void BufferedHDF2DArray<T>::Create(H5::CommonFG *_container, string _datasetName, unsigned int _rowLength) {
container = _container;
datasetName = _datasetName;
rowLength = (unsigned int)_rowLength;
//
// Make life easy if the buffer is too small to fit a row --
// resize it so that rows may be copied and written out in an
// atomic unit.
//
if (this->bufferSize < rowLength) {
// When the buffer size is greater than 0, the write buffer
// should exist.
if (this->bufferSize > 0) {
assert(this->writeBuffer != NULL);
delete[] this->writeBuffer;
}
this->writeBuffer = new T[rowLength];
this->bufferSize = rowLength;
}
hsize_t dataSize[2] = {0, hsize_t(rowLength)};
hsize_t maxDataSize[2] = {H5S_UNLIMITED, hsize_t(rowLength)};
H5::DataSpace fileSpace(2, dataSize, maxDataSize);
H5::DSetCreatPropList cparms;
/*
* For some reason, chunking must be enabled when creating a dataset
* that has an unlimited dimension. Of course, this is not
* mentioned in the hdf5 c++ documentation, because that
* docuemntation was written for people who enjoy learning how to
* use an API by reading comments in source code.
*/
hsize_t chunkDims[2] = {16384, hsize_t(rowLength)};
cparms.setChunk( 2, chunkDims );
TypedCreate(fileSpace, cparms);
fileSpace.close();
//
// Set some flags that indicate this dataset is ready for writing.
//
fileDataSpaceInitialized = true;
isInitialized = true;
}
//
// This handles creation of all non-std::string types. A specialization
// for std::strings is provided below.
//
void Create(H5::H5Location &object, const std::string & atomName) {
hsize_t defaultDims[] = {1};
H5::DataSpace defaultDataSpace(1, defaultDims);
TypedCreate(object, atomName, defaultDataSpace);
}
