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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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.     *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#include "h5repack.h"
#include "h5test.h"
#include "h5tools_utils.h"

extern char  *progname;
static int has_filter(hid_t dcpl_id, H5Z_filter_t filtnin);
static int has_layout(hid_t dcpl_id,pack_info_t *obj);



/*-------------------------------------------------------------------------
 * Function: h5repack_verify
 *
 * Purpose: verify if the filters and layout specified in the options list are
 *  present on the OUTPUT file
 *
 * Return: 1=present, 0=not present, -1=error
 *
 * Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
 *
 * Date: December 19, 2003
 *
 *-------------------------------------------------------------------------
 */

int h5repack_verify(const char *fname,
                    pack_opt_t *options)
{
    hid_t        fid;           /* file ID */
    hid_t        dset_id = -1;  /* dataset ID */
    hid_t        dcpl_id = -1;  /* dataset creation property list ID */
    hid_t        space_id = -1; /* space ID */
    unsigned int i;
    int j;
    trav_table_t  *travt = NULL;
    int          have = 1;
    
    /* open the file */
    if((fid = H5Fopen(fname, H5F_ACC_RDONLY, H5P_DEFAULT)) < 0 )
        return -1;
    
    for(i = 0; i < options->op_tbl->nelems; i++) 
    {
        char* name = options->op_tbl->objs[i].path;
        pack_info_t *obj = &options->op_tbl->objs[i];
        
       /*-------------------------------------------------------------------------
        * open
        *-------------------------------------------------------------------------
        */
        if((dset_id = H5Dopen2(fid, name, H5P_DEFAULT)) < 0)
            goto error;
        if((space_id = H5Dget_space(dset_id)) < 0)
            goto error;
        if((dcpl_id = H5Dget_create_plist(dset_id)) < 0)
            goto error;
        
       /*-------------------------------------------------------------------------
        * filter check
        *-------------------------------------------------------------------------
        */
        for(j = 0; j < obj->nfilters; j++) 
        {
            if(has_filter(dcpl_id, obj->filter[j].filtn) == 0)
                have = 0;

                        
        }
        
       /*-------------------------------------------------------------------------
        * layout check
        *-------------------------------------------------------------------------
        */
        if((obj->layout != -1) && (has_layout(dcpl_id, obj) == 0))
            have = 0;
        
            /*-------------------------------------------------------------------------
            * close
            *-------------------------------------------------------------------------
        */
        if(H5Pclose(dcpl_id) < 0)
            goto error;
        if (H5Sclose(space_id) < 0)
            goto error;
        if (H5Dclose(dset_id) < 0)
            goto error;
        
    }
    
    
   /*-------------------------------------------------------------------------
    * check for the "all" objects option
    *-------------------------------------------------------------------------
    */
    
    if(options->all_filter == 1 || options->all_layout == 1) 
    {
        
        /* init table */
        trav_table_init(&travt);
        
        /* get the list of objects in the file */
        if(h5trav_gettable(fid, travt) < 0)
            goto error;
        
        for(i = 0; i < travt->nobjs; i++) 
        {
            char *name = travt->objs[i].name;
            
            if(travt->objs[i].type == H5TRAV_TYPE_DATASET) 
            {
                
               /*-------------------------------------------------------------------------
                * open
                *-------------------------------------------------------------------------
                */
                if((dset_id = H5Dopen2(fid, name, H5P_DEFAULT)) < 0)
                    goto error;
                if((space_id = H5Dget_space(dset_id)) < 0)
                    goto error;
                if((dcpl_id = H5Dget_create_plist(dset_id)) < 0)
                    goto error;
                
               /*-------------------------------------------------------------------------
                * filter check
                *-------------------------------------------------------------------------
                */
                if(options->all_filter == 1)
                {
                    int k;
                    
                    for (k = 0; k < options->n_filter_g; k++ )
                    {
                        if (has_filter(dcpl_id, options->filter_g[k].filtn) == 0)
                            have = 0;
                    }
                }
                
               /*-------------------------------------------------------------------------
                * layout check
                *-------------------------------------------------------------------------
                */
                if(options->all_layout == 1) 
                {
                    pack_info_t pack;
                    init_packobject(&pack);
                    pack.layout = options->layout_g;
                    pack.chunk = options->chunk_g;
                    if(has_layout(dcpl_id, &pack) == 0)
                        have = 0;
                }
                
                
               /*-------------------------------------------------------------------------
                * close
                *-------------------------------------------------------------------------
                */
                if (H5Pclose(dcpl_id) < 0)
                    goto error;
                if (H5Sclose(space_id) < 0)
                    goto error;
                if (H5Dclose(dset_id) < 0)
                    goto error;
            } /* if */
            
        } /* i */
        
        /* free table */
        trav_table_free(travt);
    }
    
   /*-------------------------------------------------------------------------
    * close
    *-------------------------------------------------------------------------
    */
    
    if (H5Fclose(fid) < 0)
        return -1;
    
    return have;
    
error:
    H5E_BEGIN_TRY {
        H5Pclose(dcpl_id);
        H5Sclose(space_id);
        H5Dclose(dset_id);
        H5Fclose(fid);
        if (travt)
            trav_table_free(travt);
    } H5E_END_TRY;
    return -1;
}




/*-------------------------------------------------------------------------
 * Function: has_filter
 *
 * Purpose: verify if a filter is present in the property list DCPL_ID
 *
 * Return: 1 has, 0 does not, -1 error
 *
 * Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
 *
 * Date: December 19, 2003
 *
 *-------------------------------------------------------------------------
 */

static int has_filter(hid_t dcpl_id, H5Z_filter_t filtnin)
{
    unsigned     nfilters;       /* number of filters */
    unsigned     filt_flags;     /* filter flags */
    H5Z_filter_t filtn;          /* filter identification number */
    unsigned     cd_values[20];  /* filter client data values */
    size_t       cd_nelmts;      /* filter client number of values */
    char         f_name[256];    /* filter name */
    int          have = 0;       /* flag, filter is present */
    unsigned     i;              /* index */
    
    /* if no information about the input filter is requested return exit */
    if(filtnin == -1)
        return 1;
    
    /* get information about filters */
    if((nfilters = H5Pget_nfilters(dcpl_id)) < 0)
        return -1;
    
    /* if we do not have filters and the requested filter is NONE, return 1 */
    if(!nfilters && filtnin == H5Z_FILTER_NONE)
        return 1;
    
    for(i = 0; i < nfilters; i++) 
    {
        cd_nelmts = NELMTS(cd_values);
        filtn = H5Pget_filter2(dcpl_id, i, &filt_flags, &cd_nelmts,
            cd_values, sizeof(f_name), f_name, NULL);
        
        if(filtnin == filtn)
            have = 1;
    }
    
    return have;
}


/*-------------------------------------------------------------------------
 * Function: has_layout
 *
 * Purpose: verify which layout is present in the property list DCPL_ID
 *
 *  H5D_COMPACT	  	= 0
 *  H5D_CONTIGUOUS	= 1
 *  H5D_CHUNKED		  = 2
 *
 * Return: 1 has, 0 does not, -1 error
 *
 * Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
 *
 * Date: December 30, 2003
 *
 *-------------------------------------------------------------------------
 */

int has_layout(hid_t dcpl_id,
               pack_info_t *obj)
{
    hsize_t      chsize[64];     /* chunk size in elements */
    H5D_layout_t layout;         /* layout */
    int          nfilters;       /* number of filters */
    int          rank;           /* rank */
    int          i;              /* index */
    
    /* if no information about the input layout is requested return exit */
    if (obj==NULL)
        return 1;
    
    /* check if we have filters in the input object */
    if ((nfilters = H5Pget_nfilters(dcpl_id)) < 0)
        return -1;
    
    /* a non chunked layout was requested on a filtered object; avoid the test */
    if (nfilters && obj->layout!=H5D_CHUNKED)
        return 1;
    
    /* get layout */
    if ((layout = H5Pget_layout(dcpl_id)) < 0)
        return -1;
    
    if (obj->layout != layout)
        return 0;
    
    if (layout==H5D_CHUNKED)
    {
        if ((rank = H5Pget_chunk(dcpl_id,NELMTS(chsize),chsize/*out*/)) < 0)
            return -1;
        if (obj->chunk.rank != rank)
            return 0;
        for ( i=0; i<rank; i++)
            if (chsize[i] != obj->chunk.chunk_lengths[i])
                return 0;
    }
    
    return 1;
}





/*-------------------------------------------------------------------------
 * Function: h5repack_cmpdcpl
 *
 * Purpose: compare 2 files for identical property lists of all objects
 *
 * Return: 1=identical, 0=not identical, -1=error
 *
 * Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
 *
 * Date: December 31, 2003
 *
 *-------------------------------------------------------------------------
 */

int h5repack_cmpdcpl(const char *fname1,
                     const char *fname2)
{
    hid_t         fid1=-1;       /* file ID */
    hid_t         fid2=-1;       /* file ID */
    hid_t         dset1=-1;      /* dataset ID */
    hid_t         dset2=-1;      /* dataset ID */
    hid_t         dcpl1=-1;      /* dataset creation property list ID */
    hid_t         dcpl2=-1;      /* dataset creation property list ID */
    trav_table_t  *travt1=NULL;
    trav_table_t  *travt2=NULL;
    int           ret=1;
    unsigned int  i;
    
   /*-------------------------------------------------------------------------
    * open the files 
    *-------------------------------------------------------------------------
    */
    
    /* disable error reporting */
    H5E_BEGIN_TRY 
    {
        
        /* Open the files */
        if ((fid1=H5Fopen(fname1,H5F_ACC_RDONLY,H5P_DEFAULT)) < 0 )
        {
            error_msg(progname, "<%s>: %s\n", fname1, H5FOPENERROR );
            return -1;
        }
        if ((fid2=H5Fopen(fname2,H5F_ACC_RDONLY,H5P_DEFAULT)) < 0 )
        {
            error_msg(progname, "<%s>: %s\n", fname2, H5FOPENERROR );
            H5Fclose(fid1);
            return -1;
        }
        /* enable error reporting */
    } H5E_END_TRY;
    
   /*-------------------------------------------------------------------------
    * get file table list of objects
    *-------------------------------------------------------------------------
    */
    trav_table_init(&travt1);
    trav_table_init(&travt2);
    if(h5trav_gettable(fid1, travt1) < 0)
        goto error;
    if(h5trav_gettable(fid2, travt2) < 0)
        goto error;
    
    
   /*-------------------------------------------------------------------------
    * traverse the suppplied object list
    *-------------------------------------------------------------------------
    */
    
    for(i = 0; i < travt1->nobjs; i++) 
    {
        if(travt1->objs[i].type == H5TRAV_TYPE_DATASET) 
        {
            if((dset1 = H5Dopen2(fid1, travt1->objs[i].name, H5P_DEFAULT)) < 0)
                goto error;
            if((dset2 = H5Dopen2(fid2, travt1->objs[i].name, H5P_DEFAULT)) < 0)
                goto error;
            if((dcpl1 = H5Dget_create_plist(dset1)) < 0)
                goto error;
            if((dcpl2 = H5Dget_create_plist(dset2)) < 0)
                goto error;
            
           /*-------------------------------------------------------------------------
            * compare the property lists
            *-------------------------------------------------------------------------
            */
            if((ret = H5Pequal(dcpl1, dcpl2)) < 0)
                goto error;
            
            if(ret == 0) 
            {
                error_msg(progname, "property lists for <%s> are different\n",travt1->objs[i].name);
                goto error;
            }
            
           /*-------------------------------------------------------------------------
            * close
            *-------------------------------------------------------------------------
            */
            if(H5Pclose(dcpl1) < 0)
                goto error;
            if(H5Pclose(dcpl2) < 0)
                goto error;
            if(H5Dclose(dset1) < 0)
                goto error;
            if(H5Dclose(dset2) < 0)
                goto error;
        } /*if*/
    } /*i*/
    
   /*-------------------------------------------------------------------------
    * free
    *-------------------------------------------------------------------------
    */
    
    trav_table_free(travt1);
    trav_table_free(travt2);
    
   /*-------------------------------------------------------------------------
    * close
    *-------------------------------------------------------------------------
    */
    
    H5Fclose(fid1);
    H5Fclose(fid2);
    return ret;
    
   /*-------------------------------------------------------------------------
    * error
    *-------------------------------------------------------------------------
    */
    
error:
    H5E_BEGIN_TRY 
    {
        H5Pclose(dcpl1);
        H5Pclose(dcpl2);
        H5Dclose(dset1);
        H5Dclose(dset2);
        H5Fclose(fid1);
        H5Fclose(fid2);
        trav_table_free(travt1);
        trav_table_free(travt2);
    } H5E_END_TRY;
    return -1;
    
}