If a merge mishap creates inconsistent data for a dive in git storage,
where the dive references a dive site that no longer exists, the app
would crash when trying to open the cloud storage.
I don't think a NULL dive could ever happen, but this seems fairly cheap
insurance.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
When editing a dive on mobile we might have to create a new
dive site. That site is added to the global dive site table
in the undo command. However, the code in QMLManager created
the dive site with create_dive_site*() functions, which already
adds it to the table. The undo command then added the dive
site again leading to a hang of the application.
To solve this problem, create new alloc_dive_site*()
functions that do the same as create_dive_site*()
but do not add it to the table.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
To allow efficient moving of downloaded dives from the download
thread to the model, implement a general move function that
moves table data. Instantiate that function for the dive and
dive_site tables.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
is_dive_site_used() had a "selected" parameter. If true it would
return whether the given dive site had a selected dive. Turns
out all callers had this parameter set to true. Therefore, replace
by a simplified function without the "selected" parameter and
give the function an appropriate name.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Fixed bug in the Haversine function in get_distance() based on algorithm
at https://www.movable-type.co.uk/scripts/latlong.html and added bounds
to the 'a' term to avoid floating point errors for antipodal points.
Signed-off-by: Doug Junkins <junkins@foghead.com>
Trips and dive sites were changed to use dive tables instead
of linked lists. But the memory used for the tables wasn't freed.
Do this.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Instead of using a random UUID, use an SHA1 hash of name, description
and notes (if defined). This is necessary for testing.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This one was rather trivial, as there is no actual merging
done. Quite simply, a number of dive sites are removed and
their dive added to a different dive site.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Introduce two DiveListNotifier signals which are sent by
the undo commands if dives are added to / removed from the
core.
The signal has the dive site and the index in the global
dive site table as payload. Thus, the model has only to
remove the appropriate rows.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Turn the table functions of the dive site handling into macros
as was already used for dives and dive trips. This has the effect
that the table is kept sorted by UUID.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
For consistency with remove_dive(). Moreover, swap parameter order
in remove_dive() so that both functions use the same parameter order.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Add a new signal to DiveListNotifier. Send signal if dives are
added or removed and therefore the dive count of a dive site
changes. The dive sites are collected and the signal is sent
at the end of the command.
Add code to update the table view.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
1) The second parameter (selected_only) was always false. Therefore,
remove it.
2) Simplify the function by simply returning the reference count.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Instead of setting dive->dive_site directly, call the
add_dive_to_dive_site() and unregister_dive_from_dive_site()
functions. In the parser this turned out to be a bit tricky.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Add a dive site table to each dive site to keep track of dives
that have been added to a dive site. Add two functions to add
dives to / remove dives from dive sites.
Since dive sites now contain a dive table, the order of includes
had to be changed: "divesite.h" now includes "dive.h" and not
vice-versa. This caused some include churn.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Since the UUID will be overwritten on save and is only used on save
and load, set it only on save or load. For other created dive sites,
leave the UUID field uninitialized.
This means that the UUID will change between saves. Let's see how
the git saver handles that.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
We absolutely want to avoid dive site with the same UUID.
But that could happen when reimporting a log where the
dive sites diverged.
Therefore, on adding a dive site to a table, change the UUID
if it already exists. Since dives are associated to dive
sites with pointers, this should have no negative impact.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The code used dive site uuids, which are not really used anymore.
The only caller of this function does certainly not use a copy,
so let's compare pointers instead.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
As opposed to dive trips, dive sites were always directly added
to the global table, even on import. Instead, parse the divesites
into a distinct table and merge them on import.
Currently, this does not do any merging of dive sites, i.e. dive
sites are considered as either equal or different. Nevertheless,
merging of data should be rather easy to implement and simply
follow the code of the dive merging.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
To enable undo of dive site functions, it is crucial to work
with different dive site tables. Therefore add a dive site table
parameter to dive site functions. For now, always pass the global
dive site table. Thus, this commit shouldn't alter any functionality.
After this change, a simple search for dive_site_table reveals all
places where the global dive site table is accessed.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This function was defined in divelist.c, whereas it's better located
in divesite.c. Move it.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Unused dive sites were deleted on save. This clashed with the undo
system in the following scenario:
1) Delete single-use dive site.
2) Save (dive site deleted)
3) Undo (reference to freed dive site)
Therefore, as a quick-fix, keep the referenced dive site around.
Note that this also means that empty dive sites must not be
deleted, as it might refer to a dive in the undo system. Instead
only clear references to empty dive sites in the global dive
table. Factor this functionality out, as it was common to the
XML and git savers.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Replace the UUID reference of struct dive by a pointer to dive_site.
This commit is rather large in lines, but nevertheless quite simple
since most of the UUID->pointer work was done in previous commits.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Instead of passing uuids, pass a pointer to the dive site.
This is small step in an effort to remove uuids.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Instead of passing a uuid, pass a pointer to the dive site.
This is small step in an effort to remove uuids.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Instead of passing a uuid, pass a pointer to the dive site.
This is small step in an effort to remove uuids.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Instead of passing a uuid, pass a pointer to the dive site.
This is small step in an effort to remove uuids.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This changes more of the dive-site interface to return pointers
instead of UUIDs. Currently, most call sites directly extract
UUIDs afterwards. Ultimately, the UUIDs will be generally replaced
by pointers, which will then simplify these callers.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
As a first step in removing dive-site uuids, change the interface
of the get_dive_site_*() functions to return pointers instead
of uuids. This makes code a bit more complicated in places where
the uuid is extracted afterwards (needed NULL check). Nevertheless,
these places should disappear once pointers instead of uuids are
stored in the dive-structures.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This is consistent with most other free_*() functions in the core
code and will make cleanup of parser state less verbose.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Instead of having people treat latitude and longitude as separate
things, just add a 'location_t' data structure that contains both.
Almost all cases want to always act on them together.
This is really just prep-work for adding a few more locations that we
track: I want to add a entry/exit location to each dive (independent of
the dive site) because of how the Garmin Descent gives us the
information (and hopefully, some day, other dive computers too).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dive site data was collected in "cur_dive_site", which was then
merged into an existing or a new dive site. But only the struct
dive_site pointed to by "cur_dive_site" and the taxonomy data
were freed, not the textual data such as name or description.
Therefore, split out the approrpriate free-ing from the
delete_dive_site() function and call that instead of a simple
free().
A similar situation occured for dives that would not be added
to the dive-table because they were deemed incomplete. Use
free_dive() here instead of a simple free() too.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
The dive-site-edit widget uses a copy of the to-be-edited site
to compare with old values. Generally, this seems overkill
(the original dive-site can be used for such a comparison).
But one place where it can't simply be removed is the taxonomy,
because the widget needs a place to store the unsaved data.
Change the code to use an explicit taxonomy structure instead
of the one provided in the copy. This should ultimately allow
removal of the latter.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
While we shouldn't have a dive that references a dive site that doesn't exist,
if we do, we shouldn't crash. And a dive site that doesn't exist is most
definitely 'empty'.
Reported-by: Benjamin Fogel <nystire@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
There are ca. 50 constructs of the kind
same_string(s, "")
to test for empty or null strings. Replace them by the new helper
function empty_string().
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
A simple one line change that solves (for me) numerous hard crashes
when adding geo tags by reverse lookup from the dive site edit
screen. This is one of those crashes that is might not be
reproducible on any platform, or even between different builds
on one platform.
This said, I found that the free() on line 99 of divesitehelpers.cpp
tried to free pointers to random data, ie. not pointing to valid
taxonomy category strings. And those pointers where simply caused by
freeing the string earlier, and leaving the pointer around. So, this
change is nothing more than setting the just freed pointer to NULL,
to allow free() to be called later safely.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
The return produces a warning about "strict-aliasing rules".
Use a union to fit the hash and the uint32_t into the same
block of memory, which obeys the GCC strict-aliasing rules.
Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
In hindsight a very simple bug to fix, but it requires some
knowledge on the inner workings of our git storage. The changes
on merge of dive sites were simply not saved (completely) because
the git storage code has a cache that we need to invalidate
selectively (ie. for the dive we just gave a new dive site uuid)
to get things finally embedded in the overall commit.
The main reason this bug went unnoticed for more than 2 years is
that most people use the XML/SSRF format (where this problem is
non exsistent), and dive site merging is probably not a very
much used feature either.
Fixes: #939
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
