//! This module corresponds to `mach/sync_policy.h` pub type sync_policy_t = libc::c_int; pub const SYNC_POLICY_FIFO: sync_policy_t = 0x0; pub const SYNC_POLICY_FIXED_PRIORITY: sync_policy_t = 0x1; pub const SYNC_POLICY_REVERSED: sync_policy_t = 0x2; pub const SYNC_POLICY_ORDER_MASK: sync_policy_t = 0x3; pub const SYNC_POLICY_LIFO: sync_policy_t = SYNC_POLICY_FIFO | SYNC_POLICY_REVERSED;