int split_create_1(split_info_t *s, char *fname,
u64 split_size, u64 total_size, bool overwrite)
{
int i;
int fd;
char sname[1024];
int error = 0;
split_init(s, fname);
s->create_mode = 1;
// check if any file already exists
for (i=-1; i<s->max_split; i++) {
split_get_fname(s, i, sname);
if (overwrite) {
remove(sname);
} else {
fd = open(sname, O_RDONLY);
if (fd >= 0) {
fprintf(stderr, "Error: file already exists: %s\n", sname);
close(fd);
error = 1;
}
}
}
if (error) {
split_init(s, "");
return -1;
}
split_set_size(s, split_size, total_size);
return 0;
}
// Reallocate split array to `newsize`. If larger than the old splitcount, new
// splits are initialized to NULL account and zero amount.
void
transaction_resize_splits(Transaction *txn, unsigned int newsize)
{
if (newsize == txn->splitcount) {
return;
}
txn->splits = realloc(txn->splits, sizeof(Split) * newsize);
for (unsigned int i=txn->splitcount; i<newsize; i++) {
split_init(&txn->splits[i], NULL, amount_zero(), i);
}
txn->splitcount = newsize;
}
int split_open_1(split_info_t *s, char *fname)
{
int i;
u64 size = 0;
u64 total_size = 0;
u64 split_size = 0;
int fd;
split_init(s, fname);
for (i=0; i<s->max_split; i++) {
fd = split_open_file(s, i);
if (fd<0) {
if (i==0) goto err;
break;
}
// check previous size - all splits except last must be same size
if (i > 0 && size != split_size) {
fprintf(stderr, "split %d: invalid size "FMT_lld"", i, size);
goto err;
}
// get size
//fseeko(f, 0, SEEK_END);
//size = ftello(f);
size = lseek(fd, 0, SEEK_END);
// check sector alignment
if (size % 512) {
fprintf(stderr, "split %d: size ("FMT_lld") not sector (512) aligned!",
i, size);
}
// first sets split size
if (i==0) {
split_size = size;
}
total_size += size;
}
split_set_size(s, split_size, total_size);
return 0;
err:
split_close_1(s);
return -1;
}
