - arg = %p\n", __func__, arg);
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}
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static volatile int recursive_error = 0;
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static void
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test_remove_in_callback(void *arg)
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{
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printf("In %s - arg = %p\n", __func__, arg);
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if (rte_eal_alarm_cancel(test_remove_in_callback, arg) ||
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rte_eal_alarm_cancel(test_remove_in_callback, (void *)-1)) {
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printf("Error - cancelling callback from within function succeeded!\n");
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recursive_error = 1;
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}
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flag = (int)((uintptr_t)arg);
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}
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static volatile int flag_2;
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static void
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test_remove_in_callback_2(void *arg)
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{
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if (rte_eal_alarm_cancel(test_remove_in_callback_2, arg) || rte_eal_alarm_cancel(test_remove_in_callback_2, (void *)-1)) {
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printf("Error - cancelling callback of test_remove_in_callback_2\n");
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return;
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}
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flag_2 = 1;
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}
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static int
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test_multi_alarms(void)
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{
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int rm_count = 0;
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cb_count.cnt = 0;
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printf("Expect 6 callbacks in order...\n");
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/* add two alarms in order */
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rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)1);
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rte_eal_alarm_set(2000 * US_PER_MS, test_multi_cb, (void *)2);
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/* now add in reverse order */
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rte_eal_alarm_set(6000 * US_PER_MS, test_multi_cb, (void *)6);
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rte_eal_alarm_set(5000 * US_PER_MS, test_multi_cb, (void *)5);
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rte_eal_alarm_set(4000 * US_PER_MS, test_multi_cb, (void *)4);
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rte_eal_alarm_set(3000 * US_PER_MS, test_multi_cb, (void *)3);
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/* wait for expiry */
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rte_delay_ms(6500);
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if (cb_count.cnt != 6) {
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printf("Missing callbacks\n");
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/* remove any callbacks that might remain */
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rte_eal_alarm_cancel(test_multi_cb, (void *)-1);
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return -1;
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}
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cb_count.cnt = 0;
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printf("Expect only callbacks with args 1 and 3...\n");
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/* Add 3 flags, then delete one */
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rte_eal_alarm_set(3000 * US_PER_MS, test_multi_cb, (void *)3);
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rte_eal_alarm_set(2000 * US_PER_MS, test_multi_cb, (void *)2);
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rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)1);
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rm_count = rte_eal_alarm_cancel(test_multi_cb, (void *)2);
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rte_delay_ms(3500);
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if (cb_count.cnt != 2 || rm_count != 1) {
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printf("Error: invalid flags count or alarm removal failure"
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" - flags value = %d, expected = %d\n", cb_count.cnt, 2);
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/* remove any callbacks that might remain */
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rte_eal_alarm_cancel(test_multi_cb, (void *)-1);
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return -1;
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}
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printf("Testing adding and then removing multiple alarms\n");
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/* finally test that no callbacks are called if we delete them all*/
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rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)1);
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rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)2);
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rte_eal_alarm_set(1000 * US_PER_MS, test_multi_cb, (void *)3);
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rm_count = rte_eal_alarm_cancel(test_alarm_callback, (void *)-1);
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if (rm_count != 0) {
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printf("Error removing non-existant alarm succeeded\n");
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rte_eal_alarm_cancel(test_multi_cb, (void *) -1);
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return -1;
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}
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rm_count = rte_eal_alarm_cancel(test_multi_cb, (void *) -1);
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if (rm_count != 3) {
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printf("Error removing all pending alarm callbacks\n");
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return -1;
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}
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/* Test that we cannot cancel an alarm from within the callback itself
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* Also test that we can cancel head-of-line callbacks ok.*/
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flag = 0;
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recursive_error = 0;
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rte_eal_alarm_set(1000 * US_PER_MS, test_remove_in_callback, (void *)1);
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rte_eal_alarm_set(2000 * US_PER_MS, test_remove_in_callback, (void *)2);
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rm_count = rte_eal_alarm_cancel(test_remove_in_callback, (void *)1);
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if (rm_count != 1) {
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printf("Error cancelling head-of-list callback\n");
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return -1;
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}
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rte_delay_ms(1500);
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if (flag != 0) {
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printf("Error, cancelling head-of-list leads to premature callback\n");
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return -1;
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}
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rte_delay_ms(1000);
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if (flag != 2) {
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printf("Error - expected callback not called\n");
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rte_eal_alarm_cancel(test_remove_in_callback, (void *)-1);
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return -1;
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}
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if (recursive_error == 1)
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return -1;
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/* Check if it can cancel all for the same callback */
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printf("Testing canceling all for the same callback\n");
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flag_2 = 0;
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rte_eal_alarm_set(1000 * US_PER_MS, test_remove_in_callback, (void *)1);
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rte_eal_alarm_set(2000 * US_PER_MS, test_remove_in_callback_2, (void *)2);
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rte_eal_alarm_set(3000 * US_PER_MS, test_remove_in_callback_2, (void *)3);
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rte_eal_alarm_set(4000 * US_PER_MS, test_remove_in_callback, (void *)4);
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rm_count = rte_eal_alarm_cancel(test_remove_in_callback_2, (void *)-1);
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if (rm_count != 2) {
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printf("Error, cannot cancel all for the same callback\n");
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return -1;
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}
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rm_count = rte_eal_alarm_cancel(test_remove_in_callback, (void *)-1);
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if (rm_count != 2) {
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printf("Error, cannot cancel all for the same callback\n");
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return -1;
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}
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return 0;
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}
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int
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test_alarm(void)
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{
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int count = 0;
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/* check if the callback will be called */
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printf("check if the callback will be called\n");
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flag = 0;
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if (rte_eal_alarm_set(RTE_TEST_ALARM_TIMEOUT * US_PER_MS,
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test_alarm_callback, NULL) < 0) {
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printf("fail to set alarm callback\n");
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return -1;
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}
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while (flag == 0 && count ++ < 6)
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rte_delay_ms(RTE_TEST_CHECK_PERIOD);
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if (flag == 0){
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printf("Callback not called\n");
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return -1;
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}
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/* check if it will fail to set alarm with wrong us value */
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printf("check if it will fail to set alarm with wrong ms values\n");
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if (rte_eal_alarm_set(0, test_alarm_callback,
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NULL) >= 0) {
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printf("should not be successful with 0 us value\n");
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return -1;
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}
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if (rte_eal_alarm_set(UINT64_MAX - 1, test_alarm_callback,
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NULL) >= 0) {
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printf("should not be successful with (UINT64_MAX-1) us value\n");
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return -1;
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}
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/* check if it will fail to set alarm with null callback parameter */
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printf("check if it will fail to set alarm with null callback parameter\n");
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if (rte_eal_alarm_set(RTE_TEST_ALARM_TIMEOUT, NULL, NULL) >= 0) {
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printf("should not be successful to set alarm with null callback parameter\n");
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return -1;
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}
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/* check if it will fail to remove alarm with null callback parameter */
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printf("check if it will fail to remove alarm with null callback parameter\n");
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if (rte_eal_alarm_cancel(NULL, NULL) == 0) {
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printf("should not be successful to remove alarm with null callback parameter");
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return -1;
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}
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if (test_multi_alarms() != 0)
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return -1;
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return 0;
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}
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