[lldb] [llvm] [lldb][telemetry] Implement LLDB Telemetry (part 1) (PR #119716)

[Pavel Labath via llvm-commits]

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@@ -0,0 +1,95 @@
+
+//===-- Telemetry.cpp -----------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+#include "lldb/Core/Telemetry.h"
+
+#include <chrono>
+#include <cstdlib>
+#include <ctime>
+#include <memory>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "lldb/Core/Debugger.h"
+#include "lldb/Target/Statistics.h"
+#include "lldb/Utility/ConstString.h"
+#include "lldb/Utility/LLDBLog.h"
+#include "lldb/Utility/UUID.h"
+#include "lldb/Version/Version.h"
+#include "lldb/lldb-enumerations.h"
+#include "lldb/lldb-forward.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/RandomNumberGenerator.h"
+#include "llvm/Telemetry/Telemetry.h"
+
+namespace lldb_private {
+
+using ::llvm::Error;
+using ::llvm::telemetry::Destination;
+using ::llvm::telemetry::TelemetryInfo;
+
+static unsigned long long ToNanosec(const SteadyTimePoint Point) {
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labath wrote:

`unsigned long long` is also an unusual type for the number of nanoseconds. The reason for implementing ~all integral types in the generic implementation was so that you can use ~any type here, and things will just work. I'd use `uint64_t` here, but you can also go with `std::chrono::nanoseconds::rep` if you want to be fancy.

https://github.com/llvm/llvm-project/pull/119716