This fixes tons of warnings with clang from a recent xcode version on
macOS (and possibly other systems) complaining that an instantiation
of _singleton is required but no definition is available.
The cloud manager registers itself as an event source as a mean to be polled
periodically by the GUI or engine code. The periodical polling is used to
update the OSD icon indicating background sync activity.
Also move the cloud icon from ConnectionManager to CloudManager,
allowing to decouple icon handling from network connections updates.
Graphics::TransparentSurface::convertTo() errors out when the destination
format is not 2 or 4 Bpp. But in the case of the cloud icon we can recover
from it. So just print a warning and don't close the application.
Full version is used like in Eugene's Google Analytics stub. Plus, on
PS3 that string contains "PlayStation", and that would be cool to know
that ScummVM+libcurl+PS3 work together.
It now uses both CURLOPT_PROGRESSFUNCTION and CURLOPT_XFERINFOFUNCTION.
The latter is available in new libcurl (>= 7.32.0) only, thus the former
is added for older versions support.
The passed buffer is not changed, so could be `const`.
You might see that `postFields.c_str()` is `buffer`. Yet, as it's
`postFields`, it's used for POST in curl_easy_setopt(), which copies the
passed buffer. When `buffer` is used for upload, it's an actual bytes
buffer, kept in CurlRequest.
It now keeps newly added Requests in separate array, so iterators don't
break when one adds a Request while ConnMan iterates its array.
The array is also shielded with mutex.
CloudIcon is now a Request which is automatically added once first
Request is added to ConnMan. When icon decides it should disappear, it
gets FINISHED, so ConnMan would switch off the timer if it was the last
Request.
I didn't like how FINISHED Requests were waiting until the next
interateRequests() call to be removed when we could easily remove those
after they changed their state in their handle().
To achieve smoother animation, ConnectionManager's timer now is 20 times
more frequent.
I'm encountering some strange libcurl.dll segfault problem when I close
the application while some Requests are active. It's not
CloudIcon-related, so it's more likely related to this 20 FPS timer.
This problem shows up only in Visual Studio for me.
It has its own GoogleDriveTokenRefresher and knows how to do info().
This commit also contains JSON int -> long long int fix and
CurlJsonRequest '\n' -> ' ' fix.
