WebSVN – HelenOS – Diff – /trunk/kernel/generic/include/proc/task.h

 /*
  * Copyright (c) 2001-2004 Jakub Jermar
  * All rights reserved.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
+ *
  * - Redistributions of source code must retain the above copyright
  *   notice, this list of conditions and the following disclaimer.
  * - Redistributions in binary form must reproduce the above copyright
  *   notice, this list of conditions and the following disclaimer in the
  *   documentation and/or other materials provided with the distribution.
  * - The name of the author may not be used to endorse or promote products
  *   derived from this software without specific prior written permission.
+ *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 /** @addtogroup genericproc
  * @{
  */
 /** @file
  */
 #ifndef KERN_TASK_H_
 #define KERN_TASK_H_
 #include <cpu.h>
+#include <ipc/ipc.h>
 #include <synch/spinlock.h>
 #include <synch/mutex.h>
 #include <synch/rwlock.h>
 #include <synch/futex.h>
 #include <adt/btree.h>
 #include <adt/list.h>
 #include <security/cap.h>
 #include <arch/proc/task.h>
 #include <arch/proc/thread.h>
 #include <arch/context.h>
 #include <arch/fpu_context.h>
 #include <arch/cpu.h>
 #include <mm/tlb.h>
 #include <proc/scheduler.h>
-#define IPC_MAX_PHONES  16
-struct answerbox;
-struct task;
 struct thread;
-typedef enum {
-    IPC_PHONE_FREE = 0,     /**< Phone is free and can be allocated */
-    IPC_PHONE_CONNECTING,   /**< Phone is connecting somewhere */
-    IPC_PHONE_CONNECTED,    /**< Phone is connected */
-    IPC_PHONE_HUNGUP,   /**< Phone is hung up, waiting for answers to come */
-    IPC_PHONE_SLAMMED       /**< Phone was hungup from server */
-} ipc_phone_state_t;
-/** Structure identifying phone (in TASK structure) */
-typedef struct {
-    SPINLOCK_DECLARE(lock);
-    link_t link;
-    struct answerbox *callee;
-    ipc_phone_state_t state;
-    atomic_t active_calls;
-} phone_t;
-typedef struct answerbox {
-    SPINLOCK_DECLARE(lock);
-    struct task *task;
-    waitq_t wq;
-    link_t connected_phones;    /**< Phones connected to this answerbox */
-    link_t calls;           /**< Received calls */
-    link_t dispatched_calls;    /* Should be hash table in the future */
-    link_t answers;         /**< Answered calls */
-    SPINLOCK_DECLARE(irq_lock);
-    link_t irq_notifs;          /**< Notifications from IRQ handlers */
-    link_t irq_head;        /**< IRQs with notifications to this answerbox. */
-} answerbox_t;
 /** Task structure. */
 typedef struct task {
     /** Task lock.
+     *
      * Must be acquired before threads_lock and thread lock of any of its threads.
      */
     SPINLOCK_DECLARE(lock);
     char *name;
     struct thread *main_thread; /**< Pointer to the main thread. */
     link_t th_head;     /**< List of threads contained in this task. */
     as_t *as;       /**< Address space. */
     task_id_t taskid;   /**< Unique identity of task */
     context_id_t context;   /**< Task security context */
     /** If this is true, new threads can become part of the task. */
     bool accept_new_threads;
     count_t refcount;   /**< Number of references (i.e. threads). */
     cap_t capabilities; /**< Task capabilities. */
     /* IPC stuff */
     answerbox_t answerbox;  /**< Communication endpoint */
     phone_t phones[IPC_MAX_PHONES];
     atomic_t active_calls;  /**< Active asynchronous messages.
                  *   It is used for limiting uspace to
                  *   certain extent. */
     task_arch_t arch;   /**< Architecture specific task data. */
     /**
      * Serializes access to the B+tree of task's futexes. This mutex is
      * independent on the task spinlock.
      */
     mutex_t futexes_lock;
     btree_t futexes;    /**< B+tree of futexes referenced by this task. */
     uint64_t cycles;    /**< Accumulated accounting. */
 } task_t;
 SPINLOCK_EXTERN(tasks_lock);
 extern btree_t tasks_btree;
 extern void task_init(void);
 extern task_t *task_create(as_t *as, char *name);
 extern void task_destroy(task_t *t);
 extern task_t *task_run_program(void *program_addr, char *name);
 extern task_t *task_find_by_id(task_id_t id);
 extern int task_kill(task_id_t id);
 extern uint64_t task_get_accounting(task_t *t);
 extern void cap_set(task_t *t, cap_t caps);
 extern cap_t cap_get(task_t *t);
 #ifndef task_create_arch
 extern void task_create_arch(task_t *t);
 #endif
 #ifndef task_destroy_arch
 extern void task_destroy_arch(task_t *t);
 #endif
 extern unative_t sys_task_get_id(task_id_t *uspace_task_id);
 #endif
 /** @}
  */

Subversion Repositories HelenOS

(root)/trunk/kernel/generic/include/proc/task.h – Rev 2103 → 2105