1/***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2020, 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.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 Curl_easy *data)
32{
33 memset(&data->state.keeps_speed, 0, sizeof(struct curltime));
34}
35
36/*
37 * @unittest: 1606
38 */
39CURLcode Curl_speedcheck(struct Curl_easy *data,
40 struct curltime now)
41{
42 if(data->req.keepon & KEEP_RECV_PAUSE)
43 /* A paused transfer is not qualified for speed checks */
44 return CURLE_OK;
45
46 if((data->progress.current_speed >= 0) && data->set.low_speed_time) {
47 if(data->progress.current_speed < data->set.low_speed_limit) {
48 if(!data->state.keeps_speed.tv_sec)
49 /* under the limit at this very moment */
50 data->state.keeps_speed = now;
51 else {
52 /* how long has it been under the limit */
53 timediff_t howlong = Curl_timediff(now, data->state.keeps_speed);
54
55 if(howlong >= data->set.low_speed_time * 1000) {
56 /* too long */
57 failf(data,
58 "Operation too slow. "
59 "Less than %ld bytes/sec transferred the last %ld seconds",
60 data->set.low_speed_limit,
61 data->set.low_speed_time);
62 return CURLE_OPERATION_TIMEDOUT;
63 }
64 }
65 }
66 else
67 /* faster right now */
68 data->state.keeps_speed.tv_sec = 0;
69 }
70
71 if(data->set.low_speed_limit)
72 /* if low speed limit is enabled, set the expire timer to make this
73 connection's speed get checked again in a second */
74 Curl_expire(data, 1000, EXPIRE_SPEEDCHECK);
75
76 return CURLE_OK;
77}
78