weston/tests/timespec-test.c
Alexandros Frantzis 10d708d268 shared: Add timespec_to_proto helper function
Add helper function to convert from struct timespec values to tv_sec_hi,
tv_sec_lo, tv_nsec triplets used for sending high-resolution timestamp
data over the wayland protocol. Replace existing conversion code with
the helper function.

Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
2017-12-18 11:27:43 +02:00

297 lines
7.1 KiB
C

/*
* Copyright © 2016 Collabora, Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "config.h"
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include <unistd.h>
#include <time.h>
#include "timespec-util.h"
#include "shared/helpers.h"
#include "zunitc/zunitc.h"
ZUC_TEST(timespec_test, timespec_sub)
{
struct timespec a, b, r;
a.tv_sec = 1;
a.tv_nsec = 1;
b.tv_sec = 0;
b.tv_nsec = 2;
timespec_sub(&r, &a, &b);
ZUC_ASSERT_EQ(r.tv_sec, 0);
ZUC_ASSERT_EQ(r.tv_nsec, NSEC_PER_SEC - 1);
}
ZUC_TEST(timespec_test, timespec_to_nsec)
{
struct timespec a;
a.tv_sec = 4;
a.tv_nsec = 4;
ZUC_ASSERT_EQ(timespec_to_nsec(&a), (NSEC_PER_SEC * 4ULL) + 4);
}
ZUC_TEST(timespec_test, timespec_to_usec)
{
struct timespec a;
a.tv_sec = 4;
a.tv_nsec = 4000;
ZUC_ASSERT_EQ(timespec_to_usec(&a), (4000000ULL) + 4);
}
ZUC_TEST(timespec_test, timespec_to_msec)
{
struct timespec a;
a.tv_sec = 4;
a.tv_nsec = 4000000;
ZUC_ASSERT_EQ(timespec_to_msec(&a), (4000ULL) + 4);
}
ZUC_TEST(timespec_test, timespec_to_proto)
{
struct timespec a;
uint32_t tv_sec_hi;
uint32_t tv_sec_lo;
uint32_t tv_nsec;
a.tv_sec = 0;
a.tv_nsec = 0;
timespec_to_proto(&a, &tv_sec_hi, &tv_sec_lo, &tv_nsec);
ZUC_ASSERT_EQ(0, tv_sec_hi);
ZUC_ASSERT_EQ(0, tv_sec_lo);
ZUC_ASSERT_EQ(0, tv_nsec);
a.tv_sec = 1234;
a.tv_nsec = NSEC_PER_SEC - 1;
timespec_to_proto(&a, &tv_sec_hi, &tv_sec_lo, &tv_nsec);
ZUC_ASSERT_EQ(0, tv_sec_hi);
ZUC_ASSERT_EQ(1234, tv_sec_lo);
ZUC_ASSERT_EQ(NSEC_PER_SEC - 1, tv_nsec);
a.tv_sec = (time_t)0x7000123470005678LL;
a.tv_nsec = 1;
timespec_to_proto(&a, &tv_sec_hi, &tv_sec_lo, &tv_nsec);
ZUC_ASSERT_EQ((uint64_t)a.tv_sec >> 32, tv_sec_hi);
ZUC_ASSERT_EQ(0x70005678, tv_sec_lo);
ZUC_ASSERT_EQ(1, tv_nsec);
}
ZUC_TEST(timespec_test, millihz_to_nsec)
{
ZUC_ASSERT_EQ(millihz_to_nsec(60000), 16666666);
}
ZUC_TEST(timespec_test, timespec_add_nsec)
{
struct timespec a, r;
a.tv_sec = 0;
a.tv_nsec = NSEC_PER_SEC - 1;
timespec_add_nsec(&r, &a, 1);
ZUC_ASSERT_EQ(1, r.tv_sec);
ZUC_ASSERT_EQ(0, r.tv_nsec);
timespec_add_nsec(&r, &a, 2);
ZUC_ASSERT_EQ(1, r.tv_sec);
ZUC_ASSERT_EQ(1, r.tv_nsec);
timespec_add_nsec(&r, &a, (NSEC_PER_SEC * 2ULL));
ZUC_ASSERT_EQ(2, r.tv_sec);
ZUC_ASSERT_EQ(NSEC_PER_SEC - 1, r.tv_nsec);
timespec_add_nsec(&r, &a, (NSEC_PER_SEC * 2ULL) + 2);
ZUC_ASSERT_EQ(r.tv_sec, 3);
ZUC_ASSERT_EQ(r.tv_nsec, 1);
a.tv_sec = 1;
a.tv_nsec = 1;
timespec_add_nsec(&r, &a, -2);
ZUC_ASSERT_EQ(r.tv_sec, 0);
ZUC_ASSERT_EQ(r.tv_nsec, NSEC_PER_SEC - 1);
a.tv_nsec = 0;
timespec_add_nsec(&r, &a, -NSEC_PER_SEC);
ZUC_ASSERT_EQ(0, r.tv_sec);
ZUC_ASSERT_EQ(0, r.tv_nsec);
a.tv_nsec = 0;
timespec_add_nsec(&r, &a, -NSEC_PER_SEC + 1);
ZUC_ASSERT_EQ(0, r.tv_sec);
ZUC_ASSERT_EQ(1, r.tv_nsec);
a.tv_nsec = 50;
timespec_add_nsec(&r, &a, (-NSEC_PER_SEC * 10ULL));
ZUC_ASSERT_EQ(-9, r.tv_sec);
ZUC_ASSERT_EQ(50, r.tv_nsec);
r.tv_sec = 4;
r.tv_nsec = 0;
timespec_add_nsec(&r, &r, NSEC_PER_SEC + 10ULL);
ZUC_ASSERT_EQ(5, r.tv_sec);
ZUC_ASSERT_EQ(10, r.tv_nsec);
timespec_add_nsec(&r, &r, (NSEC_PER_SEC * 3ULL) - 9ULL);
ZUC_ASSERT_EQ(8, r.tv_sec);
ZUC_ASSERT_EQ(1, r.tv_nsec);
timespec_add_nsec(&r, &r, (NSEC_PER_SEC * 7ULL) + (NSEC_PER_SEC - 1ULL));
ZUC_ASSERT_EQ(16, r.tv_sec);
ZUC_ASSERT_EQ(0, r.tv_nsec);
}
ZUC_TEST(timespec_test, timespec_add_msec)
{
struct timespec a, r;
a.tv_sec = 1000;
a.tv_nsec = 1;
timespec_add_msec(&r, &a, 2002);
ZUC_ASSERT_EQ(1002, r.tv_sec);
ZUC_ASSERT_EQ(2000001, r.tv_nsec);
}
ZUC_TEST(timespec_test, timespec_sub_to_nsec)
{
struct timespec a, b;
a.tv_sec = 1000;
a.tv_nsec = 1;
b.tv_sec = 1;
b.tv_nsec = 2;
ZUC_ASSERT_EQ((999LL * NSEC_PER_SEC) - 1, timespec_sub_to_nsec(&a, &b));
}
ZUC_TEST(timespec_test, timespec_sub_to_msec)
{
struct timespec a, b;
a.tv_sec = 1000;
a.tv_nsec = 2000000L;
b.tv_sec = 2;
b.tv_nsec = 1000000L;
ZUC_ASSERT_EQ((998 * 1000) + 1, timespec_sub_to_msec(&a, &b));
}
ZUC_TEST(timespec_test, timespec_from_nsec)
{
struct timespec a;
timespec_from_nsec(&a, 0);
ZUC_ASSERT_EQ(0, a.tv_sec);
ZUC_ASSERT_EQ(0, a.tv_nsec);
timespec_from_nsec(&a, NSEC_PER_SEC - 1);
ZUC_ASSERT_EQ(0, a.tv_sec);
ZUC_ASSERT_EQ(NSEC_PER_SEC - 1, a.tv_nsec);
timespec_from_nsec(&a, NSEC_PER_SEC);
ZUC_ASSERT_EQ(1, a.tv_sec);
ZUC_ASSERT_EQ(0, a.tv_nsec);
timespec_from_nsec(&a, (5LL * NSEC_PER_SEC) + 1);
ZUC_ASSERT_EQ(5, a.tv_sec);
ZUC_ASSERT_EQ(1, a.tv_nsec);
}
ZUC_TEST(timespec_test, timespec_from_usec)
{
struct timespec a;
timespec_from_usec(&a, 0);
ZUC_ASSERT_EQ(0, a.tv_sec);
ZUC_ASSERT_EQ(0, a.tv_nsec);
timespec_from_usec(&a, 999999);
ZUC_ASSERT_EQ(0, a.tv_sec);
ZUC_ASSERT_EQ(999999 * 1000, a.tv_nsec);
timespec_from_usec(&a, 1000000);
ZUC_ASSERT_EQ(1, a.tv_sec);
ZUC_ASSERT_EQ(0, a.tv_nsec);
timespec_from_usec(&a, 5000001);
ZUC_ASSERT_EQ(5, a.tv_sec);
ZUC_ASSERT_EQ(1000, a.tv_nsec);
}
ZUC_TEST(timespec_test, timespec_from_msec)
{
struct timespec a;
timespec_from_msec(&a, 0);
ZUC_ASSERT_EQ(0, a.tv_sec);
ZUC_ASSERT_EQ(0, a.tv_nsec);
timespec_from_msec(&a, 999);
ZUC_ASSERT_EQ(0, a.tv_sec);
ZUC_ASSERT_EQ(999 * 1000000, a.tv_nsec);
timespec_from_msec(&a, 1000);
ZUC_ASSERT_EQ(1, a.tv_sec);
ZUC_ASSERT_EQ(0, a.tv_nsec);
timespec_from_msec(&a, 5001);
ZUC_ASSERT_EQ(5, a.tv_sec);
ZUC_ASSERT_EQ(1000000, a.tv_nsec);
}
ZUC_TEST(timespec_test, timespec_from_proto)
{
struct timespec a;
timespec_from_proto(&a, 0, 0, 0);
ZUC_ASSERT_EQ(0, a.tv_sec);
ZUC_ASSERT_EQ(0, a.tv_nsec);
timespec_from_proto(&a, 0, 1234, 9999);
ZUC_ASSERT_EQ(1234, a.tv_sec);
ZUC_ASSERT_EQ(9999, a.tv_nsec);
timespec_from_proto(&a, 0x1234, 0x5678, 1);
ZUC_ASSERT_EQ((time_t)0x0000123400005678LL, a.tv_sec);
ZUC_ASSERT_EQ(1, a.tv_nsec);
}
ZUC_TEST(timespec_test, timespec_is_zero)
{
struct timespec zero = { 0 };
struct timespec non_zero_sec = { .tv_sec = 1, .tv_nsec = 0 };
struct timespec non_zero_nsec = { .tv_sec = 0, .tv_nsec = 1 };
ZUC_ASSERT_TRUE(timespec_is_zero(&zero));
ZUC_ASSERT_FALSE(timespec_is_zero(&non_zero_nsec));
ZUC_ASSERT_FALSE(timespec_is_zero(&non_zero_sec));
}