As of 2020-08-01, OpenBSD's system zlib is 1.2.3 which doesn't
have gzoffset(). However we can get away with this by making
gzfilebuf::approxOffset() always return zero.
Avoid a central hash cache becoming enormous, now we use the selective
download scheme for the tile dirs.
Hash name is changed to co-exist with older versions.
Use the top-level dirIndex files to determine if a 1x1 tile dir
exists, instead of proving the server via a 404. This reduces the
number of requests we make considerably, which is … important.
Add a process() method to HTTPRepository, and use this to
incrementally validate subdirs after the .dirIndex is received. This
avoids large pauses of the TerraSync thread, when all of Airports/
is validated at once.
When doing a catalog migration to a new ID (eg, 2018 -> 2020), also
mark the installed packages for installation, on the new catalog.
Related to this, when manually removing a catalog, record this fact,
so we don’t re-add it automatically due to migration.
Add unit-tests covering both of these cases.
Trying to fix a reported crash, in this code. malloc() returning null
seems unlikely but worth checking for. ALso use a unique_ptr with
a custom deleter to avoid a leak if we throw.
Sentry-Id: FLIGHTGEAR-3Y
If TerraSync/Airports is missing, download Airport_archive.tgz instead.
In all other cases update as normal. This has the effect, that fresh
installs make many fewer requests to TerraSync servers.
Re-add (with some tweaks) the persistent tile-cache code, so that
TerraSync checks the server at most once per 24 hour period, for a
given repository path.
(Disbale the cache by setting /sim/terrasync/enable-persistent-cache=0)
Avoids need to specify the 3rd-party dir, in the standard/fgmeta
layout of source directories, and accept more combinations of path,
when the user specifies a value.
Previous additional checks for a value BUILDING_LIST entry
used an enum incorrectly, resulting in all BUILDING_LIST entries
failing. Now fixed to check bad() / fail() which are bool.
New log-level to avoid using ‘ALERT’ for expected mandatory messages,
since I want to do error collection on real alerts in a future commit.
As part of this, split logstream.hxx into separate header files, and
add a new virtual hook to LogCallback which takes the complete log-entry
Ensure that if we copy file-names of log entries while startup
logging is active, we free them, but only once startup logging is
disabled, or on shutdown. This is needed to avoid crashes when
we use file-name copying for the Qt message handler.
Caching it complicates add/remove command logic, so making a simple
fix for now, which can be back-ported to 2020.2; ideally we would
cache the pointer but have an invalidation scheme, but that’s
considerably more work and risk.
Relates to Sentry crash:
https://sentry.io/organizations/flightgear/issues/1858764364
