curl/lib/speedcheck.c

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/*****************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
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* Copyright (C) 2000, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* In order to be useful for every potential user, curl and libcurl are
* dual-licensed under the MPL and the MIT/X-derivate licenses.
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*
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* 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 MPL or the MIT/X-derivate
* licenses. You may pick one of these licenses.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
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*
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* $Id$
*****************************************************************************/
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#include "setup.h"
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#include <stdio.h>
#if defined(__MINGW32__)
#include <winsock.h>
#endif
#include <curl/curl.h>
#include "urldata.h"
#include "sendf.h"
#include "speedcheck.h"
void Curl_speedinit(struct UrlData *data)
{
memset(&data->keeps_speed, 0, sizeof(struct timeval));
}
CURLcode Curl_speedcheck(struct UrlData *data,
struct timeval now)
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{
if((data->progress.current_speed >= 0) &&
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data->low_speed_time &&
(Curl_tvlong(data->keeps_speed) != 0) &&
(data->progress.current_speed < data->low_speed_limit)) {
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/* 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( Curl_tvdiff(now, data->keeps_speed) > data->low_speed_time) {
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/* we have been this slow for long enough, now die */
failf(data,
"Operation too slow. "
"Less than %d bytes/sec transfered the last %d seconds",
data->low_speed_limit,
data->low_speed_time);
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return CURLE_OPERATION_TIMEOUTED;
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}
}
else {
/* we keep up the required speed all right */
data->keeps_speed = now;
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}
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return CURLE_OK;
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}