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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"
static int verbose = 0;
static int ncalls = 0;
void efn(MPI::File & fh, int *code, ...)
{
ncalls++;
}
int main(int argc, char *argv[])
{
MPI::File fh;
MPI::Errhandler eh;
char *filename;
int errs = 0, toterrs, rank;
int sawErr;
MPI::Init();
// Test that the default error handler is errors return for files
filename = new char[10];
strncpy(filename, "t1", 10);
MPI::FILE_NULL.Set_errhandler(MPI::ERRORS_THROW_EXCEPTIONS);
sawErr = 0;
try {
fh = MPI::File::Open(MPI::COMM_WORLD, filename, MPI::MODE_RDWR, MPI::INFO_NULL);
} catch(MPI::Exception ex) {
if (verbose)
cout << "Caught exception from open\n";
if (ex.Get_error_class() == MPI_SUCCESS) {
errs++;
cout << "Unexpected error from Open" << endl;
}
sawErr = 1;
}
if (!sawErr) {
errs++;
cout <<
"Did not see error when opening a non-existent file for writing and reading (without MODE_CREATE)\n";
}
// Test that we can change the default error handler by changing
// the error handler on MPI::FILE_NULL.
eh = MPI::File::Create_errhandler(efn);
MPI::FILE_NULL.Set_errhandler(eh);
eh.Free();
sawErr = 0;
try {
fh = MPI::File::Open(MPI::COMM_WORLD, filename, MPI::MODE_RDWR, MPI::INFO_NULL);
}
catch(MPI::Exception ex) {
cout << "Caught exception from open (should have called error handler instead)\n";
errs++;
if (ex.Get_error_class() == MPI_SUCCESS) {
errs++;
cout << "Unexpected error from Open" << endl;
}
sawErr = 1;
}
if (ncalls != 1) {
errs++;
cout <<
"Did not invoke error handler when opening a non-existent file for writing and reading (without MODE_CREATE)"
<< endl;
}
MTest_Finalize(errs);
delete[]filename;
return 0;
}
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