feat: build proect for restproxy
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zhangsz
224
proxy_c/third-lib/libevent/test/test-changelist.c
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proxy_c/third-lib/libevent/test/test-changelist.c
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/*
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* Copyright (c) 2010-2012 Niels Provos and Nick Mathewson
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "event2/event-config.h"
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#ifdef _WIN32
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#include <winsock2.h>
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#include <windows.h>
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#else
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#include <unistd.h>
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#endif
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#include <sys/types.h>
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#include <sys/stat.h>
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#ifdef EVENT__HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#ifdef EVENT__HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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#include <fcntl.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include "event2/event.h"
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#include "event2/util.h"
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#include <time.h>
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struct cpu_usage_timer {
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#ifdef _WIN32
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HANDLE thread;
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FILETIME usertimeBegin;
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FILETIME kerneltimeBegin;
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#else
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clock_t ticksBegin;
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#endif
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struct timeval timeBegin;
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};
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static void
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start_cpu_usage_timer(struct cpu_usage_timer *timer)
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{
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#ifdef _WIN32
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int r;
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FILETIME createtime, exittime;
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timer->thread = GetCurrentThread();
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r = GetThreadTimes(timer->thread, &createtime, &exittime,
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&timer->usertimeBegin, &timer->kerneltimeBegin);
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if (r==0) printf("GetThreadTimes failed.");
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#else
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timer->ticksBegin = clock();
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#endif
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evutil_gettimeofday(&timer->timeBegin, NULL);
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}
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#ifdef _WIN32
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static ev_int64_t
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filetime_to_100nsec(const FILETIME *ft)
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{
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/* Number of 100-nanosecond units */
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ev_int64_t n = ft->dwHighDateTime;
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n <<= 32;
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n += ft->dwLowDateTime;
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return n;
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}
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static double
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filetime_diff(const FILETIME *ftStart, const FILETIME *ftEnd)
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{
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ev_int64_t s, e, diff;
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double r;
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s = filetime_to_100nsec(ftStart);
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e = filetime_to_100nsec(ftEnd);
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diff = e - s;
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r = (double) diff;
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return r / 1.0e7;
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}
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#endif
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static void
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get_cpu_usage(struct cpu_usage_timer *timer, double *secElapsedOut,
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double *secUsedOut, double *usageOut)
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{
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#ifdef _WIN32
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double usertime_seconds, kerneltime_seconds;
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FILETIME createtime, exittime, usertimeEnd, kerneltimeEnd;
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int r;
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#else
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clock_t ticksEnd;
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#endif
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struct timeval timeEnd, timeDiff;
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double secondsPassed, secondsUsed;
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#ifdef _WIN32
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r = GetThreadTimes(timer->thread, &createtime, &exittime,
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&usertimeEnd, &kerneltimeEnd);
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if (r==0) printf("GetThreadTimes failed.");
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usertime_seconds = filetime_diff(&timer->usertimeBegin, &usertimeEnd);
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kerneltime_seconds = filetime_diff(&timer->kerneltimeBegin, &kerneltimeEnd);
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secondsUsed = kerneltime_seconds + usertime_seconds;
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#else
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ticksEnd = clock();
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secondsUsed = (ticksEnd - timer->ticksBegin) / (double)CLOCKS_PER_SEC;
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#endif
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evutil_gettimeofday(&timeEnd, NULL);
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evutil_timersub(&timeEnd, &timer->timeBegin, &timeDiff);
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secondsPassed = timeDiff.tv_sec + (timeDiff.tv_usec / 1.0e6);
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*secElapsedOut = secondsPassed;
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*secUsedOut = secondsUsed;
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*usageOut = secondsUsed / secondsPassed;
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}
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static void
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write_cb(evutil_socket_t fd, short event, void *arg)
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{
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printf("write callback. should only see this once\n");
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/* got what we want remove the event */
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event_del(*(struct event**)arg);
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/* opps changed my mind add it back again */
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event_add(*(struct event**)arg,NULL);
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/* not a good day for decisiveness, I really didn't want it after all */
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event_del(*(struct event**)arg);
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}
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static void
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timeout_cb(evutil_socket_t fd, short event, void *arg)
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{
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printf("timeout fired, time to end test\n");
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event_del(*(struct event**)arg);
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return;
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}
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int
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main(int argc, char **argv)
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{
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struct event* ev;
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struct event* timeout;
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struct event_base* base;
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evutil_socket_t pair[2];
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struct timeval tv;
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struct cpu_usage_timer timer;
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double usage, secPassed, secUsed;
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#ifdef _WIN32
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WORD wVersionRequested;
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WSADATA wsaData;
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wVersionRequested = MAKEWORD(2, 2);
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(void) WSAStartup(wVersionRequested, &wsaData);
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#endif
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if (evutil_socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == -1)
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return (1);
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/* Initalize the event library */
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if (!(base = event_base_new()))
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return (1);
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/* Initalize a timeout to terminate the test */
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timeout = evtimer_new(base,timeout_cb,&timeout);
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/* and watch for writability on one end of the pipe */
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ev = event_new(base,pair[1],EV_WRITE | EV_PERSIST, write_cb, &ev);
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tv.tv_sec = 1;
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tv.tv_usec = 500*1000;
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evtimer_add(timeout, &tv);
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event_add(ev, NULL);
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start_cpu_usage_timer(&timer);
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event_base_dispatch(base);
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event_free(ev);
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event_free(timeout);
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event_base_free(base);
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get_cpu_usage(&timer, &secPassed, &secUsed, &usage);
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/* attempt to calculate our cpu usage over the test should be
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virtually nil */
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printf("usec used=%d, usec passed=%d, cpu usage=%.2f%%\n",
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(int)(secUsed*1e6),
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(int)(secPassed*1e6),
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usage*100);
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if (usage > 50.0) /* way too high */
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return 1;
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return 0;
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}
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