#include <stdio.h>
#include <wfdb/wfdb.h>
main()
{
char answer[32], record[8], directory[32];
int i, nsig = 0;
WFDB_Time nsamp, t;
double freq = 0.;
char **filename, **description, **units;
WFDB_Sample *v;
WFDB_Siginfo *s;
do {
printf("Choose a record name [up to 6 characters]: ");
fgets(record, 8, stdin); record[strlen(record)-1] = '\0';
} while (newheader(record) < 0);
do {
printf("Number of signals to be recorded [>0]: ");
fgets(answer, 32, stdin); sscanf(answer, "%d", &nsig);
} while (nsig < 1);
s = (WFDB_Siginfo *)malloc(nsig * sizeof(WFDB_Siginfo));
v = (WFDB_Sample *)malloc(nsig * sizeof(WFDB_Sample));
filename = (char **)malloc(nsig * sizeof(char *));
description = (char **)malloc(nsig * sizeof(char *));
units = (char **)malloc(nsig * sizeof(char *));
if (s == NULL || v == NULL || filename == NULL ||
description == NULL || units == NULL) {
fprintf(stderr, "insufficient memory\n");
exit(1);
}
for (i = 0; i < nsig; i++) {
if ((filename[i] = (char *)malloc(32)) == NULL ||
(description[i] = (char *)malloc(32)) == NULL ||
(units[i] = (char *)malloc(32)) == NULL) {
fprintf(stderr, "insufficient memory\n");
exit(1);
}
}
do {
printf("Sampling frequency [Hz per signal, > 0]: ");
fgets(answer, 32, stdin); sscanf(answer, "%lf", &freq);
} while (setsampfreq(freq) < 0);
do {
printf("Length of record (H:M:S): ");
fgets(answer, 32, stdin);
} while ((nsamp = strtim(answer)) < 1L);
printf("Directory for signal files [up to 30 characters]: ");
fgets(directory, 32, stdin);
directory[strlen(directory)-1] = '\0';
printf("Save signals in difference format? [y/n]: ");
fgets(answer, 32, stdin);
s[0].fmt = (answer[0] == 'y') ? 8 : 16;
printf("Save all signals in one file? [y/n]: ");
fgets(answer, 32, stdin);
if (answer[0] == 'y') {
sprintf(filename[0], "%s/d.%s", directory, record);
for (i = 0; i < nsig; i++) {
s[i].fname = filename[0];
s[i].group = 0;
}
}
else {
for (i = 0; i < nsig; i++) {
sprintf(filename[i], "%s/d%d.%s", directory,i,record);
s[i].fname = filename[i];
s[i].group = i;
}
}
for (i = 0; i < nsig; i++) {
s[i].fmt = s[0].fmt; s[i].bsize = 0;
printf("Signal %d description [up to 30 characters]: ", i);
fgets(description[i], 32, stdin);
description[i][strlen(description[i])-1] = '\0';
s[i].desc = description[i];
printf("Signal %d units [up to 20 characters]: ", i);
fgets(units[i], 22, stdin);
units[i][strlen(units[i])-1] = '\0';
s[i].units = (*units[i]) ? units[i] : "mV";
do {
printf(" Signal %d gain [adu/%s]: ", i, s[i].units);
fgets(answer, 32, stdin);
sscanf(answer, "%lf", &s[i].gain);
} while (s[i].gain < 0.);
do {
printf(" Signal %d ADC resolution in bits [8-16]: ", i);
fgets(answer, 32, stdin);
sscanf(answer, "%d", &s[i].adcres);
} while (s[i].adcres < 8 || s[i].adcres > 16);
printf(" Signal %d ADC zero level [adu]: ", i);
fgets(answer, 32, stdin);
sscanf(answer, "%d", &s[i].adczero);
}
if (osigfopen(s, nsig) < nsig) exit(1);
printf("To begin sampling, press RETURN; to specify a\n");
printf(" start time other than the current time, enter\n");
printf(" it in H:M:S format before pressing RETURN: ");
fgets(answer, 32, stdin); answer[strlen(answer)-1] = '\0';
setbasetime(answer);
adinit();
for (t = 0; t < nsamp; t++) {
for (i = 0; i < nsig; i++)
v[i] = adget(i);
if (putvec(v) < 0) break;
}
adquit();
(void)newheader(record);
wfdbquit();
exit(0);
}
adinit() { printf("%s\n", timstr(0L)); }
adget(i)
int i;
{
return (i);
}
adquit() { ; }