bool Load(uchar *pbBase, uint wSize)
{
while (wSize > 0)
{
uint wFree = wLEAF_BYTES - wByteIn; // размер непрочитанной части буфера
if (wSize > wFree) // блок данных больше размера непрочитанной части буфера
{ // читаем данные из буфера
memcpy(pbBase, mpbPageIn + wByteIn, wFree);
if (OpenIn(wPageIn + 1) == 0) return false; // читаем в буфер следующую страницу
pbBase += wFree; // переходим на следующую позицию источника данных
wSize -= wFree; // уменьшаем размер блока данных
}
else
{ // заносим все данные из буфера
memcpy(pbBase, mpbPageIn + wByteIn, wSize);
wByteIn += wSize; // увеличиваем счётчик заполнения буфера
return true;
}
}
return true;
}
static uint OpenRecord2(uint wPage, ulong cdwRecord)
{
uint i = (cdwRecord % wRECORDS2);
OpenIn(wPage + i / bRECORD_BLOCK);
memcpy(mpbPageOut, mpbPageIn, wLEAF_BYTES);
memset(&reCurr, 0, sizeof(reCurr));
return i;
}
Boolean FileReader::Open(const char* Fname_, int Mode_)
{
if (SharedBuffer())
{
if ((Mode_ & ios::out) || (Mode_ & ios::app))
return OpenOut(Fname_, Mode_);
else if (Mode_ & ios::in)
return OpenIn(Fname_, Mode_);
}
else
{
Boolean OpenOK_ = TRUE;
if ((Mode_ & ios::out) || (Mode_ & ios::app))
OpenOK_ = OpenOut(Fname_, Mode_);
if (Mode_ & ios::in)
OpenOK_ = OpenOK_ && OpenIn(Fname_, Mode_);
return OpenOK_;
}
return FALSE;
}
main(int argc,
char **argv)
{
extern int optind; /* for use of getopt() */
extern char *optarg; /* for use of getopt() */
int ch; /* command-line option letter */
static char *ProgName = "esig2fea"; /* name of this program */
static char *Version = SCCS_VERSION; /* program SCCS version */
static char *Date = SCCS_DATE; /* program SCCS date */
char **field_names = NULL;
int num_fields = 0;
int alloc_fields = 0;
int rflag = NO; /* -r option specified? */
char *rrange; /* arguments of -r option */
long start_rec; /* starting record number */
long end_rec; /* ending record number */
long num_recs; /* number of records to read
(0 means all up to end of file) */
long num_read; /* number of records actually read */
char *iname; /* input file name */
FILE *ifile; /* input stream */
FieldList list; /* input field list */
int inord; /* input: field order or type order? */
FieldSpec **ifields; /* input fields in field or type order */
char *subtype = NULL; /* FEA subtype name */
int subtype_code = NONE; /* numeric subtype code */
FieldSpec *fld; /* spec of various special fields */
char *oname; /* output file name */
FILE *ofile; /* output stream */
struct header *ohd; /* output file header */
struct fea_data *orec; /* output record */
int outord = TYPE_ORDER;
char *version; /* version from input preamble */
int arch; /* architecture from input preamble */
long pre_size; /* preamble size */
long hdr_size; /* header size (bytes) from preamble */
long rec_size; /* record size from preamble */
double rec_freq;
double start_time_offset;
double *data;
long len, i;
struct header *source; /* embedded source-file header */
while ((ch = getopt(argc, argv, "f:r:x:FT:")) != EOF)
switch (ch)
{
case 'f':
if (num_fields >= alloc_fields)
{
size_t size;
alloc_fields = num_fields + 1 + num_fields/2;
size = (alloc_fields + 1) * sizeof(char *);
field_names = (char **)
((field_names == NULL)
? malloc(size)
: realloc(field_names, size));
}
field_names[num_fields++] = optarg;
field_names[num_fields] = NULL;
break;
case 'r':
rflag = YES;
rrange = optarg;
break;
case 'x':
debug_level = atoi(optarg);
break;
case 'F':
outord = FIELD_ORDER;
break;
case 'T':
subtype = optarg;
break;
default:
SYNTAX;
break;
}
if (argc - optind > 2)
{
fprintf(stderr,
"%s: too many file names specified.\n", ProgName);
SYNTAX;
}
if (argc - optind < 2)
{
fprintf(stderr,
"%s: too few file names specified.\n", ProgName);
SYNTAX;
}
DebugMsgLevel = debug_level;
DebugMsgFunc = DebugPrint;
iname = argv[optind++];
list = OpenIn(iname, &version,
&arch, &pre_size, &hdr_size, &rec_size, &ifile);
REQUIRE(list != NULL, "read header failed");
if (ifile == stdin)
iname = "<stdin>";
oname = argv[optind++];
start_rec = 0;
end_rec = LONG_MAX;
num_recs = 0; /* 0 means continue to end of file */
if (rflag)
{
lrange_switch(rrange, &start_rec, &end_rec, 0);
if (end_rec != LONG_MAX)
num_recs = end_rec - start_rec + 1;
}
REQUIRE(start_rec >= 0, "can't start before beginning of file");
REQUIRE(end_rec >= start_rec, "empty range of records specified");
if (debug_level)
fprintf(stderr,
"start_rec: %ld. end_rec: %ld. num_recs: %ld.\n",
start_rec, end_rec, num_recs);
REQUIRE(GetFieldOrdering(list, &inord),
"cant get field ordering of input");
switch (inord)
{
case TYPE_ORDER:
if (debug_level)
fprintf(stderr, "making type-ordered field array.\n");
ifields = TypeOrder(list);
break;
case FIELD_ORDER:
if (debug_level)
fprintf(stderr, "making field-ordered field array.\n");
ifields = FieldOrder(list);
break;
default:
REQUIRE(0, "input order neither TYPE_ORDER nor FIELD_ORDER");
break;
}
ohd = FieldList_to_fea(list, &orec, field_names, FALSE);
REQUIRE(ohd != NULL,
"failure converting input field list to header & record struct");
if (subtype != NULL)
{
subtype_code = lin_search(fea_file_type, subtype);
if (subtype_code == -1)
fprintf(stderr, "%s: unknown FEA file subtype \"%s\" ignored.\n",
ProgName, subtype);
else
ohd->hd.fea->fea_type = subtype_code;
}
if (outord == FIELD_ORDER)
ohd->hd.fea->field_order = YES;
fld = FindField(list, "recordFreq");
if (fld != NULL && fld->occurrence == GLOBAL && fld->data != NULL)
{
(void) type_convert(1L, (char *) fld->data, ElibTypeToEsps(fld->type),
(char *) &rec_freq, FDOUBLE, (void (*)()) NULL);
*add_genhd_d("record_freq", NULL, 1, ohd) = rec_freq;
}
else
rec_freq = 1.0;
fld = FindField(list, "startTime");
if (fld != NULL
&& fld->occurrence == GLOBAL && fld->data != NULL && rec_freq != 0)
{
start_time_offset = start_rec / rec_freq;
len = FieldLength(fld);
data = (double *) type_convert(len, (char *) fld->data,
ElibTypeToEsps(fld->type),
(char *) NULL, FDOUBLE,
(void (*)()) NULL);
if (start_time_offset != 0)
{
for (i = 0; i < len; i++)
data[i] += start_time_offset;
}
(void) add_genhd_d("start_time", data, len, ohd);
}
(void) strcpy(ohd->common.prog, ProgName);
(void) strcpy(ohd->common.vers, Version);
(void) strcpy(ohd->common.progdate, Date);
source = FieldList_to_fea(list, NULL, NULL, TRUE);
add_source_file(ohd, savestring(iname), source);
add_comment(ohd, get_cmd_line(argc, argv));
oname = eopen(ProgName,
oname, "w", NONE, NONE, NULL, &ofile);
write_header(ohd, ofile);
num_read = SkipRecs(ifile, start_rec,
RecordSize(list, arch), ifields, arch);
if (num_read != start_rec)
{
fprintf(stderr,
"%s: couldn't reach starting record; only %ld skipped.\n",
ProgName, num_read);
exit(0);
}
for ( ;
num_read <= end_rec && ReadRecord(ifields, arch, ifile);
num_read++)
{
put_fea_rec(orec, ohd, ofile);
}
if (num_read <= end_rec && num_recs != 0)
fprintf(stderr, "esig2fea: only %ld records read.\n",
num_read - start_rec);
exit(0);
/*NOTREACHED*/
}
bool LoadBuff(uint wPage, void *pbBuff, uint wSize)
{
OpenIn(wPage);
return Load(pbBuff, wSize);
}