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#include <algorithm>
#include <cassert>
#include <iomanip>
#include <sstream>
#include <string>
#include <vector>
#include <hdf5.h>
#include "cctk.h"
#include "cctk_Parameters.h"
#include "defs.hh"
#include "file.hh"
#include "utils.hh"
namespace CarpetIOF5 {
namespace F5 {
using namespace std;
file_t::
file_t (cGH const * const cctkGH,
string const path,
string const basename,
string const extension,
bool const do_truncate,
bool const is_metafile,
bool const is_datafile)
: m_cctkGH (cctkGH),
m_path (path),
m_basename (basename),
m_extension (extension),
m_is_metafile (is_metafile),
m_is_datafile (is_datafile)
{
DECLARE_CCTK_PARAMETERS;
assert (cctkGH);
// Create file names, creating subdirectories to avoid placing
// too many files into the same directory
check (CCTK_CreateDirectory (mode, path.c_str()) >= 0);
if (is_metafile)
{
m_filename = basename + extension;
}
else
{
int const myproc = CCTK_MyProc (cctkGH);
m_filename = create_filename (myproc, true);
}
string const filepath = m_path + "/" + m_filename;
htri_t is_hdf5;
H5E_BEGIN_TRY {
is_hdf5 = H5Fis_hdf5 (filepath.c_str());
} H5E_END_TRY;
bool const file_exists = is_hdf5 > 0;
if (do_truncate or not file_exists)
{
if (veryverbose)
{
CCTK_VInfo (CCTK_THORNSTRING,
"H5Fcreate (name=\"%s\")", filepath.c_str());
}
m_hdf5_file
= H5Fcreate (filepath.c_str(),
H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
}
else
{
if (veryverbose)
{
CCTK_VInfo (CCTK_THORNSTRING,
"H5Fopen (name=\"%s\")", filepath.c_str());
}
m_hdf5_file = H5Fopen (filepath.c_str(), H5F_ACC_RDWR, H5P_DEFAULT);
}
assert (m_hdf5_file >= 0);
m_hdf5_fiber_contents = -1;
m_hdf5_fiber_global_charts = -1;
m_hdf5_fiber_parameter_space = -1;
if (m_is_metafile)
{
create_or_check_version (m_hdf5_file);
m_hdf5_fiber_contents
= open_or_create_group (m_hdf5_file, "TableOfContents");
assert (m_hdf5_fiber_contents >= 0);
m_hdf5_fiber_global_charts
= open_or_create_group (m_hdf5_file, "Charts");
assert (m_hdf5_fiber_global_charts >= 0);
m_hdf5_fiber_parameter_space
= open_or_create_group (m_hdf5_fiber_contents, "Parameters");
assert (m_hdf5_fiber_parameter_space >= 0);
hid_t const hdf5_time_group
= open_or_create_group (m_hdf5_fiber_parameter_space, "Time");
assert (hdf5_time_group >= 0);
check (not H5Gclose (hdf5_time_group));
}
assert (invariant());
}
file_t::
~ file_t()
{
if (m_is_metafile)
{
check (not H5Gclose (m_hdf5_fiber_parameter_space));
check (not H5Gclose (m_hdf5_fiber_contents));
check (not H5Gclose (m_hdf5_fiber_global_charts));
}
check (not H5Fclose (m_hdf5_file));
}
string file_t::
create_filename (int const proc, bool const create_directories)
const
{
DECLARE_CCTK_PARAMETERS;
int const nprocs = CCTK_nProcs (m_cctkGH);
string extrapath;
if (create_subdirs)
{
if (nprocs >= 10000)
{
ostringstream buf;
buf << extrapath
<< m_basename
<< ".p" << setw (max (0, processor_digits - 4)) << setfill ('0')
<< proc / 10000
<< "nnnn/";
extrapath = buf.str();
if (create_directories)
{
string const filepath = m_path + "/" + extrapath;
check (CCTK_CreateDirectory (mode, filepath.c_str()) >= 0);
}
}
if (nprocs >= 100)
{
ostringstream buf;
buf << extrapath
<< m_basename
<< ".p" << setw (max (0, processor_digits - 2)) << setfill ('0')
<< proc / 100
<< "nn/";
extrapath = buf.str();
if (create_directories)
{
string const filepath = m_path + "/" + extrapath;
check (CCTK_CreateDirectory (mode, filepath.c_str()) >= 0);
}
}
}
if (one_dir_per_file and nprocs >= 1)
{
ostringstream buf;
buf << extrapath
<< m_basename
<< ".p" << setw (processor_digits) << setfill ('0')
<< proc
<< "/";
extrapath = buf.str();
if (create_directories)
{
string const filepath = m_path + "/" + extrapath;
check (CCTK_CreateDirectory (mode, filepath.c_str()) >= 0);
}
}
ostringstream buf;
buf << extrapath
<< m_basename
<< ".p" << setw (processor_digits) << setfill ('0') << proc
<< m_extension;
return buf.str();
}
void file_t::
create_or_check_version (hid_t const hdf5_file)
{
hid_t const hdf5_group = open_or_create_group (hdf5_file, "version");
assert (hdf5_group >= 0);
string const version ("http://www.zib.de/visual/F5-0.1.2/");
write_or_check_attribute (hdf5_group, "version", version.c_str());
check (not H5Gclose (hdf5_group));
}
cGH const * file_t::
get_cctkGH ()
const
{
return m_cctkGH;
}
hid_t file_t::
get_hdf5_file ()
const
{
return m_hdf5_file;
}
hid_t file_t::
get_hdf5_fiber_parameter_space ()
const
{
return m_hdf5_fiber_parameter_space;
}
bool file_t::
get_is_metafile ()
const
{
return m_is_metafile;
}
bool file_t::
get_is_datafile ()
const
{
return m_is_datafile;
}
void file_t::
get_link_destination (int const proc,
string & filename,
string & objectname)
const
{
filename = create_filename (proc);
objectname = "";
}
bool file_t::
invariant()
const
{
return m_cctkGH != 0 and m_hdf5_file >= 0;
}
} // namespace F5
} // namespace CarpetIOF5
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