void FioOpenFile(int slot, const char *filename)
{
FILE *f;
#if defined(LIMITED_FDS)
FioFreeHandle();
#endif /* LIMITED_FDS */
f = FioFOpenFile(filename);
if (f == NULL) usererror("Cannot open file '%s'", filename);
uint32 pos = ftell(f);
FioCloseFile(slot); // if file was opened before, close it
_fio.handles[slot] = f;
_fio.filenames[slot] = filename;
/* Store the filename without path and extension */
const char *t = strrchr(filename, PATHSEPCHAR);
_fio.shortnames[slot] = strdup(t == NULL ? filename : t);
char *t2 = strrchr(_fio.shortnames[slot], '.');
if (t2 != NULL) *t2 = '\0';
strtolower(_fio.shortnames[slot]);
#if defined(LIMITED_FDS)
_fio.usage_count[slot] = 0;
_fio.open_handles++;
#endif /* LIMITED_FDS */
FioSeekToFile(slot, pos);
}
void FioCloseAll()
{
int i;
for (i = 0; i != lengthof(_fio.handles); i++)
FioCloseFile(i);
}
static void FioFreeHandle()
{
/* If we are about to open a file that will exceed the limit, close a file */
if (_fio.open_handles + 1 == LIMITED_FDS) {
uint i, count;
int slot;
count = UINT_MAX;
slot = -1;
/* Find the file that is used the least */
for (i = 0; i < lengthof(_fio.handles); i++) {
if (_fio.handles[i] != NULL && _fio.usage_count[i] < count) {
count = _fio.usage_count[i];
slot = i;
}
}
assert(slot != -1);
DEBUG(misc, 6, "Closing filehandler '%s' in slot '%d' because of fd-limit", _fio.filenames[slot], slot);
FioCloseFile(slot);
}
}
void FioCloseAll()
{
for (int i = 0; i != lengthof(_fio.handles); i++) {
FioCloseFile(i);
}
}
