8158 Want named threads API
9857 proc manpages should have LIBRARY section

*** 22,31 ****
--- 22,35 ----
  /*
   * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
+ /*
+  * Copyright 2018 Joyent, Inc.
+  */
+ 
  #ifndef _SYS_THREAD_H
  #define _SYS_THREAD_H
  
  
  #include <sys/types.h>
*** 343,352 ****
--- 347,358 ----
  #endif
          hrtime_t        t_hrtime;       /* high-res last time on cpu */
          kmutex_t        t_ctx_lock;     /* protects t_ctx in removectx() */
          struct waitq    *t_waitq;       /* wait queue */
          kmutex_t        t_wait_mutex;   /* used in CV wait functions */
+ 
+         char            *t_name;        /* thread name */
  } kthread_t;
  
  /*
   * Thread flag (t_flag) definitions.
   *      These flags must be changed only for the current thread,
*** 587,600 ****
--- 593,611 ----
  extern disp_lock_t transition_lock;     /* lock protecting transiting threads */
  extern disp_lock_t stop_lock;           /* lock protecting stopped threads */
  
  caddr_t thread_stk_init(caddr_t);       /* init thread stack */
  
+ int thread_setname(kthread_t *, const char *);
+ int thread_vsetname(kthread_t *, const char *, ...);
+ 
  extern int default_binding_mode;
  
  #endif  /* _KERNEL */
  
+ #define THREAD_NAME_MAX 32      /* includes terminating NUL */
+ 
  /*
   * Macros to indicate that the thread holds resources that could be critical
   * to other kernel threads, so this thread needs to have kernel priority
   * if it blocks or is preempted.  Note that this is not necessary if the
   * resource is a mutex or a writer lock because of priority inheritance.