Add long running jobs info

For the data to prioritize long running tasks in ninja, I added the
information about that.

Bug: 271526845
Test: build and check metrics
Change-Id: I76807f9b0d6a50d940b5f35dd6a9ef3cf693eec5
diff --git a/ui/metrics/metrics_proto/metrics.pb.go b/ui/metrics/metrics_proto/metrics.pb.go
index d6f5bf3..5e144f4 100644
--- a/ui/metrics/metrics_proto/metrics.pb.go
+++ b/ui/metrics/metrics_proto/metrics.pb.go
@@ -1448,6 +1448,8 @@
 	CriticalPathTime *uint64 `protobuf:"varint,2,opt,name=critical_path_time,json=criticalPathTime" json:"critical_path_time,omitempty"`
 	// Detailed job information in a critical path.
 	CriticalPath []*JobInfo `protobuf:"bytes,4,rep,name=critical_path,json=criticalPath" json:"critical_path,omitempty"`
+	// Detailed job information for long running jobs (>30 seconds). These may or may not also be on a critical path.
+	LongRunningJobs []*JobInfo `protobuf:"bytes,5,rep,name=long_running_jobs,json=longRunningJobs" json:"long_running_jobs,omitempty"`
 }
 
 func (x *CriticalPathInfo) Reset() {
@@ -1503,6 +1505,13 @@
 	return nil
 }
 
+func (x *CriticalPathInfo) GetLongRunningJobs() []*JobInfo {
+	if x != nil {
+		return x.LongRunningJobs
+	}
+	return nil
+}
+
 type JobInfo struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -1831,7 +1840,7 @@
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@@ -1841,15 +1850,20 @@
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+	0x5f, 0x70, 0x72, 0x6f, 0x74, 0x6f,
 }
 
 var (
@@ -1909,11 +1923,12 @@
 	14, // 20: soong_build_metrics.SoongBuildMetrics.mixed_builds_info:type_name -> soong_build_metrics.MixedBuildsInfo
 	3,  // 21: soong_build_metrics.ExpConfigFetcher.status:type_name -> soong_build_metrics.ExpConfigFetcher.ConfigStatus
 	16, // 22: soong_build_metrics.CriticalPathInfo.critical_path:type_name -> soong_build_metrics.JobInfo
-	23, // [23:23] is the sub-list for method output_type
-	23, // [23:23] is the sub-list for method input_type
-	23, // [23:23] is the sub-list for extension type_name
-	23, // [23:23] is the sub-list for extension extendee
-	0,  // [0:23] is the sub-list for field type_name
+	16, // 23: soong_build_metrics.CriticalPathInfo.long_running_jobs:type_name -> soong_build_metrics.JobInfo
+	24, // [24:24] is the sub-list for method output_type
+	24, // [24:24] is the sub-list for method input_type
+	24, // [24:24] is the sub-list for extension type_name
+	24, // [24:24] is the sub-list for extension extendee
+	0,  // [0:24] is the sub-list for field type_name
 }
 
 func init() { file_metrics_proto_init() }
diff --git a/ui/metrics/metrics_proto/metrics.proto b/ui/metrics/metrics_proto/metrics.proto
index 2fc9e09..f7a836e 100644
--- a/ui/metrics/metrics_proto/metrics.proto
+++ b/ui/metrics/metrics_proto/metrics.proto
@@ -318,16 +318,18 @@
   repeated string mixed_build_disabled_modules = 2;
 }
 
-message CriticalPathInfo{
+message CriticalPathInfo {
   // Real time which the build system spent
   optional uint64 elapsed_time = 1;
   // The sum of execution time of the longest path from leave to the root
   optional uint64 critical_path_time = 2;
   // Detailed job information in a critical path.
   repeated JobInfo critical_path = 4;
+  // Detailed job information for long running jobs (>30 seconds). These may or may not also be on a critical path.
+  repeated JobInfo long_running_jobs = 5;
 }
 
-message JobInfo{
+message JobInfo {
   // Real time which a job spent
   optional uint64 elapsed_time = 1;
   // Description of a job
diff --git a/ui/status/critical_path.go b/ui/status/critical_path.go
index 72914e7..3c0c4c0 100644
--- a/ui/status/critical_path.go
+++ b/ui/status/critical_path.go
@@ -127,16 +127,31 @@
 	return
 }
 
+func (cp *CriticalPath) longRunningJobs() (nodes []*node) {
+	threshold := time.Second * 30
+	for _, node := range cp.nodes {
+		if node != nil && node.duration > threshold {
+			nodes = append(nodes, node)
+		}
+	}
+	return
+}
+
+func addJobInfos(jobInfos *[]*soong_metrics_proto.JobInfo, sources []*node) {
+	for _, job := range sources {
+		jobInfo := soong_metrics_proto.JobInfo{}
+		jobInfo.ElapsedTime = proto.Uint64(uint64(job.duration.Microseconds()))
+		jobInfo.JobDescription = &job.action.Description
+		*jobInfos = append(*jobInfos, &jobInfo)
+	}
+}
+
 func (cp *CriticalPath) WriteToMetrics(met *metrics.Metrics) {
 	criticalPathInfo := soong_metrics_proto.CriticalPathInfo{}
 	path, elapsedTime, criticalTime := cp.criticalPath()
 	criticalPathInfo.ElapsedTime = proto.Uint64(uint64(elapsedTime.Microseconds()))
 	criticalPathInfo.CriticalPathTime = proto.Uint64(uint64(criticalTime.Microseconds()))
-	for _, job := range path {
-		jobInfo := soong_metrics_proto.JobInfo{}
-		jobInfo.ElapsedTime = proto.Uint64(uint64(job.duration.Microseconds()))
-		jobInfo.JobDescription = &job.action.Description
-		criticalPathInfo.CriticalPath = append(criticalPathInfo.CriticalPath, &jobInfo)
-	}
+	addJobInfos(&criticalPathInfo.LongRunningJobs, cp.longRunningJobs())
+	addJobInfos(&criticalPathInfo.CriticalPath, path)
 	met.SetCriticalPathInfo(criticalPathInfo)
 }