/* * Copyright (C) 1997 NCSA * All rights reserved. * * Programmer: Robb Matzke * Wednesday, October 8, 1997 * * Purpose: Messages related to data layout. */ #include #include #include #include #include /* PRIVATE PROTOTYPES */ static void *H5O_layout_decode (H5F_t *f, size_t raw_size, const uint8 *p); static herr_t H5O_layout_encode (H5F_t *f, size_t size, uint8 *p, const void *_mesg); static void *H5O_layout_copy (const void *_mesg, void *_dest); static size_t H5O_layout_size (H5F_t *f, const void *_mesg); static herr_t H5O_layout_debug (H5F_t *f, const void *_mesg, FILE *stream, intn indent, intn fwidth); /* This message derives from H5O */ const H5O_class_t H5O_LAYOUT[1] = {{ H5O_LAYOUT_ID, /*message id number */ "layout", /*message name for debugging */ sizeof(H5O_layout_t), /*native message size */ H5O_layout_decode, /*decode message */ H5O_layout_encode, /*encode message */ H5O_layout_copy, /*copy the native value */ H5O_layout_size, /*size of message on disk */ NULL, /*reset method */ H5O_layout_debug, /*debug the message */ }}; /* Interface initialization */ #define PABLO_MASK H5O_layout_mask static hbool_t interface_initialize_g = FALSE; #define INTERFACE_INIT NULL /*------------------------------------------------------------------------- * Function: H5O_layout_decode * * Purpose: Decode an data layout message and return a pointer to a * new one created with malloc(). * * Return: Success: Ptr to new message in native order. * * Failure: NULL * * Programmer: Robb Matzke * Wednesday, October 8, 1997 * * Modifications: * *------------------------------------------------------------------------- */ static void * H5O_layout_decode (H5F_t *f, size_t raw_size, const uint8 *p) { H5O_layout_t *mesg = NULL; intn i; FUNC_ENTER (H5O_layout_decode, NULL); /* check args */ assert (f); assert (p); /* decode */ mesg = H5MM_xcalloc (1, sizeof(H5O_layout_t)); H5F_addr_decode (f, &p, &(mesg->addr)); mesg->ndims = *p++; assert (raw_size == H5O_layout_size (f, mesg)); /* Layout class */ mesg->type = *p++; assert (H5D_CONTIGUOUS==mesg->type || H5D_CHUNKED==mesg->type); /* Reserved bytes */ p += 6; /* Read the size */ for (i=0; indims; i++) { UINT32DECODE (p, mesg->dim[i]); } FUNC_LEAVE (mesg); } /*------------------------------------------------------------------------- * Function: H5O_layout_encode * * Purpose: Encodes a message. * * Return: Success: SUCCEED * * Failure: FAIL * * Programmer: Robb Matzke * Wednesday, October 8, 1997 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_layout_encode (H5F_t *f, size_t raw_size, uint8 *p, const void *_mesg) { const H5O_layout_t *mesg = (const H5O_layout_t *)_mesg; int i; FUNC_ENTER (H5O_layout_encode, FAIL); /* check args */ assert (f); assert (mesg); assert (mesg->ndims>0 && mesg->ndims<=H5O_LAYOUT_NDIMS); assert (raw_size == H5O_layout_size (f, _mesg)); assert (p); /* data or B-tree address */ H5F_addr_encode (f, &p, &(mesg->addr)); /* number of dimensions */ *p++ = mesg->ndims; /* layout class */ *p++ = mesg->type; /* reserved bytes should be zero */ for (i=0; i<6; i++) *p++ = 0; /* dimension size */ for (i=0; indims; i++) { UINT32ENCODE (p, mesg->dim[i]); } FUNC_LEAVE (SUCCEED); } /*------------------------------------------------------------------------- * Function: H5O_layout_copy * * Purpose: Copies a message from _MESG to _DEST, allocating _DEST if * necessary. * * Return: Success: Ptr to _DEST * * Failure: NULL * * Programmer: Robb Matzke * Wednesday, October 8, 1997 * * Modifications: * *------------------------------------------------------------------------- */ static void * H5O_layout_copy (const void *_mesg, void *_dest) { const H5O_layout_t *mesg = (const H5O_layout_t *)_mesg; H5O_layout_t *dest = (H5O_layout_t *)_dest; FUNC_ENTER (H5O_layout_copy, NULL); /* check args */ assert (mesg); if (!dest) dest = H5MM_xcalloc (1, sizeof(H5O_layout_t)); /* copy */ *dest = *mesg; FUNC_LEAVE ((void*)dest); } /*------------------------------------------------------------------------- * Function: H5O_layout_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 message alignment. * * Return: Success: Message data size in bytes * * Failure: FAIL * * Programmer: Robb Matzke * Wednesday, October 8, 1997 * * Modifications: * *------------------------------------------------------------------------- */ static size_t H5O_layout_size (H5F_t *f, const void *_mesg) { const H5O_layout_t *mesg = (const H5O_layout_t *)_mesg; size_t ret_value = FAIL; FUNC_ENTER (H5O_layout_size, FAIL); /* check args */ assert (f); assert (mesg); assert (mesg->ndims>0 && mesg->ndims<=H5O_LAYOUT_NDIMS); ret_value = H5F_SIZEOF_ADDR (f) + /* B-tree address */ 1 + /* max dimension index */ 1 + /* layout class number */ 6 + /* reserved bytes */ mesg->ndims * 4; /* alignment */ FUNC_LEAVE (ret_value); } /*------------------------------------------------------------------------- * Function: H5O_layout_debug * * Purpose: Prints debugging info for a message. * * Return: Success: SUCCEED * * Failure: FAIL * * Programmer: Robb Matzke * Wednesday, October 8, 1997 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5O_layout_debug (H5F_t *f, const void *_mesg, FILE *stream, intn indent, intn fwidth) { const H5O_layout_t *mesg = (const H5O_layout_t *)_mesg; intn i; FUNC_ENTER (H5O_layout_debug, FAIL); /* check args */ assert (f); assert (mesg); assert (stream); assert (indent>=0); assert (fwidth>=0); fprintf (stream, "%*s%-*s ", indent, "", fwidth, H5D_CHUNKED==mesg->type?"B-tree address:":"Data address:"); H5F_addr_print (stream, &(mesg->addr)); fprintf (stream, "\n"); fprintf (stream, "%*s%-*s %lu\n", indent, "", fwidth, "Number of dimensions:", (unsigned long)(mesg->ndims)); /* Size */ fprintf (stream, "%*s%-*s {", indent, "", fwidth, "Size:"); for (i=0; indims; i++) { fprintf (stream, "%s%lu", i?", ":"", (unsigned long)(mesg->dim[i])); } fprintf (stream, "}\n"); FUNC_LEAVE (SUCCEED); }