diff options
Diffstat (limited to 'task/task-class.c')
| -rw-r--r-- | task/task-class.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/task/task-class.c b/task/task-class.c deleted file mode 100644 index a80f241..0000000 --- a/task/task-class.c +++ /dev/null @@ -1,187 +0,0 @@ -/* task-class.c - Task class for the task server. - Copyright (C) 2003, 2004 Free Software Foundation, Inc. - Written by Marcus Brinkmann. - - This file is part of the GNU Hurd. - - The GNU Hurd 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. - - The GNU Hurd 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 the GNU C Library; 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 <stdlib.h> - -#include <l4.h> -#include <hurd/cap-server.h> -#include <hurd/wortel.h> - -#include "task.h" - - -static void -task_reinit (hurd_cap_class_t cap_class, hurd_cap_obj_t obj) -{ - task_t task = hurd_cap_obj_to_user (task_t, obj); - thread_t thread; - - thread = task->threads; - - /* Destroy all threads. */ - while (thread) - { - /* FIXME: We are ignoring an error here. */ - wortel_thread_control (thread->thread_id, l4_nilthread, l4_nilthread, - l4_nilthread, (void *) -1); - thread_dealloc (thread); - thread = thread->next; - } - - /* FIXME: Return the task ID to the list of free task IDs for future - allocation. */ -} - - -error_t -task_thread_alloc (hurd_cap_rpc_context_t ctx) -{ - task_t task = hurd_cap_obj_to_user (task_t, ctx->obj); - error_t err; - thread_t thread; - void *utcb; - l4_word_t result; - - /* Does not need to be checked. */ - utcb = (void *) l4_msg_word (ctx->msg, 1); - - err = thread_alloc (&thread); - if (err) - return err; - - thread->thread_id = l4_global_id (l4_thread_no (thread->thread_id), - task->task_id); - - /* Put the thread into the task as an active thread. FIXME: - Scheduler. */ - result = wortel_thread_control (thread->thread_id, task->threads->thread_id, - l4_myself (), thread->thread_id, utcb); - if (result) - { - /* FIXME: Convert error codes in wortel.h. */ - thread_dealloc (thread); - return EINVAL; - } - - thread->next = task->threads; - task->threads = thread; - task->nr_threads++; - - /* Prepare reply message. */ - l4_msg_clear (ctx->msg); - l4_msg_append_word (ctx->msg, thread->thread_id); - - return 0; -} - - -error_t -task_demuxer (hurd_cap_rpc_context_t ctx) -{ - error_t err = 0; - - switch (l4_msg_label (ctx->msg)) - { - /* TASK_THREAD_ALLOC */ - case 512: - err = task_thread_alloc (ctx); - break; - - default: - err = EOPNOTSUPP; - } - - return err; -} - - - -static struct hurd_cap_class task_class; - -/* Initialize the task class subsystem. */ -error_t -task_class_init () -{ - return hurd_cap_class_init (&task_class, task_t, - NULL, NULL, task_reinit, NULL, - task_demuxer); -} - - -/* Allocate a new task object with the task ID TASK_ID and the - NR_THREADS threads listed in THREADS (which are already allocated - for that task. The object returned is locked and has one - reference. */ -error_t -task_alloc (l4_word_t task_id, unsigned int nr_threads, - l4_thread_id_t *threads, task_t *r_task) -{ - error_t err; - hurd_cap_obj_t obj; - task_t task; - - err = hurd_cap_class_alloc (&task_class, &obj); - if (err) - return err; - task = hurd_cap_obj_to_user (task_t, obj); - - task->task_id = task_id; - - /* Add the threads from back to front. */ - task->threads = NULL; - - while (nr_threads--) - { - thread_t thread; - - err = thread_alloc_with_id (threads[nr_threads], &thread); - if (err) - { - /* Roll back the thread creation manually to defeat the - automatic deallocation routines, which will actually go - and kill those wortel-provided threads. */ - thread = task->threads; - while (thread) - { - thread->thread_id = l4_nilthread; - thread_dealloc (thread); - thread = thread->next; - } - - task->threads = NULL; - task->nr_threads = 0; - hurd_cap_obj_drop (obj); - - return err; - } - - thread->next = task->threads; - task->threads = thread; - } - task->nr_threads = nr_threads; - - *r_task = task; - return 0; -} |