hdf5.git - Mirror from: https://github.com/HDFGroup/hdf5.git

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author	Quincey Koziol <koziol@hdfgroup.org>	2016-12-01 09:41:13 (GMT)
committer	Quincey Koziol <koziol@hdfgroup.org>	2016-12-01 09:41:13 (GMT)
commit	5d7d029b97b36d1c380cef82d637342921bf3a1d (patch)
tree	76ac3ff4b2240412995ef5902f62601dc9d529f1 /bin
parent	65be68a17d1e5bec7e51e5f3e2e03d22163f7817 (diff)
parent	63bcd73f1f53a8b4bb31083cbc30f9a90663438f (diff)
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Merge branch 'develop' of https://bitbucket.hdfgroup.org/scm/~koziol/hdf5 into develop_swmr_merge

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/**************************************************************************** * NCSA HDF * * Software Development Group * * National Center for Supercomputing Applications * * University of Illinois at Urbana-Champaign * * 605 E. Springfield, Champaign IL 61820 * * * * For conditions of distribution and use, see the accompanying * * hdf/COPYING file. * * * ****************************************************************************/ #ifdef RCSID static char RcsId[] = "@(#)$Revision$"; #endif /* $Id$ */ #define H5A_PACKAGE /*prevent warning from including H5Tpkg.h */ #include <H5private.h> #include <H5Eprivate.h> #include <H5Gprivate.h> #include <H5MMprivate.h> #include <H5Oprivate.h> #include <H5Apkg.h> #define PABLO_MASK H5O_attr_mask /* PRIVATE PROTOTYPES */ static herr_t H5O_attr_encode (H5F_t *f, uint8_t *p, const void *mesg); static void *H5O_attr_decode (H5F_t *f, const uint8_t *p, H5O_shared_t *sh); static void *H5O_attr_copy (const void *_mesg, void *_dest); static size_t H5O_attr_size (H5F_t *f, const void *_mesg); static herr_t H5O_attr_reset (void *_mesg); static herr_t H5O_attr_debug (H5F_t *f, const void *_mesg, FILE * stream, intn indent, intn fwidth); /* This message derives from H5O */ const H5O_class_t H5O_ATTR[1] = {{ H5O_ATTR_ID, /* message id number */ "attribute", /* message name for debugging */ sizeof(H5A_t), /* native message size */ H5O_attr_decode, /* decode message */ H5O_attr_encode, /* encode message */ H5O_attr_copy, /* copy the native value */ H5O_attr_size, /* size of raw message */ H5O_attr_reset, /* reset method */ NULL, /* get share method */ NULL, /* set share method */ H5O_attr_debug, /* debug the message */ }}; #define H5O_ATTR_VERSION 1 /* Interface initialization */ static intn interface_initialize_g = 0; #define INTERFACE_INIT NULL /*-------------------------------------------------------------------------- NAME H5O_attr_decode PURPOSE Decode a attribute message and return a pointer to a memory struct with the decoded information USAGE void *H5O_attr_decode(f, raw_size, p) H5F_t *f; IN: pointer to the HDF5 file struct size_t raw_size; IN: size of the raw information buffer const uint8_t *p; IN: the raw information buffer RETURNS Pointer to the new message in native order on success, NULL on failure DESCRIPTION This function decodes the "raw" disk form of a attribute message into a struct in memory native format. The struct is allocated within this function using malloc() and is returned to the caller. * * Modifications: * Robb Matzke, 17 Jul 1998 * Added padding for alignment. * * Robb Matzke, 20 Jul 1998 * Added a version number at the beginning. --------------------------------------------------------------------------*/ static void * H5O_attr_decode(H5F_t *f, const uint8_t *p, H5O_shared_t UNUSED *sh) { H5A_t *attr = NULL; H5S_simple_t *simple; /*simple dimensionality information */ size_t name_len; /*attribute name length */ intn version; /*message version number*/ FUNC_ENTER(H5O_attr_decode, NULL); /* check args */ assert(f); assert(p); if (NULL==(attr = H5MM_calloc(sizeof(H5A_t)))) { HRETURN_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed"); } /* Version number */ version = *p++; if (version!=H5O_ATTR_VERSION) { HRETURN_ERROR(H5E_OHDR, H5E_CANTLOAD, NULL, "bad version number for attribute message"); } /* Reserved */ p++; /* * Decode the sizes of the parts of the attribute. The sizes stored in * the file are exact but the parts are aligned on 8-byte boundaries. */ UINT16DECODE(p, name_len); /*including null*/ UINT16DECODE(p, attr->dt_size); UINT16DECODE(p, attr->ds_size); /* Decode and store the name */ if (NULL==(attr->name=H5MM_malloc(name_len))) { HRETURN_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed"); } HDmemcpy(attr->name,p,name_len); p += H5O_ALIGN(name_len); /* advance the memory pointer */ /* decode the attribute datatype */ if((attr->dt=(H5O_DTYPE->decode)(f,p,NULL))==NULL) { HRETURN_ERROR(H5E_ATTR, H5E_CANTDECODE, NULL, "can't decode attribute datatype"); } p += H5O_ALIGN(attr->dt_size); /* decode the attribute dataspace */ if (NULL==(attr->ds = H5MM_calloc(sizeof(H5S_t)))) { HRETURN_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed"); } if((simple=(H5O_SDSPACE->decode)(f,p,NULL))!=NULL) { attr->ds->extent.type = H5S_SIMPLE; HDmemcpy(&(attr->ds->extent.u.simple),simple, sizeof(H5S_simple_t)); H5MM_xfree(simple); } else { attr->ds->extent.type = H5S_SCALAR; } p += H5O_ALIGN(attr->ds_size); /* Compute the size of the data */ attr->data_size=H5S_get_simple_extent_npoints(attr->ds)*H5T_get_size(attr->dt); /* Go get the data */ if (NULL==(attr->data = H5MM_malloc(attr->data_size))) { HRETURN_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed"); } HDmemcpy(attr->data,p,attr->data_size); /* Indicate that the fill values aren't to be written out */ attr->initialized=1; #ifdef LOTSLATER if (hobj) { attr->sh_heap = *hobj; attr->sh_file = f; } #endif FUNC_LEAVE(attr); } /*-------------------------------------------------------------------------- NAME H5O_attr_encode PURPOSE Encode a simple attribute message USAGE herr_t H5O_attr_encode(f, raw_size, p, mesg) H5F_t *f; IN: pointer to the HDF5 file struct const uint8 *p; IN: the raw information buffer const void *mesg; IN: Pointer to the simple datatype struct RETURNS Non-negative on success/Negative on failure DESCRIPTION This function encodes the native memory form of the attribute message in the "raw" disk form. * * Modifications: * Robb Matzke, 17 Jul 1998 * Added padding for alignment. * * Robb Matzke, 20 Jul 1998 * Added a version number at the beginning. --------------------------------------------------------------------------*/ static herr_t H5O_attr_encode(H5F_t *f, uint8_t *p, const void *mesg) { const H5A_t *attr = (const H5A_t *) mesg; size_t name_len; /* Attribute name length */ FUNC_ENTER(H5O_attr_encode, FAIL); /* check args */ assert(f); assert(p); assert(attr); /* Version */ *p++ = H5O_ATTR_VERSION; /* Reserved */ *p++ = 0; /* * Encode the lengths of the various parts of the attribute message. The * encoded lengths are exact but we pad each part except the data to be a * multiple of eight bytes. */ name_len = HDstrlen(attr->name)+1; UINT16ENCODE(p, name_len); UINT16ENCODE(p, attr->dt_size); UINT16ENCODE(p, attr->ds_size); /* * Write the name including null terminator padded to the correct number * of bytes. */ HDmemcpy(p, attr->name, name_len); HDmemset(p+name_len, 0, H5O_ALIGN(name_len)-name_len); p += H5O_ALIGN(name_len); /* encode the attribute datatype */ if((H5O_DTYPE->encode)(f,p,attr->dt)<0) { HRETURN_ERROR(H5E_ATTR, H5E_CANTENCODE, FAIL, "can't encode attribute datatype"); } HDmemset(p+attr->dt_size, 0, H5O_ALIGN(attr->dt_size)-attr->dt_size); p += H5O_ALIGN(attr->dt_size); /* encode the attribute dataspace */ if((H5O_SDSPACE->encode)(f,p,&(attr->ds->extent.u.simple))<0) { HRETURN_ERROR(H5E_ATTR, H5E_CANTENCODE, FAIL, "can't encode attribute dataspace"); } HDmemset(p+attr->ds_size, 0, H5O_ALIGN(attr->ds_size)-attr->ds_size); p += H5O_ALIGN(attr->ds_size); /* Store attribute data */ HDmemcpy(p,attr->data,attr->data_size); FUNC_LEAVE(SUCCEED); } /*-------------------------------------------------------------------------- NAME H5O_attr_copy PURPOSE Copies a message from MESG to DEST, allocating DEST if necessary. USAGE void *H5O_attr_copy(mesg, dest) const void *mesg; IN: Pointer to the source attribute struct const void *dest; IN: Pointer to the destination attribute struct RETURNS Pointer to DEST on success, NULL on failure DESCRIPTION This function copies a native (memory) attribute message, allocating the destination structure if necessary. --------------------------------------------------------------------------*/ static void * H5O_attr_copy(const void *_src, void *_dst) { const H5A_t *src = (const H5A_t *) _src; H5A_t *dst = NULL; FUNC_ENTER(H5O_attr_copy, NULL); /* check args */ assert(src); /* copy */ if (NULL == (dst = H5A_copy(src))) { HRETURN_ERROR(H5E_ATTR, H5E_CANTINIT, NULL, "can't copy attribute"); } /* was result already allocated? */ if (_dst) { *((H5A_t *) _dst) = *dst; H5MM_xfree(dst); dst = (H5A_t *) _dst; } FUNC_LEAVE((void *) dst); } /*-------------------------------------------------------------------------- NAME H5O_attr_size PURPOSE Return the raw message size in bytes USAGE size_t H5O_attr_size(f, mesg) H5F_t *f; IN: pointer to the HDF5 file struct const void *mesg; IN: Pointer to the source attribute struct RETURNS Size of message on success, 0 on failure DESCRIPTION This function returns the size of the raw attribute message on success. (Not counting the message type or size fields, only the data portion of the message). It doesn't take into account alignment. * * Modified: * Robb Matzke, 17 Jul 1998 * Added padding between message parts for alignment. --------------------------------------------------------------------------*/ static size_t H5O_attr_size(H5F_t UNUSED *f, const void *mesg) { size_t ret_value = 0; size_t name_len; const H5A_t *attr = (const H5A_t *) mesg; FUNC_ENTER(H5O_attr_size, 0); assert(attr); name_len = HDstrlen(attr->name)+1; ret_value = 2 + /*name size inc. null */ 2 + /*type size */ 2 + /*space size */ 2 + /*reserved */ H5O_ALIGN(name_len) + /*attribute name */ H5O_ALIGN(attr->dt_size) + /*data type */ H5O_ALIGN(attr->ds_size) + /*data space */ attr->data_size; /*the data itself */ FUNC_LEAVE(ret_value); } /*------------------------------------------------------------------------- * Function: H5O_attr_reset * * Purpose: Frees resources within a attribute message, but doesn't free * the message itself. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Tuesday, December 9, 1997 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_attr_reset(void *_mesg) { H5A_t *attr = (H5A_t *) _mesg; H5A_t *tmp = NULL; FUNC_ENTER(H5O_attr_reset, FAIL); if (attr) { if (NULL==(tmp = H5MM_malloc(sizeof(H5A_t)))) { HRETURN_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed"); } HDmemcpy(tmp,attr,sizeof(H5A_t)); H5A_close(tmp); HDmemset(attr, 0, sizeof(H5A_t)); } FUNC_LEAVE(SUCCEED); } /*-------------------------------------------------------------------------- NAME H5O_attr_debug PURPOSE Prints debugging information for an attribute message USAGE void *H5O_attr_debug(f, mesg, stream, indent, fwidth) H5F_t *f; IN: pointer to the HDF5 file struct const void *mesg; IN: Pointer to the source attribute struct FILE *stream; IN: Pointer to the stream for output data intn indent; IN: Amount to indent information by intn fwidth; IN: Field width (?) RETURNS Non-negative on success/Negative on failure DESCRIPTION This function prints debugging output to the stream passed as a parameter. --------------------------------------------------------------------------*/ static herr_t H5O_attr_debug(H5F_t *f, const void *_mesg, FILE * stream, intn indent, intn fwidth) { const H5A_t *mesg = (const H5A_t *)_mesg; FUNC_ENTER(H5O_attr_debug, FAIL); /* check args */ assert(f); assert(stream); assert(indent >= 0); assert(fwidth >= 0); fprintf(stream, "%*s%-*s \"%s\"\n", indent, "", fwidth, "Name:", mesg->name); fprintf(stream, "%*s%-*s %u\n", indent, "", fwidth, "Initialized:", (unsigned int)mesg->initialized); fprintf(stream, "%*s%-*s %u\n", indent, "", fwidth, "Opened:", (unsigned int)mesg->ent_opened); fprintf(stream, "%*sSymbol table entry...\n", indent, ""); H5G_ent_debug(f, &(mesg->ent), stream, indent+3, MAX(0, fwidth-3), NULL); fprintf(stream, "%*s%-*s %lu\n", indent, "", fwidth, "Data type size:", (unsigned long)(mesg->dt_size)); fprintf(stream, "%*sData type...\n", indent, ""); (H5O_DTYPE->debug)(f, mesg->dt, stream, indent+3, MAX(0, fwidth-3)); fprintf(stream, "%*s%-*s %lu\n", indent, "", fwidth, "Data space size:", (unsigned long)(mesg->ds_size)); fprintf(stream, "%*sData space...\n", indent, ""); H5S_debug(f, mesg->ds, stream, indent+3, MAX(0, fwidth-3)); FUNC_LEAVE(SUCCEED); }


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