Subversion Repositories HelenOS

Rev

Rev 2105 | Rev 2227 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 2105 Rev 2106
Line 56... Line 56...
56
 
56
 
57
/** Task structure. */
57
/** Task structure. */
58
typedef struct task {
58
typedef struct task {
59
    /** Task lock.
59
    /** Task lock.
60
     *
60
     *
61
     * Must be acquired before threads_lock and thread lock of any of its threads.
61
     * Must be acquired before threads_lock and thread lock of any of its
-
 
62
     * threads.
62
     */
63
     */
63
    SPINLOCK_DECLARE(lock);
64
    SPINLOCK_DECLARE(lock);
64
   
65
   
65
    char *name;
66
    char *name;
66
    struct thread *main_thread; /**< Pointer to the main thread. */
67
    /** Pointer to the main thread. */
-
 
68
    struct thread *main_thread;
67
    link_t th_head;     /**< List of threads contained in this task. */
69
    /** List of threads contained in this task. */
-
 
70
    link_t th_head;
68
    as_t *as;       /**< Address space. */
71
    /** Address space. */
-
 
72
    as_t *as;
69
    task_id_t taskid;   /**< Unique identity of task */
73
    /** Unique identity of task. */
-
 
74
    task_id_t taskid;
70
    context_id_t context;   /**< Task security context */
75
    /** Task security context. */
-
 
76
    context_id_t context;  
71
 
77
 
72
    /** If this is true, new threads can become part of the task. */
78
    /** If this is true, new threads can become part of the task. */
73
    bool accept_new_threads;
79
    bool accept_new_threads;
-
 
80
    /** Number of references (i.e. threads). */
-
 
81
    count_t refcount;  
74
 
82
 
75
    count_t refcount;   /**< Number of references (i.e. threads). */
83
    /** Task capabilities. */
76
 
-
 
77
    cap_t capabilities; /**< Task capabilities. */
84
    cap_t capabilities;
78
 
85
 
79
    /* IPC stuff */
86
    /* IPC stuff */
80
    answerbox_t answerbox;  /**< Communication endpoint */
87
    answerbox_t answerbox;  /**< Communication endpoint */
81
    phone_t phones[IPC_MAX_PHONES];
88
    phone_t phones[IPC_MAX_PHONES];
82
    atomic_t active_calls;  /**< Active asynchronous messages.
-
 
-
 
89
    /**
83
                 *   It is used for limiting uspace to
90
     * Active asynchronous messages. It is used for limiting uspace to
84
                 *   certain extent. */
91
     * certain extent.
-
 
92
     */
-
 
93
    atomic_t active_calls;  
85
   
94
   
86
    task_arch_t arch;   /**< Architecture specific task data. */
95
    /** Architecture specific task data. */
-
 
96
    task_arch_t arch;  
87
   
97
   
88
    /**
98
    /**
89
     * Serializes access to the B+tree of task's futexes. This mutex is
99
     * Serializes access to the B+tree of task's futexes. This mutex is
90
     * independent on the task spinlock.
100
     * independent on the task spinlock.
91
     */
101
     */
92
    mutex_t futexes_lock;
102
    mutex_t futexes_lock;
93
    btree_t futexes;    /**< B+tree of futexes referenced by this task. */
103
    /** B+tree of futexes referenced by this task. */
-
 
104
    btree_t futexes;   
94
   
105
   
95
    uint64_t cycles;    /**< Accumulated accounting. */
106
    /** Accumulated accounting. */
-
 
107
    uint64_t cycles;
96
} task_t;
108
} task_t;
97
 
109
 
98
SPINLOCK_EXTERN(tasks_lock);
110
SPINLOCK_EXTERN(tasks_lock);
99
extern btree_t tasks_btree;
111
extern btree_t tasks_btree;
100
 
112