pause, resume and abort running builds cmd (#421)

- Feature: `zen builds pause`, `zen builds resume` and `zen builds abort` commands to control a running `zen builds` command
  - `--process-id` the process id to control, if omitted it tries to find a running process using the same executable as itself
- Improvement: Process report now indicates if it is pausing or aborting

1 files changed, 4 insertions, 3 deletions

diff --git a/src/zenserver/cache/httpstructuredcache.cpp b/src/zenserver/cache/httpstructuredcache.cpp
index f7e63433b..9f2e826d6 100644
--- a/src/zenserver/cache/httpstructuredcache.cpp
+++ b/src/zenserver/cache/httpstructuredcache.cpp
@@ -1588,7 +1588,8 @@ HttpStructuredCacheService::ReplayRequestRecorder(const CacheRequestContext&  Co
 	Stopwatch		 Timer;
 	auto _ = MakeGuard([&]() { ZEN_INFO("Replayed {} requests in {}", RequestCount, NiceLatencyNs(Timer.GetElapsedTimeUs() * 1000)); });
 	std::atomic<bool> AbortFlag;
-	ParallelWork	  Work(AbortFlag);
+	std::atomic<bool> PauseFlag;
+	ParallelWork	  Work(AbortFlag, PauseFlag);
 	ZEN_INFO("Replaying {} requests", RequestCount);
 	for (uint64_t RequestIndex = 0; RequestIndex < RequestCount; ++RequestIndex)
 	{
@@ -1638,8 +1639,8 @@ HttpStructuredCacheService::ReplayRequestRecorder(const CacheRequestContext&  Co
 			}
 		});
 	}
-	Work.Wait(10000, [&](bool IsAborted, std::ptrdiff_t PendingWork) {
-		ZEN_UNUSED(IsAborted);
+	Work.Wait(10000, [&](bool IsAborted, bool IsPaused, std::ptrdiff_t PendingWork) {
+		ZEN_UNUSED(IsAborted, IsPaused);
 		ZEN_INFO("Replayed {} of {} requests, elapsed {}",
 				 RequestCount - PendingWork,
 				 RequestCount,