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https://github.com/varun-r-mallya/sysprof.git
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103 lines
2.8 KiB
C
103 lines
2.8 KiB
C
/* sysprof-time-span.h
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*
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* Copyright 2023 Christian Hergert <chergert@redhat.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along 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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#pragma once
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#include <glib-object.h>
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#include <sysprof-capture.h>
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G_BEGIN_DECLS
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#define SYSPROF_TYPE_TIME_SPAN (sysprof_time_span_get_type())
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typedef struct _SysprofTimeSpan
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{
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gint64 begin_nsec;
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gint64 end_nsec;
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} SysprofTimeSpan;
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SYSPROF_AVAILABLE_IN_ALL
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GType sysprof_time_span_get_type (void) G_GNUC_CONST;
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SYSPROF_AVAILABLE_IN_ALL
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SysprofTimeSpan *sysprof_time_span_copy (const SysprofTimeSpan *self);
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SYSPROF_AVAILABLE_IN_ALL
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void sysprof_time_span_free (SysprofTimeSpan *self);
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static inline gint64
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sysprof_time_span_duration (SysprofTimeSpan time_span)
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{
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return time_span.end_nsec - time_span.begin_nsec;
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}
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static inline SysprofTimeSpan
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sysprof_time_span_relative_to (SysprofTimeSpan time_span,
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gint64 point)
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{
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return (SysprofTimeSpan) {
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time_span.begin_nsec - point,
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time_span.end_nsec - point
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};
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}
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static inline void
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sysprof_time_span_normalize (SysprofTimeSpan time_span,
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SysprofTimeSpan allowed,
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float values[restrict 2])
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{
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double duration = allowed.end_nsec - allowed.begin_nsec;
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time_span = sysprof_time_span_relative_to (time_span, allowed.begin_nsec);
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values[0] = time_span.begin_nsec / duration;
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values[1] = time_span.end_nsec / duration;
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}
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static inline SysprofTimeSpan
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sysprof_time_span_order (SysprofTimeSpan time_span)
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{
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if (time_span.begin_nsec > time_span.end_nsec)
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return (SysprofTimeSpan) { time_span.end_nsec, time_span.begin_nsec };
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return time_span;
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}
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static inline gboolean
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sysprof_time_span_clamp (SysprofTimeSpan *time_span,
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SysprofTimeSpan allowed)
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{
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if (time_span->end_nsec <= allowed.begin_nsec ||
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time_span->begin_nsec >= allowed.end_nsec)
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{
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time_span->begin_nsec = time_span->end_nsec = 0;
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return FALSE;
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}
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if (time_span->begin_nsec < allowed.begin_nsec)
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time_span->begin_nsec = allowed.begin_nsec;
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if (time_span->end_nsec > allowed.end_nsec)
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time_span->end_nsec = allowed.end_nsec;
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return TRUE;
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}
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G_END_DECLS
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