task Struct Reference
[generic]

Public Member Functions
	SPINLOCK_DECLARE (lock)
Data Fields
char *	name
thread_t *	main_thread
link_t	th_head
as_t *	as
task_id_t	taskid
bool	accept_new_threads
count_t	refcount
cap_t	capabilities
answerbox_t	answerbox
phone_t	phones [IPC_MAX_PHONES]
atomic_t	active_calls
task_arch_t	arch
mutex_t	futexes_lock
btree_t	futexes

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Detailed Description

Task structure.

Definition at line 49 of file task.h.

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Member Function Documentation

SPINLOCK_DECLARE (  lock   )

Task lock. Must be acquired before threads_lock and thread lock of any of its threads.

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Field Documentation

bool accept_new_threads

If this is true, new threads can become part of the task. Definition at line 63 of file task.h. Referenced by task_create(), task_kill(), and thread_create().

atomic_t active_calls

Active asynchronous messages. It is used for limiting uspace to certain extent. Definition at line 72 of file task.h. Referenced by task_create().

answerbox_t answerbox

Communication endpoint Definition at line 70 of file task.h. Referenced by task_create().

task_arch_t arch

Architecture specific task data. Definition at line 76 of file task.h. Referenced by ddi_iospace_enable_arch(), task_create_arch(), and task_destroy_arch().

as_t* as

Address space. Definition at line 59 of file task.h. Referenced by task_create(), and task_destroy().

cap_t capabilities

Task capabilities. Definition at line 67 of file task.h. Referenced by cap_get(), cap_set(), and task_create().

btree_t futexes

B+tree of futexes referenced by this task. Definition at line 83 of file task.h. Referenced by task_create(), and task_destroy().

mutex_t futexes_lock

Serializes access to the B+tree of task's futexes. This mutex is independent on the task spinlock. Definition at line 82 of file task.h. Referenced by task_create().

thread_t* main_thread

Pointer to the main thread. Definition at line 57 of file task.h. Referenced by task_create(), and thread_create().

char* name

Definition at line 56 of file task.h. Referenced by task_create().

phone_t phones[IPC_MAX_PHONES]

Definition at line 71 of file task.h. Referenced by ipc_print_task(), and task_create().

count_t refcount

Number of references (i.e. threads). Definition at line 65 of file task.h. Referenced by task_create(), task_kill(), and thread_create().

task_id_t taskid

Unique identity of task Definition at line 60 of file task.h. Referenced by task_create(), and task_kill().

link_t th_head

List of threads contained in this task. Definition at line 58 of file task.h. Referenced by task_create(), task_kill(), and thread_create().

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