diff options
Diffstat (limited to 'libhurd-cap-server/class-init.c')
| -rw-r--r-- | libhurd-cap-server/class-init.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/libhurd-cap-server/class-init.c b/libhurd-cap-server/class-init.c deleted file mode 100644 index 150fa96..0000000 --- a/libhurd-cap-server/class-init.c +++ /dev/null @@ -1,180 +0,0 @@ -/* class-init.c - Initialize a capability class. - Copyright (C) 2004, 2005 Free Software Foundation, Inc. - Written by Marcus Brinkmann <marcus@gnu.org> - - This file is part of the GNU Hurd. - - This program is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this program; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#if HAVE_CONFIG_H -#include <config.h> -#endif - -#include <errno.h> -#include <assert.h> -#include <stdlib.h> -#include <pthread.h> - -#include <hurd/slab.h> -#include <hurd/cap-server.h> - - -/* Initialize the slab object pointed to by BUFFER. HOOK is as - provided to hurd_slab_create. */ -static error_t -_hurd_cap_obj_constructor (void *hook, void *buffer) -{ - hurd_cap_class_t cap_class = (hurd_cap_class_t) hook; - hurd_cap_obj_t obj = (hurd_cap_obj_t) buffer; - error_t err; - - /* First do our own initialization. */ - obj->cap_class = cap_class; - - err = pthread_mutex_init (&obj->lock, 0); - if (err) - return err; - - obj->refs = 1; - obj->state = _HURD_CAP_STATE_GREEN; - obj->pending_rpcs = NULL; - /* The member COND_WAITER does not need to be initialized. */ - obj->clients = NULL; - - /* Then do the user part, if necessary. */ - if (cap_class->obj_init) - { - err = (*cap_class->obj_init) (cap_class, obj); - if (err) - { - pthread_mutex_destroy (&obj->lock); - return err; - } - } - - return 0; -} - - -/* Destroy the slab object pointed to by BUFFER. HOOK is as provided - to hurd_slab_create. */ -static void -_hurd_cap_obj_destructor (void *hook, void *buffer) -{ - hurd_cap_class_t cap_class = (hurd_cap_class_t) hook; - hurd_cap_obj_t obj = (hurd_cap_obj_t) buffer; - - if (cap_class->obj_destroy) - (*cap_class->obj_destroy) (cap_class, obj); - - pthread_mutex_destroy (&obj->lock); -} - - -/* Same as hurd_cap_class_create, but doesn't allocate the storage for - CAP_CLASS. Instead, you have to provide it. */ -error_t -hurd_cap_class_init_untyped (hurd_cap_class_t cap_class, - size_t size, size_t alignment, - hurd_cap_obj_init_t obj_init, - hurd_cap_obj_alloc_t obj_alloc, - hurd_cap_obj_reinit_t obj_reinit, - hurd_cap_obj_destroy_t obj_destroy, - hurd_cap_class_demuxer_t demuxer) -{ - error_t err; - - /* The alignment requirements must be a power of 2. */ - assert ((alignment & (alignment - 1)) == 0 - || ! "hurd_cap_class_init_untyped: " - "requested alignment not a power of 2"); - - /* Find the smallest alignment requirement common to the user object - and a struct hurd_cap_obj. Since both are required to be a power - of 2, we need simply take the larger one. */ - if (alignment < __alignof__(struct hurd_cap_obj)) - alignment = __alignof__(struct hurd_cap_obj); - - size += hurd_cap_obj_user_offset (alignment); - - /* Capability object management. */ - - cap_class->obj_init = obj_init; - cap_class->obj_alloc = obj_alloc; - cap_class->obj_reinit = obj_reinit; - cap_class->obj_destroy = obj_destroy; - - err = hurd_slab_init (&cap_class->obj_space, size, alignment, NULL, NULL, - _hurd_cap_obj_constructor, _hurd_cap_obj_destructor, - cap_class); - if (err) - goto err_obj_space; - - err = pthread_cond_init (&cap_class->obj_cond, NULL); - if (err) - goto err_obj_cond; - - err = pthread_mutex_init (&cap_class->obj_cond_lock, NULL); - if (err) - goto err_obj_cond_lock; - - - /* Class management. */ - - cap_class->demuxer = demuxer; - - err = pthread_mutex_init (&cap_class->lock, NULL); - if (err) - goto err_lock; - - cap_class->state = _HURD_CAP_STATE_GREEN; - - err = pthread_cond_init (&cap_class->cond, NULL); - if (err) - goto err_cond; - - /* The cond_waiter member doesn't need to be initialized. It is - only valid when CAP_CLASS->STATE is _HURD_CAP_STATE_YELLOW. */ - - cap_class->pending_rpcs = NULL; - - /* FIXME: Add the class to the list of classes to be served by - RPCs. */ - - return 0; - - /* This is provided here in case you add more initialization to the - end of the above code. */ -#if 0 - pthread_cond_destroy (&cap_class->cond); -#endif - - err_cond: - pthread_mutex_destroy (&cap_class->lock); - - err_lock: - pthread_mutex_destroy (&cap_class->obj_cond_lock); - - err_obj_cond_lock: - pthread_cond_destroy (&cap_class->obj_cond); - - err_obj_cond: - /* This can not fail at this point. */ - hurd_slab_destroy (&cap_class->obj_space); - - err_obj_space: - return err; -} |