fc4d87100a
Background: Telemetry code isn't always built (controlled by this LLVM_BUILD_TELEMETRY cmake flag) This means users of the library may not have the library. So we're definding the `-DLLVM_BUILD_TELEMETRY` to be used in ifdef.
77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
//===-- Telemetry.cpp -----------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Config/llvm-config.h"
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#ifdef LLVM_BUILD_TELEMETRY
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#include "lldb/Core/Telemetry.h"
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#include "lldb/Core/Debugger.h"
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#include "lldb/Utility/LLDBLog.h"
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#include "lldb/Utility/UUID.h"
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#include "lldb/lldb-enumerations.h"
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#include "lldb/lldb-forward.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/RandomNumberGenerator.h"
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#include "llvm/Telemetry/Telemetry.h"
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#include <chrono>
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#include <cstdlib>
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#include <memory>
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#include <string>
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#include <utility>
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namespace lldb_private {
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namespace telemetry {
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using ::llvm::Error;
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using ::llvm::telemetry::Destination;
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using ::llvm::telemetry::Serializer;
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using ::llvm::telemetry::TelemetryInfo;
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static uint64_t ToNanosec(const SteadyTimePoint Point) {
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return std::chrono::nanoseconds(Point.time_since_epoch()).count();
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}
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void LLDBBaseTelemetryInfo::serialize(Serializer &serializer) const {
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serializer.write("entry_kind", getKind());
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serializer.write("session_id", SessionId);
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serializer.write("start_time", ToNanosec(start_time));
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if (end_time.has_value())
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serializer.write("end_time", ToNanosec(end_time.value()));
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}
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[[maybe_unused]] static std::string MakeUUID(lldb_private::Debugger *debugger) {
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uint8_t random_bytes[16];
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if (auto ec = llvm::getRandomBytes(random_bytes, 16)) {
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LLDB_LOG(GetLog(LLDBLog::Object),
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"Failed to generate random bytes for UUID: {0}", ec.message());
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// fallback to using timestamp + debugger ID.
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return llvm::formatv(
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"{0}_{1}", std::chrono::steady_clock::now().time_since_epoch().count(),
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debugger->GetID());
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}
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return lldb_private::UUID(random_bytes).GetAsString();
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}
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TelemetryManager::TelemetryManager(
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std::unique_ptr<llvm::telemetry::Config> config)
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: m_config(std::move(config)) {}
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llvm::Error TelemetryManager::preDispatch(TelemetryInfo *entry) {
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// Do nothing for now.
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// In up-coming patch, this would be where the manager
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// attach the session_uuid to the entry.
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return Error::success();
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}
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} // namespace telemetry
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} // namespace lldb_private
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#endif // LLVM_BUILD_TELEMETRY
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