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/*
*
* evread.c -- example program for reading rows in different ways
*
*/
#include <funtoolsP.h>
#define MAXROW 10000
extern char *optarg;
extern int optind;
/* single event (used in array of structs) */
typedef struct evstruct{
short region;
double x, y;
int pi, pha;
double time;
double dx, dy;
} *Ev, EvRec;
/* arrays of columns (used in struct of arrays) */
typedef struct aevstruct{
short region[MAXROW];
double x[MAXROW], y[MAXROW];
int pi[MAXROW], pha[MAXROW];
double time[MAXROW];
double dx[MAXROW], dy[MAXROW];
} *AEv, AEvRec;
/* pointers to arrays of columns (used in struct of arrays) */
typedef struct pevstruct{
short *region;
double *x, *y;
int *pi, *pha;
double *time;
double *dx, *dy;
} *PEv, PEvRec;
#ifdef ANSI_FUNC
int
main (int argc, char **argv)
#else
main(argc, argv)
int argc;
char **argv;
#endif
{
int i;
int c;
int got;
int put;
int args;
int ncol;
int ctype, cn, tcol;
int doev=0;
int doseek=0;
int doualloc=0;
int nrow;
int maxrow;
char tbuf[SZ_LINE];
char *mode="r";
char *iname;
char *oname=NULL;
char *params=NULL;
char *cname;
Fun fun=NULL;
Fun ofun=NULL;
void *buf=NULL;
Ev ev, ebuf=NULL;
AEv aev, abuf=NULL;
PEv pev, pbuf=NULL;
FITSHead header=NULL;
FunCol *cols;
/* process switch arguments */
while ((c = getopt(argc, argv, "aepusw:")) != -1){
switch(c){
case 'a':
doev = 1;
params = "org=soa";
break;
case 'e':
doev = 0;
params = "org=aos";
break;
case 'f':
doev = 3;
params = "org=aos";
break;
case 'p':
doev = 2;
params = "org=soa";
break;
case 's':
doseek = 1;
break;
case 'u':
doualloc = 1;
break;
case 'w':
oname = optarg;
mode = "rw";
break;
}
}
/* check for required arguments */
args = argc - optind;
if( args == 0 )
iname = "test.ev[EVENTS]";
else
iname = argv[optind];
/* open input file */
if( !(fun = FunOpen(iname, "r", NULL)) ){
gerror(stderr, "could not FunOpen %s\n", iname);
exit(1);
}
/* open output file, if necessary */
if( oname ){
if( !(ofun = FunOpen(oname, "w", fun)) ){
gerror(stderr, "could not FunOpen outout %s\n", oname);
exit(1);
}
}
/* set number of rows to read at once */
if( doseek )
maxrow = 1;
else
maxrow = MAXROW;
/* display column information from raw data file */
/* first get fitsy header info */
FunInfoGet(fun, FUN_HEADER, &header, FUN_COLS, &cols, FUN_NCOL, &ncol, 0);
if( !header->table ){
gerror(stderr, "not a table\n");
exit(1);
}
fprintf(stdout, " name\t type\t n\t col\t otype\t scaled\n");
fprintf(stdout, "-------\t-------\t-------\t-------\t-------\t-------\n");
for(i=0; i<ncol; i++){
/* current type info, which might have a changed data type if its scaled */
if( !FunColumnLookup(fun, NULL, i,
&cname, &ctype, NULL, NULL, &cn, NULL) ){
gerror(stderr, "missing column %d\n", i);
exit(1);
}
/* non-negative tcols point to raw columns in FITS table, where we can
determine the original data type and whether scaling params exist */
if( (tcol = cols[i]->tcol) >= 0 ){
fprintf(stdout, "%7s\t%7c\t%7d\t%7d\t%7c\t%7d\n",
cname, ctype, cn,
tcol,
header->table->col[tcol].type,
header->table->col[tcol].scaled);
}
}
fprintf(stdout, "\n");
/* specify columns we want */
switch(doev){
/* array of structs */
case 0:
got = FunColumnSelect(fun, sizeof(EvRec), params,
"x", "D:10:10", mode, FUN_OFFSET(Ev, x),
"y", "D:10:10", mode, FUN_OFFSET(Ev, y),
"pha", "J", mode, FUN_OFFSET(Ev, pha),
"pi", "J", mode, FUN_OFFSET(Ev, pi),
"time", "1D", mode, FUN_OFFSET(Ev, time),
"dx", "D:10:10", mode, FUN_OFFSET(Ev, dx),
"dy", "D:10:10", mode, FUN_OFFSET(Ev, dy),
"$region", "I", mode, FUN_OFFSET(Ev, region),
NULL);
if( doualloc ){
ebuf = calloc(MAXROW, sizeof(EvRec));
buf = ebuf;
}
break;
/* struct of arrays */
case 1:
got = FunColumnSelect(fun, sizeof(AEvRec), params,
"x", "D:10:10", mode, FUN_OFFSET(AEv, x),
"y", "D:10:10", mode, FUN_OFFSET(AEv, y),
"pha", "J", mode, FUN_OFFSET(AEv, pha),
"pi", "J", mode, FUN_OFFSET(AEv, pi),
"time", "1D", mode, FUN_OFFSET(AEv, time),
"dx", "D:10:10", mode, FUN_OFFSET(AEv, dx),
"dy", "D:10:10", mode, FUN_OFFSET(AEv, dy),
"$region", "I", mode, FUN_OFFSET(AEv, region),
NULL);
if( doualloc ){
abuf = calloc(1, sizeof(AEvRec));
buf = abuf;
}
break;
/* struct of pointers */
case 2:
got = FunColumnSelect(fun, sizeof(PEvRec), params,
"x", "@D:10:10", mode, FUN_OFFSET(PEv, x),
"y", "@D:10:10", mode, FUN_OFFSET(PEv, y),
"pha", "@J", mode, FUN_OFFSET(PEv, pha),
"pi", "@J", mode, FUN_OFFSET(PEv, pi),
"time", "@1D", mode, FUN_OFFSET(PEv, time),
"dx", "@D:10:10", mode, FUN_OFFSET(PEv, dx),
"dy", "@D:10:10", mode, FUN_OFFSET(PEv, dy),
"$region", "@I", mode, FUN_OFFSET(PEv, region),
NULL);
if( doualloc ){
pbuf = calloc(1, sizeof(PEvRec));
pbuf->region = calloc(MAXROW, sizeof(short));
pbuf->x = calloc(MAXROW, sizeof(double));
pbuf->y = calloc(MAXROW, sizeof(double));
pbuf->pi = calloc(MAXROW, sizeof(int));
pbuf->pha = calloc(MAXROW, sizeof(int));
pbuf->time = calloc(MAXROW, sizeof(double));
pbuf->dx = calloc(MAXROW, sizeof(double));
pbuf->dy = calloc(MAXROW, sizeof(double));
buf = pbuf;
}
break;
/* array of structs containing pointers */
case 3:
got = FunColumnSelect(fun, sizeof(PEvRec), params,
"x", "@D:10:10", mode, FUN_OFFSET(PEv, x),
"y", "@D:10:10", mode, FUN_OFFSET(PEv, y),
"pha", "@J", mode, FUN_OFFSET(PEv, pha),
"pi", "@J", mode, FUN_OFFSET(PEv, pi),
"time", "@1D", mode, FUN_OFFSET(PEv, time),
"dx", "@D:10:10", mode, FUN_OFFSET(PEv, dx),
"dy", "@D:10:10", mode, FUN_OFFSET(PEv, dy),
"$region", "@I", mode, FUN_OFFSET(PEv, region),
NULL);
if( doualloc ){
pbuf = calloc(1, sizeof(PEvRec));
pbuf->region = calloc(1, sizeof(short));
pbuf->x = calloc(1, sizeof(double));
pbuf->y = calloc(1, sizeof(double));
pbuf->pi = calloc(1, sizeof(int));
pbuf->pha = calloc(1, sizeof(int));
pbuf->time = calloc(1, sizeof(double));
pbuf->dx = calloc(1, sizeof(double));
pbuf->dy = calloc(1, sizeof(double));
buf = pbuf;
}
break;
default:
gerror(stderr, "unknown params value: %d\n", doev);
break;
}
/* get rows */
while( 1 ){
if( doseek ){
fprintf(stdout, "Enter row: ");
fflush(stdout);
fgets(tbuf, SZ_LINE, stdin);
nrow = atoi(tbuf);
if( nrow <=0 ) break;
if( FunTableRowSeek(fun, nrow, NULL) < 0 ){
gerror(stderr, "FunTableRowSeek() failed on row %d\n", nrow);
exit(1);
}
}
buf = (void *)FunTableRowGet(fun, buf, maxrow, NULL, &got);
if( !buf ) break;
/* output if necessary */
if( ofun ){
if( (put=FunTableRowPut(ofun, buf, got, 0, NULL)) != got ){
gerror(stderr, "expected to write %d rows; only wrote %d\n",
got, put);
}
}
/* and display */
switch(doev){
case 0:
for(i=0; i<got; i++){
ev = (Ev)buf+i;
fprintf(stdout, "%12.8f %12.8f %4d %4d %18.8f %8.4f %8.4f %4d\n",
ev->x, ev->y,
ev->pha, ev->pi,
ev->time,
ev->dx, ev->dy,
(int)ev->region);
fflush(stdout);
}
break;
case 1:
aev = (AEv)buf;
for(i=0; i<got; i++){
fprintf(stdout, "%12.8f %12.8f %4d %4d %18.8f %8.4f %8.4f %4d\n",
aev->x[i], aev->y[i],
aev->pha[i], aev->pi[i],
aev->time[i],
aev->dx[i], aev->dy[i],
(int)aev->region[i]);
fflush(stdout);
}
break;
case 2:
pev = (PEv)buf;
for(i=0; i<got; i++){
fprintf(stdout, "%12.8f %12.8f %4d %4d %18.8f %8.4f %8.4f %4d\n",
pev->x[i], pev->y[i],
pev->pha[i], pev->pi[i],
pev->time[i],
pev->dx[i], pev->dy[i],
(int)pev->region[i]);
fflush(stdout);
}
break;
case 3:
for(i=0; i<got; i++){
pev = (PEv)buf+i;
fprintf(stdout, "%12.8f %12.8f %4d %4d %18.8f %8.4f %8.4f %4d\n",
pev->x[0], pev->y[0],
pev->pha[0], pev->pi[0],
pev->time[0],
pev->dx[0], pev->dy[0],
(int)pev->region[0]);
fflush(stdout);
}
break;
default:
gerror(stderr, "unknown params value: %d\n", doev);
break;
}
/* if funtools did allocation, free it now */
if( !doualloc ){
if( buf ) xfree(buf);
buf = NULL;
}
}
/* clean up */
if( doualloc ){
switch(doev){
case 0:
if( ebuf ) xfree(ebuf);
break;
case 1:
if( abuf ) xfree(abuf);
break;
case 2:
if( pbuf->region ) xfree(pbuf->region);
if( pbuf->x ) xfree(pbuf->x);
if( pbuf->y ) xfree(pbuf->y);
if( pbuf->pi ) xfree(pbuf->pi);
if( pbuf->pha ) xfree(pbuf->pha);
if( pbuf->time ) xfree(pbuf->time);
if( pbuf->dx ) xfree(pbuf->dx);
if( pbuf->dy ) xfree(pbuf->dy);
if( pbuf ) xfree(pbuf);
break;
}
}
if( ofun ) FunClose(ofun);
FunClose(fun);
return(0);
}
|
