87         nioAccess.unload(min, unmapper.isSync(), length);
  88     }
  89 
  90     @Override
  91     public boolean isLoaded() {
  92         return nioAccess.isLoaded(min, unmapper.isSync(), length);
  93     }
  94 
  95     @Override
  96     public void force() {
  97         nioAccess.force(unmapper.fileDescriptor(), min, unmapper.isSync(), 0, length);
  98     }
  99 
 100     // factories
 101 
 102     public static MappedMemorySegment makeMappedSegment(Path path, long bytesSize, FileChannel.MapMode mapMode) throws IOException {
 103         if (bytesSize <= 0) throw new IllegalArgumentException("Requested bytes size must be > 0.");
 104         try (FileChannelImpl channelImpl = (FileChannelImpl)FileChannel.open(path, openOptions(mapMode))) {
 105             UnmapperProxy unmapperProxy = channelImpl.mapInternal(mapMode, 0L, bytesSize);
 106             MemoryScope scope = new MemoryScope(null, unmapperProxy::unmap);




 107             return new MappedMemorySegmentImpl(unmapperProxy.address(), unmapperProxy, bytesSize,
 108                     defaultAccessModes(bytesSize), Thread.currentThread(), scope);
 109         }
 110     }
 111 
 112     private static OpenOption[] openOptions(FileChannel.MapMode mapMode) {
 113         if (mapMode == FileChannel.MapMode.READ_ONLY) {
 114             return new OpenOption[] { StandardOpenOption.READ };
 115         } else if (mapMode == FileChannel.MapMode.READ_WRITE || mapMode == FileChannel.MapMode.PRIVATE) {
 116             return new OpenOption[] { StandardOpenOption.READ, StandardOpenOption.WRITE };
 117         } else {
 118             throw new UnsupportedOperationException("Unsupported map mode: " + mapMode);
 119         }
 120     }
 121 }

  87         nioAccess.unload(min, unmapper.isSync(), length);
  88     }
  89 
  90     @Override
  91     public boolean isLoaded() {
  92         return nioAccess.isLoaded(min, unmapper.isSync(), length);
  93     }
  94 
  95     @Override
  96     public void force() {
  97         nioAccess.force(unmapper.fileDescriptor(), min, unmapper.isSync(), 0, length);
  98     }
  99 
 100     // factories
 101 
 102     public static MappedMemorySegment makeMappedSegment(Path path, long bytesSize, FileChannel.MapMode mapMode) throws IOException {
 103         if (bytesSize <= 0) throw new IllegalArgumentException("Requested bytes size must be > 0.");
 104         try (FileChannelImpl channelImpl = (FileChannelImpl)FileChannel.open(path, openOptions(mapMode))) {
 105             UnmapperProxy unmapperProxy = channelImpl.mapInternal(mapMode, 0L, bytesSize);
 106             MemoryScope scope = new MemoryScope(null, unmapperProxy::unmap);
 107             int modes = defaultAccessModes(bytesSize);
 108             if (mapMode == FileChannel.MapMode.READ_ONLY) {
 109                 modes &= ~WRITE;
 110             }
 111             return new MappedMemorySegmentImpl(unmapperProxy.address(), unmapperProxy, bytesSize,
 112                     modes, Thread.currentThread(), scope);
 113         }
 114     }
 115 
 116     private static OpenOption[] openOptions(FileChannel.MapMode mapMode) {
 117         if (mapMode == FileChannel.MapMode.READ_ONLY) {
 118             return new OpenOption[] { StandardOpenOption.READ };
 119         } else if (mapMode == FileChannel.MapMode.READ_WRITE || mapMode == FileChannel.MapMode.PRIVATE) {
 120             return new OpenOption[] { StandardOpenOption.READ, StandardOpenOption.WRITE };
 121         } else {
 122             throw new UnsupportedOperationException("Unsupported map mode: " + mapMode);
 123         }
 124     }
 125 }