diff options
Diffstat (limited to 'startup/stubs.c')
| -rw-r--r-- | startup/stubs.c | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/startup/stubs.c b/startup/stubs.c deleted file mode 100644 index 5292ab68..00000000 --- a/startup/stubs.c +++ /dev/null @@ -1,139 +0,0 @@ -/* By-hand stubs for some RPC calls - Copyright (C) 1994,96,99,2000 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License as - published by the Free Software Foundation; either version 2, or (at - your option) any later version. - - This program is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include <stdlib.h> -#include <hurd/hurd_types.h> -#include <mach.h> -#include <string.h> -#include <assert.h> - -/* From hurd/msg.defs: */ -#define RPCID_SIG_POST 23000 - - -/* Send signal SIGNO to MSGPORT with REFPORT as reference. Don't - block in any fashion. */ -error_t -send_signal (mach_port_t msgport, - int signal, - mach_port_t refport, - mach_msg_timeout_t timeout) -{ - error_t err; - - /* This message buffer might be modified by mach_msg in some error cases, - so we cannot safely reuse a static buffer. */ - struct - { - mach_msg_header_t head; - mach_msg_type_t signaltype; - int signal; - mach_msg_type_t sigcode_type; - natural_t sigcode; - mach_msg_type_t refporttype; - mach_port_t refport; - } - message = - { - { - /* Message header: */ - (MACH_MSGH_BITS_COMPLEX - | MACH_MSGH_BITS (MACH_MSG_TYPE_COPY_SEND, - MACH_MSG_TYPE_MAKE_SEND_ONCE)), /* msgh_bits */ - sizeof message, /* msgh_size */ - msgport, /* msgh_remote_port */ - MACH_PORT_NULL, /* msgh_local_port */ - 0, /* msgh_seqno */ - RPCID_SIG_POST, /* msgh_id */ - }, - { - /* Type descriptor for signo */ - MACH_MSG_TYPE_INTEGER_32, /* msgt_name */ - 32, /* msgt_size */ - 1, /* msgt_number */ - 1, /* msgt_inline */ - 0, /* msgt_longform */ - 0, /* msgt_deallocate */ - 0, /* msgt_unused */ - }, - /* Signal number */ - signal, - /* Type descriptor for sigcode */ - { - MACH_MSG_TYPE_INTEGER_32, /* msgt_name */ - 32, /* msgt_size */ - 1, /* msgt_number */ - 1, /* msgt_inline */ - 0, /* msgt_longform */ - 0, /* msgt_deallocate */ - 0, /* msgt_unused */ - }, - /* Sigcode */ - 0, - { - /* Type descriptor for refport */ - MACH_MSG_TYPE_COPY_SEND, /* msgt_name */ - 32, /* msgt_size */ - 1, /* msgt_number */ - 1, /* msgt_inline */ - 0, /* msgt_longform */ - 0, /* msgt_deallocate */ - 0, /* msgt_unused */ - }, - /* Reference port */ - refport - }; - - err = mach_msg (&message.head, - MACH_SEND_MSG|MACH_SEND_TIMEOUT, sizeof message, 0, - MACH_PORT_NULL, timeout, MACH_PORT_NULL); - - switch (err) - { - case MACH_SEND_TIMED_OUT: - /* The send could not complete in time. In this error case, the - kernel has modified the message buffer in a pseudo-receive - operation. That means our COPY_SEND refs might now be MOVE_SEND - refs, in which case each has gained user ref accordingly. To - avoid leaking those refs, we must clean up the buffer. We don't - use mach_msg_destroy because it assumes the local/remote ports in - the header have been reversed as from a real receive, while a - pseudo-receive leaves them as they were. */ - if (MACH_MSGH_BITS_REMOTE (message.head.msgh_bits) - == MACH_MSG_TYPE_MOVE_SEND) - mach_port_deallocate (mach_task_self (), - message.head.msgh_remote_port); - if (message.refporttype.msgt_name == MACH_MSG_TYPE_MOVE_SEND) - mach_port_deallocate (mach_task_self (), message.refport); - break; - - /* These are the other codes that mean a pseudo-receive modified - the message buffer and we might need to clean up the send rights. - None of them should be possible in our usage. */ - case MACH_SEND_INTERRUPTED: - case MACH_SEND_INVALID_NOTIFY: - case MACH_SEND_NO_NOTIFY: - case MACH_SEND_NOTIFY_IN_PROGRESS: - assert_perror (err); - break; - - default: /* Other errors are safe to ignore. */ - break; - } - - return err; -} |