1 /*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel (at) 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 31 void Curl_speedinit(struct Curl_easy *data) 32 { 33 memset(&data->state.keeps_speed, 0, sizeof(struct timeval)); 34 } 35 36 CURLcode Curl_speedcheck(struct Curl_easy *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 time_t howlong = Curl_tvdiff(now, data->state.keeps_speed); 44 time_t 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 } 75
