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Diffstat (limited to 'app/test/test_alarm.c')
| -rw-r--r-- | app/test/test_alarm.c | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/app/test/test_alarm.c b/app/test/test_alarm.c new file mode 100644 index 00000000..5d6f4a27 --- /dev/null +++ b/app/test/test_alarm.c @@ -0,0 +1,260 @@ +/*- + * 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 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", + (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(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; +} + +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; +} + +static struct test_command alarm_cmd = { + .command = "alarm_autotest", + .callback = test_alarm, +}; +REGISTER_TEST_COMMAND(alarm_cmd); |