Default timestamp to -1 for envoy_final_stream_intel

library/common/http/client.h

@@ -280,7 +280,8 @@ class Client : public Logger::Loggable<Logger::Id::http> {
     bool explicit_flow_control_ = false;
     // Latest intel data retrieved from the StreamInfo.
     envoy_stream_intel stream_intel_{-1, -1, 0};
-    envoy_final_stream_intel envoy_final_stream_intel_;
+    envoy_final_stream_intel envoy_final_stream_intel_{-1, -1, -1, -1, -1, -1, -1,
+                                                       -1, -1, -1, -1, 0,  0,  0};
     StreamInfo::BytesMeterSharedPtr bytes_meter_;
   };
 

library/common/stream_info/extra_stream_info.cc

@@ -6,14 +6,14 @@ namespace Envoy {
 namespace StreamInfo {
 namespace {
 
-void setFromOptional(uint64_t& to_set, const absl::optional<MonotonicTime>& time) {
+void setFromOptional(int64_t& to_set, const absl::optional<MonotonicTime>& time) {
   if (time.has_value()) {
     to_set = std::chrono::duration_cast<std::chrono::milliseconds>(time.value().time_since_epoch())
                  .count();
   }
 }
 
-void setFromOptional(uint64_t& to_set, absl::optional<std::chrono::nanoseconds> time, long offset) {
+void setFromOptional(int64_t& to_set, absl::optional<std::chrono::nanoseconds> time, long offset) {
   if (time.has_value()) {
     to_set = offset + std::chrono::duration_cast<std::chrono::milliseconds>(time.value()).count();
   }

library/common/types/c_types.h

@@ -157,34 +157,36 @@ typedef struct {
 
 /**
  * Contains internal HTTP stream metrics which sent at stream end.
+ *
+ * Note: for the signed fields, -1 means not present.
  */
 typedef struct {
   // The time the request started, in ms since the epoch.
-  uint64_t request_start_ms;
+  int64_t request_start_ms;
   // The time the DNS resolution for this request started, in ms since the epoch.
-  uint64_t dns_start_ms;
+  int64_t dns_start_ms;
   // The time the DNS resolution for this request completed, in ms since the epoch.
-  uint64_t dns_end_ms;
+  int64_t dns_end_ms;
   // The time the upstream connection started, in ms since the epoch.
   // This may not be set if socket_reused is false.
-  uint64_t connect_start_ms;
+  int64_t connect_start_ms;
   // The time the upstream connection completed, in ms since the epoch.
   // This may not be set if socket_reused is false.
-  uint64_t connect_end_ms;
+  int64_t connect_end_ms;
   // The time the SSL handshake started, in ms since the epoch.
   // This may not be set if socket_reused is false.
-  uint64_t ssl_start_ms;
+  int64_t ssl_start_ms;
   // The time the SSL handshake completed, in ms since the epoch.
   // This may not be set if socket_reused is false.
-  uint64_t ssl_end_ms;
+  int64_t ssl_end_ms;
   // The time the first byte of the request was sent upstream, in ms since the epoch.
-  uint64_t sending_start_ms;
+  int64_t sending_start_ms;
   // The time the last byte of the request was sent upstream, in ms since the epoch.
-  uint64_t sending_end_ms;
+  int64_t sending_end_ms;
   // The time the first byte of the response was received, in ms since the epoch.
-  uint64_t response_start_ms;
+  int64_t response_start_ms;
   // The time the last byte of the request was received, in ms since the epoch.
-  uint64_t request_end_ms;
+  int64_t request_end_ms;
   // True if the upstream socket had been used previously.
   uint64_t socket_reused;
   // The number of bytes sent upstream.

library/swift/FinalStreamIntel.swift

@@ -2,30 +2,31 @@
 import Foundation
 
 /// Exposes one time HTTP stream metrics, context, and other details.
+/// Note: -1 means "not present" for the fields of type Int64.
 @objcMembers
 public final class FinalStreamIntel: StreamIntel {
   /// The time the request started, in ms since the epoch.
-  public let requestStartMs: UInt64
+  public let requestStartMs: Int64
   /// The time the DNS resolution for this request started, in ms since the epoch.
-  public let dnsStartMs: UInt64
+  public let dnsStartMs: Int64
   /// The time the DNS resolution for this request completed, in ms since the epoch.
-  public let dnsEndMs: UInt64
+  public let dnsEndMs: Int64
   /// The time the upstream connection started, in ms since the epoch. (1)
-  public let connectStartMs: UInt64
+  public let connectStartMs: Int64
   /// The time the upstream connection completed, in ms since the epoch. (1)
-  public let connectEndMs: UInt64
+  public let connectEndMs: Int64
   /// The time the SSL handshake started, in ms since the epoch. (1)
-  public let sslStartMs: UInt64
+  public let sslStartMs: Int64
   /// The time the SSL handshake completed, in ms since the epoch. (1)
-  public let sslEndMs: UInt64
+  public let sslEndMs: Int64
   /// The time the first byte of the request was sent upstream, in ms since the epoch.
-  public let sendingStartMs: UInt64
+  public let sendingStartMs: Int64
   /// The time the last byte of the request was sent upstream, in ms since the epoch.
-  public let sendingEndMs: UInt64
+  public let sendingEndMs: Int64
   /// The time the first byte of the response was received, in ms since the epoch.
-  public let responseStartMs: UInt64
+  public let responseStartMs: Int64
   /// The time the last byte of the request was received, in ms since the epoch.
-  public let requestEndMs: UInt64
+  public let requestEndMs: Int64
   /// True if the upstream socket had been used previously.
   public let socketReused: Bool
   /// The number of bytes sent upstream.
@@ -39,17 +40,17 @@ public final class FinalStreamIntel: StreamIntel {
     streamId: Int64,
     connectionId: Int64,
     attemptCount: UInt64,
-    requestStartMs: UInt64,
-    dnsStartMs: UInt64,
-    dnsEndMs: UInt64,
-    connectStartMs: UInt64,
-    connectEndMs: UInt64,
-    sslStartMs: UInt64,
-    sslEndMs: UInt64,
-    sendingStartMs: UInt64,
-    sendingEndMs: UInt64,
-    responseStartMs: UInt64,
-    requestEndMs: UInt64,
+    requestStartMs: Int64,
+    dnsStartMs: Int64,
+    dnsEndMs: Int64,
+    connectStartMs: Int64,
+    connectEndMs: Int64,
+    sslStartMs: Int64,
+    sslEndMs: Int64,
+    sendingStartMs: Int64,
+    sendingEndMs: Int64,
+    responseStartMs: Int64,
+    requestEndMs: Int64,
     socketReused: Bool,
     sentByteCount: UInt64,
     receivedByteCount: UInt64