problem with H5Gget_objinfo in 1.6.10

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1

Hi all,

I have a piece of code that checks for the existence of a group at
"/Step#0" by calling this on the file id:

H5Gget_objinfo( file_id, name, 1, NULL );

I've tried both name="/Step#0" and name="Step#0". Also, I've tried

g_id = H5Gopen(file_id, "/");
H5Gget_objinfo( g_id, name, 1, NULL );

but in all cases, I receive error messages of this type:

HDF5-DIAG: Error detected in HDF5 library version: 1.6.10 MPI-process
3. Back trace follows.
  #000: H5G.c line 753 in H5Gget_objinfo(): cannot stat object
    major(01): Function arguments
    minor(29): Unable to initialize object
  #001: H5G.c line 2134 in H5G_get_objinfo(): unable to stat object
    major(10): Symbol table layer
    minor(48): Object not found
  #002: H5Gtraverse.c line 397 in H5G_namei(): component not found
    major(10): Symbol table layer
    minor(48): Object not found
  #003: H5Gstab.c line 161 in H5G_stab_find(): not found
    major(10): Symbol table layer
    minor(48): Object not found

When using 1.8.x, we skip H5Gget_objinfo all together and use
H5Lexists instead, but we would like to maintain compatibility with
1.6.x.

Thanks
Mark

2

Hi Mark,

Hi all,

I have a piece of code that checks for the existence of a group at
"/Step#0" by calling this on the file id:

H5Gget_objinfo( file_id, name, 1, NULL );

I've tried both name="/Step#0" and name="Step#0". Also, I've tried

g_id = H5Gopen(file_id, "/");
H5Gget_objinfo( g_id, name, 1, NULL );

but in all cases, I receive error messages of this type:

HDF5-DIAG: Error detected in HDF5 library version: 1.6.10 MPI-process
3. Back trace follows.
#000: H5G.c line 753 in H5Gget_objinfo(): cannot stat object
   major(01): Function arguments
   minor(29): Unable to initialize object
#001: H5G.c line 2134 in H5G_get_objinfo(): unable to stat object
   major(10): Symbol table layer
   minor(48): Object not found
#002: H5Gtraverse.c line 397 in H5G_namei(): component not found
   major(10): Symbol table layer
   minor(48): Object not found
#003: H5Gstab.c line 161 in H5G_stab_find(): not found
   major(10): Symbol table layer
   minor(48): Object not found

When using 1.8.x, we skip H5Gget_objinfo all together and use
H5Lexists instead, but we would like to maintain compatibility with
1.6.x.

  Yes, H5Gget_objinfo() is not very well designed for this purpose, but it's also the only tool available prior to the new APIs in 1.8.x release. One solution that has worked in an OK manner is to use the H5E_BEGIN_TRY/H5E_END_TRY macros around the call to H5Gget_objinfo(), so that the error stack is suppressed when the object doesn't exist.

  Quincey

···

On Jan 15, 2010, at 10:23 AM, Mark Howison wrote:

Thanks
Mark

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