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SweepStore/cpp/debug/debug_step_by_step.cpp

105 lines
3.4 KiB
C++

#include <iostream>
#include <filesystem>
#include <fstream>
#include <iomanip>
#include "../binary_table.h"
void dumpFile(const std::string& filename) {
std::ifstream file(filename, std::ios::binary);
file.seekg(0, std::ios::end);
size_t size = file.tellg();
file.seekg(0, std::ios::beg);
std::vector<uint8_t> data(size);
file.read(reinterpret_cast<char*>(data.data()), size);
std::cout << "File size: " << size << " bytes" << std::endl;
for (size_t i = 0; i < std::min(size, size_t(80)); i++) {
if (i % 16 == 0) std::cout << std::hex << i << ": ";
std::cout << std::hex << std::setfill('0') << std::setw(2) << (int)data[i] << " ";
if (i % 16 == 15) std::cout << std::endl;
}
if (size % 16 != 0) std::cout << std::endl;
}
int main() {
using namespace bt;
const std::string filename = "debug_step.bin";
if (std::filesystem::exists(filename)) {
std::filesystem::remove(filename);
}
BinaryTable table(filename);
table.initialize();
std::cout << "=== Step-by-step Address Table Debug ===\n" << std::endl;
std::cout << "After initialize():" << std::endl;
dumpFile(filename);
std::cout << "\n1. Before storing key1:" << std::endl;
// Try reading the address table header
{
std::ifstream file(filename, std::ios::binary);
int64_t addr;
file.read(reinterpret_cast<char*>(&addr), 8);
std::cout << "Address table pointer: " << addr << std::endl;
}
std::cout << "\n2. Storing key1..." << std::endl;
table.set<int32_t>("key1", 100);
std::cout << "After storing key1:" << std::endl;
dumpFile(filename);
// Try reading the address table
{
std::ifstream file(filename, std::ios::binary);
int64_t addr;
file.read(reinterpret_cast<char*>(&addr), 8);
std::cout << "Address table pointer: " << addr << std::endl;
if (addr != -1) {
file.seekg(addr);
uint8_t type;
int32_t count;
file.read(reinterpret_cast<char*>(&type), 1);
file.read(reinterpret_cast<char*>(&count), 4);
std::cout << "Address table type: " << (int)type << ", count: " << count << std::endl;
}
}
std::cout << "\n3. Storing key2..." << std::endl;
table.set<int32_t>("key2", 200);
std::cout << "After storing key2:" << std::endl;
dumpFile(filename);
// Try reading the address table again
{
std::ifstream file(filename, std::ios::binary);
int64_t addr;
file.read(reinterpret_cast<char*>(&addr), 8);
std::cout << "Address table pointer: " << addr << std::endl;
if (addr != -1) {
file.seekg(addr);
uint8_t type;
int32_t count;
file.read(reinterpret_cast<char*>(&type), 1);
file.read(reinterpret_cast<char*>(&count), 4);
std::cout << "Address table type: " << (int)type << ", count: " << count << std::endl;
// Read the entries
for (int32_t i = 0; i < count && i < 5; i++) {
int64_t keyHash, valueAddr;
file.read(reinterpret_cast<char*>(&keyHash), 8);
file.read(reinterpret_cast<char*>(&valueAddr), 8);
std::cout << "Entry " << i << ": hash=" << keyHash << ", addr=" << valueAddr << std::endl;
}
}
}
return 0;
}