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8264774: Implementation of Foreign Function and Memory API (Incubator)

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Co-authored-by: Paul Sandoz <psandoz@openjdk.org>
Co-authored-by: Jorn Vernee <jvernee@openjdk.org>
Co-authored-by: Vladimir Ivanov <vlivanov@openjdk.org>
Co-authored-by: Athijegannathan Sundararajan <sundar@openjdk.org>
Co-authored-by: Chris Hegarty <chegar@openjdk.org>
Reviewed-by: psandoz, chegar, mchung, vlivanov
This commit is contained in:
Maurizio Cimadamore 2021-06-02 10:53:06 +00:00
parent 71425ddfb4
commit a223189b06
219 changed files with 10936 additions and 5695 deletions
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16
src/java.base/windows/classes/sun/nio/ch/WindowsAsynchronousSocketChannelImpl.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2008, 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -400,6 +400,7 @@ class WindowsAsynchronousSocketChannelImpl
// set by run method
private ByteBuffer[] shadow;
private Runnable scopeHandleReleasers;
ReadTask(ByteBuffer[] bufs,
boolean scatteringRead,
@ -416,6 +417,7 @@ class WindowsAsynchronousSocketChannelImpl
* it substitutes non-direct buffers with direct buffers.
*/
void prepareBuffers() {
scopeHandleReleasers = IOUtil.acquireScopes(bufs);
shadow = new ByteBuffer[numBufs];
long address = readBufferArray;
for (int i=0; i<numBufs; i++) {
@ -429,10 +431,10 @@ class WindowsAsynchronousSocketChannelImpl
// substitute with direct buffer
ByteBuffer bb = Util.getTemporaryDirectBuffer(rem);
shadow[i] = bb;
a = ((DirectBuffer)bb).address();
a = IOUtil.bufferAddress(bb);
} else {
shadow[i] = dst;
a = ((DirectBuffer)dst).address() + pos;
a = IOUtil.bufferAddress(dst) + pos;
}
unsafe.putAddress(address + OFFSETOF_BUF, a);
unsafe.putInt(address + OFFSETOF_LEN, rem);
@ -490,6 +492,7 @@ class WindowsAsynchronousSocketChannelImpl
Util.releaseTemporaryDirectBuffer(shadow[i]);
}
}
IOUtil.releaseScopes(scopeHandleReleasers);
}
@Override
@ -671,6 +674,7 @@ class WindowsAsynchronousSocketChannelImpl
// set by run method
private ByteBuffer[] shadow;
private Runnable scopeHandleReleasers;
WriteTask(ByteBuffer[] bufs,
boolean gatheringWrite,
@ -687,6 +691,7 @@ class WindowsAsynchronousSocketChannelImpl
* it substitutes non-direct buffers with direct buffers.
*/
void prepareBuffers() {
scopeHandleReleasers = IOUtil.acquireScopes(bufs);
shadow = new ByteBuffer[numBufs];
long address = writeBufferArray;
for (int i=0; i<numBufs; i++) {
@ -703,10 +708,10 @@ class WindowsAsynchronousSocketChannelImpl
bb.flip();
src.position(pos); // leave heap buffer untouched for now
shadow[i] = bb;
a = ((DirectBuffer)bb).address();
a = IOUtil.bufferAddress(bb);
} else {
shadow[i] = src;
a = ((DirectBuffer)src).address() + pos;
a = IOUtil.bufferAddress(src) + pos;
}
unsafe.putAddress(address + OFFSETOF_BUF, a);
unsafe.putInt(address + OFFSETOF_LEN, rem);
@ -754,6 +759,7 @@ class WindowsAsynchronousSocketChannelImpl
Util.releaseTemporaryDirectBuffer(shadow[i]);
}
}
IOUtil.releaseScopes(scopeHandleReleasers);
}
@Override