src/gromacs/fileio/gmxfio_bin.c

   1 /*
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  37 #include "config.h"
  38
  39 #include <errno.h>
  40 #include <stdio.h>
  41 #include <string.h>
  42 #ifdef HAVE_IO_H
  43 #include <io.h>
  44 #endif
  45
  46 #include "macros.h"
  47 #include "gromacs/utility/smalloc.h"
  48 #include "gromacs/utility/futil.h"
  49 #include "filenm.h"
  50 #include "gmxfio.h"
  51 #include "md5.h"
  52
  53 #include "gmxfio_int.h"
  54
  55 /* This is the part that reads dummy and ascii files.  */
  56
  57
  58 static gmx_bool do_binread(t_fileio *fio, void *item, int nitem, int eio,
  59                            const char *desc, const char *srcfile, int line);
  60 static gmx_bool do_binwrite(t_fileio *fio, const void *item, int nitem, int eio,
  61                             const char *desc, const char *srcfile, int line);
  62
  63
  64 const t_iotype bin_iotype = {do_binread, do_binwrite};
  65
  66
  67 static gmx_bool do_binwrite(t_fileio *fio, const void *item, int nitem, int eio,
  68                             const char *desc, const char *srcfile, int line)
  69 {
  70     size_t size = 0, wsize;
  71     int    ssize;
  72
  73     gmx_fio_check_nitem(eio, nitem, srcfile, line);
  74     switch (eio)
  75     {
  76         case eioREAL:
  77             size = sizeof(real);
  78             break;
  79         case eioFLOAT:
  80             size = sizeof(float);
  81             break;
  82         case eioDOUBLE:
  83             size = sizeof(double);
  84             break;
  85         case eioINT:
  86             size = sizeof(int);
  87             break;
  88         case eioINT64:
  89             size = sizeof(gmx_int64_t);
  90             break;
  91         case eioUCHAR:
  92             size = sizeof(unsigned char);
  93             break;
  94         case eioNUCHAR:
  95             size = sizeof(unsigned char);
  96             break;
  97         case eioUSHORT:
  98             size = sizeof(unsigned short);
  99             break;
 100         case eioRVEC:
 101             size = sizeof(rvec);
 102             break;
 103         case eioNRVEC:
 104             size = sizeof(rvec);
 105             break;
 106         case eioIVEC:
 107             size = sizeof(ivec);
 108             break;
 109         case eioSTRING:
 110             size = ssize = strlen((char *) item) + 1;
 111             do_binwrite(fio, &ssize, 1, eioINT, desc, srcfile, line);
 112             break;
 113         default:
 114             gmx_fio_fe(fio, eio, desc, srcfile, line);
 115     }
 116
 117     wsize = fwrite(item, size, nitem, fio->fp);
 118
 119     if ((wsize != nitem) && fio->bDebug)
 120     {
 121         fprintf(stderr,
 122                 "Error writing %s %s to file %s (source %s, line %d)\n",
 123                 eioNames[eio], desc, fio->fn, srcfile, line);
 124         fprintf(stderr, "written size %u bytes, source size %u bytes\n",
 125                 (unsigned int) wsize, (unsigned int) size);
 126     }
 127     return (wsize == nitem);
 128 }
 129
 130 static gmx_bool do_binread(t_fileio *fio, void *item, int nitem, int eio,
 131                            const char *desc, const char *srcfile, int line)
 132 {
 133     size_t size = 0, rsize;
 134     int    ssize;
 135
 136     gmx_fio_check_nitem(eio, nitem, srcfile, line);
 137     switch (eio)
 138     {
 139         case eioREAL:
 140             if (fio->bDouble)
 141             {
 142                 size = sizeof(double);
 143             }
 144             else
 145             {
 146                 size = sizeof(float);
 147             }
 148             break;
 149         case eioFLOAT:
 150             size = sizeof(float);
 151             break;
 152         case eioDOUBLE:
 153             size = sizeof(double);
 154             break;
 155         case eioINT:
 156             size = sizeof(int);
 157             break;
 158         case eioINT64:
 159             size = sizeof(gmx_int64_t);
 160             break;
 161         case eioUCHAR:
 162             size = sizeof(unsigned char);
 163             break;
 164         case eioNUCHAR:
 165             size = sizeof(unsigned char);
 166             break;
 167         case eioUSHORT:
 168             size = sizeof(unsigned short);
 169             break;
 170         case eioRVEC:
 171         case eioNRVEC:
 172             if (fio->bDouble)
 173             {
 174                 size = sizeof(double) * DIM;
 175             }
 176             else
 177             {
 178                 size = sizeof(float) * DIM;
 179             }
 180             break;
 181         case eioIVEC:
 182             size = sizeof(ivec);
 183             break;
 184         case eioSTRING:
 185             do_binread(fio, &ssize, 1, eioINT, desc, srcfile, line);
 186             size = ssize;
 187             break;
 188         default:
 189             gmx_fio_fe(fio, eio, desc, srcfile, line);
 190     }
 191     if (item)
 192     {
 193         rsize = fread(item, size, nitem, fio->fp);
 194     }
 195     else
 196     {
 197         /* Skip over it if we have a NULL pointer here */
 198         gmx_fseek(fio->fp, (gmx_off_t)(size*nitem), SEEK_CUR);
 199         rsize = nitem;
 200     }
 201     if ((rsize != nitem) && (fio->bDebug))
 202     {
 203         fprintf(stderr,
 204                 "Error reading %s %s from file %s (source %s, line %d)\n",
 205                 eioNames[eio], desc, fio->fn, srcfile, line);
 206     }
 207
 208     return (rsize == nitem);
 209 }