Is your feature request related to a problem? Please describe.

After calling child_process.spawn, I'd like to know when the child process has successfully spawned and there's no longer the possibility of an 'error' event from failing to spawn (i.e. error type # 1 in the docs for that 'error' event, e.g. EPERM, `ENOEN

Similar to #1196

Issue details

If a game is paused for a long time, after resuming, Gdx.graphics.getDeltaTime() will give the delta of the entire pause duration. This causes freeze/stutter on resume as the game tries to process possibly hours worth of delta. This was fixed for the android version but not for iOS which makes it inconsistent across backends.

Version of LibGDX an

See: https://illumos.org/man/5/epoll

Idea: move logic from src/unix/linux-core.c to src/unix/epoll.c and share that between Linux and Illumos.

Motivation:

• removes 250-300 lines of code from src/unix/sunos.c
• switches to much more battle-hardened code
• makes libuv more efficient because it no longer has to accommodate this event ports quirk:

diff --git a/src/unix/core.c b/s

Support using="-android viewmatcher", value="<JSON>"

appium/appium-espresso-driver#516

like appium/appium#12372

Acceptance Criteria:

• Ruby
• Python
• Java
• C#
• WebdriverIO ?
• wd ?