diff options
Diffstat (limited to 'src/H5Shyper.c')
-rw-r--r-- | src/H5Shyper.c | 82 |
1 files changed, 43 insertions, 39 deletions
diff --git a/src/H5Shyper.c b/src/H5Shyper.c index 93a93b7..dfc0d06 100644 --- a/src/H5Shyper.c +++ b/src/H5Shyper.c @@ -54,8 +54,8 @@ static herr_t H5S_hyper_get_seq_list(const H5S_t *space, unsigned flags, static herr_t H5S_hyper_release(H5S_t *space); static htri_t H5S_hyper_is_valid(const H5S_t *space); static hssize_t H5S_hyper_serial_size(const H5S_t *space); -static herr_t H5S_hyper_serialize(const H5S_t *space, uint8_t *buf); -static herr_t H5S_hyper_deserialize(H5S_t *space, const uint8_t *buf); +static herr_t H5S_hyper_serialize(const H5S_t *space, uint8_t **p); +static herr_t H5S_hyper_deserialize(H5S_t *space, const uint8_t **p); static herr_t H5S_hyper_bounds(const H5S_t *space, hsize_t *start, hsize_t *end); static herr_t H5S_hyper_offset(const H5S_t *space, hsize_t *offset); static htri_t H5S_hyper_is_contiguous(const H5S_t *space); @@ -1994,7 +1994,7 @@ H5S_hyper_serial_size(const H5S_t *space) REVISION LOG --------------------------------------------------------------------------*/ static herr_t -H5S_hyper_serialize_helper (const H5S_hyper_span_info_t *spans, hsize_t *start, hsize_t *end, hsize_t rank, uint8_t **buf) +H5S_hyper_serialize_helper (const H5S_hyper_span_info_t *spans, hsize_t *start, hsize_t *end, hsize_t rank, uint8_t **p) { H5S_hyper_span_t *curr; /* Pointer to current hyperslab span */ hsize_t u; /* Index variable */ @@ -2007,7 +2007,7 @@ H5S_hyper_serialize_helper (const H5S_hyper_span_info_t *spans, hsize_t *start, HDassert(start); HDassert(end); HDassert(rank < H5O_LAYOUT_NDIMS); - HDassert(buf && *buf); + HDassert(p && *p); /* Walk through the list of spans, recursing or outputing them */ curr=spans->head; @@ -2019,7 +2019,7 @@ H5S_hyper_serialize_helper (const H5S_hyper_span_info_t *spans, hsize_t *start, end[rank]=curr->high; /* Recurse down to the next dimension */ - if(H5S_hyper_serialize_helper(curr->down,start,end,rank+1,buf)<0) + if(H5S_hyper_serialize_helper(curr->down,start,end,rank+1,p)<0) HGOTO_ERROR(H5E_INTERNAL, H5E_CANTFREE, FAIL, "failed to release hyperslab spans") } /* end if */ else { @@ -2027,17 +2027,17 @@ H5S_hyper_serialize_helper (const H5S_hyper_span_info_t *spans, hsize_t *start, /* Encode previous starting points */ for(u=0; u<rank; u++) - UINT32ENCODE(*buf, (uint32_t)start[u]); + UINT32ENCODE(*p, (uint32_t)start[u]); /* Encode starting point for this span */ - UINT32ENCODE(*buf, (uint32_t)curr->low); + UINT32ENCODE(*p, (uint32_t)curr->low); /* Encode previous ending points */ for(u=0; u<rank; u++) - UINT32ENCODE(*buf, (uint32_t)end[u]); + UINT32ENCODE(*p, (uint32_t)end[u]); /* Encode starting point for this span */ - UINT32ENCODE(*buf, (uint32_t)curr->high); + UINT32ENCODE(*p, (uint32_t)curr->high); } /* end else */ /* Advance to next node */ @@ -2055,9 +2055,11 @@ done: PURPOSE Serialize the current selection into a user-provided buffer. USAGE - herr_t H5S_hyper_serialize(space, buf) - H5S_t *space; IN: Dataspace pointer of selection to serialize - uint8 *buf; OUT: Buffer to put serialized selection into + herr_t H5S_hyper_serialize(space, p) + const H5S_t *space; IN: Dataspace with selection to serialize + uint8_t **p; OUT: Pointer to buffer to put serialized + selection. Will be advanced to end of + serialized selection. RETURNS Non-negative on success/Negative on failure DESCRIPTION @@ -2069,7 +2071,7 @@ done: REVISION LOG --------------------------------------------------------------------------*/ static herr_t -H5S_hyper_serialize (const H5S_t *space, uint8_t *buf) +H5S_hyper_serialize (const H5S_t *space, uint8_t **p) { const H5S_hyper_dim_t *diminfo; /* Alias for dataspace's diminfo information */ hsize_t tmp_count[H5O_LAYOUT_NDIMS]; /* Temporary hyperslab counts */ @@ -2089,14 +2091,14 @@ H5S_hyper_serialize (const H5S_t *space, uint8_t *buf) HDassert(space); /* Store the preamble information */ - UINT32ENCODE(buf, (uint32_t)H5S_GET_SELECT_TYPE(space)); /* Store the type of selection */ - UINT32ENCODE(buf, (uint32_t)1); /* Store the version number */ - UINT32ENCODE(buf, (uint32_t)0); /* Store the un-used padding */ - lenp = buf; /* keep the pointer to the length location for later */ - buf += 4; /* skip over space for length */ + UINT32ENCODE(*p, (uint32_t)H5S_GET_SELECT_TYPE(space)); /* Store the type of selection */ + UINT32ENCODE(*p, (uint32_t)1); /* Store the version number */ + UINT32ENCODE(*p, (uint32_t)0); /* Store the un-used padding */ + lenp = *p; /* keep the pointer to the length location for later */ + *p += 4; /* skip over space for length */ /* Encode number of dimensions */ - UINT32ENCODE(buf, (uint32_t)space->extent.rank); + UINT32ENCODE(*p, (uint32_t)space->extent.rank); len += 4; /* Check for a "regular" hyperslab selection */ @@ -2114,7 +2116,7 @@ H5S_hyper_serialize (const H5S_t *space, uint8_t *buf) /* Encode number of hyperslabs */ H5_CHECK_OVERFLOW(block_count, hsize_t, uint32_t); - UINT32ENCODE(buf, (uint32_t)block_count); + UINT32ENCODE(*p, (uint32_t)block_count); len+=4; /* Now serialize the information for the regular hyperslab */ @@ -2137,11 +2139,11 @@ H5S_hyper_serialize (const H5S_t *space, uint8_t *buf) /* Encode hyperslab starting location */ for(u = 0; u < ndims; u++) - UINT32ENCODE(buf, (uint32_t)offset[u]); + UINT32ENCODE(*p, (uint32_t)offset[u]); /* Encode hyperslab ending location */ for(u = 0; u < ndims; u++) - UINT32ENCODE(buf, (uint32_t)(offset[u] + (diminfo[u].block - 1))); + UINT32ENCODE(*p, (uint32_t)(offset[u] + (diminfo[u].block - 1))); /* Move the offset to the next sequence to start */ offset[fast_dim]+=diminfo[fast_dim].stride; @@ -2192,15 +2194,15 @@ H5S_hyper_serialize (const H5S_t *space, uint8_t *buf) /* Encode number of hyperslabs */ block_count = H5S_hyper_span_nblocks(space->select.sel_info.hslab->span_lst); H5_CHECK_OVERFLOW(block_count, hsize_t, uint32_t); - UINT32ENCODE(buf, (uint32_t)block_count); + UINT32ENCODE(*p, (uint32_t)block_count); len+=4; /* Add 8 bytes times the rank for each hyperslab selected */ H5_CHECK_OVERFLOW((8 * space->extent.rank * block_count), hsize_t, size_t); - len += (size_t)(8 * space->extent.rank * block_count); + len += (uint32_t)(8 * space->extent.rank * block_count); /* Encode each hyperslab in selection */ - H5S_hyper_serialize_helper(space->select.sel_info.hslab->span_lst, start, end, (hsize_t)0, &buf); + H5S_hyper_serialize_helper(space->select.sel_info.hslab->span_lst, start, end, (hsize_t)0, p); } /* end else */ /* Encode length */ @@ -2216,9 +2218,12 @@ H5S_hyper_serialize (const H5S_t *space, uint8_t *buf) PURPOSE Deserialize the current selection from a user-provided buffer. USAGE - herr_t H5S_hyper_deserialize(space, buf) - H5S_t *space; IN/OUT: Dataspace pointer to place selection into - uint8 *buf; IN: Buffer to retrieve serialized selection from + herr_t H5S_hyper_deserialize(space, p) + H5S_t *space; IN/OUT: Dataspace pointer to place + selection into + uint8 **p; OUT: Pointer to buffer holding serialized + selection. Will be advanced to end of + serialized selection. RETURNS Non-negative on success/Negative on failure DESCRIPTION @@ -2230,9 +2235,9 @@ H5S_hyper_serialize (const H5S_t *space, uint8_t *buf) REVISION LOG --------------------------------------------------------------------------*/ static herr_t -H5S_hyper_deserialize (H5S_t *space, const uint8_t *buf) +H5S_hyper_deserialize (H5S_t *space, const uint8_t **p) { - uint32_t rank; /* rank of points */ + unsigned rank; /* rank of points */ size_t num_elem=0; /* number of elements in selection */ hsize_t start[H5O_LAYOUT_NDIMS]; /* hyperslab start information */ hsize_t end[H5O_LAYOUT_NDIMS]; /* hyperslab end information */ @@ -2251,14 +2256,13 @@ H5S_hyper_deserialize (H5S_t *space, const uint8_t *buf) /* Check args */ HDassert(space); - HDassert(buf); + HDassert(p); + HDassert(*p); /* Deserialize slabs to select */ - buf+=16; /* Skip over selection header */ - UINT32DECODE(buf,rank); /* decode the rank of the point selection */ - if(rank!=space->extent.rank) - HGOTO_ERROR(H5E_DATASPACE, H5E_BADRANGE, FAIL, "rank of pointer does not match dataspace") - UINT32DECODE(buf,num_elem); /* decode the number of points */ + /* (The header and rank have already beed decoded) */ + rank = space->extent.rank; /* Retrieve rank from space */ + UINT32DECODE(*p,num_elem); /* decode the number of points */ /* Set the count & stride for all blocks */ for(tcount=count,tstride=stride,j=0; j<rank; j++,tstride++,tcount++) { @@ -2270,14 +2274,14 @@ H5S_hyper_deserialize (H5S_t *space, const uint8_t *buf) for(i=0; i<num_elem; i++) { /* Decode the starting points */ for(tstart=start,j=0; j<rank; j++,tstart++) - UINT32DECODE(buf, *tstart); + UINT32DECODE(*p, *tstart); /* Decode the ending points */ for(tend=end,j=0; j<rank; j++,tend++) - UINT32DECODE(buf, *tend); + UINT32DECODE(*p, *tend); /* Change the ending points into blocks */ - for(tblock=block,tstart=start,tend=end,j=0; j<(unsigned)rank; j++,tstart++,tend++,tblock++) + for(tblock=block,tstart=start,tend=end,j=0; j<rank; j++,tstart++,tend++,tblock++) *tblock=(*tend-*tstart)+1; /* Select or add the hyperslab to the current selection */ |