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#include <stdio.h>
#include <errno.h>
#include <stdint.h>
#include <string.h>
#include "config.h"
int
state_load(config_t* conf, uint32_t* map, uint32_t* jobs_done) {
FILE* fh = NULL;
size_t mapsize;
int errsv;
mapsize = conf->width * conf->height * conf->iters_n;
if(!(fh = fopen(conf->statefile, "rb"))) {
if(errno == ENOENT) {
memset(map, 0, mapsize);
*jobs_done = 0;
return 1;
}
return 0;
}
if(fread(jobs_done, sizeof(uint32_t), 1, fh) != 1) {
errsv = errno;
fclose(fh);
errno = errsv;
return 0;
}
if(fread(map, sizeof(uint32_t), mapsize, fh) != mapsize) {
errsv = errno;
fclose(fh);
errno = errsv;
return 0;
}
fclose(fh);
return 1;
}
int
state_save(config_t* conf, uint32_t* map, uint32_t jobs_done) {
FILE* fh = NULL;
size_t mapsize;
int errsv;
mapsize = conf->width * conf->height * conf->iters_n;
if(!(fh = fopen(conf->statefile, "wb"))) {
return 0;
}
if(fwrite(&jobs_done, sizeof(uint32_t), 1, fh) != 1) {
errsv = errno;
fclose(fh);
errno = errsv;
return 0;
}
if(fwrite(map, sizeof(uint32_t), mapsize, fh) != mapsize) {
errsv = errno;
fclose(fh);
errno = errsv;
return 0;
}
fclose(fh);
return 1;
}
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