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2013-02-28Add io_select_timeout to the io interfaceRichard Braun
This change fixes a problem that can occur with non-blocking (and also blocking for very short times) select/poll calls. The problem occurs because the timeout is implemented at the client side. For a non-blocking call, this means that (depending on the code path taken in the C library) the client could get a timeout without a full RPC round-trip to the server. Moving the implementation of the timeout to the servers guarantees a full round-trip, and correct results for non-blocking calls. The modifications in this change depend on the availability of the recently added pthread_hurd_cond_timedwait_np function in libpthread. * boot/boot.c (io_select_common): New static function. (S_io_select): Use io_select_common. (S_io_select_timeout): New function which makes use of io_select_common. * console-client/kbd-repeat.c (repeater_select): Add a timeout parameter. * console-client/pc-mouse.c (repeater_select): Likewise. * console-client/trans.c (io_select_common): New static function. (netfs_S_io_select): Use io_select_common. (netfs_S_io_select_timeout): New function which makes use of io_select_common. * console-client/trans.h (struct consnode): Add a timeout parameter. * hurd/io.defs (io_select_timeout): New MIG routine. * hurd/io_reply.defs (io_select_timeout_reply): New MIG simpleroutine. * hurd/io_request.defs (io_select_timeout_request): Likewise. * libdiskfs/io-select.c (diskfs_S_io_select_timeout): New function. * libnetfs/io-select.c (netfs_S_io_select_timeout): Likewise. * libpipe/pipe.c (pipe_pair_select): Add a timeout parameter. * libpipe/pipe.h (pipe_select_readable): Likewise. (pipe_select_writable): Likewise. (pipe_pair_select): Likewise. * libpipe/pq.h: Include <hurd/hurd_types.h>. * libtrivfs/io-select.c (trivfs_S_io_select_timeout): New function. * pfinet/glue-include/linux/sched.h: Include <errno.h>. (interruptible_sleep_on): Function removed, replaced with ... (interruptible_sleep_on_timeout): New function. (schedule): Update to use interruptible_sleep_on_timeout. (schedule_timeout): Likewise. * pfinet/io-ops.c (io_select_common): New static function. (S_io_select): Use io_select_common. (S_io_select_timeout): New function which makes use of io_select_common. * pfinet/tunnel.c (io_select_common): New static function. (trivfs_S_io_select): Use io_select_common. (trivfs_S_io_select_timeout): New function which makes use of io_select_common. * pflocal/connq.c (connq_listen): Replace noblock with a timeout parameter. * pflocal/connq.h: Include <hurd/hurd_types.h>. (connq_listen): Update declaration to replace noblock with a timeout parameter. * pflocal/io.c (io_select_common): New static function. (S_io_select): Use io_select_common. (S_io_select_timeout): New function which makes use of io_select_common. * pflocal/socket.c (S_socket_accept): Update call to connq_listen to match new declaration. * storeio/io.c (trivfs_S_io_select_timeout): New function. * term/ptyio.c (pty_io_select): Add a timeout parameter. * term/term.h (pty_io_select): Likewise. * term/users.c (io_select_common): New static function. (trivfs_S_io_select): Use io_select_common. (trivfs_S_io_select_timeout): New function which makes use of io_select_common. * trans/fifo.c (io_select_common): New static function. (trivfs_S_io_select): Use io_select_common. (trivfs_S_io_select_timeout): New function which makes use of io_select_common. * trans/firmlink.c (trivfs_S_io_select_timeout): New function. * trans/new-fifo.c (io_select_common): New static function. (trivfs_S_io_select): Use io_select_common. (trivfs_S_io_select_timeout): New function which makes use of io_select_common. * trans/null.c (trivfs_S_io_select_timeout): New function. * trans/streamio.c (io_select_common): New static function. (trivfs_S_io_select): Use io_select_common. (trivfs_S_io_select_timeout): New function which makes use of io_select_common.
2002-06-202002-06-20 Roland McGrath <roland@frob.com>Roland McGrath
* firmlink.c (trivfs_S_io_read): Fix pointer arithmetic. Reported by Nicola Girardi <nicola@g-n-u.de>.
2002-06-132002-06-13 Roland McGrath <roland@frob.com>Roland McGrath
* firmlink.c (trivfs_S_io_read): Fix type of DATA argument. * streamio.c (trivfs_S_io_read): Likewise. (trivfs_S_io_write): Likewise. * hello.c (trivfs_S_io_read): Likewise. * hello-mt.c (trivfs_S_io_read): Likewise. * null.c (trivfs_S_io_read): Likewise. (trivfs_S_io_write): Likewise. (trivfs_S_file_set_size): Add reply port args. * firmlink.c (trivfs_S_io_read): off_t -> loff_t (trivfs_S_io_select): Remove bogus last arg.
2002-06-072002-06-07 Roland McGrath <roland@frob.com>Roland McGrath
* firmlink.c (trivfs_S_io_readable): Use intptr_t, not off_t. (trivfs_S_io_read): Likewise.
2001-02-262001-02-25 Roland McGrath <roland@frob.com>Roland McGrath
* symlink.c: Include <string.h> for decls of built-ins. * firmlink.c: Include <stdlib.h> for exit decl. * ifsock.c: Likewise. * null.c: Likewise. * magic.c: Likewise. * fifo.c: Likewise. * hello.c: Likewise. * hello-mt.c: Likewise.
2001-02-12auth/Marcus Brinkmann
2001-02-12 Marcus Brinkmann <marcus@gnu.org> * auth.c (main): New variable ARGP defining a doc string. Pass address of ARGP to argp_parse(). exec/ 2001-02-12 Marcus Brinkmann <marcus@gnu.org> * main.c: Change hurd version name from proc to exec. (main): Add period to doc string. ftpfs/ 2001-02-12 Marcus Brinkmann <marcus@gnu.org> * ftpfs.c: Include <version.h>. Add global variable ARGP_PROGRAM_VERSION. Add period to DOC. hostmux/ 2001-02-12 Marcus Brinkmann <marcus@gnu.org> * hostmux.c: Include <version.h>. Add global variable ARGP_PROGRAM_VERSION. Add period to DOC. usermux/ 2001-02-12 Marcus Brinkmann <marcus@gnu.org> * usermux.c (options): Include <version.h>. Add global variable ARGP_PROGRAM_VERSION. Add period to DOC. trans/ 2001-02-12 Marcus Brinkmann <marcus@gnu.org> * fifo.c: Make version string say `fifo', not `null'. Add period to doc text in ARGP. * firmlink.c: Add period to doc text in ARGP_DOC, convert semi-colon to colon. * magic.c (options): Add period to DOC. * new-fifo.c (fifo_trans_parse_args): Add doc string to ARGP. Include <version.h>, new global variable ARGP_PROGRAM_VERSION. * crash.c: Include <version.h>, add global variable ARGP_PROGRAM_VERSION. * hello.c: Include <version.h>, add global variable ARGP_PROGRAM_VERSION. (hello_argp): Add doc string. * hello-mt.c: Likewise. * streamio.c: Add period to DOC. Change streamdev to streamio in version string. * password.c (main): Add period to doc string in ARGP.
1999-09-011999-08-31 Marcus Brinkmann <Marcus.Brinkmann@ruhr-uni-bochum.de>Roland McGrath
* bogus-fifo.c (main): Deallocate bootstrap port after using it. * fifo.c (main): Likewise. * firmlink.c (main): Likewise. * ifsock.c (main): Likewise. * magic.c (main): Likewise. * null.c (main): Likewise. * symlink.c (main): Likewise.
1999-07-111999-07-11 Roland McGrath <roland@baalperazim.frob.com>Roland McGrath
* firmlink.c: Add #include <sys/mman.h>.
1999-07-111999-07-11 Roland McGrath <roland@baalperazim.frob.com>Roland McGrath
* firmlink.c: Add #include <sys/mman.h>. (trivfs_S_io_read): Fix sloppy bugs in last change.
1999-07-111999-07-09 Thomas Bushnell, BSG <tb@mit.edu>Thomas Bushnell
* firmlink.c (trivfs_S_io_read): Use mmap instead of vm_allocate.
1998-07-201998-07-20 Roland McGrath <roland@baalperazim.frob.com>Roland McGrath
* firmlink.c (main): Fix return type to int, and use return. * fwd.c (main): Likewise. * new-fifo.c (main): Likewise. * magic.c (main): Likewise. * fifo.c (main): Likewise. * null.c (main): Likewise.
1997-08-20Wed Aug 20 14:07:56 1997 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu>Thomas Bushnell
* crash.c (main): New args for ports_manage_port_operations_multithread. * fifo.c (main): Likewise. * firmlink.c (main): Likewise. * new-fifo.c (main): Likewise. * null.c (main): Likewise.
1997-03-01(main):Miles Bader
Make multithreaded.
1997-02-25Doc fixes.Miles Bader
1997-02-23(options, parse_opt):Miles Bader
Remove -i. (getroot): If firmlink returns ENOENT, act like an unresolvable link. Don't support visible mode. (argp): Use OPTIONS.
1997-02-21Initial checkin.Miles Bader