diff options
Diffstat (limited to 'src/H5Oshared.c')
| -rw-r--r-- | src/H5Oshared.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/H5Oshared.c b/src/H5Oshared.c index 44b0992..e78a1d3 100644 --- a/src/H5Oshared.c +++ b/src/H5Oshared.c @@ -578,6 +578,60 @@ done: /*------------------------------------------------------------------------- + * Function: H5O_shared_post_copy_file + * + * Purpose: Delate a shared message and replace with a new one. + * The function is needed at cases such as coping a shared reg_ref attribute. + * When a shared reg_ref attribute is copied from one file to + * another, the values in file need to be replaced. The only way + * to complish that is to delete the old message and write the + * new message with the correct values. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Peter Cao + * xcao@hdfgroup.org + * May 24 2007 + * + *------------------------------------------------------------------------- + */ +herr_t +H5O_shared_post_copy_file(H5F_t *f, hid_t dxpl_id, H5O_t *oh, void *mesg) +{ + H5O_shared_t *old_sh_mesg; + htri_t shared_mesg; /* Whether the message should be shared */ + unsigned msg_type_id; /* Message's type ID */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_NOAPI_NOINIT(H5O_shared_post_copy_file) + + /* check args */ + HDassert(f); + HDassert(mesg); + + /* the old shared message */ + old_sh_mesg = (H5O_shared_t *) mesg; + + /* save the type id for later use */ + msg_type_id = old_sh_mesg->msg_type_id; + + /* Remove the old message from the SOHM storage */ + if(H5SM_delete(f, dxpl_id, oh, old_sh_mesg) < 0) + HGOTO_ERROR(H5E_OHDR, H5E_CANTFREE, FAIL, "unable to find attribute information for object") + + /* Add the new message */ + if((shared_mesg = H5SM_try_share(f, dxpl_id, oh, msg_type_id, mesg, NULL)) == 0) + HGOTO_ERROR(H5E_OHDR, H5E_BADMESG, FAIL, "message changed sharing status") + else if(shared_mesg < 0) + HGOTO_ERROR(H5E_OHDR, H5E_BADMESG, FAIL, "can't share message") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5O_shared_post_copy_file() */ + + + +/*------------------------------------------------------------------------- * Function: H5O_shared_debug * * Purpose: Prints debugging info for the message |