1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
|
/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 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.
*/
#include <stdio.h>
#include <stdint.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 10 /* ms */
#define RTE_TEST_CHECK_PERIOD 3 /* 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(10 * US_PER_MS, test_multi_cb, (void *)1);
rte_eal_alarm_set(20 * US_PER_MS, test_multi_cb, (void *)2);
/* now add in reverse order */
rte_eal_alarm_set(60 * US_PER_MS, test_multi_cb, (void *)6);
rte_eal_alarm_set(50 * US_PER_MS, test_multi_cb, (void *)5);
rte_eal_alarm_set(40 * US_PER_MS, test_multi_cb, (void *)4);
rte_eal_alarm_set(30 * US_PER_MS, test_multi_cb, (void *)3);
/* wait for expiry */
rte_delay_ms(65);
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(30 * US_PER_MS, test_multi_cb, (void *)3);
rte_eal_alarm_set(20 * US_PER_MS, test_multi_cb, (void *)2);
rte_eal_alarm_set(10 * US_PER_MS, test_multi_cb, (void *)1);
rm_count = rte_eal_alarm_cancel(test_multi_cb, (void *)2);
rte_delay_ms(35);
if (cb_count.cnt != 2 || rm_count != 1) {
printf("Error: invalid flags count or alarm removal failure"
" - flags value = %d, expected = %d\n",
(int)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(10 * US_PER_MS, test_multi_cb, (void *)1);
rte_eal_alarm_set(10 * US_PER_MS, test_multi_cb, (void *)2);
rte_eal_alarm_set(10 * 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(10 * US_PER_MS, test_remove_in_callback, (void *)1);
rte_eal_alarm_set(20 * 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(15);
if (flag != 0) {
printf("Error, cancelling head-of-list leads to premature callback\n");
return -1;
}
rte_delay_ms(10);
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(10 * US_PER_MS, test_remove_in_callback, (void *)1);
rte_eal_alarm_set(20 * US_PER_MS, test_remove_in_callback_2, (void *)2);
rte_eal_alarm_set(30 * US_PER_MS, test_remove_in_callback_2, (void *)3);
rte_eal_alarm_set(40 * 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;
}
static 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;
}
REGISTER_TEST_COMMAND(alarm_autotest, test_alarm);
|
