Add 'flog' service implementation.

mojo/dart/packages/mojo_services/lib/mojo/flog/flog.mojom.dart

Index: mojo/dart/packages/mojo_services/lib/mojo/flog/flog.mojom.dart
diff --git a/mojo/dart/packages/mojo_services/lib/mojo/flog/flog.mojom.dart b/mojo/dart/packages/mojo_services/lib/mojo/flog/flog.mojom.dart
index 6933cc486a2b551744752b494fda9cdac348ee98..97f964dd4a1432c964f1593d9608a20ff7a182ae 100644
--- a/mojo/dart/packages/mojo_services/lib/mojo/flog/flog.mojom.dart
+++ b/mojo/dart/packages/mojo_services/lib/mojo/flog/flog.mojom.dart
@@ -12,14 +12,11 @@ import 'package:mojo/mojo/bindings/types/service_describer.mojom.dart' as servic
 
 class FlogDescription extends bindings.Struct {
   static const List<bindings.StructDataHeader> kVersions = const [
-    const bindings.StructDataHeader(48, 0)
+    const bindings.StructDataHeader(24, 0)
   ];
-  String label = null;
   int logId = 0;
-  int entryCount = 0;
-  int startTimeUs = 0;
-  int stopTimeUs = 0;
   bool open = false;
+  String label = null;
 
   FlogDescription() : super(kVersions.last.size);
 
@@ -58,27 +55,15 @@ class FlogDescription extends bindings.Struct {
     }
     if (mainDataHeader.version >= 0) {
       
-      result.label = decoder0.decodeString(8, false);
-    }
-    if (mainDataHeader.version >= 0) {
-      
-      result.logId = decoder0.decodeUint32(16);
-    }
-    if (mainDataHeader.version >= 0) {
-      
-      result.entryCount = decoder0.decodeUint32(20);
-    }
-    if (mainDataHeader.version >= 0) {
-      
-      result.startTimeUs = decoder0.decodeInt64(24);
+      result.logId = decoder0.decodeUint32(8);
     }
     if (mainDataHeader.version >= 0) {
       
-      result.stopTimeUs = decoder0.decodeInt64(32);
+      result.open = decoder0.decodeBool(12, 0);
     }
     if (mainDataHeader.version >= 0) {
       
-      result.open = decoder0.decodeBool(40, 0);
+      result.label = decoder0.decodeString(16, false);
     }
     return result;
   }
@@ -86,67 +71,40 @@ class FlogDescription extends bindings.Struct {
   void encode(bindings.Encoder encoder) {
     var encoder0 = encoder.getStructEncoderAtOffset(kVersions.last);
     try {
-      encoder0.encodeString(label, 8, false);
-    } on bindings.MojoCodecError catch(e) {
-      e.message = "Error encountered while encoding field "
-          "label of struct FlogDescription: $e";
-      rethrow;
-    }
-    try {
-      encoder0.encodeUint32(logId, 16);
+      encoder0.encodeUint32(logId, 8);
     } on bindings.MojoCodecError catch(e) {
       e.message = "Error encountered while encoding field "
           "logId of struct FlogDescription: $e";
       rethrow;
     }
     try {
-      encoder0.encodeUint32(entryCount, 20);
-    } on bindings.MojoCodecError catch(e) {
-      e.message = "Error encountered while encoding field "
-          "entryCount of struct FlogDescription: $e";
-      rethrow;
-    }
-    try {
-      encoder0.encodeInt64(startTimeUs, 24);
-    } on bindings.MojoCodecError catch(e) {
-      e.message = "Error encountered while encoding field "
-          "startTimeUs of struct FlogDescription: $e";
-      rethrow;
-    }
-    try {
-      encoder0.encodeInt64(stopTimeUs, 32);
+      encoder0.encodeBool(open, 12, 0);
     } on bindings.MojoCodecError catch(e) {
       e.message = "Error encountered while encoding field "
-          "stopTimeUs of struct FlogDescription: $e";
+          "open of struct FlogDescription: $e";
       rethrow;
     }
     try {
-      encoder0.encodeBool(open, 40, 0);
+      encoder0.encodeString(label, 16, false);
     } on bindings.MojoCodecError catch(e) {
       e.message = "Error encountered while encoding field "
-          "open of struct FlogDescription: $e";
+          "label of struct FlogDescription: $e";
       rethrow;
     }
   }
 
   String toString() {
     return "FlogDescription("
-           "label: $label" ", "
            "logId: $logId" ", "
-           "entryCount: $entryCount" ", "
-           "startTimeUs: $startTimeUs" ", "
-           "stopTimeUs: $stopTimeUs" ", "
-           "open: $open" ")";
+           "open: $open" ", "
+           "label: $label" ")";
   }
 
   Map toJson() {
     Map map = new Map();
-    map["label"] = label;
     map["logId"] = logId;
-    map["entryCount"] = entryCount;
-    map["startTimeUs"] = startTimeUs;
-    map["stopTimeUs"] = stopTimeUs;
     map["open"] = open;
+    map["label"] = label;
     return map;
   }
 }
@@ -410,6 +368,64 @@ class FlogChannelMessageEntryDetails extends bindings.Struct {
 }
 
 
+class FlogChannelDeletionEntryDetails extends bindings.Struct {
+  static const List<bindings.StructDataHeader> kVersions = const [
+    const bindings.StructDataHeader(8, 0)
+  ];
+
+  FlogChannelDeletionEntryDetails() : super(kVersions.last.size);
+
+  static FlogChannelDeletionEntryDetails deserialize(bindings.Message message) {
+    var decoder = new bindings.Decoder(message);
+    var result = decode(decoder);
+    if (decoder.excessHandles != null) {
+      decoder.excessHandles.forEach((h) => h.close());
+    }
+    return result;
+  }
+
+  static FlogChannelDeletionEntryDetails decode(bindings.Decoder decoder0) {
+    if (decoder0 == null) {
+      return null;
+    }
+    FlogChannelDeletionEntryDetails result = new FlogChannelDeletionEntryDetails();
+
+    var mainDataHeader = decoder0.decodeStructDataHeader();
+    if (mainDataHeader.version <= kVersions.last.version) {
+      // Scan in reverse order to optimize for more recent versions.
+      for (int i = kVersions.length - 1; i >= 0; --i) {
+        if (mainDataHeader.version >= kVersions[i].version) {
+          if (mainDataHeader.size == kVersions[i].size) {
+            // Found a match.
+            break;
+          }
+          throw new bindings.MojoCodecError(
+              'Header size doesn\'t correspond to known version size.');
+        }
+      }
+    } else if (mainDataHeader.size < kVersions.last.size) {
+      throw new bindings.MojoCodecError(
+        'Message newer than the last known version cannot be shorter than '
+        'required by the last known version.');
+    }
+    return result;
+  }
+
+  void encode(bindings.Encoder encoder) {
+    encoder.getStructEncoderAtOffset(kVersions.last);
+  }
+
+  String toString() {
+    return "FlogChannelDeletionEntryDetails("")";
+  }
+
+  Map toJson() {
+    Map map = new Map();
+    return map;
+  }
+}
+
+
 class _FlogServiceCreateLoggerParams extends bindings.Struct {
   static const List<bindings.StructDataHeader> kVersions = const [
     const bindings.StructDataHeader(24, 0)
@@ -1098,11 +1114,9 @@ class _FlogReaderGetEntriesParams extends bindings.Struct {
 
 class FlogReaderGetEntriesResponseParams extends bindings.Struct {
   static const List<bindings.StructDataHeader> kVersions = const [
-    const bindings.StructDataHeader(24, 0)
+    const bindings.StructDataHeader(16, 0)
   ];
   List<FlogEntry> entries = null;
-  int entryCount = 0;
-  bool open = false;
 
   FlogReaderGetEntriesResponseParams() : super(kVersions.last.size);
 
@@ -1152,14 +1166,6 @@ class FlogReaderGetEntriesResponseParams extends bindings.Struct {
         }
       }
     }
-    if (mainDataHeader.version >= 0) {
-      
-      result.entryCount = decoder0.decodeUint32(16);
-    }
-    if (mainDataHeader.version >= 0) {
-      
-      result.open = decoder0.decodeBool(20, 0);
-    }
     return result;
   }
 
@@ -1179,34 +1185,16 @@ class FlogReaderGetEntriesResponseParams extends bindings.Struct {
           "entries of struct FlogReaderGetEntriesResponseParams: $e";
       rethrow;
     }
-    try {
-      encoder0.encodeUint32(entryCount, 16);
-    } on bindings.MojoCodecError catch(e) {
-      e.message = "Error encountered while encoding field "
-          "entryCount of struct FlogReaderGetEntriesResponseParams: $e";
-      rethrow;
-    }
-    try {
-      encoder0.encodeBool(open, 20, 0);
-    } on bindings.MojoCodecError catch(e) {
-      e.message = "Error encountered while encoding field "
-          "open of struct FlogReaderGetEntriesResponseParams: $e";
-      rethrow;
-    }
   }
 
   String toString() {
     return "FlogReaderGetEntriesResponseParams("
-           "entries: $entries" ", "
-           "entryCount: $entryCount" ", "
-           "open: $open" ")";
+           "entries: $entries" ")";
   }
 
   Map toJson() {
     Map map = new Map();
     map["entries"] = entries;
-    map["entryCount"] = entryCount;
-    map["open"] = open;
     return map;
   }
 }
@@ -1216,6 +1204,7 @@ class FlogReaderGetEntriesResponseParams extends bindings.Struct {
 enum FlogEntryDetailsTag {
   channelCreation,
   channelMessage,
+  channelDeletion,
   unknown
 }
 
@@ -1223,11 +1212,13 @@ class FlogEntryDetails extends bindings.Union {
   static final _tagToInt = const {
     FlogEntryDetailsTag.channelCreation: 0,
     FlogEntryDetailsTag.channelMessage: 1,
+    FlogEntryDetailsTag.channelDeletion: 2,
   };
 
   static final _intToTag = const {
     0: FlogEntryDetailsTag.channelCreation,
     1: FlogEntryDetailsTag.channelMessage,
+    2: FlogEntryDetailsTag.channelDeletion,
   };
 
   var _data;
@@ -1256,6 +1247,17 @@ class FlogEntryDetails extends bindings.Union {
     _tag = FlogEntryDetailsTag.channelMessage;
     _data = value;
   }
+  FlogChannelDeletionEntryDetails get channelDeletion {
+    if (_tag != FlogEntryDetailsTag.channelDeletion) {
+      throw new bindings.UnsetUnionTagError(_tag, FlogEntryDetailsTag.channelDeletion);
+    }
+    return _data;
+  }
+
+  set channelDeletion(FlogChannelDeletionEntryDetails value) {
+    _tag = FlogEntryDetailsTag.channelDeletion;
+    _data = value;
+  }
 
   static FlogEntryDetails decode(bindings.Decoder decoder0, int offset) {
     int size = decoder0.decodeUint32(offset);
@@ -1277,6 +1279,11 @@ class FlogEntryDetails extends bindings.Union {
         var decoder1 = decoder0.decodePointer(offset + 8, false);
         result.channelMessage = FlogChannelMessageEntryDetails.decode(decoder1);
         break;
+      case FlogEntryDetailsTag.channelDeletion:
+        
+        var decoder1 = decoder0.decodePointer(offset + 8, false);
+        result.channelDeletion = FlogChannelDeletionEntryDetails.decode(decoder1);
+        break;
       default:
         throw new bindings.MojoCodecError("Bad union tag: $tag");
     }
@@ -1295,6 +1302,9 @@ class FlogEntryDetails extends bindings.Union {
       case FlogEntryDetailsTag.channelMessage:
         encoder0.encodeStruct(channelMessage, offset + 8, false);
         break;
+      case FlogEntryDetailsTag.channelDeletion:
+        encoder0.encodeStruct(channelDeletion, offset + 8, false);
+        break;
       default:
         throw new bindings.MojoCodecError("Bad union tag: $_tag");
     }
@@ -1309,6 +1319,9 @@ class FlogEntryDetails extends bindings.Union {
       case FlogEntryDetailsTag.channelMessage:
         result += "channelMessage";
         break;
+      case FlogEntryDetailsTag.channelDeletion:
+        result += "channelDeletion";
+        break;
       default:
         result += "unknown";
     }
@@ -2110,11 +2123,9 @@ class _FlogReaderStubControl
   String get serviceName => FlogReader.serviceName;
 
 
-  static FlogReaderGetEntriesResponseParams _flogReaderGetEntriesResponseParamsFactory(List<FlogEntry> entries, int entryCount, bool open) {
+  static FlogReaderGetEntriesResponseParams _flogReaderGetEntriesResponseParamsFactory(List<FlogEntry> entries) {
     var result = new FlogReaderGetEntriesResponseParams();
     result.entries = entries;
-    result.entryCount = entryCount;
-    result.open = open;
     return result;
   }