mirror of
https://github.com/triqs/dft_tools
synced 2024-12-26 14:23:38 +01:00
53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
|
#include "./file.hpp"
|
||
|
|
#include "./base.hpp"
|
||
|
|
|
||
|
|
namespace triqs {
|
||
|
|
namespace h5 {
|
||
|
|
|
||
|
|
file::file(const char* name, unsigned flags) {
|
||
|
|
|
||
|
|
if ((flags == H5F_ACC_RDWR) || (flags == H5F_ACC_RDONLY)) {
|
||
|
|
id = H5Fopen(name, flags, H5P_DEFAULT);
|
||
|
|
if (id < 0) TRIQS_RUNTIME_ERROR << "HDF5 : can not open file" << name;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (flags == H5F_ACC_TRUNC) {
|
||
|
|
id = H5Fcreate(name, flags, H5P_DEFAULT, H5P_DEFAULT);
|
||
|
|
if (id < 0) TRIQS_RUNTIME_ERROR << "HDF5 : can not create file " << name;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (flags == H5F_ACC_EXCL) {
|
||
|
|
id = H5Fcreate(name, flags, H5P_DEFAULT, H5P_DEFAULT);
|
||
|
|
if (id < 0) TRIQS_RUNTIME_ERROR << "HDF5 : can not create file " << name << ". Does it exists ?";
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
TRIQS_RUNTIME_ERROR << "HDF5 file opening : flag not recognized";
|
||
|
|
}
|
||
|
|
|
||
|
|
//---------------------------------------------
|
||
|
|
|
||
|
|
file::file (hid_t id_) : h5_object(h5_object(id_)){}
|
||
|
|
|
||
|
|
file::file(h5_object obj) : h5_object(std::move(obj)) {
|
||
|
|
if (!H5Iis_valid(this->id)) TRIQS_RUNTIME_ERROR << "Invalid input in h5::file constructor from id";
|
||
|
|
if (H5Iget_type(this->id) != H5I_FILE) TRIQS_RUNTIME_ERROR << "h5::file constructor must take the id of a file ";
|
||
|
|
}
|
||
|
|
|
||
|
|
//---------------------------------------------
|
||
|
|
|
||
|
|
std::string file::name() const { // same function as for group
|
||
|
|
char _n[1];
|
||
|
|
ssize_t size = H5Fget_name(id, _n, 1); // first call, get the size only
|
||
|
|
std::vector<char> buf(size + 1, 0x00);
|
||
|
|
H5Fget_name(id, buf.data(), 1); // now get the name
|
||
|
|
std::string res = "";
|
||
|
|
res.append(&(buf.front()));
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|