Add microfactory tracing
Test: m clean; load out/build.trace.gz in chrome://tracing
Test: m -j nothing; load again
Change-Id: I67d4e006a4bdde593b54c20d6d93a48278fe696d
diff --git a/ui/tracer/microfactory.go b/ui/tracer/microfactory.go
new file mode 100644
index 0000000..320d9d8
--- /dev/null
+++ b/ui/tracer/microfactory.go
@@ -0,0 +1,63 @@
+// Copyright 2017 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package tracer
+
+import (
+ "bufio"
+ "os"
+ "strconv"
+ "strings"
+)
+
+func (t *tracerImpl) ImportMicrofactoryLog(filename string) {
+ if _, err := os.Stat(filename); err != nil {
+ return
+ }
+
+ f, err := os.Open(filename)
+ if err != nil {
+ t.log.Println("Error opening microfactory trace:", err)
+ return
+ }
+ defer f.Close()
+
+ entries := []*eventEntry{}
+ begin := map[string][]uint64{}
+ s := bufio.NewScanner(f)
+ for s.Scan() {
+ fields := strings.SplitN(s.Text(), " ", 3)
+ if len(fields) != 3 {
+ t.log.Verboseln("Unknown line in microfactory trace:", s.Text())
+ continue
+ }
+ timestamp, err := strconv.ParseUint(fields[0], 10, 64)
+ if err != nil {
+ t.log.Verboseln("Failed to parse timestamp in microfactory trace:", err)
+ }
+
+ if fields[1] == "B" {
+ begin[fields[2]] = append(begin[fields[2]], timestamp)
+ } else if beginTimestamps, ok := begin[fields[2]]; ok {
+ entries = append(entries, &eventEntry{
+ Name: fields[2],
+ Begin: beginTimestamps[len(beginTimestamps)-1],
+ End: timestamp,
+ })
+ begin[fields[2]] = beginTimestamps[:len(beginTimestamps)-1]
+ }
+ }
+
+ t.importEvents(entries)
+}