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@@ -0,0 +1,237 @@
+#ifndef LLDB_CORE_TELEMETRY_H
+#define LLDB_CORE_TELEMETRY_H
+
+#include <chrono>
+#include <ctime>
+#include <memory>
+#include <optional>
+#include <string>
+
+#include "lldb/Interpreter/CommandReturnObject.h"
+#include "lldb/Utility/StructuredData.h"
+#include "lldb/lldb-forward.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/StringRef.h"
+
+namespace lldb_private {
+
+using SteadyTimePoint = std::chrono::time_point<std::chrono::steady_clock>;
+
+struct TelemetryEventStats {
+ // REQUIRED: Start time of event
+ SteadyTimePoint m_start;
+ // OPTIONAL: End time of event - may be empty if not meaningful.
+ std::optional<SteadyTimePoint> m_end;
+
+ // TBD: could add some memory stats here too?
+
+ TelemetryEventStats() = default;
+ TelemetryEventStats(SteadyTimePoint start) : m_start(start) {}
+ TelemetryEventStats(SteadyTimePoint start, SteadyTimePoint end)
+ : m_start(start), m_end(end) {}
+
+ std::optional<std::chrono::nanoseconds> Duration() const {
+ if (m_end.has_value())
+ return *m_end - m_start;
+ else
+ return std::nullopt;
+ }
+};
+
+struct LoggerConfig {
+ // If true, loggings will be enabled.
+ bool enable_logging;
+
+ // Additional destinations to send the logged entries.
+ // Could be stdout, stderr, or some local paths.
+ // Note: these are destinations are __in addition to__ whatever the default
+ // destination(s) are, as implemented by vendors.
+ std::vector<std::string> additional_destinations;
+};
+
+// The base class contains the basic set of data.
+// Downstream implementations can add more fields as needed.
+struct BaseTelemetryEntry {
+ // A "session" corresponds to every time lldb starts.
+ // All entries emitted for the same session will have
+ // the same session_uuid
+ std::string session_uuid;
+
+ TelemetryEventStats stats;
+
+ // Counting number of entries.
+ // (For each set of entries with the same session_uuid, this value should
+ // be unique for each entry)
+ size_t counter;
+
+ virtual ~BaseTelemetryEntry() = default;
+ virtual std::string ToString() const;
+};
+
+struct ExitDescription {
----------------
adrian-prantl wrote:
And add top-level doxygen comments to each new datatype?
https://github.com/llvm/llvm-project/pull/87815
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