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8198562: (ch) Separate blocking and non-blocking code paths (part 1)

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8198754: (ch) Separate blocking and non-blocking code paths (part 2)

Reviewed-by: bpb
This commit is contained in:
Alan Bateman 2018-02-28 09:54:38 +00:00
parent 3918ed17a5
commit 13dd8888d2
16 changed files with 1645 additions and 1279 deletions
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27
src/java.base/share/classes/java/lang/Thread.java
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@ -231,9 +231,10 @@ class Thread implements Runnable {
/* Set the blocker field; invoked via jdk.internal.misc.SharedSecrets
* from java.nio code
*/
void blockedOn(Interruptible b) {
synchronized (blockerLock) {
blocker = b;
static void blockedOn(Interruptible b) {
Thread me = Thread.currentThread();
synchronized (me.blockerLock) {
me.blocker = b;
}
}
@ -1006,18 +1007,22 @@ class Thread implements Runnable {
* @spec JSR-51
*/
public void interrupt() {
if (this != Thread.currentThread())
Thread me = Thread.currentThread();
if (this != me)
checkAccess();
synchronized (blockerLock) {
Interruptible b = blocker;
if (b != null) {
interrupt0(); // Just to set the interrupt flag
b.interrupt(this);
return;
// set interrupt status
interrupt0();
// thread may be blocked in an I/O operation
if (this != me && blocker != null) {
synchronized (blockerLock) {
Interruptible b = blocker;
if (b != null) {
b.interrupt(this);
}
}
}
interrupt0();
}
/**