93 строки
1.9 KiB
C
93 строки
1.9 KiB
C
/* thread_info.h: common low-level thread information accessors
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*
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* Copyright (C) 2002 David Howells (dhowells@redhat.com)
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* - Incorporating suggestions made by Linus Torvalds
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*/
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#ifndef _LINUX_THREAD_INFO_H
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#define _LINUX_THREAD_INFO_H
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/*
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* System call restart block.
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*/
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struct restart_block {
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long (*fn)(struct restart_block *);
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unsigned long arg0, arg1, arg2, arg3;
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};
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extern long do_no_restart_syscall(struct restart_block *parm);
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#include <linux/bitops.h>
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#include <asm/thread_info.h>
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#ifdef __KERNEL__
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/*
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* flag set/clear/test wrappers
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* - pass TIF_xxxx constants to these functions
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*/
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static inline void set_thread_flag(int flag)
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{
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set_bit(flag,¤t_thread_info()->flags);
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}
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static inline void clear_thread_flag(int flag)
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{
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clear_bit(flag,¤t_thread_info()->flags);
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}
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static inline int test_and_set_thread_flag(int flag)
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{
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return test_and_set_bit(flag,¤t_thread_info()->flags);
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}
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static inline int test_and_clear_thread_flag(int flag)
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{
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return test_and_clear_bit(flag,¤t_thread_info()->flags);
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}
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static inline int test_thread_flag(int flag)
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{
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return test_bit(flag,¤t_thread_info()->flags);
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}
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static inline void set_ti_thread_flag(struct thread_info *ti, int flag)
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{
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set_bit(flag,&ti->flags);
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}
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static inline void clear_ti_thread_flag(struct thread_info *ti, int flag)
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{
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clear_bit(flag,&ti->flags);
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}
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static inline int test_and_set_ti_thread_flag(struct thread_info *ti, int flag)
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{
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return test_and_set_bit(flag,&ti->flags);
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}
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static inline int test_and_clear_ti_thread_flag(struct thread_info *ti, int flag)
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{
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return test_and_clear_bit(flag,&ti->flags);
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}
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static inline int test_ti_thread_flag(struct thread_info *ti, int flag)
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{
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return test_bit(flag,&ti->flags);
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}
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static inline void set_need_resched(void)
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{
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set_thread_flag(TIF_NEED_RESCHED);
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}
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static inline void clear_need_resched(void)
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{
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clear_thread_flag(TIF_NEED_RESCHED);
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}
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#endif
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#endif /* _LINUX_THREAD_INFO_H */
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