Upgraded RPM Calculation Support (Take 1)

This patch begins the work on updated RPM calculations using
the httptrace infrastructure. Because we are still not able
to break out the TLS handshake time due to upstream bugs, there
are some workarounds in place. However, the numbers appear much
more sane.

1 files changed, 50 insertions, 0 deletions

diff --git a/stats/stats.go b/stats/stats.go
new file mode 100644
index 0000000..a636326
--- /dev/null
+++ b/stats/stats.go
@@ -0,0 +1,50 @@
+package stats
+
+import (
+	"crypto/tls"
+	"fmt"
+	"net/http/httptrace"
+	"time"
+
+	"github.com/network-quality/goresponsiveness/utilities"
+)
+
+type TraceStats struct {
+	DnsStart               httptrace.DNSStartInfo
+	DnsDone                httptrace.DNSDoneInfo
+	ConnInfo               httptrace.GotConnInfo
+	HttpInfo               httptrace.WroteRequestInfo
+	TLSConnInfo            tls.ConnectionState
+	ConnectDoneError       error
+	DnsStartTime           time.Time
+	DnsDoneTime            time.Time
+	TLSStartTime           utilities.Optional[time.Time]
+	TLSDoneTime            utilities.Optional[time.Time]
+	ConnectStartTime       time.Time
+	ConnectDoneTime        time.Time
+	GetConnectionStartTime time.Time
+	GetConnectionDoneTime  time.Time
+	HttpWroteRequestTime   time.Time
+	HttpResponseReadyTime  time.Time
+}
+
+func NewStats() *TraceStats {
+	return &TraceStats{}
+}
+
+func (s *TraceStats) String() string {
+	return fmt.Sprintf("DnsStart: %v\n", s.DnsStart) +
+		fmt.Sprintf("DnsDone: %v\n", s.DnsDone) +
+		fmt.Sprintf("ConnInfo: %v\n", s.ConnInfo) +
+		fmt.Sprintf("HttpInfo: %v\n", s.HttpInfo) +
+		fmt.Sprintf("TLSConnInfo: %v\n", s.TLSConnInfo) +
+		fmt.Sprintf("ConnectDoneError: %v\n", s.ConnectDoneError) +
+		fmt.Sprintf("DnsStartTime: %v\n", s.DnsStartTime) +
+		fmt.Sprintf("DnsDoneTime: %v\n", s.DnsDoneTime) +
+		fmt.Sprintf("TLSDoneTime: %v\n", s.TLSDoneTime) +
+		fmt.Sprintf("ConnectStartTime: %v\n", s.ConnectStartTime) +
+		fmt.Sprintf("ConnectDoneTime: %v\n", s.ConnectDoneTime) +
+		fmt.Sprintf("GetConnectionStartTime: %v\n", s.GetConnectionStartTime) +
+		fmt.Sprintf("GetConnectionDoneTime: %v\n", s.GetConnectionDoneTime) +
+		fmt.Sprintf("HttpResponseReadyTime: %v\n", s.HttpResponseReadyTime)
+}