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|
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, 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 https://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 "urldata.h"
#include "sendf.h"
#include "multiif.h"
#include "progress.h"
#include "curl_printf.h"
/* check rate limits within this many recent milliseconds, at minimum. */
#define MIN_RATE_LIMIT_PERIOD 3000
#ifndef CURL_DISABLE_PROGRESS_METER
/* Provide a string that is 2 + 1 + 2 + 1 + 2 = 8 letters long (plus the zero
byte) */
static void time2str(char *r, curl_off_t seconds)
{
curl_off_t h;
if(seconds <= 0) {
strcpy(r, "--:--:--");
return;
}
h = seconds / CURL_OFF_T_C(3600);
if(h <= CURL_OFF_T_C(99)) {
curl_off_t m = (seconds - (h*CURL_OFF_T_C(3600))) / CURL_OFF_T_C(60);
curl_off_t s = (seconds - (h*CURL_OFF_T_C(3600))) - (m*CURL_OFF_T_C(60));
msnprintf(r, 9, "%2" CURL_FORMAT_CURL_OFF_T ":%02" CURL_FORMAT_CURL_OFF_T
":%02" CURL_FORMAT_CURL_OFF_T, h, m, s);
}
else {
/* this equals to more than 99 hours, switch to a more suitable output
format to fit within the limits. */
curl_off_t d = seconds / CURL_OFF_T_C(86400);
h = (seconds - (d*CURL_OFF_T_C(86400))) / CURL_OFF_T_C(3600);
if(d <= CURL_OFF_T_C(999))
msnprintf(r, 9, "%3" CURL_FORMAT_CURL_OFF_T
"d %02" CURL_FORMAT_CURL_OFF_T "h", d, h);
else
msnprintf(r, 9, "%7" CURL_FORMAT_CURL_OFF_T "d", d);
}
}
/* The point of this function would be to return a string of the input data,
but never longer than 5 columns (+ one zero byte).
Add suffix k, M, G when suitable... */
static char *max5data(curl_off_t bytes, char *max5)
{
#define ONE_KILOBYTE CURL_OFF_T_C(1024)
#define ONE_MEGABYTE (CURL_OFF_T_C(1024) * ONE_KILOBYTE)
#define ONE_GIGABYTE (CURL_OFF_T_C(1024) * ONE_MEGABYTE)
#define ONE_TERABYTE (CURL_OFF_T_C(1024) * ONE_GIGABYTE)
#define ONE_PETABYTE (CURL_OFF_T_C(1024) * ONE_TERABYTE)
if(bytes < CURL_OFF_T_C(100000))
msnprintf(max5, 6, "%5" CURL_FORMAT_CURL_OFF_T, bytes);
else if(bytes < CURL_OFF_T_C(10000) * ONE_KILOBYTE)
msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "k", bytes/ONE_KILOBYTE);
else if(bytes < CURL_OFF_T_C(100) * ONE_MEGABYTE)
/* 'XX.XM' is good as long as we're less than 100 megs */
msnprintf(max5, 6, "%2" CURL_FORMAT_CURL_OFF_T ".%0"
CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE,
(bytes%ONE_MEGABYTE) / (ONE_MEGABYTE/CURL_OFF_T_C(10)) );
#if (CURL_SIZEOF_CURL_OFF_T > 4)
else if(bytes < CURL_OFF_T_C(10000) * ONE_MEGABYTE)
/* 'XXXXM' is good until we're at 10000MB or above */
msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE);
else if(bytes < CURL_OFF_T_C(100) * ONE_GIGABYTE)
/* 10000 MB - 100 GB, we show it as XX.XG */
msnprintf(max5, 6, "%2" CURL_FORMAT_CURL_OFF_T ".%0"
CURL_FORMAT_CURL_OFF_T "G", bytes/ONE_GIGABYTE,
(bytes%ONE_GIGABYTE) / (ONE_GIGABYTE/CURL_OFF_T_C(10)) );
else if(bytes < CURL_OFF_T_C(10000) * ONE_GIGABYTE)
/* up to 10000GB, display without decimal: XXXXG */
msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "G", bytes/ONE_GIGABYTE);
else if(bytes < CURL_OFF_T_C(10000) * ONE_TERABYTE)
/* up to 10000TB, display without decimal: XXXXT */
msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "T", bytes/ONE_TERABYTE);
else
/* up to 10000PB, display without decimal: XXXXP */
msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "P", bytes/ONE_PETABYTE);
/* 16384 petabytes (16 exabytes) is the maximum a 64 bit unsigned number
can hold, but our data type is signed so 8192PB will be the maximum. */
#else
else
msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE);
#endif
return max5;
}
#endif
/*
New proposed interface, 9th of February 2000:
pgrsStartNow() - sets start time
pgrsSetDownloadSize(x) - known expected download size
pgrsSetUploadSize(x) - known expected upload size
pgrsSetDownloadCounter() - amount of data currently downloaded
pgrsSetUploadCounter() - amount of data currently uploaded
pgrsUpdate() - show progress
pgrsDone() - transfer complete
*/
int Curl_pgrsDone(struct connectdata *conn)
{
int rc;
struct Curl_easy *data = conn->data;
data->progress.lastshow = 0;
rc = Curl_pgrsUpdate(conn); /* the final (forced) update */
if(rc)
return rc;
if(!(data->progress.flags & PGRS_HIDE) &&
!data->progress.callback)
/* only output if we don't use a progress callback and we're not
* hidden */
fprintf(data->set.err, "\n");
data->progress.speeder_c = 0; /* reset the progress meter display */
return 0;
}
/* reset the known transfer sizes */
void Curl_pgrsResetTransferSizes(struct Curl_easy *data)
{
Curl_pgrsSetDownloadSize(data, -1);
Curl_pgrsSetUploadSize(data, -1);
}
/*
* @unittest: 1399
*/
void Curl_pgrsTime(struct Curl_easy *data, timerid timer)
{
struct curltime now = Curl_now();
time_t *delta = NULL;
switch(timer) {
default:
case TIMER_NONE:
/* mistake filter */
break;
case TIMER_STARTOP:
/* This is set at the start of a transfer */
data->progress.t_startop = now;
break;
case TIMER_STARTSINGLE:
/* This is set at the start of each single fetch */
data->progress.t_startsingle = now;
data->progress.is_t_startransfer_set = false;
break;
case TIMER_STARTACCEPT:
data->progress.t_acceptdata = now;
break;
case TIMER_NAMELOOKUP:
delta = &data->progress.t_nslookup;
break;
case TIMER_CONNECT:
delta = &data->progress.t_connect;
break;
case TIMER_APPCONNECT:
delta = &data->progress.t_appconnect;
break;
case TIMER_PRETRANSFER:
delta = &data->progress.t_pretransfer;
break;
case TIMER_STARTTRANSFER:
delta = &data->progress.t_starttransfer;
/* prevent updating t_starttransfer unless:
* 1) this is the first time we're setting t_starttransfer
* 2) a redirect has occurred since the last time t_starttransfer was set
* This prevents repeated invocations of the function from incorrectly
* changing the t_starttransfer time.
*/
if(data->progress.is_t_startransfer_set) {
return;
}
else {
data->progress.is_t_startransfer_set = true;
break;
}
case TIMER_POSTRANSFER:
/* this is the normal end-of-transfer thing */
break;
case TIMER_REDIRECT:
data->progress.t_redirect = Curl_timediff_us(now, data->progress.start);
break;
}
if(delta) {
timediff_t us = Curl_timediff_us(now, data->progress.t_startsingle);
if(us < 1)
us = 1; /* make sure at least one microsecond passed */
*delta += us;
}
}
void Curl_pgrsStartNow(struct Curl_easy *data)
{
data->progress.speeder_c = 0; /* reset the progress meter display */
data->progress.start = Curl_now();
data->progress.is_t_startransfer_set = false;
data->progress.ul_limit_start.tv_sec = 0;
data->progress.ul_limit_start.tv_usec = 0;
data->progress.dl_limit_start.tv_sec = 0;
data->progress.dl_limit_start.tv_usec = 0;
data->progress.downloaded = 0;
data->progress.uploaded = 0;
/* clear all bits except HIDE and HEADERS_OUT */
data->progress.flags &= PGRS_HIDE|PGRS_HEADERS_OUT;
Curl_ratelimit(data, data->progress.start);
}
/*
* This is used to handle speed limits, calculating how many milliseconds to
* wait until we're back under the speed limit, if needed.
*
* The way it works is by having a "starting point" (time & amount of data
* transferred by then) used in the speed computation, to be used instead of
* the start of the transfer. This starting point is regularly moved as
* transfer goes on, to keep getting accurate values (instead of average over
* the entire transfer).
*
* This function takes the current amount of data transferred, the amount at
* the starting point, the limit (in bytes/s), the time of the starting point
* and the current time.
*
* Returns 0 if no waiting is needed or when no waiting is needed but the
* starting point should be reset (to current); or the number of milliseconds
* to wait to get back under the speed limit.
*/
timediff_t Curl_pgrsLimitWaitTime(curl_off_t cursize,
curl_off_t startsize,
curl_off_t limit,
struct curltime start,
struct curltime now)
{
curl_off_t size = cursize - startsize;
time_t minimum;
time_t actual;
if(!limit || !size)
return 0;
/*
* 'minimum' is the number of milliseconds 'size' should take to download to
* stay below 'limit'.
*/
if(size < CURL_OFF_T_MAX/1000)
minimum = (time_t) (CURL_OFF_T_C(1000) * size / limit);
else {
minimum = (time_t) (size / limit);
if(minimum < TIME_T_MAX/1000)
minimum *= 1000;
else
minimum = TIME_T_MAX;
}
/*
* 'actual' is the time in milliseconds it took to actually download the
* last 'size' bytes.
*/
actual = Curl_timediff(now, start);
if(actual < minimum) {
/* if it downloaded the data faster than the limit, make it wait the
difference */
return (minimum - actual);
}
return 0;
}
/*
* Set the number of downloaded bytes so far.
*/
void Curl_pgrsSetDownloadCounter(struct Curl_easy *data, curl_off_t size)
{
data->progress.downloaded = size;
}
/*
* Update the timestamp and sizestamp to use for rate limit calculations.
*/
void Curl_ratelimit(struct Curl_easy *data, struct curltime now)
{
/* don't set a new stamp unless the time since last update is long enough */
if(data->set.max_recv_speed > 0) {
if(Curl_timediff(now, data->progress.dl_limit_start) >=
MIN_RATE_LIMIT_PERIOD) {
data->progress.dl_limit_start = now;
data->progress.dl_limit_size = data->progress.downloaded;
}
}
if(data->set.max_send_speed > 0) {
if(Curl_timediff(now, data->progress.ul_limit_start) >=
MIN_RATE_LIMIT_PERIOD) {
data->progress.ul_limit_start = now;
data->progress.ul_limit_size = data->progress.uploaded;
}
}
}
/*
* Set the number of uploaded bytes so far.
*/
void Curl_pgrsSetUploadCounter(struct Curl_easy *data, curl_off_t size)
{
data->progress.uploaded = size;
}
void Curl_pgrsSetDownloadSize(struct Curl_easy *data, curl_off_t size)
{
if(size >= 0) {
data->progress.size_dl = size;
data->progress.flags |= PGRS_DL_SIZE_KNOWN;
}
else {
data->progress.size_dl = 0;
data->progress.flags &= ~PGRS_DL_SIZE_KNOWN;
}
}
void Curl_pgrsSetUploadSize(struct Curl_easy *data, curl_off_t size)
{
if(size >= 0) {
data->progress.size_ul = size;
data->progress.flags |= PGRS_UL_SIZE_KNOWN;
}
else {
data->progress.size_ul = 0;
data->progress.flags &= ~PGRS_UL_SIZE_KNOWN;
}
}
/* returns TRUE if it's time to show the progress meter */
static bool progress_calc(struct connectdata *conn, struct curltime now)
{
curl_off_t timespent;
curl_off_t timespent_ms; /* milliseconds */
struct Curl_easy *data = conn->data;
curl_off_t dl = data->progress.downloaded;
curl_off_t ul = data->progress.uploaded;
bool timetoshow = FALSE;
/* The time spent so far (from the start) */
data->progress.timespent = Curl_timediff_us(now, data->progress.start);
timespent = (curl_off_t)data->progress.timespent/1000000; /* seconds */
timespent_ms = (curl_off_t)data->progress.timespent/1000; /* ms */
/* The average download speed this far */
if(dl < CURL_OFF_T_MAX/1000)
data->progress.dlspeed = (dl * 1000 / (timespent_ms>0?timespent_ms:1));
else
data->progress.dlspeed = (dl / (timespent>0?timespent:1));
/* The average upload speed this far */
if(ul < CURL_OFF_T_MAX/1000)
data->progress.ulspeed = (ul * 1000 / (timespent_ms>0?timespent_ms:1));
else
data->progress.ulspeed = (ul / (timespent>0?timespent:1));
/* Calculations done at most once a second, unless end is reached */
if(data->progress.lastshow != now.tv_sec) {
int countindex; /* amount of seconds stored in the speeder array */
int nowindex = data->progress.speeder_c% CURR_TIME;
data->progress.lastshow = now.tv_sec;
timetoshow = TRUE;
/* Let's do the "current speed" thing, with the dl + ul speeds
combined. Store the speed at entry 'nowindex'. */
data->progress.speeder[ nowindex ] =
data->progress.downloaded + data->progress.uploaded;
/* remember the exact time for this moment */
data->progress.speeder_time [ nowindex ] = now;
/* advance our speeder_c counter, which is increased every time we get
here and we expect it to never wrap as 2^32 is a lot of seconds! */
data->progress.speeder_c++;
/* figure out how many index entries of data we have stored in our speeder
array. With N_ENTRIES filled in, we have about N_ENTRIES-1 seconds of
transfer. Imagine, after one second we have filled in two entries,
after two seconds we've filled in three entries etc. */
countindex = ((data->progress.speeder_c >= CURR_TIME)?
CURR_TIME:data->progress.speeder_c) - 1;
/* first of all, we don't do this if there's no counted seconds yet */
if(countindex) {
int checkindex;
timediff_t span_ms;
/* Get the index position to compare with the 'nowindex' position.
Get the oldest entry possible. While we have less than CURR_TIME
entries, the first entry will remain the oldest. */
checkindex = (data->progress.speeder_c >= CURR_TIME)?
data->progress.speeder_c%CURR_TIME:0;
/* Figure out the exact time for the time span */
span_ms = Curl_timediff(now, data->progress.speeder_time[checkindex]);
if(0 == span_ms)
span_ms = 1; /* at least one millisecond MUST have passed */
/* Calculate the average speed the last 'span_ms' milliseconds */
{
curl_off_t amount = data->progress.speeder[nowindex]-
data->progress.speeder[checkindex];
if(amount > CURL_OFF_T_C(4294967) /* 0xffffffff/1000 */)
/* the 'amount' value is bigger than would fit in 32 bits if
multiplied with 1000, so we use the double math for this */
data->progress.current_speed = (curl_off_t)
((double)amount/((double)span_ms/1000.0));
else
/* the 'amount' value is small enough to fit within 32 bits even
when multiplied with 1000 */
data->progress.current_speed = amount*CURL_OFF_T_C(1000)/span_ms;
}
}
else
/* the first second we use the average */
data->progress.current_speed =
data->progress.ulspeed + data->progress.dlspeed;
} /* Calculations end */
return timetoshow;
}
#ifndef CURL_DISABLE_PROGRESS_METER
static void progress_meter(struct connectdata *conn)
{
struct Curl_easy *data = conn->data;
char max5[6][10];
curl_off_t dlpercen = 0;
curl_off_t ulpercen = 0;
curl_off_t total_percen = 0;
curl_off_t total_transfer;
curl_off_t total_expected_transfer;
char time_left[10];
char time_total[10];
char time_spent[10];
curl_off_t ulestimate = 0;
curl_off_t dlestimate = 0;
curl_off_t total_estimate;
curl_off_t timespent =
(curl_off_t)data->progress.timespent/1000000; /* seconds */
if(!(data->progress.flags & PGRS_HEADERS_OUT)) {
if(data->state.resume_from) {
fprintf(data->set.err,
"** Resuming transfer from byte position %"
CURL_FORMAT_CURL_OFF_T "\n", data->state.resume_from);
}
fprintf(data->set.err,
" %% Total %% Received %% Xferd Average Speed "
"Time Time Time Current\n"
" Dload Upload "
"Total Spent Left Speed\n");
data->progress.flags |= PGRS_HEADERS_OUT; /* headers are shown */
}
/* Figure out the estimated time of arrival for the upload */
if((data->progress.flags & PGRS_UL_SIZE_KNOWN) &&
(data->progress.ulspeed > CURL_OFF_T_C(0))) {
ulestimate = data->progress.size_ul / data->progress.ulspeed;
if(data->progress.size_ul > CURL_OFF_T_C(10000))
ulpercen = data->progress.uploaded /
(data->progress.size_ul/CURL_OFF_T_C(100));
else if(data->progress.size_ul > CURL_OFF_T_C(0))
ulpercen = (data->progress.uploaded*100) /
data->progress.size_ul;
}
/* ... and the download */
if((data->progress.flags & PGRS_DL_SIZE_KNOWN) &&
(data->progress.dlspeed > CURL_OFF_T_C(0))) {
dlestimate = data->progress.size_dl / data->progress.dlspeed;
if(data->progress.size_dl > CURL_OFF_T_C(10000))
dlpercen = data->progress.downloaded /
(data->progress.size_dl/CURL_OFF_T_C(100));
else if(data->progress.size_dl > CURL_OFF_T_C(0))
dlpercen = (data->progress.downloaded*100) /
data->progress.size_dl;
}
/* Now figure out which of them is slower and use that one for the
total estimate! */
total_estimate = ulestimate>dlestimate?ulestimate:dlestimate;
/* create the three time strings */
time2str(time_left, total_estimate > 0?(total_estimate - timespent):0);
time2str(time_total, total_estimate);
time2str(time_spent, timespent);
/* Get the total amount of data expected to get transferred */
total_expected_transfer =
((data->progress.flags & PGRS_UL_SIZE_KNOWN)?
data->progress.size_ul:data->progress.uploaded)+
((data->progress.flags & PGRS_DL_SIZE_KNOWN)?
data->progress.size_dl:data->progress.downloaded);
/* We have transferred this much so far */
total_transfer = data->progress.downloaded + data->progress.uploaded;
/* Get the percentage of data transferred so far */
if(total_expected_transfer > CURL_OFF_T_C(10000))
total_percen = total_transfer /
(total_expected_transfer/CURL_OFF_T_C(100));
else if(total_expected_transfer > CURL_OFF_T_C(0))
total_percen = (total_transfer*100) / total_expected_transfer;
fprintf(data->set.err,
"\r"
"%3" CURL_FORMAT_CURL_OFF_T " %s "
"%3" CURL_FORMAT_CURL_OFF_T " %s "
"%3" CURL_FORMAT_CURL_OFF_T " %s %s %s %s %s %s %s",
total_percen, /* 3 letters */ /* total % */
max5data(total_expected_transfer, max5[2]), /* total size */
dlpercen, /* 3 letters */ /* rcvd % */
max5data(data->progress.downloaded, max5[0]), /* rcvd size */
ulpercen, /* 3 letters */ /* xfer % */
max5data(data->progress.uploaded, max5[1]), /* xfer size */
max5data(data->progress.dlspeed, max5[3]), /* avrg dl speed */
max5data(data->progress.ulspeed, max5[4]), /* avrg ul speed */
time_total, /* 8 letters */ /* total time */
time_spent, /* 8 letters */ /* time spent */
time_left, /* 8 letters */ /* time left */
max5data(data->progress.current_speed, max5[5])
);
/* we flush the output stream to make it appear as soon as possible */
fflush(data->set.err);
}
#else
/* progress bar disabled */
#define progress_meter(x) Curl_nop_stmt
#endif
/*
* Curl_pgrsUpdate() returns 0 for success or the value returned by the
* progress callback!
*/
int Curl_pgrsUpdate(struct connectdata *conn)
{
struct Curl_easy *data = conn->data;
struct curltime now = Curl_now(); /* what time is it */
bool showprogress = progress_calc(conn, now);
if(!(data->progress.flags & PGRS_HIDE)) {
if(data->set.fxferinfo) {
int result;
/* There's a callback set, call that */
Curl_set_in_callback(data, true);
result = data->set.fxferinfo(data->set.progress_client,
data->progress.size_dl,
data->progress.downloaded,
data->progress.size_ul,
data->progress.uploaded);
Curl_set_in_callback(data, false);
if(result)
failf(data, "Callback aborted");
return result;
}
if(data->set.fprogress) {
int result;
/* The older deprecated callback is set, call that */
Curl_set_in_callback(data, true);
result = data->set.fprogress(data->set.progress_client,
(double)data->progress.size_dl,
(double)data->progress.downloaded,
(double)data->progress.size_ul,
(double)data->progress.uploaded);
Curl_set_in_callback(data, false);
if(result)
failf(data, "Callback aborted");
return result;
}
if(showprogress)
progress_meter(conn);
}
return 0;
}
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