poll_using_select.h 3.3 KB

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  1. /** BEGIN COPYRIGHT BLOCK
  2. * This Program is free software; you can redistribute it and/or modify it under
  3. * the terms of the GNU General Public License as published by the Free Software
  4. * Foundation; version 2 of the License.
  5. *
  6. * This Program is distributed in the hope that it will be useful, but WITHOUT
  7. * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  8. * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
  9. *
  10. * You should have received a copy of the GNU General Public License along with
  11. * this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
  12. * Place, Suite 330, Boston, MA 02111-1307 USA.
  13. *
  14. * In addition, as a special exception, Red Hat, Inc. gives You the additional
  15. * right to link the code of this Program with code not covered under the GNU
  16. * General Public License ("Non-GPL Code") and to distribute linked combinations
  17. * including the two, subject to the limitations in this paragraph. Non-GPL Code
  18. * permitted under this exception must only link to the code of this Program
  19. * through those well defined interfaces identified in the file named EXCEPTION
  20. * found in the source code files (the "Approved Interfaces"). The files of
  21. * Non-GPL Code may instantiate templates or use macros or inline functions from
  22. * the Approved Interfaces without causing the resulting work to be covered by
  23. * the GNU General Public License. Only Red Hat, Inc. may make changes or
  24. * additions to the list of Approved Interfaces. You must obey the GNU General
  25. * Public License in all respects for all of the Program code and other code used
  26. * in conjunction with the Program except the Non-GPL Code covered by this
  27. * exception. If you modify this file, you may extend this exception to your
  28. * version of the file, but you are not obligated to do so. If you do not wish to
  29. * provide this exception without modification, you must delete this exception
  30. * statement from your version and license this file solely under the GPL without
  31. * exception.
  32. *
  33. *
  34. * Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
  35. * Copyright (C) 2005 Red Hat, Inc.
  36. * All rights reserved.
  37. * END COPYRIGHT BLOCK **/
  38. #ifndef _POLL_USING_SELECT_H
  39. #define _POLL_USING_SELECT_H
  40. #include <sys/time.h>
  41. #include <sys/types.h>
  42. #include <unistd.h>
  43. #include "slap.h"
  44. /* uncomment for debugging info
  45. #define DEBUG_POLL_AS_SELECT
  46. */
  47. #define MSECONDS 1000
  48. struct my_pollfd {
  49. int fd;
  50. short events;
  51. short revents;
  52. };
  53. /* poll events */
  54. #define POLLIN 0x0001 /* fd is readable */
  55. #define POLLPRI 0x0002 /* high priority info at fd */
  56. #define POLLOUT 0x0004 /* fd is writeable (won't block) */
  57. #define POLLRDNORM 0x0040 /* normal data is readable */
  58. #define POLLWRNORM POLLOUT
  59. #define POLLRDBAND 0x0080 /* out-of-band data is readable */
  60. #define POLLWRBAND 0x0100 /* out-of-band data is writeable */
  61. #define POLLNORM POLLRDNORM
  62. #define POLLERR 0x0008 /* fd has error condition */
  63. #define POLLHUP 0x0010 /* fd has been hung up on */
  64. #define POLLNVAL 0x0020 /* invalid pollfd entry */
  65. int poll_using_select(struct my_pollfd *filedes, int nfds, int timeout);
  66. #endif /* _POLL_USING_SELECT_H */