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#include <time.h>
#include <stdarg.h>
#include <stdbool.h>
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../src/nissy.h"
static void log_stderr(const char *, void *);
static double timerun(void (*)(void));
static void writetable(const unsigned char *, int64_t, const char *);
static long long int generatetable(const char *, unsigned char **,
char [static NISSY_SIZE_DATAID]);
static int getdata(const char *, unsigned char **, const char *);
static void gendata_run(const char *, uint64_t[static 21]);
static void
log_stderr(const char *str, void *unused)
{
fprintf(stderr, "%s", str);
}
#ifdef _WIN32
#include <windows.h>
static double
timerun(void (*run)(void))
{
LARGE_INTEGER freq, start, end;
double tdiff;
fflush(stdout);
if (run == NULL) {
printf("nothing to run!\n");
fflush(stdout);
return -1.0;
}
QueryPerformanceFrequency(&freq);
QueryPerformanceCounter(&start);
run();
QueryPerformanceCounter(&end);
tdiff = (double)(end.QuadPart - start.QuadPart) / freq.QuadPart;
printf("---------\n");
printf("\nTotal time: %.4fs\n", tdiff);
fflush(stdout);
return tdiff;
}
#else
static double
timerun(void (*run)(void))
{
struct timespec start, end;
double tdiff, tdsec, tdnano;
fflush(stdout);
if (run == NULL) {
printf("nothing to run!\n");
fflush(stdout);
return -1.0;
}
clock_gettime(CLOCK_MONOTONIC, &start);
run();
clock_gettime(CLOCK_MONOTONIC, &end);
tdsec = end.tv_sec - start.tv_sec;
tdnano = end.tv_nsec - start.tv_nsec;
tdiff = tdsec + 1e-9 * tdnano;
printf("---------\n");
printf("\nTotal time: %.4fs\n", tdiff);
fflush(stdout);
return tdiff;
}
#endif
static void
writetable(const unsigned char *buf, int64_t size, const char *filename)
{
FILE *f;
if ((f = fopen(filename, "wb")) == NULL) {
printf("Could not write tables to file %s"
", will be regenerated next time.\n", filename);
} else {
fwrite(buf, size, 1, f);
fclose(f);
printf("Table written to %s.\n", filename);
}
}
static long long int
generatetable(
const char *solver,
unsigned char **buf,
char dataid[static NISSY_SIZE_DATAID]
)
{
long long int size, gensize;
size = nissy_solverinfo(solver, dataid);
if (size < 0) {
printf("Error getting table size.\n");
return -1;
}
*buf = malloc(size);
gensize = nissy_gendata(solver, size, *buf);
if (gensize != size) {
printf("Error generating table");
if (gensize == NISSY_OK)
printf(" (got %lld bytes)", gensize);
printf("\n");
return -2;
}
return gensize;
}
static int
getdata(
const char *solver,
unsigned char **buf,
const char *filename
) {
long long int size, sizeread;
FILE *f;
char dataid[NISSY_SIZE_DATAID];
if ((f = fopen(filename, "rb")) == NULL) {
printf("Table file not found, generating it.\n");
size = generatetable(solver, buf, dataid);
switch (size) {
case -1:
goto getdata_error_nofree;
case -2:
goto getdata_error;
default:
writetable(*buf, size, filename);
break;
}
} else {
printf("Reading tables from file %s\n", filename);
size = nissy_solverinfo(solver, dataid);
*buf = malloc(size);
sizeread = fread(*buf, size, 1, f);
fclose(f);
if (sizeread != 1) {
printf("Error reading table, stopping\n");
goto getdata_error;
}
}
return 0;
getdata_error:
free(*buf);
getdata_error_nofree:
return 1;
}
static void
gendata_run(
const char *solver,
uint64_t expected[static 21]
) {
long long int size;
char filename[1024], dataid[NISSY_SIZE_DATAID];
unsigned char *buf;
size = generatetable(solver, &buf, dataid);
sprintf(filename, "tables/%s", dataid);
switch (size) {
case -1:
return;
case -2:
goto gendata_run_finish;
default:
printf("Succesfully generated %lld bytes. "
"See above for details on the tables.\n", size);
writetable(buf, size, filename);
break;
}
gendata_run_finish:
free(buf);
}
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