K2HASHの使用デモ

k2HASHSample.cpp

#include <fstream>
#include <iostream>
#include <k2hash/k2hash.h>
#include <k2hash/k2hshm.h>
#include <sstream>
using namespace std;

int main() {
  K2HShm k;
  cout << k.GetSystemPageSize() << endl;

  bool isCppCreated = k.Create("/tmp/testcpp.k2h");
  cout << (isCppCreated ? "already ..." : "now created!") << endl;

  k.Attach("/tmp/testcpp.k2h", false);
  k.Set("tako", "僕は磯に住むタコだよ🐙");
  k.Set("ika", "僕は磯に住むイカだよくコ:彡");
  cout << k.GetSystemPageSize() << endl;
  cout << k.GetK2hashFilePath() << endl;
  cout << k.Get("tako") << endl;
  cout << (k.Get("tako") ? "GET" : "NOT GET") << endl;

  ifstream ifs("yubin.csv");
  string s, out;
  while (getline(ifs, s)) {
    stringstream ss(s);
    vector<string> vs;
    while (getline(ss, out, ','))
      vs.push_back(out);
    const char *key = &vs[0][0];
    const char *val = &vs[1][0];
    k.Set(key, val);
  }

  cout << k.Get("\"4100004\"") << endl;

  k.Detach();
  cout << (k.Get("tako") ? "GET" : "NOT GET") << endl;
}