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posix.cc (_Jv_platform_nanotime): Return nanoseconds, not microseconds; use gettimeofday when available.

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* posix.cc (_Jv_platform_nanotime): Return nanoseconds, not
	microseconds; use gettimeofday when available.
	* posix-threads.cc (_Jv_CondWait): Improve accuracy and range of
	timeout calculation.
	* testsuite/libjava.lang/Thread_Sleep_2.java: New.
	* testsuite/libjava.lang/Thread_Sleep_2.out: New.
	* testsuite/libjava.lang/Thread_Sleep_2.xfail: New.

From-SVN: r116941
This commit is contained in:
Geoffrey Keating 2006-09-14 01:17:31 +00:00 • committed by Geoffrey Keating
parent f5efb27f74
commit 06fcf75439
6 changed files with 81 additions and 16 deletions
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34
libjava/testsuite/libjava.lang/Thread_Sleep_2.java Normal file
View file

@ -0,0 +1,34 @@
// Test that Thread.sleep() is accurate
// and that nanoTime actually measures in nanoseconds.
public class Thread_Sleep_2
{
public static void main(String args[])
{
try
{
boolean ok = true;
for (int i = 0; i < 100; i++)
{
long start = System.nanoTime();
Thread.sleep(10);
long end = System.nanoTime();
if ((end - start) < 10000000)
{
System.out.print ("failed, iteration ");
System.out.print (i);
System.out.print (", time ");
System.out.print (end - start);
System.out.println ("ns");
ok = false;
}
}
if (ok)
System.out.println ("ok");
}
catch (InterruptedException x)
{
System.out.println("error: Thread interrupted.");
}
}
}