pflocal patch from neal

[Alfred M. Szmidt]

Commited the following to ams-branch.  Neal promised to commit it, but
he didn't.

pflocal/ChangeLog
2006-01-07  Neal H. Walfield  <neal@gnu.org>

        * connq.c (struct connq): Changed type of HEAD to `struct
        connq_request *'.  Changed type of TAIL to `struct connq_request
        **'.  Removed members NOQUEUE, QUEUE, and LENGTH.  Added members
        COUNT, MAX, CONNECTORS, NUM_CONNECTORS.
        (qnext): Function removed.
        (struct connq_request): Removed members SIGNAL, LOCK, COMPLETED
        and ERR.  Added member NEXT.
        (connq_request_enqueue, connq_request_dequeue): New functions.
        (connq_connect_complete, connq_connect_cancel): Likewise.
        (connq_request_init, connq_create, connq_destroy): Updated to new
        semantics.
        (connq_connect): Rewrite so that we don't block until there is an
        acceptor, but until there is space for a request. Removed SOCK
        parameter.  Updated all references accordingly.
        (connq_listen): Rewrite so that we don't block until there is a
        connector, but until there is a request in the queue.  Removed REQ
        parameter.  Updated all references accordingly.
        (connq_set_length): Rewrite.
        (connq_compress) [0]: Function removed.
        (connq_request_complete): Likewise.

        * connq.h (struct connq_request): Forward declaration removed.
        (connq_request_complete): Declaration removed.
        (connq_connect_complete, connq_connect_cancel): New declarations.

        * socket.c (S_socket_connect): Create the server socket here ...
        (S_socket_accept): ... not here.

2005-05-17  Neal H. Walfield  <neal@gnu.org>

        * sock.c (sock_free): Don't destroy SOCK->CONNECT_QUEUE.

2002-06-08  Roland McGrath  <roland@frob.com>

        * io.c (S_io_identity): Use ino_t for FILENO.

2002-05-08  Roland McGrath  <roland@frob.com>

        * io.c (S_io_reauthenticate): unsigned -> size_t
        (S_io_restrict_auth): Likewise.

2002-04-24  Ognyan Kulev <ogi@fmi.uni-sofia.bg>

        * sock.c (sock_shutdown): When both SHUTDOWN_READ and
        SHUTDOWN_WRITE are set in FLAGS unlock sock->lock after all
        processing of `sock' is finished.
        (sock_create): Replace bzero with memset.

2001-12-22  Roland McGrath  <roland@frob.com>

        * connq.c (connq_compress): #if 0 out unused function.

        * sock.h (sock_deref): Don't define this extern inline.
        Instead, use static inline and __attribute__ ((unused)).
        * mig-decls.h (begin_using_sock_user_port): Likewise.
        (end_using_sock_user_port): Likewise.
        (begin_using_addr_port): Likewise.
        (end_using_addr_port): Likewise.

2001-03-31  Roland McGrath  <roland@frob.com>

        * sock.c: Include "connq.h" for connq_destroy decl.

2001-02-20  Marcus Brinkmann  <marcus@gnu.org>

        * connq.c: Include <assert.h>. Reported by Arkadi E. Shishlov
        <arkadi@it.lv>.

2001-02-11  Marcus Brinkmann  <marcus@gnu.org>

        * connq.c (connq_destroy): New function.
        * connq.h: Prototype connq_destroy.
        * sock.c (sock_free): Call connq_destroy when listen or connect
        queue exist.

2000-08-09  Mark Kettenis  <kettenis@gnu.org>

        * pf.c (S_socket_create): Only accept S_IFCHR, S_IFSOCK and
        S_IFIFO as `magic' protocols.

2000-08-02  Mark Kettenis  <kettenis@gnu.org>

        Add `magic' protocols to specify the file type of a sockets.  This
        allows implementation of POSIX pipes by using a S_IFSOCK protocol.
        * sock.h: Include <sys/types.h>.
        (struct sock): Add new member `mode'.
        (sock_create): Add new parameter `mode'.
        * sock.c (sock_create): Initialize `mode' member of struct sock,
        with new parameter.
        * pf.c (S_socket_create): Pass file type/mode to sock_create based
        on PROTOCOL.
        * io.c (S_io_stat): Use new member of `struct sock' to set
        ST->st_mode.

2000-07-26  Mark Kettenis  <kettenis@gnu.org>

        * Makefile (HURDLIBS): Reorder libs such that the threads lib
        comes before the ports lib.  This makes sure the functions in
        libthreads properly override the stubs in libports with the new
        dynamic linker semantics in glibc 2.2.

1999-09-13  Roland McGrath  <roland@baalperazim.frob.com>

        * io.c: Reverted changes related to io_map_segment.

1999-09-07  Thomas Bushnell, BSG  <tb@mit.edu>

        * io.c (S_io_map_segment): New function.

1999-07-11  Roland McGrath  <roland@baalperazim.frob.com>

        * sock.h: Add #include <sys/mman.h>.

1999-07-10  Roland McGrath  <roland@baalperazim.frob.com>

        * io.c: Add #include <sys/mman.h> for munmap decl.

1999-07-09  Thomas Bushnell, BSG  <tb@mit.edu>

        * pf.c (S_socket_whatis_address): Use mmap instead of vm_allocate.

1999-07-03  Thomas Bushnell, BSG  <tb@mit.edu>

        * io.c (TRASH_IDS): Use munmap instead of vm_deallocate.

1999-03-01  Mark Kettenis  <kettenis@gnu.org>

        * pf.c (S_socket_whatis_address): Implement.  Since we cannot tell
        what our adress is, return an empty string as the file name.

Tue Feb 16 05:52:35 1999  Thomas Bushnell, BSG  <tb@mit.edu>

        * io.c (S_io_revoke): New function.  Don't attempt to implement.
        (Other systems don't even permit non-file revokes.)

1998-10-20  Roland McGrath  <roland@baalperazim.frob.com>

        * io.c (S_io_select): Add braces to silence gcc warning.

1998-07-20  Roland McGrath  <roland@baalperazim.frob.com>

        * pflocal.c (main): Fix return type to int, and use return.

Wed Aug 20 14:06:11 1997  Thomas Bushnell, n/BSG  <thomas@gnu.ai.mit.edu>

        * pflocal.c (main): New args for
        ports_manage_port_operations_multithread.
        * sserver.c (handle_sock_requests): Likewise.

Mon Oct  7 12:53:24 1996  Miles Bader  <miles@gnu.ai.mit.edu>

        * connq.c (connq_listen): Unlock CQ->lock when returning EWOULDBLOCK.

Thu Sep 12 16:43:09 1996  Thomas Bushnell, n/BSG  <thomas@gnu.ai.mit.edu>

        * Makefile (HURDLIBS): New variable.
        (pflocal): Omit special dependency.

Tue Jul 23 19:44:29 1996  Miles Bader  <miles@gnu.ai.mit.edu>

        * sock.c (sock_create): Remove NEXT_SOCK_ID.

Sat Jul 13 20:20:55 1996  Michael I. Bushnell, p/BSG  <mib@gnu.ai.mit.edu>

        * io.c (S_io_reauthenticate): Repeat sock_create_port and
        auth_server_authenticate for as long as we get EINTR.

Sun Jul  7 21:30:33 1996  Michael I. Bushnell, p/BSG  <mib@gnu.ai.mit.edu>

        * io.c (S_io_reauthenticate): Don't use unsafe MOVE_SEND in call
        to auth_server_authenticate.

Mon Jul  1 18:45:35 1996  Miles Bader  <miles@gnu.ai.mit.edu>

        * sock.c (sock_create): Initialize ID field to MACH_PORT_NULL.

Thu Jun 27 17:58:09 1996  Michael I. Bushnell, p/BSG  <mib@gnu.ai.mit.edu>

        * Makefile (LCLHDRS): Add sserver.h.

Thu Jun 20 16:33:06 1996  Miles Bader  <miles@gnu.ai.mit.edu>

        * Makefile (pflocal): Depend on ../libfshelp/libfshelp.a.

Wed May 15 20:27:38 1996  Miles Bader  <miles@gnu.ai.mit.edu>

        * sock.c (sock_free): Destroy SOCK's id port if necessary.

Tue May 14 14:05:33 1996  Miles Bader  <miles@gnu.ai.mit.edu>

        * io.c (S_io_identity): New function.
        * sock.h (struct sock): Make the id field a receive right, not an int.

Thu May  9 20:20:20 1996  Michael I. Bushnell, p/BSG  <mib@gnu.ai.mit.edu>

        * io.c (S_io_reauthenticate): Use new auth_server_authenticate
        protocol.

Thu May  9 12:14:37 1996  Miles Bader  <miles@gnu.ai.mit.edu>

        * io.c (S_io_select): Remove TAG arg.

Mon Apr 15 12:52:32 1996  Michael I. Bushnell, p/BSG  <mib@gnu.ai.mit.edu>

        * Makefile (MIGSFLAGS): Look for mig-mutate.h in $(srcdir).

Fri Jan 26 16:46:37 1996  Miles Bader  <miles@gnu.ai.mit.edu>

        * socket.c (S_socket_recv): Test for MSG_OOB in IN_FLAGS, not FLAGS.
        Return EINVAL if we get MSG_OOB, not EOPNOTSUPP.

Thu Jan 25 17:34:50 1996  Miles Bader  <miles@gnu.ai.mit.edu>

        * sock.c (sock_create_port, addr_create): Use ports_create_port
        instead of ports_allocate_port.
        * pflocal.c (trivfs_goaway): Handle errors from
        ports_inhibit_bucket_rpcs.
        (thread_cancel): Function deleted.

Tue Jan 23 21:31:40 1996  Miles Bader  <miles@gnu.ai.mit.edu>

        * socket.c (S_socket_connect): Handle connectionless protocols
        correctly.

        * socket.c (S_socket_send): Allow DEST_ADDR to be null if the
        socket is connected.

        * sock.c (sock_bind): Don't change SOCK's ref count if we're
        returning an error.

Thu Jan  4 15:44:13 1996  Miles Bader  <miles@gnu.ai.mit.edu>

        * io.c (S_io_select): Reworked to avoid calling
        ports_interrupt_self_on_port_death() if there's data immediately
        available.  Also, don't block if we can return EOF/EPIPE.

Thu Dec 28 13:46:32 1995  Miles Bader  <miles@gnu.ai.mit.edu>

        * io.c (S_io_select): Use handy macro to avoid unthinkable line break.

Tue Dec 26 17:30:18 1995  Miles Bader  <miles@gnu.ai.mit.edu>

        * io.c (S_io_select): Add reply port parameter, and request
        notification if it dies.
        * mig-mutate.h (IO_SELECT_REPLY_PORT): New def.

Mon Nov 13 14:03:03 1995  Miles Bader  <miles@gnu.ai.mit.edu>

        * socket.c (S_socket_bind, S_socket_connect): Drop ADDR's send right.

Thu Nov  9 13:18:44 1995  Miles Bader  <miles@gnu.ai.mit.edu>

        * socket.c (S_socket_connect): Drop our reference to ADDR.

Sun Nov  5 10:01:15 1995  Miles Bader  <miles@gnu.ai.mit.edu>

        * pf.c (S_socket_create_address): Removing BINDING argument.

        * pflocal.c (main): Add FLAGS argument to trivfs_startup call.

Tue Sep 19 14:07:24 1995  Miles Bader  <miles@churchy.gnu.ai.mit.edu>

        * io.c (S_io_pathconf): New function.
        (S_io_set_all_openmodes, S_io_set_some_openmodes,
        S_io_clear_some_openmodes): The user specifies O_NONBLOCK, not
        SOCK_NONBLOCK.
        (S_io_get_openmodes): Always return O_APPEND.

Wed Sep  6 11:53:48 1995  Miles Bader  <miles@churchy.gnu.ai.mit.edu>

        * sserver.c (sock_demuxer): Use ports_interrupt_server and
        ports_notify_server instead of our own version.
        (do_mach_notify_no_senders, do_mach_notify_port_deleted,
        do_mach_notify_msg_accepted, do_mach_notify_port_destroyed,
        do_mach_notify_port_deleted, do_mach_notify_send_once,
        do_mach_notify_dead_name): Functions deleted.
        * io.c (S_interrupt_operation): Function deleted.
        * Makefile (MIGSTUBS): Remove notifyServer.o and interruptServer.o.

        * io.c (S_io_read, S_io_readable): Don't return EPIPE on EOF.

Tue Sep  5 14:22:18 1995  Miles Bader  <miles@churchy.gnu.ai.mit.edu>

        * io.c (S_io_stat): Only attempt to use the read pipe if it exists.

Thu Aug 31 16:31:18 1995  Miles Bader  <miles@churchy.gnu.ai.mit.edu>

        * io.c (S_io_select): Change the way selects are done, now that
        writes can block.
        (S_io_write): Pass in the new NOBLOCK parameter to pipe_write.
        * socket.c (S_socket_send): Pass in the new NOBLOCK parameter to
        pipe_send.

Tue Aug 29 14:33:14 1995  Miles Bader  <miles@geech.gnu.ai.mit.edu>

        * io.c (S_io_select): Use pipe_select instead of pipe_wait.

        * connq.c (struct connq): Remove interrupt_seq_num field.
        (connq_listen): Use hurd_condition_wait to detect interrupts
        instead of previous ad-hoc mechanism.
        (connq_interrupt, connq_interrupt_sock): Functions deleted.
        * connq.h (connq_interrupt, connq_interrupt_sock): Decls deleted.
        * io.c (S_interrupt_operation): Use ports_interrupt_rpc to
        interrupt waiting threads.

        * sock.c (sock_acquire_read_pipe, sock_acquire_write_pipe):
        `aquire' -> `acquire'.
        * socket.c (S_socket_send, S_socket_recv): Ditto.
        * sock.h: Ditto.

Tue Aug 29 14:30:59 1995  Roland McGrath  <roland@churchy.gnu.ai.mit.edu>

        * io.c (S_io_select): Fix typo in masking off SELECT_URG.
        Don't check open modes and return EBADF.

Thu Aug 24 10:35:58 1995  Miles Bader  <miles@churchy.gnu.ai.mit.edu>

        * Makefile (pflocal): Put all dependencies here.
        (OBJS): Remove error.o.
        (HURDLIBS): Removed.
        Removed all rules dealing with error.o.

Mon Aug 21 16:37:32 1995  Miles Bader  <miles@churchy.gnu.ai.mit.edu>

        * pflocal.c (trivfs_goaway, trivfs_modify_stat): Update arguments.

Fri Aug 11 15:33:28 1995  Miles Bader  <miles@churchy.gnu.ai.mit.edu>

        * sock.h (struct sock): Store the pipe class in a separate field,
        as READ_PIPE is no longer always defined.
        * sock.c (sock_create, sock_connect): Set/use the PIPE_CLASS field.
        (sock_connect, sock_aquire_write_pipe): Use pipe_aquire_writer
        instead of pipe_aquire.
        (sock_aquire_read_pipe): Use pipe_aquire_reader instead of
        pipe_aquire.  Handle the case where there is no read pipe (in
        which case return EPIPE).
        (sock_shutdown): Make shutting down the read half just like the
        write half -- the pipe goes away...
        (sock_create): Don't bump the read pipe ref count ourself.
        (sock_free): Use sock_shutdown to trash the read pipe too.

        * socket.c
        (S_socket_recv): Use pipe_release_reader instead of pipe_release.
        (S_socket_send): Use pipe_release_writer instead of pipe_release.
        (S_socket_recv): Reflect EPIPE as EOF.

        * io.c (S_io_read, S_interrupt_operation, S_io_readable, S_io_select):
        Use pipe_release_reader instead of pipe_release.
        (S_io_write): Use pipe_release_writer instead of pipe_release.
        (S_io_readable, S_io_read): Reflect EPIPE as EOF.

Mon Jul 31 13:59:15 1995  Miles Bader  <miles@churchy.gnu.ai.mit.edu>

        * connq.c (connq_compress): New function.
        (connq_interrupt_sock): Use connq_compress to compress the queue.

Sun Jul 30 10:30:24 1995  Miles Bader  <miles@duality.gnu.ai.mit.edu>

        * connq.c (connq_interrupt_sock): Reset CQ's tail to the end of
        the compressed queue.

Sat Jul 29 00:00:57 1995  Miles Bader  <miles@churchy.gnu.ai.mit.edu>

        * socket.c (S_socket_send): Only free SOURCE_ADDR if the send
        fails, as otherwise it's consumed; also free all the ports in
        PORTS if the send fails.

        * io.c (S_interrupt_operation): Allow socket trying to connect to
        be interrupted.
        * connq.c (connq_interrupt_sock): New function.
        * socket.c (S_socket_connect): Use the CONNECT_QUEUE field to
        allow only a single connection attempt at once.
        Check for already-connected sockets here instead of waiting for
        the final rendezvous.
        * connq.h (connq_interrupt_sock): New declaration.

        * connq.c (connq_listen, connq_connect, connq_interrupt,
        connq_set_length): Reverse the roles of the HEAD and TAIL fields,
        and make sure they're used correctly.
        (qprev): Deleted function.

        * sock.h (struct sock, all uses changed): Add the CONNECT_QUEUE
        field, and rename the CONNQ field to LISTEN_QUEUE.
        * sock.c (sock_create): Initialize the CONNECT_QUEUE field and
        rename CONNQ to LISTEN_QUEUE.

        * connq.c (connq_set_length): When shrinking the queue, actually
        do so, and don't leak memory.

        * socket.c (S_socket_connect): Return ECONNREFUSED when trying to
        connect to a non-existant address, instead of EADDRNOTAVAIL.

        * connq.c (struct connq): Add the INTERRUPT_SEQ_NUM field, used to
        detect interupts.
        (connq_listen): Detect when we get interrupted, and return EINTR.
        (connq_interrupt): New function.
        * connq.h (connq_interrupt): New declaration.
        * io.c (S_interrupt_operation): Call connq_interrupt when appropiate.

        * connq.c (connq_connect): Initialize REQ before using it.
        (connq_request_init): Swap the arguments.
        (connq_listen): Don't lock the accepted request just to get its sock.

        * socket.c (S_socket_connect): Actually use the connq operations
        to connect, like the listening socket is expecting, instead of
        connecting directly to it.