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callback.c : fallback to normal download with bogus size

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When using totaldownload, we might get into some weird situations where
xfered>total because of bogus CSIZE database entries.

This code adds a sanity check and fallbacks to normal download progress if
needed.

Here is an example using totaldownload on a database with wrong CSIZE, for a
total download of ~26 MB.

Before :

 gnome-desktop-2.28....  1144,3K  678,3K/s 00:00:02 [#################]   4%
 gnome-panel-2.28.0-...     4,2M  887,7K/s 00:00:05 [#################]  16%
 gnome-applets-2.28....    13,6M 1083,0K/s 00:00:13 [#################]  52%
 gnome-backgrounds-2...    22,9M  964,0K/s 00:00:24 [#################]  87%
 gnome-settings-daem...    23,6M  938,5K/s 00:00:26 [#################]  90%
 gnome-control-cente...    26,1M  946,1K/s 00:00:28 [#################] 100%
 gnome-icon-theme-2....    27,7M 1465,0K/s 1193046:28:15 [#######----------] gnome-icon-theme-2....    28,0M 1502,2K/s 1193046:28:15 [########---------] gnome-icon-theme-2....    28,4M 1582,2K/s 1193046:28:15 [##########-------] gnome-icon-theme-2....    28,7M 1603,4K/s 1193046:28:15 [############-----] gnome-icon-theme-2....    29,0M 1604,5K/s 1193046:28:15 [##############---] gnome-icon-theme-2....    29,3M 1621,0K/s 1193046:28:14 [################-] gnome-icon-theme-2....    29,6M 1434,8K/s 1193046:28:14 [#################] gnome-icon-theme-2....    29,6M  974,2K/s 00:00:31 [#################] 113%

After :

 gnome-desktop-2.28....  1144,3K 1038,7K/s 00:00:01 [#################]   4%
 gnome-panel-2.28.0-...     4,2M  988,4K/s 00:00:04 [#################]  16%
 gnome-applets-2.28....    13,6M 1190,4K/s 00:00:12 [#################]  52%
 gnome-backgrounds-2...    22,9M 1242,9K/s 00:00:19 [#################]  87%
 gnome-settings-daem...    23,6M 1193,9K/s 00:00:20 [#################]  90%
 gnome-control-cente...     2,5M 1347,4K/s 00:00:02 [#################] 100%
 gnome-icon-theme-2....     3,5M 1205,4K/s 00:00:03 [#################] 100%

Note that gnome-control-center resetted to normal progress mode
(2,5M is the package size, not the total size)

Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
This commit is contained in:
Xavier Chantry 2009-09-26 02:42:27 +02:00 committed by Dan McGee
parent 20392c0a02
commit 44a57c890b
1 changed files with 14 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
src/pacman/callback.c
View File

@ -439,7 +439,7 @@ void cb_dl_progress(const char *filename, off_t file_xfered, off_t file_total)
int len, wclen, wcwid, padwid;
wchar_t *wcfname;
int totaldownload;
int totaldownload = 0;
off_t xfered, total;
float rate = 0.0, timediff = 0.0, f_xfered = 0.0;
unsigned int eta_h = 0, eta_m = 0, eta_s = 0;
@ -456,9 +456,14 @@ void cb_dl_progress(const char *filename, off_t file_xfered, off_t file_total)
/* only use TotalDownload if enabled and we have a callback value */
if(config->totaldownload && list_total) {
totaldownload = 1;
} else {
totaldownload = 0;
/* sanity check */
if(list_xfered + file_total <= list_total) {
totaldownload = 1;
} else {
/* bogus values : don't enable totaldownload and reset */
list_xfered = 0;
list_total = 0;
}
}
if(totaldownload) {
@ -469,6 +474,11 @@ void cb_dl_progress(const char *filename, off_t file_xfered, off_t file_total)
total = file_total;
}
/* bogus values : stop here */
if(xfered > total) {
return;
}
/* this is basically a switch on xfered: 0, total, and
* anything else */
if(file_xfered == 0) {