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-rw-r--r--src/H5Tconv.c152
1 files changed, 80 insertions, 72 deletions
diff --git a/src/H5Tconv.c b/src/H5Tconv.c
index 897f20b..4950371 100644
--- a/src/H5Tconv.c
+++ b/src/H5Tconv.c
@@ -2384,86 +2384,94 @@ H5T_conv_vlen(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata, hsize_t nelmts,
s = sp;
d = *dptr;
- /* Get length of element sequences */
- if((seq_len=(*(src->u.vlen.getlen))(src->u.vlen.f,s))<0)
- HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "incorrect length");
- H5_CHECK_OVERFLOW(seq_len,hssize_t,size_t);
- src_size=(size_t)seq_len*src_base_size;
- dst_size=(size_t)seq_len*dst_base_size;
-
- /* Check if conversion buffer is large enough, resize if
- * necessary */
- if(conv_buf_size<MAX(src_size,dst_size)) {
- conv_buf_size=MAX(src_size,dst_size);
- if((conv_buf=H5FL_BLK_REALLOC(vlen_seq,conv_buf, conv_buf_size))==NULL)
- HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for type conversion");
- } /* end if */
-
- /* Read in VL sequence */
- if((*(src->u.vlen.read))(src->u.vlen.f,dxpl_id,s,conv_buf,src_size)<0)
- HGOTO_ERROR(H5E_DATATYPE, H5E_READERROR, FAIL, "can't read VL data");
-
- /* Check if temporary buffer is large enough, resize if necessary */
- /* (Chain off the conversion buffer size) */
- if((tpath->cdata.need_bkg || H5T_detect_class(dst->parent, H5T_VLEN))
- && tmp_buf_size<conv_buf_size) {
- /* Set up initial background buffer */
- tmp_buf_size=conv_buf_size;
- if((tmp_buf=H5FL_BLK_REALLOC(vlen_seq,tmp_buf,tmp_buf_size))==NULL)
- HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for type conversion");
+ /* Check for "nil" source sequence */
+ if((*(src->u.vlen.isnull))(src->u.vlen.f,s)) {
+ /* Write "nil" sequence to destination location */
+ if((*(dst->u.vlen.setnull))(dst->u.vlen.f,dxpl_id,d,bg_ptr)<0)
+ HGOTO_ERROR(H5E_DATATYPE, H5E_WRITEERROR, FAIL, "can't set VL data to 'nil'");
} /* end if */
+ else {
+ /* Get length of element sequences */
+ if((seq_len=(*(src->u.vlen.getlen))(s))<0)
+ HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "incorrect length");
+ H5_CHECK_OVERFLOW(seq_len,hssize_t,size_t);
+ src_size=(size_t)seq_len*src_base_size;
+ dst_size=(size_t)seq_len*dst_base_size;
+
+ /* Check if conversion buffer is large enough, resize if
+ * necessary */
+ if(conv_buf_size<MAX(src_size,dst_size)) {
+ conv_buf_size=MAX(src_size,dst_size);
+ if((conv_buf=H5FL_BLK_REALLOC(vlen_seq,conv_buf, conv_buf_size))==NULL)
+ HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for type conversion");
+ } /* end if */
- /* If we are writing and there is a nested VL type, read
- * the sequence into the background buffer */
- if(nested) {
- uint8_t *tmp=bg_ptr;
- UINT32DECODE(tmp, bg_seq_len);
- if(bg_seq_len>0) {
- H5_CHECK_OVERFLOW( bg_seq_len*MAX(src_base_size,dst_base_size) ,hsize_t,size_t);
- if(tmp_buf_size<(size_t)(bg_seq_len*MAX(src_base_size, dst_base_size))) {
- tmp_buf_size=(size_t)(bg_seq_len*MAX(src_base_size, dst_base_size));
- if((tmp_buf=H5FL_BLK_REALLOC(vlen_seq,tmp_buf, tmp_buf_size))==NULL)
- HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for type conversion");
- }
- H5F_addr_decode(dst->u.vlen.f, (const uint8_t **)&tmp, &(bg_hobjid.addr));
- INT32DECODE(tmp, bg_hobjid.idx);
- if(H5HG_read(dst->u.vlen.f,dxpl_id,&bg_hobjid,tmp_buf)==NULL)
- HGOTO_ERROR (H5E_DATATYPE, H5E_READERROR, FAIL, "can't read VL sequence into background buffer");
- } /* end if */
+ /* Read in VL sequence */
+ if((*(src->u.vlen.read))(src->u.vlen.f,dxpl_id,s,conv_buf,src_size)<0)
+ HGOTO_ERROR(H5E_DATATYPE, H5E_READERROR, FAIL, "can't read VL data");
+
+ /* Check if temporary buffer is large enough, resize if necessary */
+ /* (Chain off the conversion buffer size) */
+ if((tpath->cdata.need_bkg || H5T_detect_class(dst->parent, H5T_VLEN))
+ && tmp_buf_size<conv_buf_size) {
+ /* Set up initial background buffer */
+ tmp_buf_size=conv_buf_size;
+ if((tmp_buf=H5FL_BLK_REALLOC(vlen_seq,tmp_buf,tmp_buf_size))==NULL)
+ HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for type conversion");
+ } /* end if */
- /* If the sequence gets shorter, pad out the original sequence with zeros */
- H5_CHECK_OVERFLOW(bg_seq_len,hsize_t,hssize_t);
- if((hssize_t)bg_seq_len<seq_len) {
- H5_CHECK_OVERFLOW((seq_len-bg_seq_len),hsize_t,size_t);
- HDmemset((uint8_t *)tmp_buf+dst_base_size*bg_seq_len,0,(size_t)(seq_len-bg_seq_len)*dst_base_size);
+ /* If we are writing and there is a nested VL type, read
+ * the sequence into the background buffer */
+ if(nested) {
+ uint8_t *tmp=bg_ptr;
+ UINT32DECODE(tmp, bg_seq_len);
+ if(bg_seq_len>0) {
+ H5_CHECK_OVERFLOW( bg_seq_len*MAX(src_base_size,dst_base_size) ,hsize_t,size_t);
+ if(tmp_buf_size<(size_t)(bg_seq_len*MAX(src_base_size, dst_base_size))) {
+ tmp_buf_size=(size_t)(bg_seq_len*MAX(src_base_size, dst_base_size));
+ if((tmp_buf=H5FL_BLK_REALLOC(vlen_seq,tmp_buf, tmp_buf_size))==NULL)
+ HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for type conversion");
+ }
+ H5F_addr_decode(dst->u.vlen.f, (const uint8_t **)&tmp, &(bg_hobjid.addr));
+ INT32DECODE(tmp, bg_hobjid.idx);
+ if(H5HG_read(dst->u.vlen.f,dxpl_id,&bg_hobjid,tmp_buf)==NULL)
+ HGOTO_ERROR (H5E_DATATYPE, H5E_READERROR, FAIL, "can't read VL sequence into background buffer");
+ } /* end if */
+
+ /* If the sequence gets shorter, pad out the original sequence with zeros */
+ H5_CHECK_OVERFLOW(bg_seq_len,hsize_t,hssize_t);
+ if((hssize_t)bg_seq_len<seq_len) {
+ H5_CHECK_OVERFLOW((seq_len-bg_seq_len),hsize_t,size_t);
+ HDmemset((uint8_t *)tmp_buf+dst_base_size*bg_seq_len,0,(size_t)(seq_len-bg_seq_len)*dst_base_size);
+ } /* end if */
} /* end if */
- } /* end if */
- /* Convert VL sequence */
- H5_CHECK_OVERFLOW(seq_len,hssize_t,hsize_t);
- if (H5T_convert(tpath, tsrc_id, tdst_id, (hsize_t)seq_len, 0, bkg_stride, conv_buf, tmp_buf, dxpl_id)<0)
- HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "datatype conversion failed");
+ /* Convert VL sequence */
+ H5_CHECK_OVERFLOW(seq_len,hssize_t,hsize_t);
+ if (H5T_convert(tpath, tsrc_id, tdst_id, (hsize_t)seq_len, 0, bkg_stride, conv_buf, tmp_buf, dxpl_id)<0)
+ HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "datatype conversion failed");
+
+ /* Write sequence to destination location */
+ if((*(dst->u.vlen.write))(dst->u.vlen.f,dxpl_id,d,conv_buf, bg_ptr, (hsize_t)seq_len,(hsize_t)dst_base_size)<0)
+ HGOTO_ERROR(H5E_DATATYPE, H5E_WRITEERROR, FAIL, "can't write VL data");
- /* Write sequence to destination location */
- if((*(dst->u.vlen.write))(dst->u.vlen.f,dxpl_id,d,conv_buf, bg_ptr, (hsize_t)seq_len,(hsize_t)dst_base_size)<0)
- HGOTO_ERROR(H5E_DATATYPE, H5E_WRITEERROR, FAIL, "can't write VL data");
-
- /* For nested VL case, free leftover heap objects from the deeper level if the length of new data elements is shorted than the old data elements.*/
- H5_CHECK_OVERFLOW(bg_seq_len,hsize_t,hssize_t);
- if(nested && seq_len<(hssize_t)bg_seq_len) {
- uint8_t *tmp_p=tmp_buf;
- tmp_p += seq_len*dst_base_size;
- for(i=0; i<(bg_seq_len-seq_len); i++) {
- UINT32DECODE(tmp_p, parent_seq_len);
- if(parent_seq_len>0) {
- H5F_addr_decode(dst->u.vlen.f, (const uint8_t **)&tmp_p, &(parent_hobjid.addr));
- INT32DECODE(tmp_p, parent_hobjid.idx);
- if(H5HG_remove(dst->u.vlen.f, dxpl_id,&parent_hobjid)<0)
- HGOTO_ERROR(H5E_DATATYPE, H5E_WRITEERROR, FAIL, "Unable to remove heap object");
+ /* For nested VL case, free leftover heap objects from the deeper level if the length of new data elements is shorted than the old data elements.*/
+ H5_CHECK_OVERFLOW(bg_seq_len,hsize_t,hssize_t);
+ if(nested && seq_len<(hssize_t)bg_seq_len) {
+ uint8_t *tmp_p=tmp_buf;
+ tmp_p += seq_len*dst_base_size;
+ for(i=0; i<(bg_seq_len-seq_len); i++) {
+ UINT32DECODE(tmp_p, parent_seq_len);
+ if(parent_seq_len>0) {
+ H5F_addr_decode(dst->u.vlen.f, (const uint8_t **)&tmp_p, &(parent_hobjid.addr));
+ INT32DECODE(tmp_p, parent_hobjid.idx);
+ if(H5HG_remove(dst->u.vlen.f, dxpl_id,&parent_hobjid)<0)
+ HGOTO_ERROR(H5E_DATATYPE, H5E_WRITEERROR, FAIL, "Unable to remove heap object");
+ }
}
}
- }
-
+ } /* end else */
+
/*
* If we had used a temporary buffer for the destination
* then we should copy the value to the true destination
generated by cgit v0.12 at 2024-11-17 13:14:06 (GMT)