public static ParcelFileDescriptor fromFd(int fd) throws IOException {
FileDescriptor original = new FileDescriptor();
original.setInt$(fd);
try {
return new ParcelFileDescriptor(Os.dup(original));
} catch (ErrnoException e) {
throw e.rethrowAsIOException();
}
}
/**
* Registers a server socket for zygote command connections
*
* @throws RuntimeException when open fails
*/
private static void registerZygoteSocket(String socketName) {
if (sServerSocket == null) {
int fileDesc;
final String fullSocketName = ANDROID_SOCKET_PREFIX + socketName;
try {
String env = System.getenv(fullSocketName);
fileDesc = Integer.parseInt(env);
} catch (RuntimeException ex) {
throw new RuntimeException(fullSocketName + " unset or invalid", ex);
}
try {
FileDescriptor fd = new FileDescriptor();
fd.setInt$(fileDesc);
sServerSocket = new LocalServerSocket(fd);
} catch (IOException ex) {
throw new RuntimeException("Error binding to local socket '" + fileDesc + "'", ex);
}
}
}
public static ParcelFileDescriptor adoptFd(int fd) {
FileDescriptor fdesc = new FileDescriptor();
fdesc.setInt$(fd);
return new ParcelFileDescriptor(fdesc);
}