1/***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 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 * SPDX-License-Identifier: curl
22 *
23 ***************************************************************************/
24
25#include "curl_setup.h"
26
27#include <curl/curl.h>
28#include "urldata.h"
29#include "sendf.h"
30#include "multiif.h"
31#include "speedcheck.h"
32
33void Curl_speedinit(struct Curl_easy *data)
34{
35 memset(s: &data->state.keeps_speed, c: 0, n: sizeof(struct curltime));
36}
37
38/*
39 * @unittest: 1606
40 */
41CURLcode Curl_speedcheck(struct Curl_easy *data,
42 struct curltime now)
43{
44 if(data->req.keepon & KEEP_RECV_PAUSE)
45 /* A paused transfer is not qualified for speed checks */
46 return CURLE_OK;
47
48 if((data->progress.current_speed >= 0) && data->set.low_speed_time) {
49 if(data->progress.current_speed < data->set.low_speed_limit) {
50 if(!data->state.keeps_speed.tv_sec)
51 /* under the limit at this very moment */
52 data->state.keeps_speed = now;
53 else {
54 /* how long has it been under the limit */
55 timediff_t howlong = Curl_timediff(newer: now, older: data->state.keeps_speed);
56
57 if(howlong >= data->set.low_speed_time * 1000) {
58 /* too long */
59 failf(data,
60 fmt: "Operation too slow. "
61 "Less than %ld bytes/sec transferred the last %ld seconds",
62 data->set.low_speed_limit,
63 data->set.low_speed_time);
64 return CURLE_OPERATION_TIMEDOUT;
65 }
66 }
67 }
68 else
69 /* faster right now */
70 data->state.keeps_speed.tv_sec = 0;
71 }
72
73 if(data->set.low_speed_limit)
74 /* if low speed limit is enabled, set the expire timer to make this
75 connection's speed get checked again in a second */
76 Curl_expire(data, milli: 1000, EXPIRE_SPEEDCHECK);
77
78 return CURLE_OK;
79}
80