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https://github.com/moparisthebest/curl
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4b86113f5e
Speed limits (from CURLOPT_MAX_RECV_SPEED_LARGE & CURLOPT_MAX_SEND_SPEED_LARGE) were applied simply by comparing limits with the cumulative average speed of the entire transfer; While this might work at times with good/constant connections, in other cases it can result to the limits simply being "ignored" for more than "short bursts" (as told in man page). Consider a download that goes on much slower than the limit for some time (because bandwidth is used elsewhere, server is slow, whatever the reason), then once things get better, curl would simply ignore the limit up until the average speed (since the beginning of the transfer) reached the limit. This could prove the limit useless to effectively avoid using the entire bandwidth (at least for quite some time). So instead, we now use a "moving starting point" as reference, and every time at least as much as the limit as been transferred, we can reset this starting point to the current position. This gets a good limiting effect that applies to the "current speed" with instant reactivity (in case of sudden speed burst). Closes #971
78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
#ifndef HEADER_CURL_PROGRESS_H
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#define HEADER_CURL_PROGRESS_H
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/***************************************************************************
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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 https://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 "timeval.h"
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typedef enum {
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TIMER_NONE,
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TIMER_STARTOP,
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TIMER_STARTSINGLE,
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TIMER_NAMELOOKUP,
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TIMER_CONNECT,
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TIMER_APPCONNECT,
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TIMER_PRETRANSFER,
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TIMER_STARTTRANSFER,
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TIMER_POSTRANSFER,
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TIMER_STARTACCEPT,
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TIMER_REDIRECT,
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TIMER_LAST /* must be last */
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} timerid;
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int Curl_pgrsDone(struct connectdata *);
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void Curl_pgrsStartNow(struct Curl_easy *data);
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void Curl_pgrsSetDownloadSize(struct Curl_easy *data, curl_off_t size);
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void Curl_pgrsSetUploadSize(struct Curl_easy *data, curl_off_t size);
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void Curl_pgrsSetDownloadCounter(struct Curl_easy *data, curl_off_t size);
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void Curl_pgrsSetUploadCounter(struct Curl_easy *data, curl_off_t size);
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int Curl_pgrsUpdate(struct connectdata *);
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void Curl_pgrsResetTimesSizes(struct Curl_easy *data);
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void Curl_pgrsTime(struct Curl_easy *data, timerid timer);
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long Curl_pgrsLimitWaitTime(curl_off_t cursize,
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curl_off_t startsize,
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curl_off_t limit,
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struct timeval start,
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struct timeval now);
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/* Don't show progress for sizes smaller than: */
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#define LEAST_SIZE_PROGRESS BUFSIZE
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#define PROGRESS_DOWNLOAD (1<<0)
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#define PROGRESS_UPLOAD (1<<1)
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#define PROGRESS_DOWN_AND_UP (PROGRESS_UPLOAD | PROGRESS_DOWNLOAD)
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#define PGRS_SHOW_DL (1<<0)
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#define PGRS_SHOW_UL (1<<1)
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#define PGRS_DONE_DL (1<<2)
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#define PGRS_DONE_UL (1<<3)
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#define PGRS_HIDE (1<<4)
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#define PGRS_UL_SIZE_KNOWN (1<<5)
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#define PGRS_DL_SIZE_KNOWN (1<<6)
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#define PGRS_HEADERS_OUT (1<<7) /* set when the headers have been written */
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#endif /* HEADER_CURL_PROGRESS_H */
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