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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "mpi.h"
#include "mpitestconf.h"
#ifdef HAVE_IOSTREAM
// Not all C++ compilers have iostream instead of iostream.h
#include <iostream>
#ifdef HAVE_NAMESPACE_STD
// Those that do often need the std namespace; otherwise, a bare "cout"
// is likely to fail to compile
using namespace std;
#endif
#else
#include <iostream.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include "mpitestcxx.h"
int main(int argc, char **argv)
{
int errs = 0;
MPI::File fh;
MPI::Info info1, info2;
bool flag;
char filename[50];
char *mykey;
char *myvalue;
MTest_Init();
mykey = new char[MPI::MAX_INFO_KEY];
myvalue = new char[MPI::MAX_INFO_VAL];
// Open a simple file
strcpy(filename, "iotest.txt");
fh = MPI::File::Open(MPI::COMM_WORLD, filename, MPI::MODE_RDWR |
MPI::MODE_CREATE, MPI::INFO_NULL);
// Try to set one of the available info hints
info1 = MPI::Info::Create();
info1.Set("access_style", "read_once,write_once");
fh.Set_info(info1);
info1.Free();
info2 = fh.Get_info();
flag = info2.Get("filename", MPI::MAX_INFO_VAL, myvalue);
// An implementation isn't required to provide the filename (though
// a high-quality implementation should)
if (flag) {
// If we find it, we must have the correct name
if (strcmp(myvalue, filename) != 0 || strlen(myvalue) != 10) {
errs++;
cout << " Returned wrong value for the filename\n";
}
}
info2.Free();
fh.Close();
MPI::COMM_WORLD.Barrier();
if (MPI::COMM_WORLD.Get_rank() == 0)
MPI::File::Delete(filename, MPI::INFO_NULL);
delete[]mykey;
delete[]myvalue;
MTest_Finalize(errs);
return 0;
}
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