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329 Zeilen
7.3 KiB
329 Zeilen
7.3 KiB
#include <iostream>
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#include <fstream>
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#include <sstream>
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#include <variant>
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#include <chrono>
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#include <algorithm>
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#include "database.hpp"
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#include "network.hpp"
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#include <memory>
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#include <cstdlib>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <string.h>
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#include <stdio.h>
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#include "commander.hpp"
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int main(
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[[maybe_unused]] int argc,
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[[maybe_unused]] char** argv
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)
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{
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CMD::commander cmd_args(argc, argv);
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std::string database_str = "/data/";
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if(cmd_args.isFlagSet("-database"))
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{
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database_str = cmd_args.getFlagValue("-database");
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}
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std::string utest_str = "/tmp/";
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if(cmd_args.isFlagSet("-utest"))
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{
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utest_str = cmd_args.getFlagValue("-utest");
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}
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size_t database_size = 4096;
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if(cmd_args.isFlagSet("-page-count"))
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{
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try{
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database_size = std::stoll(cmd_args.getFlagValue("-page-count"));
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} catch (...) {
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std::cerr << "Invalid page-count value" << std::endl;
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return 1;
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}
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}
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size_t db_port = 20450;
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if(cmd_args.isFlagSet("-port"))
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{
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try{
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db_port = std::stoi(cmd_args.getFlagValue("-port"));
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if(db_port>std::numeric_limits<uint16_t>::max()) throw std::runtime_error("invalid_port");
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} catch (...) {
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std::cerr << "Invalid port value" << std::endl;
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return 1;
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}
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}
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#ifdef UNITTEST
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size_t utest_size = 4096;
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if(cmd_args.isFlagSet("-utest-count"))
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{
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try{
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utest_size = std::stoll(cmd_args.getFlagValue("-utest-count"));
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} catch (...) {
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std::cerr << "Invalid utest-count value" << std::endl;
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return 1;
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}
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}
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{
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database db(database::create(utest_str, utest_size*2));
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db_page v;
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v.fill(1);
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record_identifier tar;
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auto begin = std::chrono::high_resolution_clock::now();
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for(size_t idx=0;idx<utest_size;idx++)
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{
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tar.y.internal = idx;
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db.write(tar, v);
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}
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auto durr = std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::high_resolution_clock::now() - begin)/utest_size;
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std::cerr << "durr/elem = " << durr.count() << "ns/op" << std::endl;
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auto a = db.read(tar);
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if(a.second[0] != 1) {
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std::cerr << "read failed" << std::endl;
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}
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db.remove(tar);
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a = db.read(tar);
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if(a.second[0] == 1) {
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std::cerr << "remove failed" << std::endl;
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}
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{
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db.write(tar, v);
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a = db.read(tar);
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if(a.second[0] != 1) {
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std::cerr << "read failed" << std::endl;
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}
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db.remove(tar);
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a = db.read(tar);
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if(a.second[0] != 0) {
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std::cerr << "remove failed" << std::endl;
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}
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v.fill(2);
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db.write(tar, v);
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}
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database reop(database::open(utest_str));
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{
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a = reop.read(tar);
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if(a.second[0] != 2) {
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std::cerr << "reopen read failed" << std::endl;
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}
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v.fill(3);
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reop.write(tar, v);
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a = reop.read(tar);
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if(a.second[0] != 3) {
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std::cerr << "reopen write failed" << std::endl;
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}
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}
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reop.pages.clear();
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reop.metadata.clear();
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reop.records.clear();
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reop.delete_table.clear();
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db.pages.clear();
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db.metadata.clear();
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db.records.clear();
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db.delete_table.clear();
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}
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#endif
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if(cmd_args.isFlagSet("-create"))
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{
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try{
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database creat(database::create(database_str, database_size));
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std::cout << "Created" << std::endl;
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return 0;
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} catch (...) {
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std::cerr << "Creating of " << database_str << " of " << database_size << " pages failed" << std::endl;
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return 1;
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}
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}
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try{
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database run_db(database::open(database_str));
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auto soc = socket(AF_INET, SOCK_DGRAM, 0);
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struct sockaddr_in addr;
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addr.sin_family = AF_INET;
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addr.sin_port = htons(db_port);
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memset((void*)&addr.sin_addr, 0, sizeof(addr.sin_addr));
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bind(soc,(struct sockaddr*)&addr,sizeof(addr));
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do{
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received_data recv;
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sending_data reply;
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sockaddr_in client;
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socklen_t packet_sz;
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size_t reply_size;
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recvfrom(
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soc,
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(void*)&recv,
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sizeof(received_data),
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MSG_WAITFORONE,
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(struct sockaddr*)&client,
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&packet_sz
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);
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if(packet_sz < sizeof(db_op)) continue;
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switch (static_cast<db_op>(recv.op))
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{
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case db_op::version:
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reply.rep_id = recv.rep_id;
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reply.identifier.record_head.split.x = 1;
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reply_size = sizeof(reply.rep_id) + sizeof(reply.identifier.record_head.split.x);
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break;
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case db_op::read:
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{
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reply.rep_id = recv.rep_id;
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auto req = run_db.read(recv.identifier);
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if(req.first.timestamp != 0)
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{
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reply.identifier = req.first;
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reply.page = req.second;
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reply_size = sizeof(reply);
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}
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else
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{
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reply_size = sizeof(reply.rep_id) + sizeof(reply.identifier);
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}
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}
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break;
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case db_op::write:
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{
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reply.rep_id = recv.rep_id;
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try{
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auto req = run_db.write(recv.identifier, recv.page);
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reply.identifier = req;
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} catch (...) {
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std::cerr << "cluster overfull"<< std::endl;
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}
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reply_size = sizeof(reply.rep_id) + sizeof(reply.identifier);
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}
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break;
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// case db_op::sremove:
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case db_op::remove:
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{
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reply.rep_id = recv.rep_id;
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run_db.remove(recv.identifier);
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reply.identifier.record_head.split = recv.identifier;
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reply_size = sizeof(reply.rep_id) + sizeof(reply.identifier);
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}
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break;
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case db_op::stats:
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{
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reply.rep_id = recv.rep_id;
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auto stats = (stats_data*)&reply.page;
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stats->total_pages = (*run_db.metadata).page_cnt;
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stats->total_records = (*run_db.metadata).record_cnt;
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stats->free_deleted = (*run_db.metadata).last_delete;
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stats->free =
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(*run_db.metadata).last_delete
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+ (*run_db.metadata).page_cnt
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- (*run_db.metadata).last_page;
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uint64_t cow_full = 0;
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for(auto& elem : run_db.records)
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{
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if(elem.second.timestamp == std::numeric_limits<uint64_t>::max())
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{
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++cow_full;
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}
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}
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stats->cow_full = cow_full;
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reply_size = sizeof(reply);
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}
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break;
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case db_op::sallocate:
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{
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reply.rep_id = recv.rep_id;
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reply.identifier = run_db.try_allocate(recv.identifier);
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reply_size = sizeof(reply.rep_id) + sizeof(reply.identifier);
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}
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break;
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case db_op::sread:
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{
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reply.rep_id = recv.rep_id;
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auto req = run_db.stepped_read(recv.identifier);
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if(req.first.timestamp != 0)
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{
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reply.identifier = req.first;
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reply.page = req.second;
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reply_size = sizeof(reply);
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}
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else
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{
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reply_size = sizeof(reply.rep_id) + sizeof(reply.identifier);
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}
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}
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break;
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case db_op::swrite:
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{
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reply.rep_id = recv.rep_id;
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try{
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auto req = run_db.stepped_write(recv.identifier, recv.page);
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reply.identifier = req;
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} catch (...) {
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std::cerr << "cluster overfull"<< std::endl;
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}
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reply_size = sizeof(reply.rep_id) + sizeof(reply.identifier);
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}
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break;
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case db_op::confirm:
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{
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reply.rep_id = recv.rep_id;
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run_db.confirm(recv.identifier, *(bitops::regulated<uint64_t>*)&recv.page);
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reply_size = sizeof(reply.rep_id);
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}
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break;
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default:
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std::cerr << "bad_request " << (uint32_t)static_cast<db_op>(recv.op) << std::endl;
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continue;
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break;
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}
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sendto(
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soc,
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(void*)&reply,
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reply_size,
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0,
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(struct sockaddr*)&client,
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(socklen_t)sizeof(client)
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);
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//std::cerr << "reply to " << (uint32_t)static_cast<db_op>(recv.op) << std::endl;
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}while(true);
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} catch (...) {
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std::cerr << "GoJDB crashed !" << std::endl;
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return 1;
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}
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}
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