source: UsbWattMeter/trunk/curl-7.47.1/lib/speedcheck.c@ 164

Last change on this file since 164 was 164, checked in by coas-nagasima, 6 years ago

TOPPERS/ECNLサンプルアプリ「USB充電器電力計」を追加

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
  • Property svn:mime-type set to text/x-csrc
File size: 2.6 KB
Line 
1/***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.haxx.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ***************************************************************************/
22
23#include "curl_setup.h"
24
25#include <curl/curl.h>
26#include "urldata.h"
27#include "sendf.h"
28#include "multiif.h"
29#include "speedcheck.h"
30
31void Curl_speedinit(struct SessionHandle *data)
32{
33 memset(&data->state.keeps_speed, 0, sizeof(struct timeval));
34}
35
36CURLcode Curl_speedcheck(struct SessionHandle *data,
37 struct timeval now)
38{
39 if((data->progress.current_speed >= 0) &&
40 data->set.low_speed_time &&
41 (Curl_tvlong(data->state.keeps_speed) != 0) &&
42 (data->progress.current_speed < data->set.low_speed_limit)) {
43 long howlong = Curl_tvdiff(now, data->state.keeps_speed);
44 long nextcheck = (data->set.low_speed_time * 1000) - howlong;
45
46 /* We are now below the "low speed limit". If we are below it
47 for "low speed time" seconds we consider that enough reason
48 to abort the download. */
49 if(nextcheck <= 0) {
50 /* we have been this slow for long enough, now die */
51 failf(data,
52 "Operation too slow. "
53 "Less than %ld bytes/sec transferred the last %ld seconds",
54 data->set.low_speed_limit,
55 data->set.low_speed_time);
56 return CURLE_OPERATION_TIMEDOUT;
57 }
58 else {
59 /* wait complete low_speed_time */
60 Curl_expire_latest(data, nextcheck);
61 }
62 }
63 else {
64 /* we keep up the required speed all right */
65 data->state.keeps_speed = now;
66
67 if(data->set.low_speed_limit)
68 /* if there is a low speed limit enabled, we set the expire timer to
69 make this connection's speed get checked again no later than when
70 this time is up */
71 Curl_expire_latest(data, data->set.low_speed_time*1000);
72 }
73 return CURLE_OK;
74}
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