release/src/router/mysql/storage/innobase/include/thr0loc.h

   1 /******************************************************
   2 The thread local storage
   3
   4 (c) 1995 Innobase Oy
   5
   6 Created 10/5/1995 Heikki Tuuri
   7 *******************************************************/
   8
   9 /* This module implements storage private to each thread,
  10 a capability useful in some situations like storing the
  11 OS handle to the current thread, or its priority. */
  12
  13 #ifndef thr0loc_h
  14 #define thr0loc_h
  15
  16 #include "univ.i"
  17 #include "os0thread.h"
  18
  19 /********************************************************************
  20 Initializes the thread local storage module. */
  21
  22 void
  23 thr_local_init(void);
  24 /*================*/
  25 /***********************************************************************
  26 Creates a local storage struct for the calling new thread. */
  27
  28 void
  29 thr_local_create(void);
  30 /*==================*/
  31 /***********************************************************************
  32 Frees the local storage struct for the specified thread. */
  33
  34 void
  35 thr_local_free(
  36 /*===========*/
  37         os_thread_id_t  id);    /* in: thread id */
  38 /***********************************************************************
  39 Gets the slot number in the thread table of a thread. */
  40
  41 ulint
  42 thr_local_get_slot_no(
  43 /*==================*/
  44                                 /* out: slot number */
  45         os_thread_id_t  id);    /* in: thread id of the thread */
  46 /***********************************************************************
  47 Sets in the local storage the slot number in the thread table of a thread. */
  48
  49 void
  50 thr_local_set_slot_no(
  51 /*==================*/
  52         os_thread_id_t  id,     /* in: thread id of the thread */
  53         ulint           slot_no);/* in: slot number */
  54 /***********************************************************************
  55 Returns pointer to the 'in_ibuf' field within the current thread local
  56 storage. */
  57
  58 ibool*
  59 thr_local_get_in_ibuf_field(void);
  60 /*=============================*/
  61                         /* out: pointer to the in_ibuf field */
  62
  63 #ifndef UNIV_NONINL
  64 #include "thr0loc.ic"
  65 #endif
  66
  67 #endif