1/***************************************************************************
2 *                                  _   _ ____  _
3 *  Project                     ___| | | |  _ \| |
4 *                             / __| | | | |_) | |
5 *                            | (__| |_| |  _ <| |___
6 *                             \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at http://curl.haxx.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ***************************************************************************/
22#include "tool_setup.h"
23
24#define ENABLE_CURLX_PRINTF
25/* use our own printf() functions */
26#include "curlx.h"
27
28#include "tool_cfgable.h"
29#include "tool_cb_prg.h"
30
31#include "memdebug.h" /* keep this as LAST include */
32
33/*
34** callback for CURLOPT_PROGRESSFUNCTION
35*/
36
37#define MAX_BARLENGTH 256
38
39int tool_progress_cb(void *clientp,
40                     double dltotal, double dlnow,
41                     double ultotal, double ulnow)
42{
43  /* The original progress-bar source code was written for curl by Lars Aas,
44     and this new edition inherits some of his concepts. */
45
46  char line[MAX_BARLENGTH+1];
47  char format[40];
48  double frac;
49  double percent;
50  int barwidth;
51  int num;
52  int i;
53
54  struct ProgressData *bar = (struct ProgressData *)clientp;
55
56  /* expected transfer size */
57  curl_off_t total = (curl_off_t)dltotal + (curl_off_t)ultotal +
58    bar->initial_size;
59
60  /* we've come this far */
61  curl_off_t point = (curl_off_t)dlnow + (curl_off_t)ulnow +
62    bar->initial_size;
63
64  if(point > total)
65    /* we have got more than the expected total! */
66    total = point;
67
68  /* simply count invokes */
69  bar->calls++;
70
71  if(total < 1) {
72    curl_off_t prevblock = bar->prev / 1024;
73    curl_off_t thisblock = point / 1024;
74    while(thisblock > prevblock) {
75      fprintf(bar->out, "#");
76      prevblock++;
77    }
78  }
79  else if(point != bar->prev) {
80    frac = (double)point / (double)total;
81    percent = frac * 100.0f;
82    barwidth = bar->width - 7;
83    num = (int) (((double)barwidth) * frac);
84    if(num > MAX_BARLENGTH)
85      num = MAX_BARLENGTH;
86    for(i = 0; i < num; i++)
87      line[i] = '#';
88    line[i] = '\0';
89    snprintf(format, sizeof(format), "\r%%-%ds %%5.1f%%%%", barwidth);
90    fprintf(bar->out, format, line, percent);
91  }
92  fflush(bar->out);
93  bar->prev = point;
94
95  return 0;
96}
97
98void progressbarinit(struct ProgressData *bar,
99                     struct Configurable *config)
100{
101#ifdef __EMX__
102  /* 20000318 mgs */
103  int scr_size[2];
104#endif
105  char *colp;
106
107  memset(bar, 0, sizeof(struct ProgressData));
108
109  /* pass this through to progress function so
110   * it can display progress towards total file
111   * not just the part that's left. (21-may-03, dbyron) */
112  if(config->use_resume)
113    bar->initial_size = config->resume_from;
114
115/* TODO: get terminal width through ansi escapes or something similar.
116   try to update width when xterm is resized... - 19990617 larsa */
117#ifndef __EMX__
118  /* 20000318 mgs
119   * OS/2 users most likely won't have this env var set, and besides that
120   * we're using our own way to determine screen width */
121  colp = curlx_getenv("COLUMNS");
122  if(colp) {
123    char *endptr;
124    long num = strtol(colp, &endptr, 10);
125    if((endptr != colp) && (endptr == colp + strlen(colp)) && (num > 0))
126      bar->width = (int)num;
127    else
128      bar->width = 79;
129    curl_free(colp);
130  }
131  else
132    bar->width = 79;
133#else
134  /* 20000318 mgs
135   * We use this emx library call to get the screen width, and subtract
136   * one from what we got in order to avoid a problem with the cursor
137   * advancing to the next line if we print a string that is as long as
138   * the screen is wide. */
139
140  _scrsize(scr_size);
141  bar->width = scr_size[0] - 1;
142#endif
143
144  bar->out = config->errors;
145}
146
147