1#include "nix-eval/src/logging.rs"2#include "logging.hh"3#include <nix/util/logging.hh>45using namespace nix;67struct TracingLogger : Logger {8 TracingLogger() {}910 bool isVerbose() override { return true; }11 void log(Verbosity lvl, std::string_view s) override {12 rust::Slice<const unsigned char> str(reinterpret_cast<const unsigned char*>(s.data()), s.size());13 emit_log(lvl, str);14 }15 void logEI(const ErrorInfo &ei) override {16 auto s = ei.msg.str();17 rust::Slice<const unsigned char> str(reinterpret_cast<const unsigned char*>(s.data()), s.size());18 emit_log(ei.level, str);19 }2021 void startActivity(ActivityId act, Verbosity lvl, ActivityType type,22 const std::string &s, const Fields &fields,23 ActivityId parent) override {24 auto b = new_start_activity(act, lvl, type);25 for (auto &f : fields) {26 if (f.type == Logger::Field::tInt) {27 b->add_int_field(f.i);28 } else if (f.type == Logger::Field::tString) {29 auto s = &f.s;30 rust::Slice<const unsigned char> str(reinterpret_cast<const unsigned char*>(s->data()), s->size());31 b->add_string_field(str);32 } else {33 unreachable();34 }35 }36 b->emit(parent, s);37 };3839 void stopActivity(ActivityId act) override { emit_stop(act); };4041 void result(ActivityId act, ResultType type, const Fields &fields) override {42 auto b = new_start_activity(act, 0, type);43 for (auto &f : fields) {44 if (f.type == Logger::Field::tInt) {45 b->add_int_field(f.i);46 } else if (f.type == Logger::Field::tString) {47 auto s = &f.s;48 rust::Slice<const unsigned char> str(reinterpret_cast<const unsigned char*>(s->data()), s->size());49 b->add_string_field(str);50 } else {51 unreachable();52 }53 }54 b->emit_result(type);55 };5657 void writeToStdout(std::string_view s) override {58 emit_warn("writeToStdout() called, but unsupported");59 }60 void warn(const std::string &msg) override { emit_warn(msg); }6162 virtual std::optional<char> ask(std::string_view s) {63 emit_warn("ask() called, but unsupported");64 return {};65 }66};6768extern "C" {69void apply_tracing_logger() {70 logger = std::make_unique<TracingLogger>();71 // verbosity = lvlVomit;72}73}