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8271308: (fc) FileChannel.transferTo() transfers no more than Integer.MAX_VALUE bytes in one call

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Reviewed-by: alanb, vtewari
This commit is contained in:
Brian Burkhalter 2021-08-05 16:10:04 +00:00
parent 7234a433f8
commit e2c5bfe083
4 changed files with 183 additions and 16 deletions
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11
src/java.base/unix/native/libnio/ch/FileChannelImpl.c
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2000, 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
@ -252,3 +252,12 @@ Java_sun_nio_ch_FileChannelImpl_transferTo0(JNIEnv *env, jobject this,
#endif
}
JNIEXPORT jint JNICALL
Java_sun_nio_ch_FileChannelImpl_maxDirectTransferSize0(JNIEnv* env, jobject this)
{
#if defined(LINUX)
return 0x7ffff000; // 2,147,479,552 maximum for sendfile()
#else
return java_lang_Integer_MAX_VALUE;
#endif
}