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Fixed initialization of high res timer hack

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This commit is contained in:
nathan 2020-07-07 22:42:01 +02:00
parent f526425c1a
commit 8a36a2f606
1 changed files with 27 additions and 31 deletions
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58
src/dorkbox/util/OS.java
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@ -47,33 +47,6 @@ class OS {
private static final String originalTimeZone = TimeZone.getDefault().getID();
static {
/*
* By default, the timer resolution on Windows ARE NOT high-resolution (16ms vs 1ms)
*
* 'Thread.sleep(1)' will not really sleep for 1ms, but will really sleep for ~16ms. This long-running sleep will trick Windows
* into using higher resolution timers.
*
* See: https://bugs.java.com/bugdatabase/view_bug.do?bug_id=6435126
*/
if (OS.isWindows()) {
// only necessary on windows
Thread timerAccuracyThread = new Thread(new Runnable() {
@SuppressWarnings("BusyWait")
@Override
public
void run() {
while (true) {
try {
Thread.sleep(Long.MAX_VALUE);
} catch (Exception ignored) {
}
}
}
}, "FixWindowsHighResTimer");
timerAccuracyThread.setDaemon(true);
timerAccuracyThread.start();
}
if (!TEMP_DIR.isDirectory()) {
// create the temp dir if necessary because the TEMP dir doesn't exist.
TEMP_DIR.mkdirs();
@ -184,6 +157,33 @@ class OS {
else {
osType = null;
}
/*
* By default, the timer resolution on Windows ARE NOT high-resolution (16ms vs 1ms)
*
* 'Thread.sleep(1)' will not really sleep for 1ms, but will really sleep for ~16ms. This long-running sleep will trick Windows
* into using higher resolution timers.
*
* See: https://bugs.java.com/bugdatabase/view_bug.do?bug_id=6435126
*/
if (osType == null || osType.isWindows()) {
// only necessary on windows
Thread timerAccuracyThread = new Thread(new Runnable() {
@SuppressWarnings("BusyWait")
@Override
public
void run() {
while (true) {
try {
Thread.sleep(Long.MAX_VALUE);
} catch (Exception ignored) {
}
}
}
}, "FixWindowsHighResTimer");
timerAccuracyThread.setDaemon(true);
timerAccuracyThread.start();
}
}
/**
@ -333,10 +333,6 @@ class OS {
return defaultValue;
}
/**
* @return the OS Type that is running on this machine
*/