int main(int argc, char** argv) {
cbuf *cb1 = cbuf_alloc();
// make sure the cbuf grows and shrinks appropriately
int capacity = cbuf_capacity(cb1);
check(capacity > 0, "Initial capacity > 0");
check(cbuf_size(cb1) == 0, "Initial size == 0");
for(int i = 0; i < capacity; i++) {
cbuf_update(cb1, 60, 1.291);
}
check(cbuf_size(cb1) == cbuf_capacity(cb1), "Size is allowed to grow to capacity");
cbuf_update(cb1, 60, 1.291);
// inserting one more than what the original structure could contain
int new_capacity = cbuf_capacity(cb1);
check(new_capacity > capacity, "Capacity grows when necessary");
// inserting an update that's > 5 minutes older than all of the data
// in the structure
cbuf_update(cb1, 60 + 6 * 60, 1.291);
check(cbuf_capacity(cb1) < new_capacity, "Capacity shrinks when able");
check(cbuf_size(cb1) == 1, "Aged out records are removed correctly");
cbuf_free(cb1);
return 0;
}
void run_main_b() {
cbuf *cb1 ;
cb1 = cbuf_init() ;
cbuf_update(cb1, 60, 1.291) ;
cbuf_update(cb1, 63, 1.287) ;
cbuf_update(cb1, 63, 1.231) ;
cbuf_update(cb1, 69, 1.229) ;
cbuf_update(cb1, 72, 1.247) ;
cbuf_update(cb1, 361, 1.291) ;
cbuf_update(cb1, 411, 1.291) ;
cbuf_update(cb1, 412, 1.281) ;
cbuf_update(cb1, 413, 1.292) ;
cbuf_update(cb1, 414, 1.284) ;
cbuf_update(cb1, 414, 1.290) ;
cbuf_update(cb1, 511, 1.241) ;
cbuf_update(cb1, 512, 1.251) ;
cbuf_update(cb1, 513, 1.232) ;
cbuf_update(cb1, 514, 1.202) ;
cbuf_update(cb1, 517, 1.119) ;
cbuf_update(cb1, 551, 1.080) ;
cbuf_update(cb1, 552, 1.081) ;
cbuf_update(cb1, 553, 1.079) ;
cbuf_update(cb1, 554, 1.088) ;
cbuf_update(cb1, 561, 1.072) ;
cbuf_update(cb1, 562, 1.113) ;
cbuf_update(cb1, 563, 1.091) ;
cbuf_update(cb1, 564, 1.092) ;
cbuf_update(cb1, 571, 1.089) ;
cbuf_update(cb1, 572, 1.073) ;
cbuf_update(cb1, 573, 1.061) ;
cbuf_update(cb1, 574, 1.111) ;
cbuf_update(cb1, 581, 1.119) ;
cbuf_update(cb1, 582, 1.123) ;
cbuf_update(cb1, 583, 1.151) ;
cbuf_update(cb1, 584, 1.153) ;
cbuf_dump(cb1) ;
double avg ;
avg = cbuf_average(cb1) ;
printf("Average rate = %f\n", avg) ;
quote *q_start, *q_end ;
q_start = cbuf_start(cb1) ;
q_end = cbuf_end(cb1) ;
printf("Start: time = %d, rate = %f\n", q_start->time, q_start->rate) ;
printf("End: time = %d, rate = %f\n", q_end->time, q_end->rate) ;
cbuf_stats(cb1) ;
cbuf_delete(cb1) ;
}
void run_main_a() {
cbuf *cb1 ;
cb1 = cbuf_init() ;
cbuf_update(cb1, 60, 1.291) ;
cbuf_update(cb1, 63, 1.287) ;
cbuf_update(cb1, 63, 1.231) ;
cbuf_update(cb1, 69, 1.229) ;
cbuf_update(cb1, 72, 1.247) ;
cbuf_dump(cb1) ;
cbuf_update(cb1, 361, 1.291) ;
cbuf_dump(cb1) ;
cbuf_update(cb1, 411, 1.291) ;
cbuf_update(cb1, 412, 1.281) ;
cbuf_update(cb1, 413, 1.292) ;
cbuf_update(cb1, 414, 1.284) ;
cbuf_update(cb1, 414, 1.290) ;
cbuf_dump(cb1) ;
cbuf_update(cb1, 511, 1.241) ;
cbuf_update(cb1, 512, 1.251) ;
cbuf_update(cb1, 513, 1.232) ;
cbuf_update(cb1, 514, 1.202) ;
cbuf_update(cb1, 517, 1.119) ;
cbuf_dump(cb1) ;
cbuf_update(cb1, 551, 1.080) ;
cbuf_update(cb1, 552, 1.081) ;
cbuf_update(cb1, 553, 1.079) ;
cbuf_update(cb1, 554, 1.088) ;
cbuf_update(cb1, 561, 1.072) ;
cbuf_update(cb1, 562, 1.113) ;
cbuf_update(cb1, 563, 1.091) ;
cbuf_update(cb1, 564, 1.092) ;
cbuf_update(cb1, 571, 1.089) ;
cbuf_update(cb1, 572, 1.073) ;
cbuf_update(cb1, 573, 1.061) ;
cbuf_update(cb1, 574, 1.111) ;
cbuf_update(cb1, 581, 1.119) ;
cbuf_update(cb1, 582, 1.123) ;
cbuf_update(cb1, 583, 1.151) ;
cbuf_update(cb1, 584, 1.153) ;
cbuf_dump(cb1) ;
cbuf_update(cb1, 750, 1.200) ;
cbuf_dump(cb1) ;
cbuf_update(cb1, 818, 1.210) ;
cbuf_dump(cb1) ;
cbuf_update(cb1, 868, 1.230) ;
cbuf_dump(cb1) ;
cbuf_update(cb1, 878, 1.230) ;
cbuf_dump(cb1) ;
cbuf_update(cb1, 900, 1.240) ;
cbuf_dump(cb1) ;
cbuf_update(cb1, 2000, 1.240) ;
cbuf_dump(cb1) ;
}
void run_main_c() {
cbuf *eur_usd, *eur_jpy, *usd_jpy ;
FILE *ifile ;
char fname[33], pair[10] ;
unsigned int hour, min, isec, time ;
double sec, rate ;
int r ;
eur_usd = cbuf_init() ;
eur_jpy = cbuf_init() ;
usd_jpy = cbuf_init() ;
// Ask user for filename
printf("File name (32 chars max): ") ;
scanf("%32s", fname) ;
// Try to open file
ifile = fopen (fname, "r") ;
if (ifile == NULL) {
fprintf(stderr, "Could not open file: %s\n", fname) ;
exit(1) ;
}
// keep reading file until no more ticks
//
while(1) {
r = fscanf(ifile, "%7s %d:%d:%lf %lf", pair, &hour, &min, &sec, &rate) ;
isec = sec ;
// fprintf(stderr, "matched %d items\n", r) ;
// fprintf(stderr, "%s, %02d:%02d:%02d %f\n", pair, hour, min, isec, rate) ;
time = isec + 60 * min + 3600 * hour ;
if (r <= 0) break ; // EOF?
if (strcmp(pair, "EUR-USD") == 0) {
cbuf_update(eur_usd, time, rate) ;
} else if (strcmp(pair, "EUR-JPY") == 0) {
cbuf_update(eur_jpy, time, rate) ;
} else if (strcmp(pair, "USD-JPY") == 0) {
cbuf_update(usd_jpy, time, rate) ;
} else {
fprintf(stderr, "Not a recognized currency pair!\n") ;
}
}
printf("\n\n*** Data for EUR-USD ***\n") ;
print_data(eur_usd) ;
cbuf_stats(eur_usd) ;
printf("\n\n*** Data for EUR-JPY ***\n") ;
print_data(eur_jpy) ;
cbuf_stats(eur_jpy) ;
printf("\n\n*** Data for USD-JPY ***\n") ;
print_data(usd_jpy) ;
cbuf_stats(usd_jpy) ;
// Be nice, clean up
cbuf_delete(eur_usd) ;
cbuf_delete(eur_jpy) ;
cbuf_delete(usd_jpy) ;
fclose(ifile) ;
}
int main(int argc, char** argv) {
cbuf *eur_usd, *eur_jpy, *usd_jpy;
FILE *ifile;
char* fname;
char pair[10];
unsigned int hour, min, isec, time;
double sec, rate;
int r;
eur_usd = cbuf_alloc();
eur_jpy = cbuf_alloc();
usd_jpy = cbuf_alloc();
if(argc != 2) {
fprintf(stderr, "usage: %s filename\n", argv[0]);
exit(1);
}
fname = argv[1];
// Try to open file
ifile = fopen (fname, "r");
if (ifile == NULL) {
fprintf(stderr, "Could not open file: %s\n", fname);
exit(1);
}
// keep reading file until no more ticks
//
while(1) {
r = fscanf(ifile, "%7s %d:%d:%lf %lf", pair, &hour, &min, &sec, &rate);
isec = sec;
// fprintf(stderr, "matched %d items\n", r);
// fprintf(stderr, "%s, %02d:%02d:%02d %f\n", pair, hour, min, isec, rate);
time = isec + 60 * min + 3600 * hour;
if (r <= 0) break; // EOF?
if (strcmp(pair, "EUR-USD") == 0) {
cbuf_update(eur_usd, time, rate);
} else if (strcmp(pair, "EUR-JPY") == 0) {
cbuf_update(eur_jpy, time, rate);
} else if (strcmp(pair, "USD-JPY") == 0) {
cbuf_update(usd_jpy, time, rate);
} else {
fprintf(stderr, "Not a recognized currency pair!\n");
}
}
printf("\n\n*** Data for EUR-USD ***\n");
print_data(eur_usd);
printf("\n\n*** Data for EUR-JPY ***\n");
print_data(eur_jpy);
printf("\n\n*** Data for USD-JPY ***\n");
print_data(usd_jpy);
// Be nice, clean up
cbuf_free(eur_usd);
cbuf_free(eur_jpy);
cbuf_free(usd_jpy);
fclose(ifile) ;
return 0;
}
