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https://github.com/varun-r-mallya/sysprof.git
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53c718b708
As we gain in usage, we need to be more careful about using a prefix that will not collide with other symbols. So version 3 of our ABI will change to using Sysprof/SYSPROF/sysprof as the various prefixes. The soname/api version bump will happen later on this branch so that things are easier to test up until then.
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
/* sysprof-clock.c
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*
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* Copyright 2016-2019 Christian Hergert <chergert@redhat.com>
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*
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* This file is free software; you can redistribute it and/or modify it under
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* the terms of the GNU Lesser General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This file is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#define G_LOG_DOMAIN "sysprof-clock"
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#include "config.h"
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#include "sysprof-clock.h"
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gint sysprof_clock = -1;
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void
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sysprof_clock_init (void)
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{
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static const gint clock_ids[] = {
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CLOCK_MONOTONIC,
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CLOCK_MONOTONIC_RAW,
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#ifdef __linux__
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CLOCK_MONOTONIC_COARSE,
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CLOCK_REALTIME_COARSE,
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#endif
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CLOCK_REALTIME,
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};
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if (sysprof_clock != -1)
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return;
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for (guint i = 0; i < G_N_ELEMENTS (clock_ids); i++)
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{
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struct timespec ts;
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int clock_id = clock_ids [i];
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if (0 == clock_gettime (clock_id, &ts))
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{
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sysprof_clock = clock_id;
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return;
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}
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}
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g_assert_not_reached ();
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}
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