1/*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2011, 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 http://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 "setup.h" 24 25#include <stdio.h> 26#include <string.h> 27 28#include <curl/curl.h> 29#include "urldata.h" 30#include "sendf.h" 31#include "multiif.h" 32#include "speedcheck.h" 33 34void Curl_speedinit(struct SessionHandle *data) 35{ 36 memset(&data->state.keeps_speed, 0, sizeof(struct timeval)); 37} 38 39CURLcode Curl_speedcheck(struct SessionHandle *data, 40 struct timeval now) 41{ 42 if((data->progress.current_speed >= 0) && 43 data->set.low_speed_time && 44 (Curl_tvlong(data->state.keeps_speed) != 0) && 45 (data->progress.current_speed < data->set.low_speed_limit)) { 46 long howlong = Curl_tvdiff(now, data->state.keeps_speed); 47 48 /* We are now below the "low speed limit". If we are below it 49 for "low speed time" seconds we consider that enough reason 50 to abort the download. */ 51 52 if((howlong/1000) > data->set.low_speed_time) { 53 /* we have been this slow for long enough, now die */ 54 failf(data, 55 "Operation too slow. " 56 "Less than %ld bytes/sec transferred the last %ld seconds", 57 data->set.low_speed_limit, 58 data->set.low_speed_time); 59 return CURLE_OPERATION_TIMEDOUT; 60 } 61 Curl_expire(data, howlong); 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(data, data->set.low_speed_time*1000); 72 } 73 return CURLE_OK; 74} 75