diff options
| -rw-r--r-- | MANIFEST | 1 | ||||
| -rw-r--r-- | src/H5Oshmesg.c | 254 |
2 files changed, 255 insertions, 0 deletions
@@ -606,6 +606,7 @@ ./src/H5Osdspace.c ./src/H5Oshared.c ./src/H5Oshared.h +./src/H5Oshmesg.c ./src/H5Ostab.c ./src/H5Otest.c ./src/H5P.c diff --git a/src/H5Oshmesg.c b/src/H5Oshmesg.c new file mode 100644 index 0000000..1a39af2 --- /dev/null +++ b/src/H5Oshmesg.c @@ -0,0 +1,254 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by The HDF Group (THG). * + * 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://www.hdfgroup.org/HDF5/doc/Copyright.html. If you do not have * + * access to either file, you may request a copy from help@hdfgroup.org. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + + +/* Programmer: James Laird <jlaird@hdfgroup.com> + * Monday, January 29, 2007 + * + * Purpose: A message holding "implicitly shared object header message" + * information in the superblock extension. + */ + +#define H5O_PACKAGE /*suppress error about including H5Opkg */ + +#include "H5private.h" /* Generic Functions */ +#include "H5Eprivate.h" /* Error handling */ +#include "H5Opkg.h" /* Object headers */ +#include "H5MMprivate.h" /* Memory management */ +#ifdef JAMES +#include "H5FLprivate.h" /* Free Lists */ +#include "H5Iprivate.h" /* IDs */ +#include "H5Pprivate.h" /* Property lists */ +#endif /* JAMES */ + + +static void *H5O_shmesg_decode(H5F_t *f, hid_t dxpl_id, unsigned mesg_flags, const uint8_t *p); +static herr_t H5O_shmesg_encode(H5F_t *f, hbool_t disable_shared, uint8_t *p, const void *_mesg); +static void *H5O_shmesg_copy(const void *_mesg, void *_dest); +static size_t H5O_shmesg_size(const H5F_t *f, hbool_t disable_shared, const void *_mesg); +static herr_t H5O_shmesg_debug(H5F_t *f, hid_t dxpl_id, const void *_mesg, FILE *stream, + int indent, int fwidth); + +/* This message derives from H5O message class, for old fill value before version 1.5 */ +const H5O_msg_class_t H5O_MSG_SHMESG[1] = {{ + H5O_SHMESG_ID, /*message id number */ + "shared message table", /*message name for debugging */ + sizeof(H5O_shmesg_table_t), /*native message size */ + FALSE, /* messages are sharable? */ + H5O_shmesg_decode, /*decode message */ + H5O_shmesg_encode, /*encode message */ + H5O_shmesg_copy, /*copy the native value */ + H5O_shmesg_size, /*raw message size */ + NULL, /*free internal memory */ + NULL, /* free method */ + NULL, /* file delete method */ + NULL, /* link method */ + NULL, /* set share method */ + NULL, /*can share method */ + NULL, /* pre copy native value to file */ + NULL, /* copy native value to file */ + NULL, /* post copy native value to file */ + NULL, /* get creation index */ + NULL, /* set creation index */ + H5O_shmesg_debug /*debug the message */ +}}; + + +/*------------------------------------------------------------------------- + * Function: H5O_shmesg_decode + * + * Purpose: Decode a shared message table message and return a pointer + * to a newly allocated H5O_shmesg_table_t struct. + * + * Return: Success: Ptr to new message in native struct. + * Failure: NULL + * + * Programmer: James Laird + * Jan 29, 2007 + * + *------------------------------------------------------------------------- + */ +static void * +H5O_shmesg_decode(H5F_t *f, hid_t UNUSED dxpl_id, unsigned UNUSED mesg_flags, + const uint8_t *p) +{ + H5O_shmesg_table_t *mesg = NULL; + void *ret_value = NULL; + + FUNC_ENTER_NOAPI_NOINIT(H5O_shmesg_decode) + + HDassert(f); + HDassert(p); + + if(NULL == (mesg = H5MM_calloc(sizeof(H5O_shmesg_table_t)))) + HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for shared message table message") + + /* Read version, table address, and number of indexes */ + mesg->version = *p++; + H5F_addr_decode(f, &p, &(mesg->addr)); + mesg->nindexes = *p++; + + /* Set return value */ + ret_value = (void*)mesg; + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5O_shmesg_decode() */ + + +/*------------------------------------------------------------------------- + * Function: H5O_shmesg_encode + * + * Purpose: Encode a shared message table message and return a pointer + * to a newly allocated H5O_shmesg_table_t struct. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: James Laird + * Jan 29, 2007 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5O_shmesg_encode(H5F_t *f, hbool_t UNUSED disable_shared, uint8_t *p, const void *_mesg) +{ + const H5O_shmesg_table_t *mesg = (const H5O_shmesg_table_t *)_mesg; + + FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_shmesg_encode) + + HDassert(f); + HDassert(p); + HDassert(mesg); + + /* Read version, table address, and number of indexes */ + *p++ = mesg->version; + H5F_addr_encode(f, &p, mesg->addr); + *p++ = mesg->nindexes; + + FUNC_LEAVE_NOAPI(SUCCEED) +} /* end H5O_shmesg_encode() */ + + +/*------------------------------------------------------------------------- + * Function: H5O_shmesg_copy + * + * Purpose: Copies a message from _MESG to _DEST, allocating _DEST if + * necessary. + * + * Return: Success: Ptr to _DEST + * Failure: NULL + * + * Programmer: James Laird + * Jan 29, 2007 + * + *------------------------------------------------------------------------- + */ +static void * +H5O_shmesg_copy(const void *_mesg, void *_dest) +{ + const H5O_shmesg_table_t *mesg = (const H5O_shmesg_table_t *)_mesg; + H5O_shmesg_table_t *dest = (H5O_shmesg_table_t *)_dest; + void *ret_value = NULL; + + FUNC_ENTER_NOAPI_NOINIT(H5O_shmesg_copy) + + HDassert(mesg); + + if(!dest && NULL == (dest = H5MM_malloc(sizeof(H5O_shmesg_table_t)))) + HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for shared message table message") + + /* All this message requires is a shallow copy */ + *dest = *mesg; + + /* Set return value */ + ret_value = dest; + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5O_shmesg_copy() */ + + +/*------------------------------------------------------------------------- + * Function: H5O_shmesg_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: James Laird + * Jan 29, 2007 + * + *------------------------------------------------------------------------- + */ +static size_t +H5O_shmesg_size(const H5F_t *f, hbool_t UNUSED disable_shared, const void *_mesg) +{ + const H5O_shmesg_table_t *mesg = (const H5O_shmesg_table_t *)_mesg; + size_t ret_value; + + FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_shmesg_size) + + HDassert(f); + HDassert(mesg); + + ret_value = 1 + /* Version number */ + H5F_SIZEOF_ADDR(f) + /* Table address */ + 1; /* Number of indexes */ + + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5O_shmesg_size() */ + + +/*------------------------------------------------------------------------- + * Function: H5O_shmesg_debug + * + * Purpose: Prints debugging info for the message. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: James Laird + * Jan 29, 2007 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5O_shmesg_debug(H5F_t UNUSED *f, hid_t UNUSED dxpl_id, const void *_mesg, FILE *stream, + int indent, int fwidth) +{ + const H5O_shmesg_table_t *mesg = (const H5O_shmesg_table_t *)_mesg; + + FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_shmesg_debug) + + HDassert(f); + HDassert(mesg); + HDassert(stream); + HDassert(indent >= 0); + HDassert(fwidth >= 0); + + HDfprintf(stream, "%*s%-*s %u\n", indent, "", fwidth, + "Version:", mesg->version); + HDfprintf(stream, "%*s%-*s %a (rel)\n", indent, "", fwidth, + "Shared message table address:", mesg->addr); + HDfprintf(stream, "%*s%-*s %u\n", indent, "", fwidth, + "Number of indexes:", mesg->nindexes); + + FUNC_LEAVE_NOAPI(SUCCEED) +} /* end H5O_shmesg_debug() */ + + |