There are a TON of explorations I did here, many may be unnecessary, but this is a stake in the ground.
The main issue was the strange queue logic in canconmanager::sendFrame which puts the tx data in the rx
queue so it will show up in the displayed data. It caused SIGABRT and SIGSEG to show up everywhere.
It is NOT fixed yet, but TX works over the wire you just can't see it in the tableview.
I thought at first it was only when overwrite data was active, so I put in a a pile of changes to keep
frames and filtered frames as two seperate copies of data where frames was always complete and filtered
was only what was seen in the mainwindow. It made it so the graphing window would work with overwrite
data active which is an improvement. I wouldn't roll these changes back. Because of these changes I
had to update the frame sorting code adjust the refresh function in canframemode.cpp
I also thought it was related to UI updates, but its not, that's been confirmed.
I put a mutex around the custom sender tick timer so that the 1ms timer wouldn't re-enter its callback.
This didn't fix the crash, but it sure seems to make a lot of sense, and the way I did it no elasped
time is lost for tracking purposes, and in reality theres no way 1ms was consistent anyway.
I put a mutex around the shrinking of frames and filteredframes to make sure we weren't deleting at
the same time as accessing, but honestly we acccess those lists in many places without semaphores so
that probably did nothing.
Fixed a bug in FrameSenderWindow:DoModifiers that was improperly parsing and sometimes crashing when
looking for the ~ operator before a symbol.
Also added some minor work to keep row expansion functioning when changing filters or sorting. Need
to make some tweaks so it stops trying so hard when overwrite is not active
Theres also code in main.c taht makes debugging output super verbose.
Committing now to start cleanup
Also switched from Sphinx generated HTML to GitHub markup help files.
This improves compatibility and will allow the help files to more easily be viewed on github as well.
- Add GMLAN 29bit filtering feature. In addition to J1939 matching, it is now possible to match DBC messages using only the Arbitration Id (bits 14-26 of CAN Address), since Priority id (higher bits) and Sender Id (lowest 13 bits) are not relevant when interpreting the CAN message content. This allows to use the excellent GM Global A DBC files on https://github.com/commaai/opendbc. Just remember to select the "GMLAN" matching criteria on DBC File manager.
- Add "Filter labeling" feature. Using loaded DBC files, it matches the filter Ids with DBC messages and shows them in filter windows. Labeling works in the main window (no need to set "Frame interpret" on, since this is a separate feature), as well as in Flow view, Frame data analysis, Playback and Fuzzzing windows. This makes it so much easier to concentrate on those CAN messages that matter. To use this feature, select global "Label filters using messages from DBC files" on Main Configuration page, and then enable the feature on individual DBC files (on DBC file manager) as needed. This is needed if there's overlap in CAN addresses between DBC files, and because the filter labeler cannot tell apart anymore which Filter ID is associated to which bus, it might label them incorrectly. But usually it's ok to just enable the labeling with all the DBC files.
- In Frame data analysis window, in addition to J1939 decoding show also GMLAN (Priority bits, Arbitration Id, Sender Id) decoding.
- FilterUtility static class used for centralized ListWidgetItem creation and for other helper functions
- DBC handler: To allow setting bus numbers even before connection is configured, do not enforce "valid" bus numbers
All frame file I/O uses the same directory load/save location but DBC files store separately as do filter files, graphing definitions, and stored text files from the various reverse engineering windows.
* improves window handling a lot
(on Linux GNOME 3 at least: quickly resizing windows left/right, not forced in foreground anymore etc.)
setWindowFlags() inserted in all *window.cpp files except mainwindow
* some whitespace at EOL trimmed
Andy Huska