/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Copyright by the Board of Trustees of the University of Illinois. * * All rights reserved. * * * * This file is part of HDF5. The full HDF5 copyright notice, including * * terms governing use, modification, and redistribution, is contained in * * the files COPYING and Copyright.html. COPYING can be found at the root * * of the source code distribution tree; Copyright.html can be found at the * * root level of an installed copy of the electronic HDF5 document set and * * is linked from the top-level documents page. It can also be found at * * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have * * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /* Programmer: Robb Matzke * Wednesday, September 30, 1998 * * Purpose: The fill message indicates a bit pattern to use for * uninitialized data points of a dataset. */ #define H5O_PACKAGE /*suppress error about including H5Opkg */ #include "H5private.h" /* Generic Functions */ #include "H5Eprivate.h" /* Error handling */ #include "H5FLprivate.h" /* Free Lists */ #include "H5Iprivate.h" /* IDs */ #include "H5MMprivate.h" /* Memory management */ #include "H5Opkg.h" /* Object header functions */ #include "H5Pprivate.h" /* Property lists */ #define PABLO_MASK H5O_fill_mask static void *H5O_fill_new_decode(H5F_t *f, hid_t dxpl_id, const uint8_t *p, H5O_shared_t *sh); static herr_t H5O_fill_new_encode(H5F_t *f, uint8_t *p, const void *_mesg); static void *H5O_fill_new_copy(const void *_mesg, void *_dest); static size_t H5O_fill_new_size(H5F_t *f, const void *_mesg); static herr_t H5O_fill_new_reset(void *_mesg); static herr_t H5O_fill_new_free(void *_mesg); static herr_t H5O_fill_new_debug(H5F_t *f, hid_t dxpl_id, const void *_mesg, FILE *stream, int indent, int fwidth); static void *H5O_fill_decode(H5F_t *f, hid_t dxpl_id, const uint8_t *p, H5O_shared_t *sh); static herr_t H5O_fill_encode(H5F_t *f, uint8_t *p, const void *_mesg); static void *H5O_fill_copy(const void *_mesg, void *_dest); static size_t H5O_fill_size(H5F_t *f, const void *_mesg); static herr_t H5O_fill_reset(void *_mesg); static herr_t H5O_fill_free(void *_mesg); static herr_t H5O_fill_debug(H5F_t *f, hid_t dxpl_id, const void *_mesg, FILE *stream, int indent, int fwidth); /* This message derives from H5O, for old fill value before version 1.5 */ const H5O_class_t H5O_FILL[1] = {{ H5O_FILL_ID, /*message id number */ "fill", /*message name for debugging */ sizeof(H5O_fill_t), /*native message size */ H5O_fill_decode, /*decode message */ H5O_fill_encode, /*encode message */ H5O_fill_copy, /*copy the native value */ H5O_fill_size, /*raw message size */ H5O_fill_reset, /*free internal memory */ H5O_fill_free, /* free method */ NULL, /* file delete method */ NULL, /* link method */ NULL, /*get share method */ NULL, /*set share method */ H5O_fill_debug, /*debug the message */ }}; /* This message derives from H5O, for new fill value after version 1.4 */ const H5O_class_t H5O_FILL_NEW[1] = {{ H5O_FILL_NEW_ID, /*message id number */ "fill_new", /*message name for debugging */ sizeof(H5O_fill_new_t), /*native message size */ H5O_fill_new_decode, /*decode message */ H5O_fill_new_encode, /*encode message */ H5O_fill_new_copy, /*copy the native value */ H5O_fill_new_size, /*raw message size */ H5O_fill_new_reset, /*free internal memory */ H5O_fill_new_free, /* free method */ NULL, /* file delete method */ NULL, /* link method */ NULL, /*get share method */ NULL, /*set share method */ H5O_fill_new_debug, /*debug the message */ }}; /* Initial version of the "new" fill value information */ #define H5O_FILL_VERSION 1 /* Revised version of the "new" fill value information */ #define H5O_FILL_VERSION_2 2 /* Interface initialization */ static int interface_initialize_g = 0; #define INTERFACE_INIT NULL /* Declare a free list to manage the H5O_fill_new_t struct */ H5FL_DEFINE(H5O_fill_new_t); /* Declare a free list to manage the H5O_fill_t struct */ H5FL_DEFINE(H5O_fill_t); /*------------------------------------------------------------------------- * Function: H5O_fill_new_decode * * Purpose: Decode a new fill value message. The new fill value * message is fill value plus space allocation time and * fill value writing time and whether fill value is defined. * * Return: Success: Ptr to new message in native struct. * * Failure: NULL * * Programmer: Raymond Lu * Feb 26, 2002 * * Modifications: * *------------------------------------------------------------------------- */ static void * H5O_fill_new_decode(H5F_t UNUSED *f, hid_t UNUSED dxpl_id, const uint8_t *p, H5O_shared_t UNUSED *sh) { H5O_fill_new_t *mesg=NULL; int version; void *ret_value; FUNC_ENTER_NOAPI(H5O_fill_new_decode, NULL); assert(f); assert(p); assert(!sh); if (NULL==(mesg=H5FL_CALLOC(H5O_fill_new_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for fill value message"); /* Version */ version = *p++; if( version != H5O_FILL_VERSION && version !=H5O_FILL_VERSION_2) HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, NULL, "bad version number for fill value message"); /* Space allocation time */ mesg->alloc_time = (H5D_alloc_time_t)*p++; /* Fill value write time */ mesg->fill_time = (H5D_fill_time_t)*p++; /* Whether fill value is defined */ mesg->fill_defined = *p++; /* Check for version of fill value message */ if(version==H5O_FILL_VERSION) { UINT32DECODE(p, mesg->size); if (mesg->size>0) { H5_CHECK_OVERFLOW(mesg->size,ssize_t,size_t); if (NULL==(mesg->buf=H5MM_malloc((size_t)mesg->size))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for fill value"); HDmemcpy(mesg->buf, p, (size_t)mesg->size); } } /* end if */ else { /* Only decode fill value information if one is defined */ if(mesg->fill_defined) { UINT32DECODE(p, mesg->size); if (mesg->size>0) { H5_CHECK_OVERFLOW(mesg->size,ssize_t,size_t); if (NULL==(mesg->buf=H5MM_malloc((size_t)mesg->size))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for fill value"); HDmemcpy(mesg->buf, p, (size_t)mesg->size); } } /* end if */ else mesg->size=(-1); } /* end else */ /* Set return value */ ret_value = (void*)mesg; done: if (!ret_value && mesg) { if(mesg->buf) H5MM_xfree(mesg->buf); H5FL_FREE(H5O_fill_new_t,mesg); } FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5O_fill_decode * * Purpose: Decode a fill value message. * * Return: Success: Ptr to new message in native struct. * * Failure: NULL * * Programmer: Robb Matzke * Wednesday, September 30, 1998 * * Modifications: * *------------------------------------------------------------------------- */ static void * H5O_fill_decode(H5F_t UNUSED *f, hid_t UNUSED dxpl_id, const uint8_t *p, H5O_shared_t UNUSED *sh) { H5O_fill_t *mesg=NULL; void *ret_value; FUNC_ENTER_NOAPI(H5O_fill_decode, NULL); assert(f); assert(p); assert(!sh); if (NULL==(mesg=H5FL_CALLOC(H5O_fill_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for fill value message"); UINT32DECODE(p, mesg->size); if (mesg->size>0) { if (NULL==(mesg->buf=H5MM_malloc(mesg->size))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for fill value"); HDmemcpy(mesg->buf, p, mesg->size); } /* Set return value */ ret_value = (void*)mesg; done: if (!ret_value && mesg) { if(mesg->buf) H5MM_xfree(mesg->buf); H5FL_FREE(H5O_fill_t,mesg); } FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5O_fill_new_encode * * Purpose: Encode a new fill value message. The new fill value * message is fill value plus space allocation time and * fill value writing time and whether fill value is defined. * * Return: Non-negative on success/Negative on failure * * Programmer: Raymond Lu * Feb 26, 2002 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_fill_new_encode(H5F_t UNUSED *f, uint8_t *p, const void *_mesg) { const H5O_fill_new_t *mesg = (const H5O_fill_new_t *)_mesg; herr_t ret_value=SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5O_fill_new_encode, FAIL); assert(f); assert(p); assert(mesg && NULL==mesg->type); /* Version */ *p++ = H5O_FILL_VERSION; /* Space allocation time */ *p++ = mesg->alloc_time; /* Fill value writing time */ *p++ = mesg->fill_time; /* Whether fill value is defined */ *p++ = mesg->fill_defined; /* Does it handle undefined fill value? */ UINT32ENCODE(p, mesg->size); if(mesg->size>0) if(mesg->buf) { H5_CHECK_OVERFLOW(mesg->size,ssize_t,size_t); HDmemcpy(p, mesg->buf, (size_t)mesg->size); } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5O_fill_encode * * Purpose: Encode a fill value message. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Thursday, October 1, 1998 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_fill_encode(H5F_t UNUSED *f, uint8_t *p, const void *_mesg) { const H5O_fill_t *mesg = (const H5O_fill_t *)_mesg; herr_t ret_value=SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5O_fill_encode, FAIL); assert(f); assert(p); assert(mesg && NULL==mesg->type); UINT32ENCODE(p, mesg->size); if(mesg->buf) HDmemcpy(p, mesg->buf, mesg->size); done: FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5O_fill_new_copy * * Purpose: Copies a message from _MESG to _DEST, allocating _DEST if * necessary. The new fill value message is fill value plus * space allocation time and fill value writing time and * whether fill value is defined. * * Return: Success: Ptr to _DEST * * Failure: NULL * * Programmer: Raymond Lu * Feb 26, 2002 * * Modifications: * *------------------------------------------------------------------------- */ static void * H5O_fill_new_copy(const void *_mesg, void *_dest) { const H5O_fill_new_t *mesg = (const H5O_fill_new_t *)_mesg; H5O_fill_new_t *dest = (H5O_fill_new_t *)_dest; void *ret_value; FUNC_ENTER_NOAPI(H5O_fill_new_copy, NULL); assert(mesg); if (!dest && NULL==(dest=H5FL_MALLOC(H5O_fill_new_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for fill message"); /* Copy data type of fill value */ if (mesg->type) { if(NULL==(dest->type=H5T_copy(mesg->type, H5T_COPY_TRANSIENT))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "unable to copy fill value data type"); } /* end if */ else dest->type=NULL; /* Copy fill value and its size */ if (mesg->buf) { H5_CHECK_OVERFLOW(mesg->size,ssize_t,size_t); if (NULL==(dest->buf=H5MM_malloc((size_t)mesg->size))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for fill value"); HDmemcpy(dest->buf, mesg->buf, (size_t)mesg->size); } /* end if */ else dest->buf=NULL; dest->size = mesg->size; /* Copy three fill value attributes */ dest->alloc_time = mesg->alloc_time; dest->fill_time = mesg->fill_time; dest->fill_defined = mesg->fill_defined; /* Set return value */ ret_value = dest; done: if (!ret_value && dest) { if(dest->buf) H5MM_xfree(dest->buf); if (dest->type) H5T_close(dest->type); if (!_dest) H5FL_FREE(H5O_fill_new_t,dest); } FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5O_fill_copy * * Purpose: Copies a message from _MESG to _DEST, allocating _DEST if * necessary. * * Return: Success: Ptr to _DEST * * Failure: NULL * * Programmer: Robb Matzke * Thursday, October 1, 1998 * * Modifications: * *------------------------------------------------------------------------- */ static void * H5O_fill_copy(const void *_mesg, void *_dest) { const H5O_fill_t *mesg = (const H5O_fill_t *)_mesg; H5O_fill_t *dest = (H5O_fill_t *)_dest; void *ret_value; FUNC_ENTER_NOAPI(H5O_fill_copy, NULL); assert(mesg); if (!dest && NULL==(dest=H5FL_CALLOC(H5O_fill_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for fill message"); if (mesg->type) { if(NULL==(dest->type=H5T_copy(mesg->type, H5T_COPY_TRANSIENT))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, NULL, "unable to copy fill value data type"); } /* end if */ else dest->type=NULL; if (mesg->buf) { if (NULL==(dest->buf=H5MM_malloc(mesg->size))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for fill value"); HDmemcpy(dest->buf, mesg->buf, mesg->size); } /* end if */ else dest->buf=NULL; dest->size = mesg->size; /* Set return value */ ret_value = dest; done: if (!ret_value && dest) { if(dest->buf) H5MM_xfree(dest->buf); if (dest->type) H5T_close(dest->type); if (!_dest) H5FL_FREE(H5O_fill_t,dest); } FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5O_fill_new_size * * Purpose: Returns the size of the raw message in bytes not counting the * message type or size fields, but only the data fields. This * function doesn't take into account alignment. The new fill * value message is fill value plus space allocation time and * fill value writing time and whether fill value is defined. * * Return: Success: Message data size in bytes w/o alignment. * * Failure: 0 * * Programmer: Robb Matzke * Thursday, October 1, 1998 * * Modifications: * *------------------------------------------------------------------------- */ static size_t H5O_fill_new_size(H5F_t UNUSED *f, const void *_mesg) { const H5O_fill_new_t *mesg = (const H5O_fill_new_t *)_mesg; size_t ret_value; FUNC_ENTER_NOAPI(H5O_fill_new_size, 0); assert(f); assert(mesg); ret_value = 1 + /* Version number */ 1 + /* Space allocation time */ 1 + /* Fill value write time */ 1 + /* Fill value defined */ 4 + /* Fill value size */ (mesg->size>0 ? mesg->size : 0); /* Size of fill value */ done: FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5O_fill_size * * Purpose: Returns the size of the raw message in bytes not counting the * message type or size fields, but only the data fields. This * function doesn't take into account alignment. * * Return: Success: Message data size in bytes w/o alignment. * * Failure: 0 * * Programmer: Robb Matzke * Thursday, October 1, 1998 * * Modifications: * *------------------------------------------------------------------------- */ static size_t H5O_fill_size(H5F_t UNUSED *f, const void *_mesg) { const H5O_fill_t *mesg = (const H5O_fill_t *)_mesg; size_t ret_value; /* Return value */ FUNC_ENTER_NOAPI(H5O_fill_size, 0); assert(f); assert(mesg); /* Set return value */ ret_value=4+mesg->size; done: FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5O_fill_new_reset * * Purpose: Resets a new message to an initial state. The new fill value * message is fill value plus space allocation time and * fill value writing time and whether fill value is defined. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Thursday, October 1, 1998 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_fill_new_reset(void *_mesg) { H5O_fill_new_t *mesg = (H5O_fill_new_t *)_mesg; herr_t ret_value=SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5O_fill_new_reset, FAIL); assert(mesg); if(mesg->buf) mesg->buf = H5MM_xfree(mesg->buf); mesg->size = -1; if (mesg->type) { H5T_close(mesg->type); mesg->type = NULL; } mesg->alloc_time = (H5D_alloc_time_t)0; mesg->fill_time = (H5D_fill_time_t)0; mesg->fill_defined = FALSE; done: FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5O_fill_reset * * Purpose: Resets a message to an initial state * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Thursday, October 1, 1998 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_fill_reset(void *_mesg) { H5O_fill_t *mesg = (H5O_fill_t *)_mesg; herr_t ret_value=SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5O_fill_reset, FAIL); assert(mesg); if(mesg->buf) mesg->buf = H5MM_xfree(mesg->buf); mesg->size = 0; if (mesg->type) { H5T_close(mesg->type); mesg->type = NULL; } done: FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5O_fill_new_free * * Purpose: Free's the message * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Thursday, December 5, 2002 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_fill_new_free (void *mesg) { herr_t ret_value=SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5O_fill_new_free, FAIL); assert (mesg); H5FL_FREE(H5O_fill_new_t,mesg); done: FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5O_fill_free * * Purpose: Free's the message * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Thursday, December 5, 2002 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_fill_free (void *mesg) { herr_t ret_value=SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5O_fill_free, FAIL); assert (mesg); H5FL_FREE(H5O_fill_t,mesg); done: FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5O_fill_new_debug * * Purpose: Prints debugging info for the message. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Thursday, October 1, 1998 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_fill_new_debug(H5F_t UNUSED *f, hid_t UNUSED dxpl_id, const void *_mesg, FILE *stream, int indent, int fwidth) { const H5O_fill_new_t *mesg = (const H5O_fill_new_t *)_mesg; H5D_fill_value_t fill_status; /* Whether the fill value is defined */ herr_t ret_value=SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5O_fill_new_debug, FAIL); assert(f); assert(mesg); assert(stream); assert(indent>=0); assert(fwidth>=0); HDfprintf(stream, "%*s%-*s %u\n", indent, "", fwidth, "Version:", (unsigned)H5O_FILL_VERSION); fprintf(stream, "%*s%-*s ", indent, "", fwidth, "Space Allocation Time:"); switch(mesg->alloc_time) { case H5D_ALLOC_TIME_EARLY: fprintf(stream,"Early\n"); break; case H5D_ALLOC_TIME_LATE: fprintf(stream,"Late\n"); break; case H5D_ALLOC_TIME_INCR: fprintf(stream,"Incremental\n"); break; default: fprintf(stream,"Unknown!\n"); break; } /* end switch */ fprintf(stream, "%*s%-*s ", indent, "", fwidth, "Fill Time:"); switch(mesg->fill_time) { case H5D_FILL_TIME_ALLOC: fprintf(stream,"On Allocation\n"); break; case H5D_FILL_TIME_NEVER: fprintf(stream,"Never\n"); break; case H5D_FILL_TIME_IFSET: fprintf(stream,"If Set\n"); break; default: fprintf(stream,"Unknown!\n"); break; } /* end switch */ fprintf(stream, "%*s%-*s ", indent, "", fwidth, "Fill Value Defined:"); H5P_is_fill_value_defined((const H5O_fill_t *)mesg, &fill_status); switch(fill_status) { case H5D_FILL_VALUE_UNDEFINED: fprintf(stream,"Undefined\n"); break; case H5D_FILL_VALUE_DEFAULT: fprintf(stream,"Default\n"); break; case H5D_FILL_VALUE_USER_DEFINED: fprintf(stream,"User Defined\n"); break; default: fprintf(stream,"Unknown!\n"); break; } /* end switch */ HDfprintf(stream, "%*s%-*s %Zu\n", indent, "", fwidth, "Size:", mesg->size); fprintf(stream, "%*s%-*s ", indent, "", fwidth, "Data type:"); if (mesg->type) { H5T_debug(mesg->type, stream); fprintf(stream, "\n"); } else { fprintf(stream, "\n"); } done: FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5O_fill_debug * * Purpose: Prints debugging info for the message. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Thursday, October 1, 1998 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_fill_debug(H5F_t UNUSED *f, hid_t UNUSED dxpl_id, const void *_mesg, FILE *stream, int indent, int fwidth) { const H5O_fill_t *mesg = (const H5O_fill_t *)_mesg; herr_t ret_value=SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5O_fill_debug, FAIL); assert(f); assert(mesg); assert(stream); assert(indent>=0); assert(fwidth>=0); HDfprintf(stream, "%*s%-*s %Zu\n", indent, "", fwidth, "Bytes:", mesg->size); fprintf(stream, "%*s%-*s ", indent, "", fwidth, "Data type:"); if (mesg->type) { H5T_debug(mesg->type, stream); fprintf(stream, "\n"); } else { fprintf(stream, "\n"); } done: FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5O_fill_convert * * Purpose: Convert a fill value from whatever data type it currently has * to the specified dataset type. The `type' field of the fill * value struct will be set to NULL to indicate that it has the * same type as the dataset. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Thursday, October 1, 1998 * * Modifications: * *------------------------------------------------------------------------- */ herr_t H5O_fill_convert(void *_fill, H5T_t *dset_type, hid_t dxpl_id) { H5O_fill_new_t *fill = _fill; H5T_path_t *tpath=NULL; /*type conversion info */ void *buf=NULL, *bkg=NULL; /*conversion buffers */ hid_t src_id=-1, dst_id=-1; /*data type identifiers */ herr_t ret_value=SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5O_fill_convert, FAIL); assert(fill); assert(dset_type); /* No-op cases */ if (!fill->buf || !fill->type || 0==H5T_cmp(fill->type, dset_type)) { if (fill->type) H5T_close(fill->type); fill->type = NULL; HGOTO_DONE(SUCCEED); } /* * Can we convert between source and destination data types? */ if (NULL==(tpath=H5T_path_find(fill->type, dset_type, NULL, NULL, dxpl_id))) { HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to convert between src and dst data types"); } /* Don't bother doing anything if there will be no actual conversion */ if (!H5T_path_noop(tpath)) { if ((src_id = H5I_register(H5I_DATATYPE, H5T_copy(fill->type, H5T_COPY_TRANSIENT)))<0 || (dst_id = H5I_register(H5I_DATATYPE, H5T_copy(dset_type, H5T_COPY_TRANSIENT)))<0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "unable to copy/register data type"); /* * Data type conversions are always done in place, so we need a buffer * that is large enough for both source and destination. */ if (H5T_get_size(fill->type)>=H5T_get_size(dset_type)) { buf = fill->buf; } else { if (NULL==(buf=H5MM_malloc(H5T_get_size(dset_type)))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for type conversion"); HDmemcpy(buf, fill->buf, H5T_get_size(fill->type)); } if (H5T_path_bkg(tpath) && NULL==(bkg=H5MM_malloc(H5T_get_size(dset_type)))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for type conversion"); /* Do the conversion */ if (H5T_convert(tpath, src_id, dst_id, (hsize_t)1, 0, 0, buf, bkg, dxpl_id)<0) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTINIT, FAIL, "data type conversion failed"); /* Update the fill message */ if (buf!=fill->buf) { H5MM_xfree(fill->buf); fill->buf = buf; } H5T_close(fill->type); fill->type = NULL; H5_ASSIGN_OVERFLOW(fill->size,H5T_get_size(dset_type),size_t,ssize_t); } /* end if */ done: if (src_id>=0) H5I_dec_ref(src_id); if (dst_id>=0) H5I_dec_ref(dst_id); if (buf!=fill->buf) H5MM_xfree(buf); if (bkg) H5MM_xfree(bkg); FUNC_LEAVE_NOAPI(ret_value); }