mirror of
https://github.com/moparisthebest/curl
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cacdc27f52
Introducing Curl_expire_latest(). To be used when we the code flow only wants to get called at a later time that is "no later than X" so that something can be checked (and another timeout be added). The low-speed logic for example could easily be made to set very many expire timeouts if it would be called faster or sooner than what it had set its own timer and this goes for a few other timers too that aren't explictiy checked for timer expiration in the code. If there's no condition the code that says if(time-passed >= TIME), then Curl_expire_latest() is preferred to Curl_expire(). If there exists such a condition, it is on the other hand important that Curl_expire() is used and not the other. Bug: http://curl.haxx.se/mail/lib-2014-06/0235.html Reported-by: Florian Weimer
75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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***************************************************************************/
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#include "curl_setup.h"
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#include <curl/curl.h>
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#include "urldata.h"
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#include "sendf.h"
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#include "multiif.h"
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#include "speedcheck.h"
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void Curl_speedinit(struct SessionHandle *data)
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{
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memset(&data->state.keeps_speed, 0, sizeof(struct timeval));
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}
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CURLcode Curl_speedcheck(struct SessionHandle *data,
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struct timeval now)
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{
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if((data->progress.current_speed >= 0) &&
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data->set.low_speed_time &&
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(Curl_tvlong(data->state.keeps_speed) != 0) &&
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(data->progress.current_speed < data->set.low_speed_limit)) {
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long howlong = Curl_tvdiff(now, data->state.keeps_speed);
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long nextcheck = (data->set.low_speed_time * 1000) - howlong;
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/* We are now below the "low speed limit". If we are below it
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for "low speed time" seconds we consider that enough reason
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to abort the download. */
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if(nextcheck <= 0) {
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/* we have been this slow for long enough, now die */
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failf(data,
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"Operation too slow. "
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"Less than %ld bytes/sec transferred the last %ld seconds",
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data->set.low_speed_limit,
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data->set.low_speed_time);
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return CURLE_OPERATION_TIMEDOUT;
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}
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else {
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/* wait complete low_speed_time */
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Curl_expire_latest(data, nextcheck);
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}
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}
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else {
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/* we keep up the required speed all right */
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data->state.keeps_speed = now;
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if(data->set.low_speed_limit)
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/* if there is a low speed limit enabled, we set the expire timer to
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make this connection's speed get checked again no later than when
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this time is up */
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Curl_expire_latest(data, data->set.low_speed_time*1000);
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}
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return CURLE_OK;
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}
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