Add dummy timer for Windows

src/hyperfine/timer/cputimer.rs

@@ -1,5 +1,3 @@
-use std::mem;
-
 use hyperfine::internal::Second;
 use hyperfine::timer::Timer;
 
@@ -22,8 +20,10 @@ struct CPUInterval {
 }
 
 /// Read CPU execution times ('user' and 'system')
+#[cfg(not(target_os = "windows"))]
 fn get_cpu_times() -> CPUTimes {
     use libc::{getrusage, rusage, RUSAGE_CHILDREN};
+    use std::mem;
 
     let result: rusage = unsafe {
         let mut buf = mem::zeroed();
@@ -42,6 +42,15 @@ fn get_cpu_times() -> CPUTimes {
     }
 }
 
+/// Read CPU execution times (dummy for now)
+#[cfg(windows)]
+fn get_cpu_times() -> CPUTimes {
+    CPUTimes {
+        user_usec: 0,
+        system_usec: 0,
+    }
+}
+
 /// Compute the time intervals in between two `CPUTimes` snapshots
 fn cpu_time_interval(start: &CPUTimes, end: &CPUTimes) -> CPUInterval {
     CPUInterval {