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e21b3a40ac
Use OS rather than compiler specific flag the same way that __FreeBSD__, __APPLE__, __OpenBSD__, and __linux__ are used. _WIN32 is defined by GCC (and others) on windows for Win32 and Win64 applications. _WIN32 is set by default for several other windows based compilers: DMC, MSVC, Intel, Watcom, LCC. Although the change is for consistency, it allows the Go tools to be compiled with non-Mingw GCC distributions and non-GCC compilers that support the GCC extensions. R=rsc, brainman, vcc CC=golang-dev https://golang.org/cl/2168043
67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
/*
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Plan 9 from User Space src/lib9/time.c
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http://code.swtch.com/plan9port/src/tip/src/lib9/time.c
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Copyright 2001-2007 Russ Cox. All Rights Reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <u.h>
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#include <sys/time.h>
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#include <time.h>
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#ifndef _WIN32
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#include <sys/resource.h>
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#endif
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#define NOPLAN9DEFINES
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#include <libc.h>
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long
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p9times(long *t)
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{
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#ifdef _WIN32
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memset(t, 0, 4*sizeof(long));
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#else
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struct rusage ru, cru;
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if(getrusage(0, &ru) < 0 || getrusage(-1, &cru) < 0)
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return -1;
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t[0] = ru.ru_utime.tv_sec*1000 + ru.ru_utime.tv_usec/1000;
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t[1] = ru.ru_stime.tv_sec*1000 + ru.ru_stime.tv_usec/1000;
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t[2] = cru.ru_utime.tv_sec*1000 + cru.ru_utime.tv_usec/1000;
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t[3] = cru.ru_stime.tv_sec*1000 + cru.ru_stime.tv_usec/1000;
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#endif
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/* BUG */
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return t[0]+t[1]+t[2]+t[3];
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}
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double
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p9cputime(void)
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{
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long t[4];
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double d;
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if(p9times(t) < 0)
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return -1.0;
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d = (double)t[0]+(double)t[1]+(double)t[2]+(double)t[3];
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return d/1000.0;
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}
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