int luaC_h5_open_group(lua_State *L)
{
const char *gname = luaL_checkstring(L, 1);
const char *mode = luaL_checkstring(L, 2);
hid_t grp = 0;
if (PresentFile < 0) {
luaL_error(L, "need an open file to open group\n");
}
else if (strcmp(mode, "w") == 0) {
if (H5Lexists(PresentFile, gname, H5P_DEFAULT)) {
H5Ldelete(PresentFile, gname, H5P_DEFAULT);
}
grp = H5Gcreate(PresentFile, gname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
}
else if (strcmp(mode, "r+") == 0) {
if (H5Lexists(PresentFile, gname, H5P_DEFAULT)) {
grp = H5Gopen(PresentFile, gname, H5P_DEFAULT);
}
else {
grp = H5Gcreate(PresentFile, gname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
}
}
else {
luaL_error(L, "invalid group access mode '%s'\n", mode);
}
lua_pushnumber(L, grp);
return 1;
}
CXI_Data * cxi_open_data(CXI_Data_Reference * ref){
cxi_debug("opening data");
char buffer[1024];
if(!ref){
return NULL;
}
CXI_Data * data = calloc(sizeof(CXI_Data),1);
if(!data){
return NULL;
}
data->handle = H5Gopen(ref->parent_handle,ref->group_name,H5P_DEFAULT);
if(data->handle < 0){
free(data);
return NULL;
}
ref->data = data;
if(H5Lexists(data->handle,"data",H5P_DEFAULT)){
data->data = calloc(sizeof(CXI_Dataset_Reference),1);
data->data->parent_handle = data->handle;
data->data->group_name = malloc(sizeof(char)*(strlen(buffer)+1));
strcpy(data->data->group_name,"data");
}
if(H5Lexists(data->handle,"errors",H5P_DEFAULT)){
data->errors = calloc(sizeof(CXI_Dataset_Reference),1);
data->errors->parent_handle = data->handle;
data->errors->group_name = malloc(sizeof(char)*(strlen(buffer)+1));
strcpy(data->errors->group_name,"errors");
}
return data;
}
/** read solution sizes */
static int read_nvnunrnl (hid_t file_id, int *nv, int *nr, int *nl)
{
if (H5Lexists (file_id, "/fclib_global", H5P_DEFAULT))
{
IO (H5LTread_dataset_int (file_id, "/fclib_global/M/n", nv));
IO (H5LTread_dataset_int (file_id, "/fclib_global/H/n", nr));
if (H5Lexists (file_id, "/fclib_global/G", H5P_DEFAULT))
{
IO (H5LTread_dataset_int (file_id, "/fclib_global/G/n", nl));
}
else *nl = 0;
}
else if (H5Lexists (file_id, "/fclib_local", H5P_DEFAULT))
{
*nv = 0;
IO (H5LTread_dataset_int (file_id, "/fclib_local/W/n", nr));
if (H5Lexists (file_id, "/fclib_local/R", H5P_DEFAULT))
{
IO (H5LTread_dataset_int (file_id, "/fclib_local/R/n", nl));
}
else *nl = 0;
}
else
{
fprintf (stderr, "ERROR: neither global nor local problem has been stored. Global or local have to be stored before solutions or guesses\n");
return 0;
}
return 1;
}
CXI_Image * cxi_open_image(CXI_Image_Reference * ref){
cxi_debug("opening image");
char buffer[1024];
if(!ref){
return NULL;
}
CXI_Image * image = calloc(sizeof(CXI_Image),1);
if(!image){
return NULL;
}
image->handle = H5Gopen(ref->parent_handle,ref->group_name,H5P_DEFAULT);
if(image->handle < 0){
free(image);
return NULL;
}
/* Search for Detector groups */
int n = find_max_suffix(image->handle, "detector");
image->detector_count = n;
image->detectors = calloc(sizeof(CXI_Detector_Reference *),n);
for(int i = 0;i<n;i++){
image->detectors[i] = calloc(sizeof(CXI_Detector_Reference),1);
sprintf(buffer,"detector_%d",i+1);
image->detectors[i]->parent_handle = image->handle;
image->detectors[i]->group_name = malloc(sizeof(char)*(strlen(buffer)+1));
strcpy(image->detectors[i]->group_name,buffer);
}
ref->image = image;
if(H5Lexists(image->handle,"data",H5P_DEFAULT)){
image->data = calloc(sizeof(CXI_Dataset_Reference),1);
image->data->parent_handle = image->handle;
image->data->group_name = malloc(sizeof(char)*(strlen(buffer)+1));
strcpy(image->data->group_name,"data");
}
if(H5Lexists(image->handle,"data_error",H5P_DEFAULT)){
image->data_error = calloc(sizeof(CXI_Dataset_Reference),1);
image->data_error->parent_handle = image->handle;
image->data_error->group_name = malloc(sizeof(char)*(strlen(buffer)+1));
strcpy(image->data_error->group_name,"data_error");
}
if(H5Lexists(image->handle,"mask",H5P_DEFAULT)){
image->mask = calloc(sizeof(CXI_Dataset_Reference),1);
image->mask->parent_handle = image->handle;
image->mask->group_name = malloc(sizeof(char)*(strlen(buffer)+1));
strcpy(image->mask->group_name,"mask");
}
// try_read_string(image->handle, "data_space",&image->data_space);
// try_read_string(image->handle, "data_type",&image->data_type);
image->dimensionality_valid = try_read_int(image->handle, "dimensionality",&image->dimensionality);
image->image_center_valid = try_read_float_array(image->handle, "image_center",image->image_center,3);
return image;
}
/**
Traverse the path of an object in HDF5 file, checking existence of
groups in the path and creating them if required. */
hid_t HDF5DataWriter::getDataset(string path)
{
if (filehandle_ < 0){
return -1;
}
herr_t status = H5Eset_auto2(H5E_DEFAULT, NULL, NULL);
// Create the groups corresponding to this path
string::size_type lastslash = path.find_last_of("/");
vector<string> pathTokens;
moose::tokenize(path, "/", pathTokens);
hid_t prev_id = filehandle_;
hid_t id = -1;
for ( unsigned int ii = 0; ii < pathTokens.size()-1; ++ii ){
// check if object exists
htri_t exists = H5Lexists(prev_id, pathTokens[ii].c_str(),
H5P_DEFAULT);
if (exists > 0){
// try to open existing group
id = H5Gopen2(prev_id, pathTokens[ii].c_str(), H5P_DEFAULT);
} else if (exists == 0) {
// If that fails, try to create a group
id = H5Gcreate2(prev_id, pathTokens[ii].c_str(),
H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
}
if ((exists < 0) || (id < 0)){
// Failed to open/create a group, print the
// offending path (for debugging; the error is
// perhaps at the level of hdf5 or file system).
cerr << "Error: failed to open/create group: ";
for (unsigned int jj = 0; jj <= ii; ++jj){
cerr << "/" << pathTokens[jj];
}
cerr << endl;
prev_id = -1;
}
if (prev_id >= 0 && prev_id != filehandle_){
// Successfully opened/created new group, close the old group
status = H5Gclose(prev_id);
assert( status >= 0 );
}
prev_id = id;
}
string name = pathTokens[pathTokens.size()-1];
htri_t exists = H5Lexists(prev_id, name.c_str(), H5P_DEFAULT);
hid_t dataset_id = -1;
if (exists > 0){
dataset_id = H5Dopen2(prev_id, name.c_str(), H5P_DEFAULT);
} else if (exists == 0){
dataset_id = createDoubleDataset(prev_id, name);
} else {
cerr << "Error: H5Lexists returned "
<< exists << " for path \""
<< path << "\"" << endl;
}
return dataset_id;
}
int regn_writes_all() {
OPEN_WRITE_TEST_FILE;
int **regions = fixture_regions(5);
int result = (ch5m_regn_set_all(file, 5, regions[0]) == 0);
htri_t exists = H5Lexists(file, CH5_REGN_GROUP_NAME, H5P_DEFAULT);
if (exists < 1) {
fprintf(stderr, "Could not find regions main group\n");
result = 0;
}
hid_t main_group_id = H5Gopen(file, CH5_REGN_GROUP_NAME, H5P_DEFAULT);
exists = H5Lexists(main_group_id, CH5_REGN_DSET_NAME, H5P_DEFAULT);
if (exists < 1) {
fprintf(stderr, "Could not find regions dataset\n");
result = 0;
}
hid_t dset_id = H5Dopen(main_group_id, CH5_REGN_DSET_NAME, H5P_DEFAULT);
if (dset_id < 0) {
fprintf(stderr, "Error opening regions dataset\n");
result = 0;
}
ch5_dataset dset_info;
result &= (ch5_gnrc_get_dset_info(file, CH5_REGN_DSET_FULL_PATH, &dset_info) == 0);
if ((dset_info.count != 5) || (dset_info.width != 2)) {
fprintf(stderr, "Regions dataset dimensions incorrect (%d,%d)\n",
dset_info.count, dset_info.width);
result = 0;
}
int read_regions[5 * 2];
herr_t status = H5Dread(dset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
H5P_DEFAULT, read_regions);
if (status < 0) {
fprintf(stderr, "Regions reading failed\n");
result = 0;
}
if (int_arrays_same(regions[0], read_regions, 5 * 2) == 0) {
fprintf(stderr, "Regions data incorrect\n");
result = 0;
}
H5Dclose(dset_id);
H5Gclose(main_group_id);
fixture_free_regions(regions);
CLOSE_WRITE_TEST_FILE;
return result;
}
/** read local problem;
* return problem on success; NULL on failure */
struct fclib_local* fclib_read_local (const char *path)
{
struct fclib_local *problem;
hid_t file_id, main_id, id;
if ((file_id = H5Fopen (path, H5F_ACC_RDONLY, H5P_DEFAULT)) < 0)
{
fprintf (stderr, "ERROR: opening file failed\n");
return NULL;
}
if (!H5Lexists (file_id, "/fclib_local", H5P_DEFAULT))
{
fprintf (stderr, "ERROR: spurious input file %s :: fclib_local group does not exists", path);
return NULL;
}
MM (problem = calloc (1, sizeof (struct fclib_local)));
IO (main_id = H5Gopen (file_id, "/fclib_local", H5P_DEFAULT));
IO (H5LTread_dataset_int (file_id, "/fclib_local/spacedim", &problem->spacedim));
IO (id = H5Gopen (file_id, "/fclib_local/W", H5P_DEFAULT));
problem->W = read_matrix (id);
IO (H5Gclose (id));
if (H5Lexists (file_id, "/fclib_local/V", H5P_DEFAULT))
{
IO (id = H5Gopen (file_id, "/fclib_local/V", H5P_DEFAULT));
problem->V = read_matrix (id);
IO (H5Gclose (id));
IO (id = H5Gopen (file_id, "/fclib_local/R", H5P_DEFAULT));
problem->R = read_matrix (id);
IO (H5Gclose (id));
}
IO (id = H5Gopen (file_id, "/fclib_local/vectors", H5P_DEFAULT));
read_local_vectors (id, problem);
IO (H5Gclose (id));
if (H5Lexists (file_id, "/fclib_local/info", H5P_DEFAULT))
{
IO (id = H5Gopen (file_id, "/fclib_local/info", H5P_DEFAULT));
problem->info = read_problem_info (id);
IO (H5Gclose (id));
}
IO (H5Gclose (main_id));
IO (H5Fclose (file_id));
return problem;
}
// Check for path validity
char AH5_path_valid(hid_t loc_id, const char *path)
{
char *temp;
int i, slashes = 0;
temp = strdup(path);
for (i = (int) strlen(path); i > 0; i--)
{
if (temp[i] == '/')
{
temp[i] = '\0';
slashes++; /* count number of slashes excluding the first one */
}
}
if (strcmp(path, ".") == 0)
{
if (!H5Iis_valid(loc_id))
{
free(temp);
return AH5_FALSE;
}
}
else
{
if(H5Lexists(loc_id, temp, H5P_DEFAULT) != AH5_TRUE)
{
free(temp);
return AH5_FALSE;
}
}
i = 1;
while (slashes > 0)
{
while (temp[i] != '\0')
i++;
temp[i] = '/';
slashes--;
if(H5Lexists(loc_id, temp, H5P_DEFAULT) != AH5_TRUE)
{
free(temp);
return AH5_FALSE;
}
}
free(temp);
return AH5_TRUE;
}
// Author & Date: Ehsan Azar Nov 13, 2012
// Purpose: Create type for BmiSpike16_t and commit
// Note: For performance reasons and because spike length is constant during
// and experiment we use fixed-length array here instead of varible-length
// Inputs:
// loc - where to add the type
// spikeLength - the spike length to use
// Outputs:
// Returns the type id
hid_t CreateSpike16Type(hid_t loc, UINT16 spikeLength)
{
herr_t ret;
hid_t tid = -1;
// e.g. for spike length of 48 type name will be "BmiSpike16_48_t"
char szNum[4] = {'\0'};
sprintf(szNum, "%u", spikeLength);
std::string strLink = "BmiSpike16_";
strLink += szNum;
strLink += "_t";
// If already there return it
if(H5Lexists(loc, strLink.c_str(), H5P_DEFAULT))
{
tid = H5Topen(loc, strLink.c_str(), H5P_DEFAULT);
return tid;
}
hsize_t dims[1] = {spikeLength};
hid_t tid_arr_wave = H5Tarray_create(H5T_NATIVE_INT16, 1, dims);
tid = H5Tcreate(H5T_COMPOUND, offsetof(BmiSpike16_t, wave) + sizeof(INT16) * spikeLength);
ret = H5Tinsert(tid, "TimeStamp", offsetof(BmiSpike16_t, dwTimestamp), H5T_NATIVE_UINT32);
ret = H5Tinsert(tid, "Unit", offsetof(BmiSpike16_t, unit), H5T_NATIVE_UINT8);
ret = H5Tinsert(tid, "Wave", offsetof(BmiSpike16_t, wave), tid_arr_wave);
ret = H5Tcommit(loc, strLink.c_str(), tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
H5Tclose(tid_arr_wave);
return tid;
}
char HDocument::checkExist(const std::string & path)
{
if(!H5Lexists(fFileId, path.c_str(), H5P_DEFAULT))
return 0;
return 1;
}
int H5Lexists_safe(hid_t base, char *path)
// -----------------------------------------------------------------------------
// The HDF5 specification only allows H5Lexists to be called on an immediate
// child of the current object. However, you may wish to see whether a whole
// relative path exists, returning false if any of the intermediate links are
// not present. This function does that.
// http://www.hdfgroup.org/HDF5/doc/RM/RM_H5L.html#Link-Exists
// -----------------------------------------------------------------------------
{
hid_t last = base, next;
char *pch;
char pathc[2048];
strcpy(pathc, path);
pch = strtok(pathc, "/");
while (pch != NULL) {
int exists = H5Lexists(last, pch, H5P_DEFAULT);
if (!exists) {
if (last != base) H5Gclose(last);
return 0;
}
else {
next = H5Gopen(last, pch, H5P_DEFAULT);
if (last != base) H5Gclose(last);
last = next;
}
pch = strtok(NULL, "/");
}
if (last != base) H5Gclose(last);
return 1;
}
// Author & Date: Ehsan Azar Nov 13, 2012
// Purpose: Create type for BmiRootAttr_t and commit
// Inputs:
// loc - where to add the type
// Outputs:
// Returns the type id
hid_t CreateRootAttrType(hid_t loc)
{
herr_t ret;
hid_t tid = -1;
std::string strLink = "BmiRootAttr_t";
// If already there return it
if(H5Lexists(loc, strLink.c_str(), H5P_DEFAULT))
{
tid = H5Topen(loc, strLink.c_str(), H5P_DEFAULT);
return tid;
}
hid_t tid_attr_str = H5Tcopy(H5T_C_S1);
ret = H5Tset_size(tid_attr_str, 64);
hid_t tid_attr_comment_str = H5Tcopy(H5T_C_S1);
ret = H5Tset_size(tid_attr_comment_str, 1024);
tid = H5Tcreate(H5T_COMPOUND, sizeof(BmiRootAttr_t));
ret = H5Tinsert(tid, "MajorVersion", offsetof(BmiRootAttr_t, nMajorVersion), H5T_NATIVE_UINT32);
ret = H5Tinsert(tid, "MinorVersion", offsetof(BmiRootAttr_t, nMinorVersion), H5T_NATIVE_UINT32);
ret = H5Tinsert(tid, "Flags", offsetof(BmiRootAttr_t, nFlags), H5T_NATIVE_UINT32);
ret = H5Tinsert(tid, "GroupCount", offsetof(BmiRootAttr_t, nGroupCount), H5T_NATIVE_UINT32);
ret = H5Tinsert(tid, "Date", offsetof(BmiRootAttr_t, szDate), tid_attr_str); // date of the file creation
ret = H5Tinsert(tid, "Application", offsetof(BmiRootAttr_t, szApplication), tid_attr_str); // application that created the file
ret = H5Tinsert(tid, "Comment", offsetof(BmiRootAttr_t, szComment), tid_attr_comment_str); // file comments
ret = H5Tcommit(loc, strLink.c_str(), tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
H5Tclose(tid_attr_str);
H5Tclose(tid_attr_comment_str);
return tid;
}
// Author & Date: Ehsan Azar Nov 13, 2012
// Purpose: Create type for BmiChanExt2Attr_t and commit
// Inputs:
// loc - where to add the type
// Outputs:
// Returns the type id
hid_t CreateChanExt2AttrType(hid_t loc)
{
herr_t ret;
hid_t tid = -1;
std::string strLink = "BmiChanExt2Attr_t";
// If already there return it
if(H5Lexists(loc, strLink.c_str(), H5P_DEFAULT))
{
tid = H5Topen(loc, strLink.c_str(), H5P_DEFAULT);
return tid;
}
hid_t tid_attr_unit_str = H5Tcopy(H5T_C_S1);
ret = H5Tset_size(tid_attr_unit_str, 16);
tid = H5Tcreate(H5T_COMPOUND, sizeof(BmiChanExt2Attr_t));
ret = H5Tinsert(tid, "DigitalMin", offsetof(BmiChanExt2Attr_t, digmin), H5T_NATIVE_INT32);
ret = H5Tinsert(tid, "DigitalMax", offsetof(BmiChanExt2Attr_t, digmax), H5T_NATIVE_INT32);
ret = H5Tinsert(tid, "AnalogMin", offsetof(BmiChanExt2Attr_t, anamin), H5T_NATIVE_INT32);
ret = H5Tinsert(tid, "AnalogMax", offsetof(BmiChanExt2Attr_t, anamax), H5T_NATIVE_INT32);
ret = H5Tinsert(tid, "AnalogUnit", offsetof(BmiChanExt2Attr_t, anaunit), tid_attr_unit_str);
ret = H5Tcommit(loc, strLink.c_str(), tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
H5Tclose(tid_attr_unit_str);
return tid;
}
// Author & Date: Ehsan Azar Nov 13, 2012
// Purpose: Create type for BmiTrackingAttr_t and commit
// Inputs:
// loc - where to add the type
// Outputs:
// Returns the type id
hid_t CreateTrackingAttrType(hid_t loc)
{
herr_t ret;
hid_t tid = -1;
std::string strLink = "BmiTrackingAttr_t";
// If already there return it
if(H5Lexists(loc, strLink.c_str(), H5P_DEFAULT))
{
tid = H5Topen(loc, strLink.c_str(), H5P_DEFAULT);
return tid;
}
hid_t tid_attr_label_str = H5Tcopy(H5T_C_S1);
ret = H5Tset_size(tid_attr_label_str, 128);
tid = H5Tcreate(H5T_COMPOUND, sizeof(BmiTrackingAttr_t));
ret = H5Tinsert(tid, "Label", offsetof(BmiTrackingAttr_t, szLabel), tid_attr_label_str);
ret = H5Tinsert(tid, "Type", offsetof(BmiTrackingAttr_t, type), H5T_NATIVE_UINT16);
ret = H5Tinsert(tid, "TrackID", offsetof(BmiTrackingAttr_t, trackID), H5T_NATIVE_UINT16);
ret = H5Tinsert(tid, "MaxPoints", offsetof(BmiTrackingAttr_t, maxPoints), H5T_NATIVE_UINT16);
ret = H5Tcommit(loc, strLink.c_str(), tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
H5Tclose(tid_attr_label_str);
return tid;
}
//-*****************************************************************************
bool ObjectExists( H5Node& iParent, const std::string &iName )
{
ABCA_ASSERT( iParent.isValidObject(),
"Invalid parent node passed into HDF5Util GroupExists: "
<< iName << std::endl );
HDF5Hierarchy* H5HPtr = iParent.getH5HPtr();
if ( H5HPtr )
{
return H5HPtr->childExists( iParent.getRef(), iName );
}
else
{
// First, check to make sure the link exists.
hid_t iParentObject = iParent.getObject();
htri_t exi = H5Lexists( iParentObject, iName.c_str(), H5P_DEFAULT );
if ( exi < 1 )
{
return false;
}
else
{
return true;
}
}
}
//-*****************************************************************************
bool DatasetExists( hid_t iParent, const std::string &iName )
{
ABCA_ASSERT( iParent >= 0, "Invalid Parent in DatasetExists" );
// First, check to make sure the link exists.
htri_t exi = H5Lexists( iParent, iName.c_str(), H5P_DEFAULT );
if ( exi < 1 )
{
return false;
}
// Now make sure it is a group.
H5O_info_t oinfo;
herr_t status = H5Oget_info_by_name( iParent,
iName.c_str(), &oinfo,
H5P_DEFAULT );
if ( status < 0 )
{
return false;
}
if ( oinfo.type != H5O_TYPE_DATASET )
{
return false;
}
return true;
}
hdf5_dataset::hdf5_dataset(
hdf5_file const& file,
std::string const& path
)
:
path_(path)
{
// Check if name exists in this file.
htri_t status = H5Lexists(file.get_id(), path.c_str(), H5P_DEFAULT);
if(status > 0) { // Full path exists.
// Attempt to open it as a dataset
set_id(H5Dopen2(file.get_id(), path.c_str(), H5P_DEFAULT));
if(get_id() < 0) {
boost::serialization::throw_exception(
hdf5_archive_exception(
hdf5_archive_exception::hdf5_archive_dataset_access_error,
path.c_str()
)
);
}
}
else { // path does not exist, or other error
boost::serialization::throw_exception(
hdf5_archive_exception(
hdf5_archive_exception::hdf5_archive_bad_path_error,
path.c_str()
)
);
}
}
H5Link::H5Link(H5Object & _parent, const std::string & _name) : H5Object(_parent, _name)
{
if (H5Lexists(_parent.getH5Id(), name.c_str(), H5P_DEFAULT) <= 0)
{
throw H5Exception(__LINE__, __FILE__, _("The link %s does not exist."), name.c_str());
}
}
void DCDataSet::createReference(hid_t refGroup,
hid_t srcGroup,
DCDataSet &srcDataSet)
throw (DCException)
{
if (opened)
throw DCException(getExceptionString("createReference: dataset is already open"));
if (checkExistence && H5Lexists(refGroup, name.c_str(), H5P_LINK_ACCESS_DEFAULT))
throw DCException(getExceptionString("createReference: this reference already exists"));
getLogicalSize().set(srcDataSet.getLogicalSize());
this->ndims = srcDataSet.getNDims();
if (H5Rcreate(®ionRef, srcGroup, srcDataSet.getName().c_str(), H5R_OBJECT, -1) < 0)
throw DCException(getExceptionString("createReference: failed to create region reference"));
hsize_t ndims = 1;
dataspace = H5Screate_simple(1, &ndims, NULL);
if (dataspace < 0)
throw DCException(getExceptionString("createReference: failed to create dataspace for reference"));
dataset = H5Dcreate(refGroup, name.c_str(), H5T_STD_REF_OBJ,
dataspace, H5P_DEFAULT, dsetProperties, H5P_DEFAULT);
if (dataset < 0)
throw DCException(getExceptionString("createReference: failed to create dataset for reference"));
if (H5Dwrite(dataset, H5T_STD_REF_OBJ, H5S_ALL, H5S_ALL,
dsetWriteProperties, ®ionRef) < 0)
throw DCException(getExceptionString("createReference: failed to write reference"));
isReference = true;
opened = true;
}
PetscErrorCode PetscViewerHDF5OpenGroup(PetscViewer viewer, hid_t *fileId, hid_t *groupId)
{
hid_t file_id, group;
const char *groupName = NULL;
PetscErrorCode ierr;
PetscFunctionBegin;
ierr = PetscViewerHDF5GetFileId(viewer, &file_id);CHKERRQ(ierr);
ierr = PetscViewerHDF5GetGroup(viewer, &groupName);CHKERRQ(ierr);
/* Open group */
if (groupName) {
PetscBool root;
ierr = PetscStrcmp(groupName, "/", &root);CHKERRQ(ierr);
if (!root && !H5Lexists(file_id, groupName, H5P_DEFAULT)) {
#if (H5_VERS_MAJOR * 10000 + H5_VERS_MINOR * 100 + H5_VERS_RELEASE >= 10800)
group = H5Gcreate2(file_id, groupName, 0, H5P_DEFAULT, H5P_DEFAULT);
#else /* deprecated HDF5 1.6 API */
group = H5Gcreate(file_id, groupName, 0);
#endif
if (group < 0) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_LIB, "Could not create group %s", groupName);
ierr = H5Gclose(group);CHKERRQ(ierr);
}
#if (H5_VERS_MAJOR * 10000 + H5_VERS_MINOR * 100 + H5_VERS_RELEASE >= 10800)
group = H5Gopen2(file_id, groupName, H5P_DEFAULT);
#else
group = H5Gopen(file_id, groupName);
#endif
if (group < 0) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_LIB, "Could not open group %s", groupName);
} else group = file_id;
*fileId = file_id;
*groupId = group;
PetscFunctionReturn(0);
}
/** read global problem;
* return problem on success; NULL on failure */
struct fclib_global* fclib_read_global (const char *path)
{
struct fclib_global *problem;
hid_t file_id, main_id, id;
if ((file_id = H5Fopen (path, H5F_ACC_RDONLY, H5P_DEFAULT)) < 0)
{
fprintf (stderr, "ERROR: opening file failed\n");
return NULL;
}
MM (problem = calloc (1, sizeof (struct fclib_global)));
IO (main_id = H5Gopen (file_id, "/fclib_global", H5P_DEFAULT));
IO (H5LTread_dataset_int (file_id, "/fclib_global/spacedim", &problem->spacedim));
IO (id = H5Gopen (file_id, "/fclib_global/M", H5P_DEFAULT));
problem->M = read_matrix (id);
IO (H5Gclose (id));
IO (id = H5Gopen (file_id, "/fclib_global/H", H5P_DEFAULT));
problem->H = read_matrix (id);
IO (H5Gclose (id));
if (H5Lexists (file_id, "/fclib_global/G", H5P_DEFAULT))
{
IO (id = H5Gopen (file_id, "/fclib_global/G", H5P_DEFAULT));
problem->G = read_matrix (id);
IO (H5Gclose (id));
}
IO (id = H5Gopen (file_id, "/fclib_global/vectors", H5P_DEFAULT));
read_global_vectors (id, problem);
IO (H5Gclose (id));
if (H5Lexists (file_id, "/fclib_global/info", H5P_DEFAULT))
{
IO (id = H5Gopen (file_id, "/fclib_global/info", H5P_DEFAULT));
problem->info = read_problem_info (id);
IO (H5Gclose (id));
}
IO (H5Gclose (main_id));
IO (H5Fclose (file_id));
return problem;
}
void hdf5file::touch_group(const std::string& name)
{
//std::cout << "touch: " << name << std::endl;
hid_t location_id = handle();
hid_t result = -1;
if(! H5Lexists(location_id, name.c_str(), H5P_DEFAULT))
result = H5Gcreate(location_id, name.c_str(), H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
else
result = H5Gopen(location_id, name.c_str(), H5P_DEFAULT);
H5Gclose(result);
}
bool utils_hdf5_check_present(hid_t loc_id, const char *name)
{
htri_t bool_id;
if ((bool_id = H5Lexists(loc_id, name, H5P_DEFAULT)) < 0 || !bool_id)
return false;
if ((bool_id = H5Oexists_by_name(loc_id, name, H5P_DEFAULT)) < 0 || !bool_id)
return false;
return true;
}
hdf5_dataset::hdf5_dataset
(
hdf5_file &file,
std::string const& path,
hdf5_datatype const& datatype,
hdf5_dataspace const& dataspace
)
:
path_(path)
{
// Check if name exists in this file.
htri_t status = H5Lexists(file.get_id(), path.c_str(), H5P_DEFAULT);
if(status > 0) { // Full path exists.
// Attempt to open it as a dataset
set_id(H5Dopen2(file.get_id(), path.c_str(), H5P_DEFAULT));
if(get_id() < 0) {
boost::serialization::throw_exception(
hdf5_archive_exception(
hdf5_archive_exception::hdf5_archive_dataset_access_error,
path.c_str()
)
);
}
}
else if(status == 0){ // Final link in path does not exist.
// Create the dataset.
set_id(H5Dcreate2(
file.get_id(),
path.c_str(),
datatype.get_id(),
dataspace.get_id(),
H5P_DEFAULT,
H5P_DEFAULT,
H5P_DEFAULT
)
);
if(get_id() < 0) {
boost::serialization::throw_exception(
hdf5_archive_exception(
hdf5_archive_exception::hdf5_archive_dataset_create_error,
path.c_str()
)
);
}
}
else { // intermediate link does not exist, or other error
boost::serialization::throw_exception(
hdf5_archive_exception(
hdf5_archive_exception::hdf5_archive_bad_path_error,
path.c_str()
)
);
}
}
static int find_max_suffix(hid_t loc, char *basename){
int n;
for(n = 1;;n++){
char buffer[1024];
sprintf(buffer,"%s_%d",basename,n);
if(!H5Lexists(loc,buffer,H5P_DEFAULT)){
break;
}
}
return n-1;
}
/** make grourp */
static hid_t H5Gmake (hid_t loc_id, const char *name)
{
hid_t id;
if (H5Lexists (loc_id, name, H5P_DEFAULT))
{
id = H5Gopen (loc_id, name, H5P_DEFAULT);
}
else return H5Gcreate (loc_id, name, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
return id;
}
void DCDataSet::create(const CollectionType& colType,
hid_t group, const Dimensions size, uint32_t ndims, bool compression)
throw (DCException)
{
log_msg(2, "DCDataSet::create (%s, size %s)", name.c_str(), size.toString().c_str());
if (opened)
throw DCException(getExceptionString("create: dataset is already open"));
// if the dataset already exists, remove/unlink it
// note that this won't free the memory occupied by this
// dataset, however, there currently is no function to delete
// a dataset
if (!checkExistence || (checkExistence && H5Lexists(group, name.c_str(), H5P_LINK_ACCESS_DEFAULT)))
H5Ldelete(group, name.c_str(), H5P_LINK_ACCESS_DEFAULT);
this->ndims = ndims;
this->compression = compression;
this->datatype = colType.getDataType();
getLogicalSize().set(size);
setChunking(colType.getSize());
setCompression();
if (getPhysicalSize().getScalarSize() != 0)
{
hsize_t *max_dims = new hsize_t[ndims];
for (size_t i = 0; i < ndims; ++i)
max_dims[i] = H5F_UNLIMITED;
dataspace = H5Screate_simple(ndims, getPhysicalSize().getPointer(), max_dims);
delete[] max_dims;
max_dims = NULL;
} else
dataspace = H5Screate(H5S_NULL);
if (dataspace < 0)
throw DCException(getExceptionString("create: Failed to create dataspace"));
// create the new dataset
dataset = H5Dcreate(group, this->name.c_str(), this->datatype, dataspace,
H5P_DEFAULT, dsetProperties, H5P_DEFAULT);
if (dataset < 0)
throw DCException(getExceptionString("create: Failed to create dataset"));
isReference = false;
opened = true;
}
// Fields }}}
// Informational {{{
bool Location::exists(optional<LinkAccessProperties const&> const& optional_link_access_properties) const {
string const& name = *(this->name);
if(name == "." || name == "/") return true;
return
assertSuccess(
"ascertaining location existence",
H5Lexists(
getParentId(),
name.c_str(),
getOptionalPropertiesId(optional_link_access_properties)
)
) == 1;
}
fast5_file fast5_open(const std::string& filename)
{
fast5_file fh;
fh.hdf5_file = H5Fopen(filename.c_str(), H5F_ACC_RDONLY, H5P_DEFAULT);
// Check for attribute that indicates whether it is single or multi-fast5
// see: https://community.nanoporetech.com/posts/multi-fast5-format
const std::string indicator_p1 = "/UniqueGlobalKey/";
const std::string indicator_p2 = indicator_p1 + "tracking_id/";
bool has_indicator = H5Lexists(fh.hdf5_file, indicator_p1.c_str(), H5P_DEFAULT) && H5Lexists(fh.hdf5_file, indicator_p2.c_str(), H5P_DEFAULT);
fh.is_multi_fast5 = !has_indicator;
return fh;
}
//------------------------------------------------------------------------------
xdm::RefPtr< DatasetIdentifier > createDatasetIdentifier(
const DatasetParameters& parameters ) {
// check if the dataset already exists within the given parent
htri_t exists = H5Lexists(
parameters.parent,
parameters.name.c_str(),
H5P_DEFAULT );
if ( exists ) {
if ( parameters.mode == xdm::Dataset::kCreate ) {
// the dataset exists and a create was requested, delete the existing one
H5Ldelete( parameters.parent, parameters.name.c_str(), H5P_DEFAULT );
} else {
// read or modify access, open and return the existing dataset
return openExistingDataset( parameters );
}
}
// the dataset doesn't exist. Read only access is an error.
if ( parameters.mode == xdm::Dataset::kRead ) {
XDM_THROW( xdm::DatasetNotFound( parameters.name ) );
}
// Determine the dataset access properties based off chunking and compression
// parameters.
xdm::RefPtr< PListIdentifier > createPList( new PListIdentifier( H5P_DEFAULT ) );
if ( parameters.chunked ) {
createPList->reset( H5Pcreate( H5P_DATASET_CREATE ) );
setupChunks( createPList->get(), parameters.chunkSize, parameters.dataspace );
// Chunking is enabled, so check for compression and enable it if possible.
if ( parameters.compress ) {
setupCompression( createPList->get(), parameters.compressionLevel );
}
}
// the mode is create or modify. In both cases we want to create it if it
// doesn't yet exist. It is safe to create the dataset here because we deleted
// the dataset earlier if it existed.
hid_t datasetId = H5Dcreate(
parameters.parent,
parameters.name.c_str(),
parameters.type,
parameters.dataspace,
H5P_DEFAULT,
createPList->get(),
H5P_DEFAULT );
return xdm::RefPtr< DatasetIdentifier >( new DatasetIdentifier( datasetId ) );
}
