Android has a broken CLOCK_MONOTONIC_RAW about curl HOT 9 OPEN

The patch detects if clock_gettime(CLOCK_MONOTONIC_RAW, ...) is supported and uses it if it is. It can mean two things: The detection is wrong, or, despite the correct detection, the feature is unusable on that platform.

What happens if you build with autotools? Is the feature checking for raw monotonic clock_gettime detected? Does curl hang/timeout there?

Meanwhile with CMake you can force-disable this with the option:
-DHAVE_CLOCK_GETTIME_MONOTONIC_RAW=OFF

from curl.

Thank you. Disabling HAVE_CLOCK_GETTIME_MONOTONIC_RAW fixes the issue.
The program works stably on new versions of Android, and the same apk does not work on older ones.
I believe that this option is enabled when building the apk, but the same apk does not work on older versions of Android.

I think for the Android platform this option should be disabled by default. This bug is not obvious and difficult to detect. Because curl requests behave unpredictable, sometimes it works, sometimes it freezes, sometimes it immediately times out depending on the version of Android you are running on.

from curl.

We'd need to make a runtime check to skip this feature on older Android versions as it seems? (We already do that for Apple platforms). We'd be happy to review a patch for that, or an alternate solution to address it, e.g. auto-disabling this feature when targeting an Android version older than N.

from curl.

Yes, that would be useful. It took me several days to figure out this bug. I wouldn't want other people to experience this.

from curl.

Is there an agreed-upon method on how to detect Android for this so that we can mark that as having a buggy implementation?

from curl.