Fix sparse index handling, add index params.

logdog/api/logpb/log.pb.go

 // Code generated by protoc-gen-go.
 // source: github.com/luci/luci-go/logdog/api/logpb/log.proto
 // DO NOT EDIT!
 
 package logpb
 
 import proto "github.com/golang/protobuf/proto"
 import fmt "fmt"
 import math "math"
 import google_protobuf "github.com/luci/luci-go/common/proto/google"
@@ skipping 394 matching lines @@
         //
         // A series of ascending-ordered Entry messages representing snapshots of an
         // archived log stream.
         //
         // Within this set of Entry messages, the "offset", "prefix_index",
         // "stream_index", and "time_offset" fields will be ascending.
         //
         // The frequency of Entry messages is not defined; it is up to the Archivist
         // process to choose a frequency.
         Entries []*LogIndex_Entry `protobuf:"bytes,2,rep,name=entries" json:"entries,omitempty"`
+        // *
+        // The last prefix index in the log stream.
+        //
+        // This is optional. If zero, there is either no information about the last
+        // prefix index, or there are zero entries in the prefix.
+        LastPrefixIndex uint64 `protobuf:"varint,3,opt,name=last_prefix_index,json=lastPrefixIndex" json:"last_prefix_index,omitempty"`
+        // *
+        // The last stream index in the log stream.
+        //
+        // This is optional. If zero, there is either no information about the last
+        // stream index, or there are zero entries in the stream.
+        LastStreamIndex uint64 `protobuf:"varint,4,opt,name=last_stream_index,json=lastStreamIndex" json:"last_stream_index,omitempty"`
+        // *
+        // The number of log entries in the stream.
+        //
+        // This is optional. If zero, there is either no information about the number
+        // of log entries, or there are zero entries in the stream.
+        LogEntryCount uint64 `protobuf:"varint,5,opt,name=log_entry_count,json=logEntryCount" json:"log_entry_count,omitempty"`
 }
 
 func (m *LogIndex) Reset()                    { *m = LogIndex{} }
 func (m *LogIndex) String() string            { return proto.CompactTextString(m) }
 func (*LogIndex) ProtoMessage()               {}
 func (*LogIndex) Descriptor() ([]byte, []int) { return fileDescriptor1, []int{5} }
 
 func (m *LogIndex) GetDesc() *LogStreamDescriptor {
         if m != nil {
                 return m.Desc
@@ skipping 69 matching lines @@
         proto.RegisterType((*Datagram_Partial)(nil), "logpb.Datagram.Partial")
         proto.RegisterType((*LogEntry)(nil), "logpb.LogEntry")
         proto.RegisterType((*LogIndex)(nil), "logpb.LogIndex")
         proto.RegisterType((*LogIndex_Entry)(nil), "logpb.LogIndex.Entry")
         proto.RegisterEnum("logpb.StreamType", StreamType_name, StreamType_value)
 }
 
 func init() { proto.RegisterFile("github.com/luci/luci-go/logdog/api/logpb/log.proto", fileDescriptor1) }
 
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