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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "curl_urldata.h"
#include "curl_sendf.h"
#include "curl_multiif.h"
#include "curl_speedcheck.h"
void Curl_speedinit(struct SessionHandle *data)
{
memset(&data->state.keeps_speed, 0, sizeof(struct timeval));
}
CURLcode Curl_speedcheck(struct SessionHandle *data,
struct timeval now)
{
if((data->progress.current_speed >= 0) &&
data->set.low_speed_time &&
(Curl_tvlong(data->state.keeps_speed) != 0) &&
(data->progress.current_speed < data->set.low_speed_limit)) {
long howlong = Curl_tvdiff(now, data->state.keeps_speed);
long nextcheck = (data->set.low_speed_time * 1000) - howlong;
/* We are now below the "low speed limit". If we are below it
for "low speed time" seconds we consider that enough reason
to abort the download. */
if(nextcheck <= 0) {
/* we have been this slow for long enough, now die */
failf(data,
"Operation too slow. "
"Less than %ld bytes/sec transferred the last %ld seconds",
data->set.low_speed_limit,
data->set.low_speed_time);
return CURLE_OPERATION_TIMEDOUT;
}
else {
/* wait complete low_speed_time */
Curl_expire(data, nextcheck);
}
}
else {
/* we keep up the required speed all right */
data->state.keeps_speed = now;
if(data->set.low_speed_limit)
/* if there is a low speed limit enabled, we set the expire timer to
make this connection's speed get checked again no later than when
this time is up */
Curl_expire(data, data->set.low_speed_time*1000);
}
return CURLE_OK;
}
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