113 lines
2.6 KiB
C++
113 lines
2.6 KiB
C++
//
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// Created by selim on 27.11.22.
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//
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#include "Snapshot.h"
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#include <stdexcept>
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#include <ranges>
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#include <sstream>
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namespace Dart {
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Snapshot::Snapshot(const std::byte *data) {
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_magic = *(uint32_t*)data;
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data += sizeof(_magic);
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if(_magic != MAGIC) {
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throw std::runtime_error("Snapshot magic mismatch");
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}
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_size = *(uint64_t*)data;
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data += sizeof(_size);
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_kind = *(Kind*)data;
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data += sizeof(Kind);
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_versionHash.assign((char*)data, 32);
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data += _versionHash.size();
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auto features = std::string((char*)data);
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data += features.size() + 1;
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_features = split(features);
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_baseObjectsCount = Leb128Int(data);
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data += _baseObjectsCount.size();
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_allObjectsCount = Leb128Int(data);
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data += _allObjectsCount.size();
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_clustersCount = Leb128Int(data);
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data += _clustersCount.size();
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_fieldTableLength = Leb128Int(data);
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data += _fieldTableLength.size();
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auto nextInt = Leb128Int(data);
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auto val = nextInt.value();
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auto size = nextInt.size();
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}
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uint64_t Snapshot::size() const {
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return _size;
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}
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std::string Snapshot::kindString() const {
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switch (_kind) {
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case Kind::FULL: return "Full";
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case Kind::FULL_JIT: return "Full JIT";
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case Kind::FULL_AOT: return "Full AOT";
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case Kind::MESSAGE: return "Message";
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case Kind::NONE: return "None";
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case Kind::INVALID: return "Invalid";
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}
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return "";
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}
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std::string Snapshot::versionHash() const {
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return _versionHash;
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}
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std::string Snapshot::featuresString() const {
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std::stringstream ss;
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size_t size = _features.size();
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for(size_t i = 0; i < size; ++i) {
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ss << _features[i];
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if(i < size - 1) {
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ss << ", ";
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}
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}
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return ss.str();
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}
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std::vector<std::string> Snapshot::split(const std::string &str) {
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std::vector<std::string> result;
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std::stringstream ss(str);
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std::string item;
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while (std::getline (ss, item, ' ')) {
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result.push_back (item);
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}
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return result;
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}
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uint64_t Snapshot::baseObjectsCount() const {
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return _baseObjectsCount.value();
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}
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uint64_t Snapshot::allObjectsCount() const {
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return _allObjectsCount.value();
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}
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uint64_t Snapshot::clustersCount() const {
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return _clustersCount.value();
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}
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uint64_t Snapshot::fieldTableLength() const {
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return _fieldTableLength.value();
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}
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}
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