// ignore-windows: No libc on Windows // ignore-macos: pthread_condattr_setclock is not supported on MacOS. // compile-flags: -Zmiri-disable-isolation #![feature(rustc_private)] /// Test that conditional variable timeouts are working properly with both /// monotonic and system clocks. extern crate libc; use std::mem; use std::time::Instant; fn test_timed_wait_timeout(clock_id: i32) { unsafe { let mut attr: libc::pthread_condattr_t = mem::zeroed(); assert_eq!(libc::pthread_condattr_init(&mut attr as *mut _), 0); assert_eq!(libc::pthread_condattr_setclock(&mut attr as *mut _, clock_id), 0); let mut cond: libc::pthread_cond_t = mem::zeroed(); assert_eq!(libc::pthread_cond_init(&mut cond as *mut _, &attr as *const _), 0); assert_eq!(libc::pthread_condattr_destroy(&mut attr as *mut _), 0); let mut mutex: libc::pthread_mutex_t = mem::zeroed(); let mut now: libc::timespec = mem::zeroed(); assert_eq!(libc::clock_gettime(clock_id, &mut now), 0); // Waiting for a second... mostly because waiting less requires mich more tricky arithmetic. // FIXME: wait less. let timeout = libc::timespec { tv_sec: now.tv_sec + 1, tv_nsec: now.tv_nsec }; assert_eq!(libc::pthread_mutex_lock(&mut mutex as *mut _), 0); let current_time = Instant::now(); assert_eq!( libc::pthread_cond_timedwait(&mut cond as *mut _, &mut mutex as *mut _, &timeout), libc::ETIMEDOUT ); let elapsed_time = current_time.elapsed().as_millis(); assert!(900 <= elapsed_time && elapsed_time <= 1300); assert_eq!(libc::pthread_mutex_unlock(&mut mutex as *mut _), 0); assert_eq!(libc::pthread_mutex_destroy(&mut mutex as *mut _), 0); assert_eq!(libc::pthread_cond_destroy(&mut cond as *mut _), 0); } } fn main() { test_timed_wait_timeout(libc::CLOCK_MONOTONIC); test_timed_wait_timeout(libc::CLOCK_REALTIME); }