resource-leak-or-not-mac-os-x.cpp

// Example for http://stackoverflow.com/questions/21699184/resource-leak-or-not-mac-os-x

#import <CoreServices/CoreServices.h>
#import <SystemConfiguration/SCDynamicStore.h>
#import <SystemConfiguration/SCDynamicStoreCopySpecific.h>
#include <iostream>
#include <thread>

void Execute()
{
  CSIdentityAuthorityRef identityAuthority = CSGetLocalIdentityAuthority();
  if (!identityAuthority)
  {
    std::cout << "Failed to get identity authority." << std::endl;
    return;
  }

  CSIdentityQueryRef usersQuery(CSIdentityQueryCreate(nil,  kCSIdentityClassUser, identityAuthority));
  if (!usersQuery)
  {
    std::cout << "Failed to create query." << std::endl;
    return;
  }

  /////////////////////////////////////////////////
  // Without CSIdentityQueryExecute(usersQuery, 0, nil) - everething is ok.
  /////////////////////////////////////////////////
  if (!CSIdentityQueryExecute(usersQuery, 0, nil))
  {
    std::cout << "Failed to execute query." << std::endl;
    return;
  }

  CFRelease(usersQuery);
}

int main(int argc, const char * argv[])
{
  //for (int i = 0; i < 1000; ++i)
  for (int i = 0; i < 5; ++i)
  {
    std::cout << "Iteration # " << i << std::endl;

    for (int j = 0; j < 1000; ++j)
    {
      Execute();
    }

    std::this_thread::sleep_for(std::chrono::seconds(1));
  }

  return 0;
}