UnitPrefork got what I assume is one of those PING frames that
ChildProcess::isAlive() sends before the actual reply when it sent the
"unit-memdump" message, and did not like it. Uncommenting the line
that outputs the "memory stats" message it expects showed:
Got memory stats 'PING'
Followed by:
Assertion `tokens.count() == 2' failed.
Fix by factoring out the handling of PING frames, PONG frames, and the
pseudo-PONG frames that we send ourselves in reply to PING frames into
a new function IoUtil::receiveFrame(). Use that in a couple of
places. (Probably should use in many more places.)
Getting past this then leads to later cppunit tests again being run,
and their failures then again showing up...
bfcf9756f5