void cache_write(const char *path)
{
int vmajor, vminor;
FILE *f;
HDR *h;
if (check_cache_file(path, &vmajor, &vminor) == CACHE_BAD)
return;
if (!(f = fopen(path, "w")))
return;
fprintf(f, magic, DEPS_MAJOR, DEPS_MINOR);
fputc('\n', f);
for (h = hdrlist; h; h = h->next)
{
LIST *l;
fprintf(f, "%ld %s\n", h->time, h->file);
for (l = h->includes; l; l = list_next (l))
{
fprintf(f, "\t%s\n", l->string);
}
fprintf(f, "\n");
}
fclose(f);
}
void cache_read(const char *path)
{
FILE *f;
char buf[1024];
int vmajor, vminor;
HDR *h = 0;
int n;
time_t timeval;
if (check_cache_file(path, &vmajor, &vminor) != CACHE_OK)
return;
if ((vmajor != DEPS_MAJOR) || (vminor != DEPS_MINOR))
return;
if (!(f = fopen(path, "r")))
return;
/* Skip magic */
fgets(buf, sizeof(buf), f);
while (fgets(buf, sizeof (buf), f))
{
buf[strlen(buf) - 1] = '\0'; /* zap newline */
if (!buf[0])
continue;
if (buf[0] == '\t')
{
h->includes = list_new(h->includes, buf + 1, 0);
continue;
}
sscanf(buf, "%ld %n", &timeval, &n);
h = hdr_enter (buf + n);
h->time = timeval;
}
fclose(f);
}
int load_cache(const Config *c, Data *d) {
FILE *cf;
long cflen;
if(check_cache_file(c) != 0)
return -1;
if((cf = fopen(c->cache_file, "rb")) == NULL) {
LERROR(0, errno, "fopen()");
return -1;
}
fseek(cf, 0, SEEK_END);
cflen = ftell(cf);
fseek(cf, 0, SEEK_SET);
d->data = malloc(cflen + 1);
GUARD_MALLOC(d->data);
d->datalen = cflen;
fread(d->data, cflen, 1, cf);
fclose(cf);
return 0;
}
