glibc/inet/tst-deadline.c
Paul Eggert 5a82c74822 Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 02:43:31 -07:00

189 lines
7.4 KiB
C

/* Tests for computing deadlines for timeouts.
Copyright (C) 2017-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <inet/net-internal.h>
#include <limits.h>
#include <stdbool.h>
#include <stdint.h>
#include <support/check.h>
/* Find the maximum value which can be represented in a time_t. */
static time_t
time_t_max (void)
{
_Static_assert (0 > (time_t) -1, "time_t is signed");
uintmax_t current = 1;
while (true)
{
uintmax_t next = current * 2;
/* This cannot happen because time_t is signed. */
TEST_VERIFY_EXIT (next > current);
++next;
if ((time_t) next < 0 || next != (uintmax_t) (time_t) next)
/* Value cannot be represented in time_t. Return the previous
value. */
return current;
current = next;
}
}
static int
do_test (void)
{
{
struct deadline_current_time current_time = __deadline_current_time ();
TEST_VERIFY (current_time.current.tv_sec >= 0);
current_time = __deadline_current_time ();
/* Due to CLOCK_MONOTONIC, either seconds or nanoseconds are
greater than zero. This is also true for the gettimeofday
fallback. */
TEST_VERIFY (current_time.current.tv_sec >= 0);
TEST_VERIFY (current_time.current.tv_sec > 0
|| current_time.current.tv_nsec > 0);
}
/* Check basic computations of deadlines. */
struct deadline_current_time current_time = { { 1, 123456789 } };
struct deadline deadline = __deadline_from_timeval
(current_time, (struct timeval) { 0, 1 });
TEST_VERIFY (deadline.absolute.tv_sec == 1);
TEST_VERIFY (deadline.absolute.tv_nsec == 123457789);
TEST_VERIFY (__deadline_to_ms (current_time, deadline) == 1);
deadline = __deadline_from_timeval
(current_time, ((struct timeval) { 0, 2 }));
TEST_VERIFY (deadline.absolute.tv_sec == 1);
TEST_VERIFY (deadline.absolute.tv_nsec == 123458789);
TEST_VERIFY (__deadline_to_ms (current_time, deadline) == 1);
deadline = __deadline_from_timeval
(current_time, ((struct timeval) { 1, 0 }));
TEST_VERIFY (deadline.absolute.tv_sec == 2);
TEST_VERIFY (deadline.absolute.tv_nsec == 123456789);
TEST_VERIFY (__deadline_to_ms (current_time, deadline) == 1000);
/* Check if timeouts are correctly rounded up to the next
millisecond. */
for (int i = 0; i < 999999; ++i)
{
++current_time.current.tv_nsec;
TEST_VERIFY (__deadline_to_ms (current_time, deadline) == 1000);
}
/* A full millisecond has elapsed, so the time to the deadline is
now less than 1000. */
++current_time.current.tv_nsec;
TEST_VERIFY (__deadline_to_ms (current_time, deadline) == 999);
/* Check __deadline_to_ms carry-over. */
current_time = (struct deadline_current_time) { { 9, 123456789 } };
deadline = (struct deadline) { { 10, 122456789 } };
TEST_VERIFY (__deadline_to_ms (current_time, deadline) == 999);
deadline = (struct deadline) { { 10, 122456790 } };
TEST_VERIFY (__deadline_to_ms (current_time, deadline) == 1000);
deadline = (struct deadline) { { 10, 123456788 } };
TEST_VERIFY (__deadline_to_ms (current_time, deadline) == 1000);
deadline = (struct deadline) { { 10, 123456789 } };
TEST_VERIFY (__deadline_to_ms (current_time, deadline) == 1000);
/* Check __deadline_to_ms overflow. */
deadline = (struct deadline) { { INT_MAX - 1, 1 } };
TEST_VERIFY (__deadline_to_ms (current_time, deadline) == INT_MAX);
/* Check __deadline_to_ms for elapsed deadlines. */
current_time = (struct deadline_current_time) { { 9, 123456789 } };
deadline.absolute = current_time.current;
TEST_VERIFY (__deadline_to_ms (current_time, deadline) == 0);
current_time = (struct deadline_current_time) { { 9, 123456790 } };
TEST_VERIFY (__deadline_to_ms (current_time, deadline) == 0);
current_time = (struct deadline_current_time) { { 10, 0 } };
TEST_VERIFY (__deadline_to_ms (current_time, deadline) == 0);
current_time = (struct deadline_current_time) { { 10, 123456788 } };
TEST_VERIFY (__deadline_to_ms (current_time, deadline) == 0);
current_time = (struct deadline_current_time) { { 10, 123456789 } };
TEST_VERIFY (__deadline_to_ms (current_time, deadline) == 0);
/* Check carry-over in __deadline_from_timeval. */
current_time = (struct deadline_current_time) { { 9, 998000001 } };
for (int i = 0; i < 2000; ++i)
{
deadline = __deadline_from_timeval
(current_time, (struct timeval) { 1, i });
TEST_VERIFY (deadline.absolute.tv_sec == 10);
TEST_VERIFY (deadline.absolute.tv_nsec == 998000001 + i * 1000);
}
for (int i = 2000; i < 3000; ++i)
{
deadline = __deadline_from_timeval
(current_time, (struct timeval) { 2, i });
TEST_VERIFY (deadline.absolute.tv_sec == 12);
TEST_VERIFY (deadline.absolute.tv_nsec == 1 + (i - 2000) * 1000);
}
/* Check infinite deadlines. */
deadline = __deadline_from_timeval
((struct deadline_current_time) { { 0, 1000 * 1000 * 1000 - 1000 } },
(struct timeval) { time_t_max (), 1 });
TEST_VERIFY (__deadline_is_infinite (deadline));
deadline = __deadline_from_timeval
((struct deadline_current_time) { { 0, 1000 * 1000 * 1000 - 1001 } },
(struct timeval) { time_t_max (), 1 });
TEST_VERIFY (!__deadline_is_infinite (deadline));
deadline = __deadline_from_timeval
((struct deadline_current_time)
{ { time_t_max (), 1000 * 1000 * 1000 - 1000 } },
(struct timeval) { 0, 1 });
TEST_VERIFY (__deadline_is_infinite (deadline));
deadline = __deadline_from_timeval
((struct deadline_current_time)
{ { time_t_max () / 2 + 1, 0 } },
(struct timeval) { time_t_max () / 2 + 1, 0 });
TEST_VERIFY (__deadline_is_infinite (deadline));
/* Check __deadline_first behavior. */
deadline = __deadline_first
((struct deadline) { { 1, 2 } },
(struct deadline) { { 1, 3 } });
TEST_VERIFY (deadline.absolute.tv_sec == 1);
TEST_VERIFY (deadline.absolute.tv_nsec == 2);
deadline = __deadline_first
((struct deadline) { { 1, 3 } },
(struct deadline) { { 1, 2 } });
TEST_VERIFY (deadline.absolute.tv_sec == 1);
TEST_VERIFY (deadline.absolute.tv_nsec == 2);
deadline = __deadline_first
((struct deadline) { { 1, 2 } },
(struct deadline) { { 2, 1 } });
TEST_VERIFY (deadline.absolute.tv_sec == 1);
TEST_VERIFY (deadline.absolute.tv_nsec == 2);
deadline = __deadline_first
((struct deadline) { { 1, 2 } },
(struct deadline) { { 2, 4 } });
TEST_VERIFY (deadline.absolute.tv_sec == 1);
TEST_VERIFY (deadline.absolute.tv_nsec == 2);
deadline = __deadline_first
((struct deadline) { { 2, 4 } },
(struct deadline) { { 1, 2 } });
TEST_VERIFY (deadline.absolute.tv_sec == 1);
TEST_VERIFY (deadline.absolute.tv_nsec == 2);
return 0;
}
#include <support/test-driver.c>