[llvm] [llvm]Add a simple Telemetry framework (PR #102323)

[James Henderson via llvm-commits]

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@@ -23,82 +67,94 @@
 namespace llvm {
 namespace telemetry {
 
-using SteadyTimePoint = std::chrono::time_point<std::chrono::steady_clock>;
-
 struct TelemetryConfig {
   // If true, telemetry will be enabled.
-  bool enable_telemetry;
-
-  // 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;
+  bool EnableTelemetry;
+
+  // Implementation-defined names of additional destinations to send
+  // telemetry data (Could be stdout, stderr, or some local paths, etc).
+  //
+  // These strings will be interpreted by the vendor's code.
+  // So the users must pick the  from their vendor's pre-defined
+  // set of Destinations.
+  std::vector<std::string> AdditionalDestinations;
 };
 
+using SteadyTimePoint = std::chrono::time_point<std::chrono::steady_clock>;
+
 struct TelemetryEventStats {
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jh7370 wrote:

This needs a comment explaining what its purpose is.

https://github.com/llvm/llvm-project/pull/102323