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/* GSequencer - Advanced GTK Sequencer
* Copyright (C) 2005-2023 Joël Krähemann
*
* This file is part of GSequencer.
*
* GSequencer is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GSequencer 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GSequencer. If not, see <http://www.gnu.org/licenses/>.
*/
#include <ags/lib/ags_time.h>
#include <ags/ags_api_config.h>
#include <time.h>
#include <math.h>
#ifdef __APPLE__
#include <mach/clock.h>
#include <mach/mach.h>
#endif
/**
* SECTION:ags_time
* @short_description: utility functions of time
* @title: AgsTime
* @section_id:
* @include: ags/lib/ags_time.h
*
* Functions to help you dealing with time.
*/
/**
* ags_time_nanosleep:
* @req: the requisition to sleep
*
* Nanosleep.
*
* Since: 5.5.1
*/
void
ags_time_nanosleep(struct timespec *req)
{
#if defined(AGS_W32_API)
Sleep((req->tv_nsec / 1000) + (req->tv_sec * 1000000));
#else
nanosleep(req, NULL);
#endif
}
/**
* ags_time_get_uptime_from_offset:
* @offset: the offset in tics
* @bpm: the beats per minute
* @delay: the buffer time as delay
* @delay_factor: tact segmentation
*
* Calculates uptime from @offset by applying factors @bpm, @delay and @delay_factor
* giving you the result as string.
*
* Returns: (transfer full): the string containing the time, a minus sign is prepend if factors
* are invalid
*
* Since: 3.0.0
*/
gchar*
ags_time_get_uptime_from_offset(guint offset,
gdouble bpm,
gdouble delay,
gdouble delay_factor)
{
gchar *uptime;
gdouble delay_min, delay_sec, delay_msec;
gdouble tact_redux;
guint min, sec, msec;
if(bpm <= 0.0 ||
delay <= 0.0 ||
delay_factor <= 0.0){
return(g_strdup_printf("-%s",
AGS_TIME_ZERO));
}
/* translate to time string */
tact_redux = offset;
delay_sec = 16.0 * delay_factor * bpm / 60.0;
delay_min = delay_sec * 60.0;
delay_msec = delay_sec / 1000.0;
min = (guint) floor(tact_redux / delay_min);
if(min > 0){
tact_redux = tact_redux - (min * delay_min);
}
sec = (guint) floor(tact_redux / delay_sec);
if(sec > 0){
tact_redux = tact_redux - (sec * delay_sec);
}
msec = (guint) floor(tact_redux / delay_msec);
uptime = g_strdup_printf("%.4d:%.2d.%.3d", min, sec, msec);
return(uptime);
}
/**
* ags_time_timeout_expired:
* @start_time: the start time #timespec-struct
* @timeout_delay: the delay #timespec-struct
*
* Check @start_time plus @timeout_delay against current time.
*
* Returns: %TRUE if timeout expired, otherwise %FALSE
*
* Since: 3.0.0
*/
gboolean
ags_time_timeout_expired(struct timespec *start_time,
struct timespec *timeout_delay)
{
struct timespec current_time;
struct timespec deadline;
#ifdef __APPLE__
clock_serv_t cclock;
mach_timespec_t mts;
#endif
if(start_time == NULL ||
timeout_delay == NULL){
return(TRUE);
}
#ifdef __APPLE__
host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
clock_get_time(cclock, &mts);
mach_port_deallocate(mach_task_self(), cclock);
current_time.tv_sec = mts.tv_sec;
current_time.tv_nsec = mts.tv_nsec;
#else
clock_gettime(CLOCK_MONOTONIC, ¤t_time);
#endif
if(start_time->tv_nsec + timeout_delay->tv_nsec >= AGS_NSEC_PER_SEC){
deadline.tv_sec = start_time->tv_sec + timeout_delay->tv_sec + 1;
deadline.tv_nsec = (start_time->tv_nsec + timeout_delay->tv_nsec) - AGS_NSEC_PER_SEC;
}else{
deadline.tv_sec = start_time->tv_sec + timeout_delay->tv_sec;
deadline.tv_nsec = start_time->tv_nsec + timeout_delay->tv_nsec;
}
if(current_time.tv_sec > deadline.tv_sec){
return(TRUE);
}else{
if(current_time.tv_sec == deadline.tv_sec &&
current_time.tv_nsec > deadline.tv_nsec){
return(TRUE);
}
}
return(FALSE);
}
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