NTSTATUS do_lock_spin(files_struct *fsp,connection_struct *conn, uint16 lock_pid,
SMB_BIG_UINT count,SMB_BIG_UINT offset,enum brl_type lock_type)
{
int j, maxj = lp_lock_spin_count();
int sleeptime = lp_lock_sleep_time();
NTSTATUS status, ret;
if (maxj <= 0)
maxj = 1;
ret = NT_STATUS_OK; /* to keep dumb compilers happy */
for (j = 0; j < maxj; j++) {
status = do_lock(fsp, conn, lock_pid, count, offset, lock_type);
if (!NT_STATUS_EQUAL(status, NT_STATUS_LOCK_NOT_GRANTED) &&
!NT_STATUS_EQUAL(status, NT_STATUS_FILE_LOCK_CONFLICT)) {
return status;
}
/* if we do fail then return the first error code we got */
if (j == 0) {
ret = status;
}
if (sleeptime)
sys_usleep(sleeptime);
}
return ret;
}
NTSTATUS do_lock_spin(files_struct *fsp,
uint16 lock_pid,
SMB_BIG_UINT count,
SMB_BIG_UINT offset,
enum brl_type lock_type,
enum brl_flavour lock_flav,
BOOL *my_lock_ctx)
{
int j, maxj = lp_lock_spin_count();
int sleeptime = lp_lock_sleep_time();
NTSTATUS status, ret;
if (maxj <= 0) {
maxj = 1;
}
ret = NT_STATUS_OK; /* to keep dumb compilers happy */
for (j = 0; j < maxj; j++) {
status = do_lock(fsp,
lock_pid,
count,
offset,
lock_type,
lock_flav,
my_lock_ctx);
if (!NT_STATUS_EQUAL(status, NT_STATUS_LOCK_NOT_GRANTED) &&
!NT_STATUS_EQUAL(status, NT_STATUS_FILE_LOCK_CONFLICT)) {
return status;
}
/* if we do fail then return the first error code we got */
if (j == 0) {
ret = status;
/* Don't spin if we blocked ourselves. */
if (*my_lock_ctx) {
return ret;
}
/* Only spin for Windows locks. */
if (lock_flav == POSIX_LOCK) {
return ret;
}
}
if (sleeptime) {
sys_usleep(sleeptime);
}
}
return ret;
}