Periodically dump/log status

Dependencies

• [2] PLOZBRTR Add command ‘hydra-queue-runner --status’ to show current status
• [3] XV4AEKJC hydra-queue-runner: Handle status queries on the main thread
• [4] RQUAATWB Add status dump facility
• [5] GS4BE6TB Asynchronously compress build logs
• [6] NJJ7H64S Very basic multi-threaded queue runner
• [*] 24BMQDZA Start of single-process hydra-queue-runner

Change contents

• replacement in src/hydra-queue-runner/hydra-queue-runner.cc at line 310
  [2.97]→[2.97:137](∅→∅)
  − void dumpStatus(Connection & conn);
  [2.97]

  [3.1020]
  + void dumpStatus(Connection & conn, bool log);
• replacement in src/hydra-queue-runner/hydra-queue-runner.cc at line 1399
  [3.3009]→[2.269:311](∅→∅)
  − void State::dumpStatus(Connection & conn)
  [3.3009]

  [3.281]
  + void State::dumpStatus(Connection & conn, bool log)
• edit in src/hydra-queue-runner/hydra-queue-runner.cc at line 1447
  [2.2018]

  [3.407]
  + if (log) printMsg(lvlInfo, format("status: %1%") % out.str());

  +
• replacement in src/hydra-queue-runner/hydra-queue-runner.cc at line 1525
  [2.3821]→[2.3821:3848](∅→∅)
  − dumpStatus(*conn);
  [2.3821]

  [2.3848]
  + dumpStatus(*conn, false);
• replacement in src/hydra-queue-runner/hydra-queue-runner.cc at line 1543
  [3.551]→[3.551:633](∅→∅),[3.633]→[2.3855:3901](∅→∅)
  − conn->await_notification();

  − if (dumpStatus.get())

  − State::dumpStatus(*conn);
  [3.551]

  [3.674]
  + bool timeout = conn->await_notification(300, 0) == 0;

  + State::dumpStatus(*conn, timeout);