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#ifndef _THREAD_H_included
#define _THREAD_H_included
#ifdef __STDC__
#define _P(args) args
#else
#define _P(args) ()
#endif
void init_thread _P((void));
int start_new_thread _P((void (*)(void *), void *));
void exit_thread _P((void));
void _exit_thread _P((void));
typedef void *type_lock;
type_lock allocate_lock _P((void));
void free_lock _P((type_lock));
int acquire_lock _P((type_lock, int));
#define WAIT_LOCK 1
#define NOWAIT_LOCK 0
void release_lock _P((type_lock));
typedef void *type_sema;
type_sema allocate_sema _P((int));
void free_sema _P((type_sema));
void down_sema _P((type_sema));
void up_sema _P((type_sema));
void exit_prog _P((int));
void _exit_prog _P((int));
#undef _P
#endif
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