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random() is POSIX and seems to be missing in MINGW.
it can return a 64bit (if 'long' is 64bit) but
given ID's are 32bit rand() should suffice.
also random() is technically a better algorithm but for
cryptographically unsafe usage like generating IDs the
stdlib's LCPRNG rand() should siffuce.
also this patch makes it so that a true 32bit random value
is returned. how random it is, is another topic.
Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
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No point in keeping those.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
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We need to be able to get rid of dive sites as well.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
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Fix broken helper function, move helper functions into the .c file (there
really wasn't a good reason for these to be inline), fix the logic that
decides if we want to create a new dive site or use an existing one.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
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While the existing code worked with a couple of hand crafted examples it
turns out it did a poor job with most of my files. Oops.
Depending on whether we find name or coordinates first, we need to
identify existing sites in either case and do the right thing.
The challeng here are multiple dives at the same site with slightly
different GPS coordinates. If the name is read first, these all get merged
into one (and we warn about the different GPS data). But if GPS gets read
first, we create separate dive sites with the same name.
We need a sane UI to consolidate these - but we can't completely automate
this... it's possible that these ARE the same site and the GPS data is
just imprecise (for example, multiple dives at the same time with GPS
locations from the Subsurface companion app). The user should be able to
either pick one of the GPS locations, or keep multiple (for example,
different buoyes for the same site and you want to keep the different
markers).
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
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Clearly didn't test that part well enough.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
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If you want a specific one, you can always overwrite it, but a dive site
with a uuid of 0 breaks some of our assumptions.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
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Sometimes we want to create a dive site just based on a name, sometimes we
have both a name and GPS coordinates. Let's make a helper for either case.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
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Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
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This leaves location and gps coordinates in the struct dive to allow a
step by step migration.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
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Lubomir I. Ivanov
Dirk Hohndel