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8023173: FileDescriptor should respect append flag

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Reviewed-by: martin, alanb, rriggs
This commit is contained in:
Ivan Gerasimov 2014-10-28 15:36:27 +03:00
parent 5e152d5fcb
commit b051027d6f
19 changed files with 162 additions and 53 deletions
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20
jdk/src/java.base/windows/classes/sun/nio/ch/FileDispatcherImpl.java
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@ -31,22 +31,14 @@ import sun.misc.JavaIOFileDescriptorAccess;
class FileDispatcherImpl extends FileDispatcher
{
private static final JavaIOFileDescriptorAccess fdAccess =
SharedSecrets.getJavaIOFileDescriptorAccess();
static {
IOUtil.load();
}
/**
* Indicates if the dispatcher should first advance the file position
* to the end of file when writing.
*/
private final boolean append;
FileDispatcherImpl(boolean append) {
this.append = append;
}
FileDispatcherImpl() {
this(false);
}
@Override
@ -71,7 +63,7 @@ class FileDispatcherImpl extends FileDispatcher
}
int write(FileDescriptor fd, long address, int len) throws IOException {
return write0(fd, address, len, append);
return write0(fd, address, len, fdAccess.getAppend(fd));
}
int pwrite(FileDescriptor fd, long address, int len, long position)
@ -81,7 +73,7 @@ class FileDispatcherImpl extends FileDispatcher
}
long writev(FileDescriptor fd, long address, int len) throws IOException {
return writev0(fd, address, len, append);
return writev0(fd, address, len, fdAccess.getAppend(fd));
}
int force(FileDescriptor fd, boolean metaData) throws IOException {
@ -112,8 +104,6 @@ class FileDispatcherImpl extends FileDispatcher
FileDescriptor duplicateForMapping(FileDescriptor fd) throws IOException {
// on Windows we need to keep a handle to the file
JavaIOFileDescriptorAccess fdAccess =
SharedSecrets.getJavaIOFileDescriptorAccess();
FileDescriptor result = new FileDescriptor();
long handle = duplicateHandle(fdAccess.getHandle(fd));
fdAccess.setHandle(result, handle);