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8246112: Remove build-time and run-time checks for clock_gettime and CLOCK_MONOTONIC

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Reviewed-by: ihse, erikj, gziemski, hseigel
This commit is contained in:
David Holmes 2021-01-27 01:18:52 +00:00
parent 19b6f61bd2
commit 6f2be9c608
16 changed files with 90 additions and 359 deletions
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11
src/hotspot/os/bsd/os_perf_bsd.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012, 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -56,12 +56,13 @@ class CPUPerformanceInterface::CPUPerformance : public CHeapObj<mtInternal> {
int _active_processor_count;
bool now_in_nanos(long* resultp) {
timeval current_time;
if (gettimeofday(&current_time, NULL) != 0) {
// Error getting current time
struct timespec tp;
int status = clock_gettime(CLOCK_REALTIME, &tp);
assert(status == 0, "clock_gettime error: %s", os::strerror(errno));
if (status != 0) {
return false;
}
*resultp = current_time.tv_sec * NANOS_PER_SEC + 1000L * current_time.tv_usec;
*resultp = tp.tv_sec * NANOS_PER_SEC + tp.tv_nsec;
return true;
}