// PthreadMutexLocker_t.cxx

#include "dataset_util/PThreadMutexLocker.h"
#include <string>
#include <iostream>
#include <cassert>

using std::string;
using std::cout;
using std::endl;

void msg(string txt) {
  cout << "*** ";
  cout << txt;
  cout << " ***"  << endl;
}

int PThreadMutexLocker_t() {

  msg("Create mutex");
  PThreadMutex mut;
  cout << mut << endl;
  assert( mut.is_valid() );
  assert( mut.is_unlocked() );

  {
    msg("Lock with reference.");
    PThreadMutexLocker lock(mut);
    cout << mut << endl;
    assert( mut.is_locked() );

  msg("Unlock.");
  }
  cout << mut << endl;
  assert( mut.is_unlocked() );

  {
    msg("Lock with pointer.");
    PThreadMutexLocker lock(&mut);
    cout << mut << endl;
    assert( mut.is_locked() );

  msg("Unlock.");
  }
  cout << mut << endl;
  assert( mut.is_unlocked() );

  {
    msg("Lock null.");
    PThreadMutexLocker lock(0);

  msg("Unlock.");
  }

  return 0;
}

#ifdef CTEST_MAIN
int main() {
  return PThreadMutexLocker_t();
}
#endif