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#define THREAD_FLAG_WIRED   (1 << 0)
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#define THREAD_FLAG_WIRED   (1 << 0)
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/** Thread was migrated to another CPU and has not run yet. */
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/** Thread was migrated to another CPU and has not run yet. */
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#define THREAD_FLAG_STOLEN  (1 << 1)
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#define THREAD_FLAG_STOLEN  (1 << 1)
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/** Thread executes in userspace. */
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/** Thread executes in userspace. */
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#define THREAD_FLAG_USPACE  (1 << 2)
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#define THREAD_FLAG_USPACE  (1 << 2)
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/** Thread will be attached by the caller. */
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#define THREAD_FLAG_NOATTACH    (1 << 3)
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/** Thread states. */
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/** Thread states. */
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typedef enum {
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typedef enum {
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    /** It is an error, if thread is found in this state. */
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    /** It is an error, if thread is found in this state. */
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    Invalid,
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    Invalid,
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extern btree_t threads_btree;
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extern btree_t threads_btree;
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extern void thread_init(void);
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extern void thread_init(void);
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extern thread_t *thread_create(void (* func)(void *), void *arg, task_t *task,
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extern thread_t *thread_create(void (* func)(void *), void *arg, task_t *task,
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    int flags, char *name, bool uncounted);
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    int flags, char *name, bool uncounted);
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extern void thread_attach(thread_t *t, task_t *task);
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extern void thread_ready(thread_t *t);
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extern void thread_ready(thread_t *t);
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extern void thread_exit(void) __attribute__((noreturn));
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extern void thread_exit(void) __attribute__((noreturn));
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#ifndef thread_create_arch
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#ifndef thread_create_arch
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extern void thread_create_arch(thread_t *t);
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extern void thread_create_arch(thread_t *t);