5e19b185fd
FUTEX_LOCK_PI uses CLOCK_REALTIME so adjust clock timebase accordingly. FUTEX_WAIT_BITSET, FUTEX_WAIT_REQUEUE_PI, FUTEX_LOCK_PI2 are updated to check the presence of FUTEX_CLOCK_REALTIME flag. Test: atest bionic-unit-tests Bug: 312787238 Bug: 315897315 Change-Id: I2d93286cf22d3b3d9f3757d49b46f7ee9ea5490c
83 lines
3.1 KiB
C++
83 lines
3.1 KiB
C++
/*
|
|
* Copyright (C) 2013 The Android Open Source Project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "private/bionic_time_conversions.h"
|
|
|
|
#include "private/bionic_constants.h"
|
|
|
|
bool timespec_from_timeval(timespec& ts, const timeval& tv) {
|
|
// Whole seconds can just be copied.
|
|
ts.tv_sec = tv.tv_sec;
|
|
|
|
// But we might overflow when converting microseconds to nanoseconds.
|
|
if (tv.tv_usec >= 1000000 || tv.tv_usec < 0) {
|
|
return false;
|
|
}
|
|
ts.tv_nsec = tv.tv_usec * 1000;
|
|
return true;
|
|
}
|
|
|
|
void timespec_from_ms(timespec& ts, const int ms) {
|
|
ts.tv_sec = ms / 1000;
|
|
ts.tv_nsec = (ms % 1000) * 1000000;
|
|
}
|
|
|
|
void timeval_from_timespec(timeval& tv, const timespec& ts) {
|
|
tv.tv_sec = ts.tv_sec;
|
|
tv.tv_usec = ts.tv_nsec / 1000;
|
|
}
|
|
|
|
static void convert_timespec_clocks(timespec& new_time, clockid_t new_clockbase,
|
|
const timespec& old_time, clockid_t old_clockbase) {
|
|
// get reference clocks
|
|
timespec new_clock;
|
|
clock_gettime(new_clockbase, &new_clock);
|
|
timespec old_clock;
|
|
clock_gettime(old_clockbase, &old_clock);
|
|
|
|
// compute new time by moving old delta to the new clock.
|
|
new_time.tv_sec = old_time.tv_sec - old_clock.tv_sec + new_clock.tv_sec;
|
|
new_time.tv_nsec = old_time.tv_nsec - old_clock.tv_nsec + new_clock.tv_nsec;
|
|
|
|
// correct nsec to second wrap.
|
|
if (new_time.tv_nsec >= NS_PER_S) {
|
|
new_time.tv_nsec -= NS_PER_S;
|
|
new_time.tv_sec += 1;
|
|
} else if (new_time.tv_nsec < 0) {
|
|
new_time.tv_nsec += NS_PER_S;
|
|
new_time.tv_sec -= 1;
|
|
}
|
|
}
|
|
|
|
void monotonic_time_from_realtime_time(timespec& monotonic_time, const timespec& realtime_time) {
|
|
convert_timespec_clocks(monotonic_time, CLOCK_MONOTONIC, realtime_time, CLOCK_REALTIME);
|
|
}
|
|
|
|
void realtime_time_from_monotonic_time(timespec& realtime_time, const timespec& monotonic_time) {
|
|
convert_timespec_clocks(realtime_time, CLOCK_REALTIME, monotonic_time, CLOCK_MONOTONIC);
|
|
}
|