DO NOT MERGE Tests for async-deadlock fix

[jhugman]

This is a test bed for the fix #88 .

Because it depends on a fork of the matrix-rust-sdk, and it makes network calls, we should not check this in as part of the ubrn repo.

[jhugman]

Added console.logs to verify ordering of the calls to and from JS.

The following test run is relatively short, but it shows:

• each call is a call into an async function.
• for each call, there is 1 or more polls into Rust. The polls continue until a pollResult of 0 is received.
• there should be 4 log lines for each call's poll.
  • the order should always be Starting poll, entering callback, leaving callback, ending poll.
  • adding the setImmediate in the callback means the leave callback always happens before the ending poll and before starting the next one. This was definitely one source of deadlock.
  • adding the nextTickPromise in the while loop means the ending poll n and Starting of poll n + 1 do not always happen together.
• changing from setTimeout() to setImmediate made the deadlocks occur more frequently / at less load. We do not want to use setTimeout and introduce arbitrary delays into the code.
• adding the nextTickPromise to the while loop made the deadlocks occur less frequently / at greater load (i.e. things are getting better).

$ cargo xtask run --ts-dir fixtures/${fixture}/generated --cpp-dir fixtures/${fixture}/generated/cpp --crate fixtures/${fixture} fixtures/${fixture}/tests/bindings/test_${fixture//-/_}.ts --no-cargo
-- Starting delay
-- Starting the hermes event loop
-- Ending delay, measured: 1006 ms
🤓 "call 0; poll 0; handle 0: Starting poll 0"
🤓 "call 0; poll 0; handle 0:   entering callback, result = 0"
🤓 "call 0; poll 0; handle 0:   leaving  callback"
🤓 "call 0; poll 0; handle 0:   ending poll 0"
Starting…
-- About to load image 0/8: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 1; poll 0; handle 1: Starting poll 0"
-- About to load image 1/8: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 2; poll 0; handle 2: Starting poll 0"
-- About to load image 2/8: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 3; poll 0; handle 3: Starting poll 0"
-- About to load image 3/8: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 4; poll 0; handle 4: Starting poll 0"
-- About to load image 4/8: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 5; poll 0; handle 5: Starting poll 0"
-- About to load image 5/8: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 6; poll 0; handle 6: Starting poll 0"
-- About to load image 6/8: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 7; poll 0; handle 7: Starting poll 0"
-- About to load image 7/8: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 8; poll 0; handle 8: Starting poll 0"
🤓 "call 1; poll 0; handle 1:   entering callback, result = 1"
🤓 "call 1; poll 0; handle 1:   leaving  callback"
🤓 "call 1; poll 0; handle 1:   ending poll 0"
🤓 "call 1; poll 1; handle 9: Starting poll 1"
🤓 "call 1; poll 1; handle 9:   entering callback, result = 1"
🤓 "call 1; poll 1; handle 9:   leaving  callback"
🤓 "call 1; poll 1; handle 9:   ending poll 1"
🤓 "call 1; poll 2; handle 10: Starting poll 2"
🤓 "call 1; poll 2; handle 10:   entering callback, result = 1"
🤓 "call 1; poll 2; handle 10:   leaving  callback"
🤓 "call 1; poll 2; handle 10:   ending poll 2"
🤓 "call 1; poll 3; handle 11: Starting poll 3"
🤓 "call 1; poll 3; handle 11:   entering callback, result = 1"
🤓 "call 1; poll 3; handle 11:   leaving  callback"
🤓 "call 1; poll 3; handle 11:   ending poll 3"
🤓 "call 1; poll 4; handle 12: Starting poll 4"
🤓 "call 1; poll 4; handle 12:   entering callback, result = 1"
🤓 "call 1; poll 4; handle 12:   leaving  callback"
🤓 "call 1; poll 4; handle 12:   ending poll 4"
🤓 "call 1; poll 5; handle 13: Starting poll 5"
🤓 "call 1; poll 5; handle 13:   entering callback, result = 1"
🤓 "call 1; poll 5; handle 13:   leaving  callback"
🤓 "call 1; poll 5; handle 13:   ending poll 5"
🤓 "call 1; poll 6; handle 14: Starting poll 6"
🤓 "call 1; poll 6; handle 14:   entering callback, result = 1"
🤓 "call 1; poll 6; handle 14:   leaving  callback"
🤓 "call 1; poll 6; handle 14:   ending poll 6"
🤓 "call 1; poll 7; handle 15: Starting poll 7"
🤓 "call 2; poll 0; handle 2:   entering callback, result = 1"
🤓 "call 2; poll 0; handle 2:   leaving  callback"
🤓 "call 3; poll 0; handle 3:   entering callback, result = 1"
🤓 "call 3; poll 0; handle 3:   leaving  callback"
🤓 "call 4; poll 0; handle 4:   entering callback, result = 1"
🤓 "call 4; poll 0; handle 4:   leaving  callback"
🤓 "call 5; poll 0; handle 5:   entering callback, result = 1"
🤓 "call 5; poll 0; handle 5:   leaving  callback"
🤓 "call 6; poll 0; handle 6:   entering callback, result = 1"
🤓 "call 6; poll 0; handle 6:   leaving  callback"
🤓 "call 7; poll 0; handle 7:   entering callback, result = 1"
🤓 "call 7; poll 0; handle 7:   leaving  callback"
🤓 "call 8; poll 0; handle 8:   entering callback, result = 1"
🤓 "call 8; poll 0; handle 8:   leaving  callback"
🤓 "call 2; poll 0; handle 2:   ending poll 0"
🤓 "call 3; poll 0; handle 3:   ending poll 0"
🤓 "call 4; poll 0; handle 4:   ending poll 0"
🤓 "call 5; poll 0; handle 5:   ending poll 0"
🤓 "call 6; poll 0; handle 6:   ending poll 0"
🤓 "call 7; poll 0; handle 7:   ending poll 0"
🤓 "call 8; poll 0; handle 8:   ending poll 0"
🤓 "call 2; poll 1; handle 16: Starting poll 1"
🤓 "call 3; poll 1; handle 17: Starting poll 1"
🤓 "call 4; poll 1; handle 18: Starting poll 1"
🤓 "call 2; poll 1; handle 16:   entering callback, result = 1"
🤓 "call 2; poll 1; handle 16:   leaving  callback"
🤓 "call 5; poll 1; handle 19: Starting poll 1"
🤓 "call 3; poll 1; handle 17:   entering callback, result = 1"
🤓 "call 3; poll 1; handle 17:   leaving  callback"
🤓 "call 6; poll 1; handle 20: Starting poll 1"
🤓 "call 4; poll 1; handle 18:   entering callback, result = 1"
🤓 "call 4; poll 1; handle 18:   leaving  callback"
🤓 "call 7; poll 1; handle 21: Starting poll 1"
🤓 "call 5; poll 1; handle 19:   entering callback, result = 1"
🤓 "call 5; poll 1; handle 19:   leaving  callback"
🤓 "call 6; poll 1; handle 20:   entering callback, result = 1"
🤓 "call 6; poll 1; handle 20:   leaving  callback"
🤓 "call 7; poll 1; handle 21:   entering callback, result = 1"
🤓 "call 7; poll 1; handle 21:   leaving  callback"
🤓 "call 8; poll 1; handle 22: Starting poll 1"
🤓 "call 2; poll 1; handle 16:   ending poll 1"
🤓 "call 3; poll 1; handle 17:   ending poll 1"
🤓 "call 8; poll 1; handle 22:   entering callback, result = 1"
🤓 "call 8; poll 1; handle 22:   leaving  callback"
🤓 "call 4; poll 1; handle 18:   ending poll 1"
🤓 "call 5; poll 1; handle 19:   ending poll 1"
🤓 "call 6; poll 1; handle 20:   ending poll 1"
🤓 "call 7; poll 1; handle 21:   ending poll 1"
🤓 "call 2; poll 2; handle 23: Starting poll 2"
🤓 "call 3; poll 2; handle 24: Starting poll 2"
🤓 "call 8; poll 1; handle 22:   ending poll 1"
🤓 "call 4; poll 2; handle 25: Starting poll 2"
🤓 "call 5; poll 2; handle 26: Starting poll 2"
🤓 "call 6; poll 2; handle 27: Starting poll 2"
🤓 "call 7; poll 2; handle 28: Starting poll 2"
🤓 "call 8; poll 2; handle 29: Starting poll 2"
🤓 "call 1; poll 7; handle 15:   entering callback, result = 1"
🤓 "call 1; poll 7; handle 15:   leaving  callback"
🤓 "call 1; poll 7; handle 15:   ending poll 7"
🤓 "call 1; poll 8; handle 30: Starting poll 8"
🤓 "call 1; poll 8; handle 30:   entering callback, result = 1"
🤓 "call 1; poll 8; handle 30:   leaving  callback"
🤓 "call 1; poll 8; handle 30:   ending poll 8"
🤓 "call 2; poll 2; handle 23:   entering callback, result = 1"
🤓 "call 2; poll 2; handle 23:   leaving  callback"
🤓 "call 1; poll 9; handle 31: Starting poll 9"
🤓 "call 1; poll 9; handle 31:   entering callback, result = 0"
🤓 "call 1; poll 9; handle 31:   leaving  callback"
🤓 "call 3; poll 2; handle 24:   entering callback, result = 1"
🤓 "call 3; poll 2; handle 24:   leaving  callback"
🤓 "call 2; poll 2; handle 23:   ending poll 2"
🤓 "call 4; poll 2; handle 25:   entering callback, result = 1"
🤓 "call 4; poll 2; handle 25:   leaving  callback"
🤓 "call 1; poll 9; handle 31:   ending poll 9"
🤓 "call 6; poll 2; handle 27:   entering callback, result = 1"
🤓 "call 6; poll 2; handle 27:   leaving  callback"
🤓 "call 3; poll 2; handle 24:   ending poll 2"
🤓 "call 5; poll 2; handle 26:   entering callback, result = 1"
🤓 "call 5; poll 2; handle 26:   leaving  callback"
🤓 "call 2; poll 3; handle 32: Starting poll 3"
🤓 "call 2; poll 3; handle 32:   entering callback, result = 1"
🤓 "call 2; poll 3; handle 32:   leaving  callback"
🤓 "call 8; poll 2; handle 29:   entering callback, result = 1"
🤓 "call 8; poll 2; handle 29:   leaving  callback"
🤓 "call 4; poll 2; handle 25:   ending poll 2"
🤓 "call 7; poll 2; handle 28:   entering callback, result = 1"
🤓 "call 7; poll 2; handle 28:   leaving  callback"
-- Loaded image 0/8 mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 6; poll 2; handle 27:   ending poll 2"
🤓 "call 3; poll 3; handle 33: Starting poll 3"
🤓 "call 5; poll 2; handle 26:   ending poll 2"
🤓 "call 2; poll 3; handle 32:   ending poll 3"
🤓 "call 8; poll 2; handle 29:   ending poll 2"
🤓 "call 4; poll 3; handle 34: Starting poll 3"
🤓 "call 7; poll 2; handle 28:   ending poll 2"
🤓 "call 6; poll 3; handle 35: Starting poll 3"
🤓 "call 5; poll 3; handle 36: Starting poll 3"
🤓 "call 2; poll 4; handle 37: Starting poll 4"
🤓 "call 8; poll 3; handle 38: Starting poll 3"
🤓 "call 7; poll 3; handle 39: Starting poll 3"
🤓 "call 3; poll 3; handle 33:   entering callback, result = 1"
🤓 "call 3; poll 3; handle 33:   leaving  callback"
🤓 "call 3; poll 3; handle 33:   ending poll 3"
🤓 "call 4; poll 3; handle 34:   entering callback, result = 1"
🤓 "call 4; poll 3; handle 34:   leaving  callback"
🤓 "call 3; poll 4; handle 40: Starting poll 4"
🤓 "call 6; poll 3; handle 35:   entering callback, result = 1"
🤓 "call 6; poll 3; handle 35:   leaving  callback"
🤓 "call 4; poll 3; handle 34:   ending poll 3"
🤓 "call 5; poll 3; handle 36:   entering callback, result = 1"
🤓 "call 5; poll 3; handle 36:   leaving  callback"
🤓 "call 6; poll 3; handle 35:   ending poll 3"
🤓 "call 8; poll 3; handle 38:   entering callback, result = 1"
🤓 "call 8; poll 3; handle 38:   leaving  callback"
🤓 "call 4; poll 4; handle 41: Starting poll 4"
🤓 "call 7; poll 3; handle 39:   entering callback, result = 1"
🤓 "call 7; poll 3; handle 39:   leaving  callback"
🤓 "call 5; poll 3; handle 36:   ending poll 3"
🤓 "call 2; poll 4; handle 37:   entering callback, result = 1"
🤓 "call 2; poll 4; handle 37:   leaving  callback"
🤓 "call 6; poll 4; handle 42: Starting poll 4"
🤓 "call 8; poll 3; handle 38:   ending poll 3"
🤓 "call 7; poll 3; handle 39:   ending poll 3"
🤓 "call 5; poll 4; handle 43: Starting poll 4"
🤓 "call 2; poll 4; handle 37:   ending poll 4"
🤓 "call 8; poll 4; handle 44: Starting poll 4"
🤓 "call 7; poll 4; handle 45: Starting poll 4"
🤓 "call 2; poll 5; handle 46: Starting poll 5"
🤓 "call 3; poll 4; handle 40:   entering callback, result = 1"
🤓 "call 3; poll 4; handle 40:   leaving  callback"
🤓 "call 2; poll 5; handle 46:   entering callback, result = 0"
🤓 "call 2; poll 5; handle 46:   leaving  callback"
🤓 "call 3; poll 4; handle 40:   ending poll 4"
🤓 "call 2; poll 5; handle 46:   ending poll 5"
🤓 "call 3; poll 5; handle 47: Starting poll 5"
-- Loaded image 1/8 mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 4; poll 4; handle 41:   entering callback, result = 1"
🤓 "call 4; poll 4; handle 41:   leaving  callback"
🤓 "call 4; poll 4; handle 41:   ending poll 4"
🤓 "call 4; poll 5; handle 48: Starting poll 5"
🤓 "call 5; poll 4; handle 43:   entering callback, result = 1"
🤓 "call 5; poll 4; handle 43:   leaving  callback"
🤓 "call 5; poll 4; handle 43:   ending poll 4"
🤓 "call 5; poll 5; handle 49: Starting poll 5"
🤓 "call 6; poll 4; handle 42:   entering callback, result = 1"
🤓 "call 6; poll 4; handle 42:   leaving  callback"
🤓 "call 6; poll 4; handle 42:   ending poll 4"
🤓 "call 6; poll 5; handle 50: Starting poll 5"
🤓 "call 7; poll 4; handle 45:   entering callback, result = 1"
🤓 "call 7; poll 4; handle 45:   leaving  callback"
🤓 "call 7; poll 4; handle 45:   ending poll 4"
🤓 "call 7; poll 5; handle 51: Starting poll 5"
🤓 "call 8; poll 4; handle 44:   entering callback, result = 1"
🤓 "call 8; poll 4; handle 44:   leaving  callback"
🤓 "call 8; poll 4; handle 44:   ending poll 4"
🤓 "call 8; poll 5; handle 52: Starting poll 5"
🤓 "call 3; poll 5; handle 47:   entering callback, result = 1"
🤓 "call 3; poll 5; handle 47:   leaving  callback"
🤓 "call 3; poll 5; handle 47:   ending poll 5"
🤓 "call 3; poll 6; handle 53: Starting poll 6"
🤓 "call 3; poll 6; handle 53:   entering callback, result = 0"
🤓 "call 3; poll 6; handle 53:   leaving  callback"
🤓 "call 3; poll 6; handle 53:   ending poll 6"
-- Loaded image 2/8 mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 4; poll 5; handle 48:   entering callback, result = 1"
🤓 "call 4; poll 5; handle 48:   leaving  callback"
🤓 "call 4; poll 5; handle 48:   ending poll 5"
🤓 "call 5; poll 5; handle 49:   entering callback, result = 1"
🤓 "call 5; poll 5; handle 49:   leaving  callback"
🤓 "call 4; poll 6; handle 54: Starting poll 6"
🤓 "call 6; poll 5; handle 50:   entering callback, result = 1"
🤓 "call 6; poll 5; handle 50:   leaving  callback"
🤓 "call 5; poll 5; handle 49:   ending poll 5"
🤓 "call 4; poll 6; handle 54:   entering callback, result = 1"
🤓 "call 4; poll 6; handle 54:   leaving  callback"
🤓 "call 6; poll 5; handle 50:   ending poll 5"
🤓 "call 5; poll 6; handle 55: Starting poll 6"
🤓 "call 5; poll 6; handle 55:   entering callback, result = 1"
🤓 "call 5; poll 6; handle 55:   leaving  callback"
🤓 "call 4; poll 6; handle 54:   ending poll 6"
🤓 "call 6; poll 6; handle 56: Starting poll 6"
🤓 "call 6; poll 6; handle 56:   entering callback, result = 1"
🤓 "call 6; poll 6; handle 56:   leaving  callback"
🤓 "call 5; poll 6; handle 55:   ending poll 6"
🤓 "call 7; poll 5; handle 51:   entering callback, result = 1"
🤓 "call 7; poll 5; handle 51:   leaving  callback"
🤓 "call 4; poll 7; handle 57: Starting poll 7"
🤓 "call 4; poll 7; handle 57:   entering callback, result = 0"
🤓 "call 4; poll 7; handle 57:   leaving  callback"
🤓 "call 6; poll 6; handle 56:   ending poll 6"
🤓 "call 5; poll 7; handle 58: Starting poll 7"
🤓 "call 5; poll 7; handle 58:   entering callback, result = 0"
🤓 "call 5; poll 7; handle 58:   leaving  callback"
🤓 "call 7; poll 5; handle 51:   ending poll 5"
🤓 "call 4; poll 7; handle 57:   ending poll 7"
🤓 "call 6; poll 7; handle 59: Starting poll 7"
🤓 "call 6; poll 7; handle 59:   entering callback, result = 0"
🤓 "call 6; poll 7; handle 59:   leaving  callback"
🤓 "call 8; poll 5; handle 52:   entering callback, result = 1"
🤓 "call 8; poll 5; handle 52:   leaving  callback"
🤓 "call 5; poll 7; handle 58:   ending poll 7"
🤓 "call 7; poll 6; handle 60: Starting poll 6"
🤓 "call 7; poll 6; handle 60:   entering callback, result = 1"
🤓 "call 7; poll 6; handle 60:   leaving  callback"
-- Loaded image 3/8 mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 6; poll 7; handle 59:   ending poll 7"
🤓 "call 8; poll 5; handle 52:   ending poll 5"
-- Loaded image 4/8 mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 7; poll 6; handle 60:   ending poll 6"
-- Loaded image 5/8 mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 8; poll 6; handle 61: Starting poll 6"
🤓 "call 8; poll 6; handle 61:   entering callback, result = 1"
🤓 "call 8; poll 6; handle 61:   leaving  callback"
🤓 "call 7; poll 7; handle 62: Starting poll 7"
🤓 "call 7; poll 7; handle 62:   entering callback, result = 0"
🤓 "call 7; poll 7; handle 62:   leaving  callback"
🤓 "call 8; poll 6; handle 61:   ending poll 6"
🤓 "call 7; poll 7; handle 62:   ending poll 7"
🤓 "call 8; poll 7; handle 63: Starting poll 7"
🤓 "call 8; poll 7; handle 63:   entering callback, result = 0"
🤓 "call 8; poll 7; handle 63:   leaving  callback"
-- Loaded image 6/8 mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 8; poll 7; handle 63:   ending poll 7"
-- Loaded image 7/8 mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
… finished
🤓 "call 9; poll 0; handle 64: Starting poll 0"
🤓 "call 9; poll 0; handle 64:   entering callback, result = 0"
🤓 "call 9; poll 0; handle 64:   leaving  callback"
🤓 "call 9; poll 0; handle 64:   ending poll 0"
Starting…
-- About to load image 0/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 10; poll 0; handle 65: Starting poll 0"
-- About to load image 1/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 11; poll 0; handle 66: Starting poll 0"
-- About to load image 2/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 12; poll 0; handle 67: Starting poll 0"
-- About to load image 3/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 13; poll 0; handle 68: Starting poll 0"
-- About to load image 4/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 14; poll 0; handle 69: Starting poll 0"
-- About to load image 5/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 15; poll 0; handle 70: Starting poll 0"
-- About to load image 6/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 16; poll 0; handle 71: Starting poll 0"
-- About to load image 7/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 17; poll 0; handle 72: Starting poll 0"
-- About to load image 8/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 18; poll 0; handle 73: Starting poll 0"
-- About to load image 9/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 19; poll 0; handle 74: Starting poll 0"
-- About to load image 10/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 20; poll 0; handle 75: Starting poll 0"
-- About to load image 11/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 21; poll 0; handle 76: Starting poll 0"
-- About to load image 12/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 22; poll 0; handle 77: Starting poll 0"
-- About to load image 13/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 23; poll 0; handle 78: Starting poll 0"
-- About to load image 14/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 24; poll 0; handle 79: Starting poll 0"
-- About to load image 15/16: mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 25; poll 0; handle 80: Starting poll 0"
🤓 "call 10; poll 0; handle 65:   entering callback, result = 1"
🤓 "call 10; poll 0; handle 65:   leaving  callback"
🤓 "call 10; poll 0; handle 65:   ending poll 0"
🤓 "call 10; poll 1; handle 81: Starting poll 1"
🤓 "call 10; poll 1; handle 81:   entering callback, result = 1"
🤓 "call 10; poll 1; handle 81:   leaving  callback"
🤓 "call 10; poll 1; handle 81:   ending poll 1"
🤓 "call 10; poll 2; handle 82: Starting poll 2"
🤓 "call 10; poll 2; handle 82:   entering callback, result = 1"
🤓 "call 10; poll 2; handle 82:   leaving  callback"
🤓 "call 10; poll 2; handle 82:   ending poll 2"
🤓 "call 10; poll 3; handle 83: Starting poll 3"
🤓 "call 10; poll 3; handle 83:   entering callback, result = 1"
🤓 "call 10; poll 3; handle 83:   leaving  callback"
🤓 "call 10; poll 3; handle 83:   ending poll 3"
🤓 "call 10; poll 4; handle 84: Starting poll 4"
🤓 "call 10; poll 4; handle 84:   entering callback, result = 1"
🤓 "call 10; poll 4; handle 84:   leaving  callback"
🤓 "call 10; poll 4; handle 84:   ending poll 4"
🤓 "call 10; poll 5; handle 85: Starting poll 5"
🤓 "call 10; poll 5; handle 85:   entering callback, result = 1"
🤓 "call 10; poll 5; handle 85:   leaving  callback"
🤓 "call 10; poll 5; handle 85:   ending poll 5"
🤓 "call 10; poll 6; handle 86: Starting poll 6"
🤓 "call 10; poll 6; handle 86:   entering callback, result = 1"
🤓 "call 10; poll 6; handle 86:   leaving  callback"
🤓 "call 10; poll 6; handle 86:   ending poll 6"
🤓 "call 10; poll 7; handle 87: Starting poll 7"
🤓 "call 11; poll 0; handle 66:   entering callback, result = 1"
🤓 "call 11; poll 0; handle 66:   leaving  callback"
🤓 "call 12; poll 0; handle 67:   entering callback, result = 1"
🤓 "call 12; poll 0; handle 67:   leaving  callback"
🤓 "call 13; poll 0; handle 68:   entering callback, result = 1"
🤓 "call 13; poll 0; handle 68:   leaving  callback"
🤓 "call 14; poll 0; handle 69:   entering callback, result = 1"
🤓 "call 14; poll 0; handle 69:   leaving  callback"
🤓 "call 15; poll 0; handle 70:   entering callback, result = 1"
🤓 "call 15; poll 0; handle 70:   leaving  callback"
🤓 "call 16; poll 0; handle 71:   entering callback, result = 1"
🤓 "call 16; poll 0; handle 71:   leaving  callback"
🤓 "call 17; poll 0; handle 72:   entering callback, result = 1"
🤓 "call 17; poll 0; handle 72:   leaving  callback"
🤓 "call 18; poll 0; handle 73:   entering callback, result = 1"
🤓 "call 18; poll 0; handle 73:   leaving  callback"
🤓 "call 19; poll 0; handle 74:   entering callback, result = 1"
🤓 "call 19; poll 0; handle 74:   leaving  callback"
🤓 "call 20; poll 0; handle 75:   entering callback, result = 1"
🤓 "call 20; poll 0; handle 75:   leaving  callback"
🤓 "call 21; poll 0; handle 76:   entering callback, result = 1"
🤓 "call 21; poll 0; handle 76:   leaving  callback"
🤓 "call 22; poll 0; handle 77:   entering callback, result = 1"
🤓 "call 22; poll 0; handle 77:   leaving  callback"
🤓 "call 23; poll 0; handle 78:   entering callback, result = 1"
🤓 "call 23; poll 0; handle 78:   leaving  callback"
🤓 "call 24; poll 0; handle 79:   entering callback, result = 1"
🤓 "call 24; poll 0; handle 79:   leaving  callback"
🤓 "call 25; poll 0; handle 80:   entering callback, result = 1"
🤓 "call 25; poll 0; handle 80:   leaving  callback"
🤓 "call 11; poll 0; handle 66:   ending poll 0"
🤓 "call 12; poll 0; handle 67:   ending poll 0"
🤓 "call 13; poll 0; handle 68:   ending poll 0"
🤓 "call 14; poll 0; handle 69:   ending poll 0"
🤓 "call 15; poll 0; handle 70:   ending poll 0"
🤓 "call 16; poll 0; handle 71:   ending poll 0"
🤓 "call 17; poll 0; handle 72:   ending poll 0"
🤓 "call 18; poll 0; handle 73:   ending poll 0"
🤓 "call 19; poll 0; handle 74:   ending poll 0"
🤓 "call 20; poll 0; handle 75:   ending poll 0"
🤓 "call 21; poll 0; handle 76:   ending poll 0"
🤓 "call 22; poll 0; handle 77:   ending poll 0"
🤓 "call 23; poll 0; handle 78:   ending poll 0"
🤓 "call 24; poll 0; handle 79:   ending poll 0"
🤓 "call 25; poll 0; handle 80:   ending poll 0"
🤓 "call 11; poll 1; handle 88: Starting poll 1"
🤓 "call 12; poll 1; handle 89: Starting poll 1"
🤓 "call 11; poll 1; handle 88:   entering callback, result = 1"
🤓 "call 11; poll 1; handle 88:   leaving  callback"
🤓 "call 12; poll 1; handle 89:   entering callback, result = 1"
🤓 "call 12; poll 1; handle 89:   leaving  callback"
🤓 "call 13; poll 1; handle 90: Starting poll 1"
🤓 "call 14; poll 1; handle 91: Starting poll 1"
🤓 "call 15; poll 1; handle 92: Starting poll 1"
🤓 "call 14; poll 1; handle 91:   entering callback, result = 1"
🤓 "call 14; poll 1; handle 91:   leaving  callback"
🤓 "call 13; poll 1; handle 90:   entering callback, result = 1"
🤓 "call 13; poll 1; handle 90:   leaving  callback"
🤓 "call 15; poll 1; handle 92:   entering callback, result = 1"
🤓 "call 15; poll 1; handle 92:   leaving  callback"
🤓 "call 16; poll 1; handle 93: Starting poll 1"
🤓 "call 17; poll 1; handle 94: Starting poll 1"
🤓 "call 18; poll 1; handle 95: Starting poll 1"
🤓 "call 17; poll 1; handle 94:   entering callback, result = 1"
🤓 "call 17; poll 1; handle 94:   leaving  callback"
🤓 "call 16; poll 1; handle 93:   entering callback, result = 1"
🤓 "call 16; poll 1; handle 93:   leaving  callback"
🤓 "call 18; poll 1; handle 95:   entering callback, result = 1"
🤓 "call 18; poll 1; handle 95:   leaving  callback"
🤓 "call 19; poll 1; handle 96: Starting poll 1"
🤓 "call 20; poll 1; handle 97: Starting poll 1"
🤓 "call 19; poll 1; handle 96:   entering callback, result = 1"
🤓 "call 19; poll 1; handle 96:   leaving  callback"
🤓 "call 20; poll 1; handle 97:   entering callback, result = 1"
🤓 "call 20; poll 1; handle 97:   leaving  callback"
🤓 "call 21; poll 1; handle 98: Starting poll 1"
🤓 "call 22; poll 1; handle 99: Starting poll 1"
🤓 "call 23; poll 1; handle 100: Starting poll 1"
🤓 "call 24; poll 1; handle 101: Starting poll 1"
🤓 "call 25; poll 1; handle 102: Starting poll 1"
🤓 "call 11; poll 1; handle 88:   ending poll 1"
🤓 "call 12; poll 1; handle 89:   ending poll 1"
🤓 "call 23; poll 1; handle 100:   entering callback, result = 1"
🤓 "call 23; poll 1; handle 100:   leaving  callback"
🤓 "call 22; poll 1; handle 99:   entering callback, result = 1"
🤓 "call 22; poll 1; handle 99:   leaving  callback"
🤓 "call 21; poll 1; handle 98:   entering callback, result = 1"
🤓 "call 21; poll 1; handle 98:   leaving  callback"
🤓 "call 24; poll 1; handle 101:   entering callback, result = 1"
🤓 "call 24; poll 1; handle 101:   leaving  callback"
🤓 "call 25; poll 1; handle 102:   entering callback, result = 1"
🤓 "call 25; poll 1; handle 102:   leaving  callback"
🤓 "call 14; poll 1; handle 91:   ending poll 1"
🤓 "call 13; poll 1; handle 90:   ending poll 1"
🤓 "call 15; poll 1; handle 92:   ending poll 1"
🤓 "call 17; poll 1; handle 94:   ending poll 1"
🤓 "call 16; poll 1; handle 93:   ending poll 1"
🤓 "call 18; poll 1; handle 95:   ending poll 1"
🤓 "call 19; poll 1; handle 96:   ending poll 1"
🤓 "call 20; poll 1; handle 97:   ending poll 1"
🤓 "call 11; poll 2; handle 103: Starting poll 2"
🤓 "call 12; poll 2; handle 104: Starting poll 2"
🤓 "call 23; poll 1; handle 100:   ending poll 1"
🤓 "call 22; poll 1; handle 99:   ending poll 1"
🤓 "call 21; poll 1; handle 98:   ending poll 1"
🤓 "call 24; poll 1; handle 101:   ending poll 1"
🤓 "call 25; poll 1; handle 102:   ending poll 1"
🤓 "call 14; poll 2; handle 105: Starting poll 2"
🤓 "call 13; poll 2; handle 106: Starting poll 2"
🤓 "call 15; poll 2; handle 107: Starting poll 2"
🤓 "call 17; poll 2; handle 108: Starting poll 2"
🤓 "call 16; poll 2; handle 109: Starting poll 2"
🤓 "call 18; poll 2; handle 110: Starting poll 2"
🤓 "call 19; poll 2; handle 111: Starting poll 2"
🤓 "call 20; poll 2; handle 112: Starting poll 2"
🤓 "call 23; poll 2; handle 113: Starting poll 2"
🤓 "call 22; poll 2; handle 114: Starting poll 2"
🤓 "call 21; poll 2; handle 115: Starting poll 2"
🤓 "call 24; poll 2; handle 116: Starting poll 2"
🤓 "call 25; poll 2; handle 117: Starting poll 2"
🤓 "call 10; poll 7; handle 87:   entering callback, result = 1"
🤓 "call 10; poll 7; handle 87:   leaving  callback"
🤓 "call 10; poll 7; handle 87:   ending poll 7"
🤓 "call 10; poll 8; handle 118: Starting poll 8"
🤓 "call 10; poll 8; handle 118:   entering callback, result = 1"
🤓 "call 10; poll 8; handle 118:   leaving  callback"
🤓 "call 10; poll 8; handle 118:   ending poll 8"
🤓 "call 11; poll 2; handle 103:   entering callback, result = 1"
🤓 "call 11; poll 2; handle 103:   leaving  callback"
🤓 "call 10; poll 9; handle 119: Starting poll 9"
🤓 "call 10; poll 9; handle 119:   entering callback, result = 0"
🤓 "call 10; poll 9; handle 119:   leaving  callback"
🤓 "call 11; poll 2; handle 103:   ending poll 2"
🤓 "call 10; poll 9; handle 119:   ending poll 9"
🤓 "call 11; poll 3; handle 120: Starting poll 3"
-- Loaded image 0/16 mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 12; poll 2; handle 104:   entering callback, result = 1"
🤓 "call 12; poll 2; handle 104:   leaving  callback"
🤓 "call 12; poll 2; handle 104:   ending poll 2"
🤓 "call 12; poll 3; handle 121: Starting poll 3"
🤓 "call 15; poll 2; handle 107:   entering callback, result = 1"
🤓 "call 15; poll 2; handle 107:   leaving  callback"
🤓 "call 15; poll 2; handle 107:   ending poll 2"
🤓 "call 17; poll 2; handle 108:   entering callback, result = 1"
🤓 "call 17; poll 2; handle 108:   leaving  callback"
🤓 "call 15; poll 3; handle 122: Starting poll 3"
🤓 "call 14; poll 2; handle 105:   entering callback, result = 1"
🤓 "call 14; poll 2; handle 105:   leaving  callback"
🤓 "call 17; poll 2; handle 108:   ending poll 2"
🤓 "call 20; poll 2; handle 112:   entering callback, result = 1"
🤓 "call 20; poll 2; handle 112:   leaving  callback"
🤓 "call 14; poll 2; handle 105:   ending poll 2"
🤓 "call 19; poll 2; handle 111:   entering callback, result = 1"
🤓 "call 19; poll 2; handle 111:   leaving  callback"
🤓 "call 17; poll 3; handle 123: Starting poll 3"
🤓 "call 18; poll 2; handle 110:   entering callback, result = 1"
🤓 "call 18; poll 2; handle 110:   leaving  callback"
🤓 "call 20; poll 2; handle 112:   ending poll 2"
🤓 "call 13; poll 2; handle 106:   entering callback, result = 1"
🤓 "call 13; poll 2; handle 106:   leaving  callback"
🤓 "call 14; poll 3; handle 124: Starting poll 3"
🤓 "call 22; poll 2; handle 114:   entering callback, result = 1"
🤓 "call 22; poll 2; handle 114:   leaving  callback"
🤓 "call 19; poll 2; handle 111:   ending poll 2"
🤓 "call 23; poll 2; handle 113:   entering callback, result = 1"
🤓 "call 23; poll 2; handle 113:   leaving  callback"
🤓 "call 18; poll 2; handle 110:   ending poll 2"
🤓 "call 21; poll 2; handle 115:   entering callback, result = 1"
🤓 "call 21; poll 2; handle 115:   leaving  callback"
🤓 "call 20; poll 3; handle 125: Starting poll 3"
🤓 "call 16; poll 2; handle 109:   entering callback, result = 1"
🤓 "call 16; poll 2; handle 109:   leaving  callback"
🤓 "call 13; poll 2; handle 106:   ending poll 2"
🤓 "call 25; poll 2; handle 117:   entering callback, result = 1"
🤓 "call 25; poll 2; handle 117:   leaving  callback"
🤓 "call 22; poll 2; handle 114:   ending poll 2"
🤓 "call 24; poll 2; handle 116:   entering callback, result = 1"
🤓 "call 24; poll 2; handle 116:   leaving  callback"
🤓 "call 19; poll 3; handle 126: Starting poll 3"
🤓 "call 23; poll 2; handle 113:   ending poll 2"
🤓 "call 18; poll 3; handle 127: Starting poll 3"
🤓 "call 21; poll 2; handle 115:   ending poll 2"
🤓 "call 16; poll 2; handle 109:   ending poll 2"
🤓 "call 13; poll 3; handle 128: Starting poll 3"
🤓 "call 25; poll 2; handle 117:   ending poll 2"
🤓 "call 22; poll 3; handle 129: Starting poll 3"
🤓 "call 24; poll 2; handle 116:   ending poll 2"
🤓 "call 23; poll 3; handle 130: Starting poll 3"
🤓 "call 21; poll 3; handle 131: Starting poll 3"
🤓 "call 16; poll 3; handle 132: Starting poll 3"
🤓 "call 25; poll 3; handle 133: Starting poll 3"
🤓 "call 24; poll 3; handle 134: Starting poll 3"
🤓 "call 11; poll 3; handle 120:   entering callback, result = 1"
🤓 "call 11; poll 3; handle 120:   leaving  callback"
🤓 "call 11; poll 3; handle 120:   ending poll 3"
🤓 "call 11; poll 4; handle 135: Starting poll 4"
🤓 "call 12; poll 3; handle 121:   entering callback, result = 1"
🤓 "call 12; poll 3; handle 121:   leaving  callback"
🤓 "call 11; poll 4; handle 135:   entering callback, result = 0"
🤓 "call 11; poll 4; handle 135:   leaving  callback"
🤓 "call 12; poll 3; handle 121:   ending poll 3"
🤓 "call 11; poll 4; handle 135:   ending poll 4"
🤓 "call 12; poll 4; handle 136: Starting poll 4"
-- Loaded image 1/16 mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 15; poll 3; handle 122:   entering callback, result = 1"
🤓 "call 15; poll 3; handle 122:   leaving  callback"
🤓 "call 15; poll 3; handle 122:   ending poll 3"
🤓 "call 17; poll 3; handle 123:   entering callback, result = 1"
🤓 "call 17; poll 3; handle 123:   leaving  callback"
🤓 "call 15; poll 4; handle 137: Starting poll 4"
🤓 "call 20; poll 3; handle 125:   entering callback, result = 1"
🤓 "call 20; poll 3; handle 125:   leaving  callback"
🤓 "call 17; poll 3; handle 123:   ending poll 3"
🤓 "call 14; poll 3; handle 124:   entering callback, result = 1"
🤓 "call 14; poll 3; handle 124:   leaving  callback"
🤓 "call 20; poll 3; handle 125:   ending poll 3"
🤓 "call 19; poll 3; handle 126:   entering callback, result = 1"
🤓 "call 19; poll 3; handle 126:   leaving  callback"
🤓 "call 17; poll 4; handle 138: Starting poll 4"
🤓 "call 18; poll 3; handle 127:   entering callback, result = 1"
🤓 "call 18; poll 3; handle 127:   leaving  callback"
🤓 "call 14; poll 3; handle 124:   ending poll 3"
🤓 "call 22; poll 3; handle 129:   entering callback, result = 1"
🤓 "call 22; poll 3; handle 129:   leaving  callback"
🤓 "call 20; poll 4; handle 139: Starting poll 4"
🤓 "call 23; poll 3; handle 130:   entering callback, result = 1"
🤓 "call 23; poll 3; handle 130:   leaving  callback"
🤓 "call 19; poll 3; handle 126:   ending poll 3"
🤓 "call 25; poll 3; handle 133:   entering callback, result = 1"
🤓 "call 25; poll 3; handle 133:   leaving  callback"
🤓 "call 18; poll 3; handle 127:   ending poll 3"
🤓 "call 21; poll 3; handle 131:   entering callback, result = 1"
🤓 "call 21; poll 3; handle 131:   leaving  callback"
🤓 "call 14; poll 4; handle 140: Starting poll 4"
🤓 "call 13; poll 3; handle 128:   entering callback, result = 1"
🤓 "call 13; poll 3; handle 128:   leaving  callback"
🤓 "call 22; poll 3; handle 129:   ending poll 3"
🤓 "call 24; poll 3; handle 134:   entering callback, result = 1"
🤓 "call 24; poll 3; handle 134:   leaving  callback"
🤓 "call 23; poll 3; handle 130:   ending poll 3"
🤓 "call 16; poll 3; handle 132:   entering callback, result = 1"
🤓 "call 16; poll 3; handle 132:   leaving  callback"
🤓 "call 19; poll 4; handle 141: Starting poll 4"
🤓 "call 12; poll 4; handle 136:   entering callback, result = 1"
🤓 "call 12; poll 4; handle 136:   leaving  callback"
🤓 "call 25; poll 3; handle 133:   ending poll 3"
🤓 "call 18; poll 4; handle 142: Starting poll 4"
🤓 "call 21; poll 3; handle 131:   ending poll 3"
🤓 "call 13; poll 3; handle 128:   ending poll 3"
🤓 "call 22; poll 4; handle 143: Starting poll 4"
🤓 "call 24; poll 3; handle 134:   ending poll 3"
🤓 "call 23; poll 4; handle 144: Starting poll 4"
🤓 "call 16; poll 3; handle 132:   ending poll 3"
🤓 "call 12; poll 4; handle 136:   ending poll 4"
🤓 "call 25; poll 4; handle 145: Starting poll 4"
🤓 "call 21; poll 4; handle 146: Starting poll 4"
🤓 "call 13; poll 4; handle 147: Starting poll 4"
🤓 "call 13; poll 4; handle 147:   entering callback, result = 1"
🤓 "call 13; poll 4; handle 147:   leaving  callback"
🤓 "call 24; poll 4; handle 148: Starting poll 4"
🤓 "call 16; poll 4; handle 149: Starting poll 4"
🤓 "call 12; poll 5; handle 150: Starting poll 5"
🤓 "call 14; poll 4; handle 140:   entering callback, result = 1"
🤓 "call 14; poll 4; handle 140:   leaving  callback"
🤓 "call 12; poll 5; handle 150:   entering callback, result = 0"
🤓 "call 12; poll 5; handle 150:   leaving  callback"
🤓 "call 13; poll 4; handle 147:   ending poll 4"
🤓 "call 14; poll 4; handle 140:   ending poll 4"
🤓 "call 12; poll 5; handle 150:   ending poll 5"
🤓 "call 13; poll 5; handle 151: Starting poll 5"
🤓 "call 14; poll 5; handle 152: Starting poll 5"
-- Loaded image 2/16 mxc://matrix.1badday.com/RUUIKNjovSSwYbULWuNQarDA
🤓 "call 15; poll 4; handle 137:   entering callback, result = 1"
🤓 "call 15; poll 4; handle 137:   leaving  callback"
🤓 "call 15; poll 4; handle 137:   ending poll 4"
🤓 "call 15; poll 5; handle 153: Starting poll 5"
🤓 "call 15; poll 5; handle 153:   entering callback, result = 1"
🤓 "call 15; poll 5; handle 153:   leaving  callback"
🤓 "call 15; poll 5; handle 153:   ending poll 5"
🤓 "call 15; poll 6; handle 154: Starting poll 6"
🤓 "call 15; poll 6; handle 154:   entering callback, result = 1"
🤓 "call 15; poll 6; handle 154:   leaving  callback"
🤓 "call 17; poll 4; handle 138:   entering callback, result = 1"
🤓 "call 17; poll 4; handle 138:   leaving  callback"
🤓 "call 15; poll 6; handle 154:   ending poll 6"
🤓 "call 16; poll 4; handle 149:   entering callback, result = 1"
🤓 "call 16; poll 4; handle 149:   leaving  callback"
🤓 "call 17; poll 4; handle 138:   ending poll 4"
🤓 "call 20; poll 4; handle 139:   entering callback, result = 1"
🤓 "call 20; poll 4; handle 139:   leaving  callback"
🤓 "call 15; poll 7; handle 155: Starting poll 7"
🤓 "call 16; poll 4; handle 149:   ending poll 4"
🤓 "call 17; poll 5; handle 156: Starting poll 5"
🤓 "call 17; poll 5; handle 156:   entering callback, result = 1"
🤓 "call 17; poll 5; handle 156:   leaving  callback"
🤓 "call 20; poll 4; handle 139:   ending poll 4"
🤓 "call 16; poll 5; handle 157: Starting poll 5"
🤓 "call 17; poll 5; handle 156:   ending poll 5"
🤓 "call 20; poll 5; handle 158: Starting poll 5"
🤓 "call 20; poll 5; handle 158:   entering callback, result = 1"
🤓 "call 20; poll 5; handle 158:   leaving  callback"
🤓 "call 17; poll 6; handle 159: Starting poll 6"
🤓 "call 20; poll 5; handle 158:   ending poll 5"
🤓 "call 20; poll 6; handle 160: Starting poll 6"

/cc @zzorba

[zzorba]

Thank you for update -- very informative.

Let me know if it's worth trying to incorporate this into my test branch.