47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* This is just a quick test program to see how long a wait is
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* produced by a select loop with an exponential backoff.
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*
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* gcc -g -O2 -o test_select test_select.c
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* test_select
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*
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* Roy Fielding, 1996
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/time.h>
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int main (void)
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{
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int srv;
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long waittime = 4096;
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struct timeval tv;
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printf("Start\n");
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while ((waittime > 0) && (waittime < 3000000)) {
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printf("%d\n", waittime);
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tv.tv_sec = waittime/1000000;
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tv.tv_usec = waittime%1000000;
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waittime <<= 1;
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srv = select(0, NULL, NULL, NULL, &tv);
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}
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printf("End\n");
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exit(0);
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}
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