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diff --git a/innobase/include/os0thread.h b/innobase/include/os0thread.h
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-/******************************************************
-The interface to the operating system
-process and thread control primitives
-
-(c) 1995 Innobase Oy
-
-Created 9/8/1995 Heikki Tuuri
-*******************************************************/
-
-#ifndef os0thread_h
-#define os0thread_h
-
-#include "univ.i"
-
-/* Maximum number of threads which can be created in the program;
-this is also the size of the wait slot array for MySQL threads which
-can wait inside InnoDB */
-
-#define OS_THREAD_MAX_N srv_max_n_threads
-
-
-/* Possible fixed priorities for threads */
-#define OS_THREAD_PRIORITY_NONE 100
-#define OS_THREAD_PRIORITY_BACKGROUND 1
-#define OS_THREAD_PRIORITY_NORMAL 2
-#define OS_THREAD_PRIORITY_ABOVE_NORMAL 3
-
-#ifdef __WIN__
-typedef void* os_thread_t;
-typedef ulint os_thread_id_t; /* In Windows the thread id
- is an unsigned long int */
-#else
-typedef pthread_t os_thread_t;
-typedef os_thread_t os_thread_id_t; /* In Unix we use the thread
- handle itself as the id of
- the thread */
-#endif
-
-/* Define a function pointer type to use in a typecast */
-typedef void* (*os_posix_f_t) (void*);
-
-/*******************************************************************
-Compares two thread ids for equality. */
-
-ibool
-os_thread_eq(
-/*=========*/
- /* out: TRUE if equal */
- os_thread_id_t a, /* in: OS thread or thread id */
- os_thread_id_t b); /* in: OS thread or thread id */
-/********************************************************************
-Converts an OS thread id to a ulint. It is NOT guaranteed that the ulint is
-unique for the thread though! */
-
-ulint
-os_thread_pf(
-/*=========*/
- /* out: unsigned long int */
- os_thread_id_t a); /* in: thread or thread id */
-/********************************************************************
-Creates a new thread of execution. The execution starts from
-the function given. The start function takes a void* parameter
-and returns a ulint.
-NOTE: We count the number of threads in os_thread_exit(). A created
-thread should always use that to exit and not use return() to exit. */
-
-os_thread_t
-os_thread_create(
-/*=============*/
- /* out: handle to the thread */
-#ifndef __WIN__
- os_posix_f_t start_f,
-#else
- ulint (*start_f)(void*), /* in: pointer to function
- from which to start */
-#endif
- void* arg, /* in: argument to start
- function */
- os_thread_id_t* thread_id); /* out: id of the created
- thread */
-int
-os_thread_join(
-/*=============*/
- os_thread_id_t thread_id); /* in: id of the thread to join */
-/*********************************************************************
-Exits the current thread. */
-
-void
-os_thread_exit(
-/*===========*/
- void* exit_value); /* in: exit value; in Windows this void*
- is cast as a DWORD */
-/*********************************************************************
-Returns the thread identifier of current thread. */
-
-os_thread_id_t
-os_thread_get_curr_id(void);
-/*========================*/
-/*********************************************************************
-Returns handle to the current thread. */
-
-os_thread_t
-os_thread_get_curr(void);
-/*====================*/
-/*********************************************************************
-Advises the os to give up remainder of the thread's time slice. */
-
-void
-os_thread_yield(void);
-/*=================*/
-/*********************************************************************
-The thread sleeps at least the time given in microseconds. */
-
-void
-os_thread_sleep(
-/*============*/
- ulint tm); /* in: time in microseconds */
-/**********************************************************************
-Gets a thread priority. */
-
-ulint
-os_thread_get_priority(
-/*===================*/
- /* out: priority */
- os_thread_t handle);/* in: OS handle to the thread */
-/**********************************************************************
-Sets a thread priority. */
-
-void
-os_thread_set_priority(
-/*===================*/
- os_thread_t handle, /* in: OS handle to the thread */
- ulint pri); /* in: priority: one of OS_PRIORITY_... */
-/**********************************************************************
-Gets the last operating system error code for the calling thread. */
-
-ulint
-os_thread_get_last_error(void);
-/*==========================*/
-
-#ifndef UNIV_NONINL
-#include "os0thread.ic"
-#endif
-
-#endif