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25 
26 package sun.nio.ch;
27 
28 import java.io.*;
29 import java.nio.channels.*;
30 import java.nio.channels.spi.*;
31 
32 
33 class PipeImpl
34     extends Pipe
35 {
36 
37     // Source and sink channels
38     private final SourceChannel source;
39     private final SinkChannel sink;
40 
PipeImpl(SelectorProvider sp)41     PipeImpl(SelectorProvider sp) {
42         long pipeFds = IOUtil.makePipe(true);
43         int readFd = (int) (pipeFds >>> 32);
44         int writeFd = (int) pipeFds;
45         FileDescriptor sourcefd = new FileDescriptor();
46         IOUtil.setfdVal(sourcefd, readFd);
47         source = new SourceChannelImpl(sp, sourcefd);
48         FileDescriptor sinkfd = new FileDescriptor();
49         IOUtil.setfdVal(sinkfd, writeFd);
50         sink = new SinkChannelImpl(sp, sinkfd);
51     }
52 
source()53     public SourceChannel source() {
54         return source;
55     }
56 
sink()57     public SinkChannel sink() {
58         return sink;
59     }
60 
61 }
62