Fix sending notifications in the successful case

Dependencies

• [2] IE2PRAQU hydra-queue-runner: Send build notifications
• [3] HUUZFPPK Fix race between the queue monitor and the builder threads
• [4] O7MWBXF6 Doh
• [5] HPJKBFZ4 Handle concurrent finishing of the same build
• [6] ENXUSMSV Make concurrency more robust
• [7] 24BMQDZA Start of single-process hydra-queue-runner

Change contents

• edit in src/hydra-queue-runner/hydra-queue-runner.cc at line 1160
  [3.3457]

  [3.3457]
  +

  + std::vector<BuildID> buildIDs;

  +
• edit in src/hydra-queue-runner/hydra-queue-runner.cc at line 1209
  [3.5190]

  [3.5190]
  + buildIDs.push_back(b->id);
• replacement in src/hydra-queue-runner/hydra-queue-runner.cc at line 1213
  [2.608]→[2.608:840](∅→∅)
  − /* Send notification about this build. */

  − {

  − auto notificationSenderQueue_(notificationSenderQueue.lock());

  − notificationSenderQueue_->push(NotificationItem(build->id, std::vector<BuildID>()));
  [2.608]

  [3.8953]
  + /* Send notification about the builds that have this step as

  + the top-level. */

  + for (auto id : buildIDs) {

  + {

  + auto notificationSenderQueue_(notificationSenderQueue.lock());

  + notificationSenderQueue_->push(NotificationItem(id, std::vector<BuildID>()));

  + }

  + notificationSenderWakeup.notify_one();
• edit in src/hydra-queue-runner/hydra-queue-runner.cc at line 1222
  [3.8963]→[2.841:888](∅→∅)
  − notificationSenderWakeup.notify_one();
• edit in src/hydra-queue-runner/hydra-queue-runner.cc at line 1312
  [3.8625]→[2.934:990](∅→∅)
  − dependentIDs.push_back(build2->id);
• edit in src/hydra-queue-runner/hydra-queue-runner.cc at line 1337
  [3.9900]

  [3.9900]
  + dependentIDs.push_back(b->id);