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author | Binh-Minh Ribler <bmribler@hdfgroup.org> | 2015-04-06 03:52:35 (GMT) |
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committer | Binh-Minh Ribler <bmribler@hdfgroup.org> | 2015-04-06 03:52:35 (GMT) |
commit | 2a2a79742dc2ee154b7571a518b97413599b29a6 (patch) | |
tree | cda2e53402608cdf22eb2be41d27c6bb63c32ad9 /c++/src/H5Location.h | |
parent | 150b85cc44903c005009552d692da50a4aa6c86f (diff) | |
download | hdf5-2a2a79742dc2ee154b7571a518b97413599b29a6.zip hdf5-2a2a79742dc2ee154b7571a518b97413599b29a6.tar.gz hdf5-2a2a79742dc2ee154b7571a518b97413599b29a6.tar.bz2 |
[svn-r26731] Purpose: Fixed HDFFV-7947
Description:
When copy constructor or constructor that takes an existing id is invoked,
the C ref counter stays the same but there is an extra C++ object which
later is destroyed and may cause the HDF5 id to be closed prematurely. The
C++ library needs to increment the ref counter in these situations, so that
the C library will not close the id when it is still being referenced.
However, the incrementing of ref count left some objects opened at the end
of the program, perhaps, due to compiler's optimization on cons/destructors. The constructor, that takes an existing id, needs to increment the counter
but it seems that the matching destructor wasn't invoked. The workaround
is to have a function for each class that has "id" that only sets the id
and not increment the ref count for the library to use in these situations.
These functions are "friend" and not public.
The friend functions are:
void f_Attribute_setId(Attribute *, hid_t)
void f_DataSet_setId(DataSet *, hid_t)
void f_DataSpace_setId(DataSpace *, hid_t)
void f_DataType_setId(DataType *, hid_t)
Merged from trunk: r26655
Platforms tested:
Linux/64 (platypus)
Linux/32 2.6 (jam Intel 15.0)
SunOS 5.11 (emu)
Diffstat (limited to 'c++/src/H5Location.h')
-rw-r--r-- | c++/src/H5Location.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/c++/src/H5Location.h b/c++/src/H5Location.h index 9c9ecec..dc6ae51 100644 --- a/c++/src/H5Location.h +++ b/c++/src/H5Location.h @@ -165,6 +165,10 @@ class H5_DLLCPP H5Location : public IdComponent { // Retrieves the type of object that an object reference points to. H5O_type_t p_get_ref_obj_type(void *ref, H5R_type_t ref_type) const; + // Sets the identifier of this object to a new value. - this one + // doesn't increment reference count + virtual void p_setId(const hid_t new_id) = 0; + #endif // DOXYGEN_SHOULD_SKIP_THIS // Noop destructor. |