source: testjes/testgdbm.cpp

#include <iostream>
#include <string>
#include <stdlib.h>
#include <unistd.h>
#include <gdbm.h>

// g++ testgdbm.cpp -lgdbm

// test if locking works
// run one instance, then start another instance
//
int main()
{
  GDBM_FILE dbf=0;
  do
  {
    dbf=gdbm_open((char*)"/tmp/testdb_gdbm",0,GDBM_WRCREAT|GDBM_SYNC,0666,0);
    if (dbf == 0)
      usleep(1000);
  }
  while (dbf == 0);
  std::cout << "geopend ..." << std::endl;
  //sleep(15);
  //return 0;
  int w=10;
  datum key,content;
  key.dptr = (char*)&w;
  key.dsize = sizeof(w);
  content.dptr = (char*)&w;
  content.dsize = sizeof(w);
  for (int i=0; i<3000000; i++)
  {
    int rc = gdbm_store(dbf,key,content,GDBM_REPLACE);
    if (rc !=0)
    {
      std::cout << "rc: " << rc << std::endl;
      goto einde;
    }
  }
  std::cout << "gestored ..." << std::endl;
einde:
  if (dbf != 0)
    gdbm_close(dbf);
  return 0;
}