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Diffstat (limited to 'src/H5Ofsinfo.c')
| -rw-r--r-- | src/H5Ofsinfo.c | 309 |
1 files changed, 309 insertions, 0 deletions
diff --git a/src/H5Ofsinfo.c b/src/H5Ofsinfo.c new file mode 100644 index 0000000..fb0151f --- /dev/null +++ b/src/H5Ofsinfo.c @@ -0,0 +1,309 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by The HDF Group. * + * 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://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have * + * access to either file, you may request a copy from help@hdfgroup.org. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/*------------------------------------------------------------------------- + * + * Created: H5Ofsinfo.c + * Feb 2009 + * Vailin Choi + * + * Purpose: Free space manager info message. + * + *------------------------------------------------------------------------- + */ + +#define H5O_PACKAGE /* suppress error about including H5Opkg */ + +#include "H5private.h" /* Generic Functions */ +#include "H5Eprivate.h" /* Error handling */ +#include "H5FLprivate.h" /* Free lists */ +#include "H5Opkg.h" /* Object headers */ + +/* PRIVATE PROTOTYPES */ +static void *H5O_fsinfo_decode(H5F_t *f, hid_t dxpl_id, H5O_t *open_oh, unsigned mesg_flags, unsigned *ioflags, const uint8_t *p); +static herr_t H5O_fsinfo_encode(H5F_t *f, hbool_t disable_shared, uint8_t *p, const void *_mesg); +static void *H5O_fsinfo_copy(const void *_mesg, void *_dest); +static size_t H5O_fsinfo_size(const H5F_t *f, hbool_t disable_shared, const void *_mesg); +static herr_t H5O_fsinfo_free(void *mesg); +static herr_t H5O_fsinfo_debug(H5F_t *f, hid_t dxpl_id, const void *_mesg, + FILE * stream, int indent, int fwidth); + +/* This message derives from H5O message class */ +const H5O_msg_class_t H5O_MSG_FSINFO[1] = {{ + H5O_FSINFO_ID, /* message id number */ + "fsinfo", /* message name for debugging */ + sizeof(H5O_fsinfo_t), /* native message size */ + 0, /* messages are sharable? */ + H5O_fsinfo_decode, /* decode message */ + H5O_fsinfo_encode, /* encode message */ + H5O_fsinfo_copy, /* copy the native value */ + H5O_fsinfo_size, /* size of free-space manager info message */ + NULL, /* default reset method */ + H5O_fsinfo_free, /* 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_fsinfo_debug /* debug the message */ +}}; + +/* Current version of free-space manager info information */ +#define H5O_FSINFO_VERSION 0 + +/* Declare a free list to manage the H5O_fsinfo_t struct */ +H5FL_DEFINE_STATIC(H5O_fsinfo_t); + + +/*------------------------------------------------------------------------- + * Function: H5O_fsinfo_decode + * + * Purpose: Decode a message and return a pointer to a newly allocated one. + * + * Return: Success: Ptr to new message in native form. + * Failure: NULL + * + * Programmer: Vailin Choi; Feb 2009 + * + *------------------------------------------------------------------------- + */ +static void * +H5O_fsinfo_decode(H5F_t *f, hid_t UNUSED dxpl_id, H5O_t UNUSED *open_oh, + unsigned UNUSED mesg_flags, unsigned UNUSED *ioflags, const uint8_t *p) +{ + H5O_fsinfo_t *fsinfo = NULL; /* free-space manager info */ + H5FD_mem_t type; /* Memory type for iteration */ + void *ret_value; /* Return value */ + + FUNC_ENTER_NOAPI_NOINIT(H5O_fsinfo_decode) + + /* check args */ + HDassert(f); + HDassert(p); + + /* Version of message */ + if(*p++ != H5O_FSINFO_VERSION) + HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, NULL, "bad version number for message") + + /* Allocate space for message */ + if(NULL == (fsinfo = H5FL_CALLOC(H5O_fsinfo_t))) + HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed") + + fsinfo->strategy = *p++; /* file space strategy */ + H5F_DECODE_LENGTH(f, p, fsinfo->threshold); /* free space section size threshold */ + + /* Addresses of free space managers: only exist for H5F_FILE_SPACE_ALL_PERSIST */ + if(fsinfo->strategy == H5F_FILE_SPACE_ALL_PERSIST) { + for(type = H5FD_MEM_SUPER; type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5FD_mem_t, type)) + H5F_addr_decode(f, &p, &(fsinfo->fs_addr[type-1])); + } /* end if */ + else { + for(type = H5FD_MEM_SUPER; type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5FD_mem_t, type)) + fsinfo->fs_addr[type-1] = HADDR_UNDEF; + } /* end else */ + + /* Set return value */ + ret_value = fsinfo; + +done: + if(ret_value == NULL && fsinfo != NULL) + fsinfo = H5FL_FREE(H5O_fsinfo_t, fsinfo); + + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5O_fsinfo_decode() */ + + +/*------------------------------------------------------------------------- + * Function: H5O_fsinfo_encode + * + * Purpose: Encodes a message. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Vailin Choi; Feb 2009 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5O_fsinfo_encode(H5F_t *f, hbool_t UNUSED disable_shared, uint8_t *p, const void *_mesg) +{ + const H5O_fsinfo_t *fsinfo = (const H5O_fsinfo_t *)_mesg; + H5FD_mem_t type; /* Memory type for iteration */ + + FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_fsinfo_encode) + + /* check args */ + HDassert(f); + HDassert(p); + HDassert(fsinfo); + + *p++ = H5O_FSINFO_VERSION; /* message version */ + *p++ = fsinfo->strategy; /* file space strategy */ + H5F_ENCODE_LENGTH(f, p, fsinfo->threshold); /* free-space section size threshold */ + + /* Addresses of free space managers: only exist for H5F_FILE_SPACE_ALL_PERSIST */ + if(fsinfo->strategy == H5F_FILE_SPACE_ALL_PERSIST) { + for(type = H5FD_MEM_SUPER; type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5FD_mem_t, type)) + H5F_addr_encode(f, &p, fsinfo->fs_addr[type-1]); + } /* end if */ + + FUNC_LEAVE_NOAPI(SUCCEED) +} /* end H5O_fsinfo_encode() */ + + +/*------------------------------------------------------------------------- + * Function: H5O_fsinfo_copy + * + * Purpose: Copies a message from _MESG to _DEST, allocating _DEST if + * necessary. + * + * Return: Success: Ptr to _DEST + * Failure: NULL + * + * Programmer: Vailin Choi; Feb 2009 + * + *------------------------------------------------------------------------- + */ +static void * +H5O_fsinfo_copy(const void *_mesg, void *_dest) +{ + const H5O_fsinfo_t *fsinfo = (const H5O_fsinfo_t *)_mesg; + H5O_fsinfo_t *dest = (H5O_fsinfo_t *) _dest; + void *ret_value; /* Return value */ + + FUNC_ENTER_NOAPI_NOINIT(H5O_fsinfo_copy) + + /* check args */ + HDassert(fsinfo); + if(!dest && NULL == (dest = H5FL_CALLOC(H5O_fsinfo_t))) + HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed") + + /* copy */ + *dest = *fsinfo; + + /* Set return value */ + ret_value = dest; + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5O_fsinfo_copy() */ + + +/*------------------------------------------------------------------------- + * Function: H5O_fsinfo_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 without alignment. + * Failure: zero + * + * Programmer: Vailin Choi; Feb 2009 + * + *------------------------------------------------------------------------- + */ +static size_t +H5O_fsinfo_size(const H5F_t *f, hbool_t UNUSED disable_shared, const void *_mesg) +{ + const H5O_fsinfo_t *fsinfo = (const H5O_fsinfo_t *)_mesg; + size_t fs_addr_size = 0; + size_t ret_value; /* Return value */ + + FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_fsinfo_size) + + + /* Addresses of free-space managers exist only for H5F_FILE_SPACE_ALL_PERSIST type */ + if(H5F_FILE_SPACE_ALL_PERSIST == fsinfo->strategy) + fs_addr_size = (H5FD_MEM_NTYPES - 1) * H5F_SIZEOF_ADDR(f); + + ret_value = 2 /* Version & strategy */ + + H5F_SIZEOF_SIZE(f) /* Threshold */ + + fs_addr_size; /* Addresses of free-space managers */ + + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5O_fsinfo_size() */ + + +/*------------------------------------------------------------------------- + * Function: H5O_fsinfo_free + * + * Purpose: Free's the message + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Vailin Choi; Feb 2009 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5O_fsinfo_free(void *mesg) +{ + FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_fsinfo_free) + + HDassert(mesg); + + (void)H5FL_FREE(H5O_fsinfo_t, mesg); + + FUNC_LEAVE_NOAPI(SUCCEED) +} /* end H5O_fsinfo_free() */ + + +/*------------------------------------------------------------------------- + * Function: H5O_fsinfo_debug + * + * Purpose: Prints debugging info for a message. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Vailin Choi; Feb 2009 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5O_fsinfo_debug(H5F_t UNUSED *f, hid_t UNUSED dxpl_id, const void *_mesg, FILE * stream, + int indent, int fwidth) +{ + const H5O_fsinfo_t *fsinfo = (const H5O_fsinfo_t *) _mesg; + H5FD_mem_t type; /* Memory type for iteration */ + + FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5O_fsinfo_debug) + + /* check args */ + HDassert(f); + HDassert(fsinfo); + HDassert(stream); + HDassert(indent >= 0); + HDassert(fwidth >= 0); + + HDfprintf(stream, "%*s%-*s %u\n", indent, "", fwidth, + "File space strategy:", fsinfo->strategy); + + HDfprintf(stream, "%*s%-*s %Hu\n", indent, "", fwidth, + "Free space section threshold:", fsinfo->threshold); + + if(fsinfo->strategy == H5F_FILE_SPACE_ALL_PERSIST) { + for(type = H5FD_MEM_SUPER; type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5FD_mem_t, type)) + HDfprintf(stream, "%*s%-*s %a\n", indent, "", fwidth, + "Free space manager address:", fsinfo->fs_addr[type-1]); + } /* end if */ + + FUNC_LEAVE_NOAPI(SUCCEED) +} /* end H5O_fsinfo_debug() */ + |