PISystemTime toTimespec and PIConditionVariable fix

libs/main/core/pitime.h

@@ -93,6 +93,8 @@ public:
 	//! If you call this function on system time returned with \a PISystemTime::current() thread will be sleep almost forever.
 	void sleep() {piUSleep(piFloord(toMicroseconds()));} // wait self value, useful to wait some dT = (t1 - t0)
 	
+	//! On Unix system assign current value to timespec struct
+	void toTimespec(void *ts);
 	
 	//! Returns copy of this system time with absolutely values of s and ns
 	PISystemTime abs() const;