os0thread.cc File Reference

#include "os0thread.h"
#include "srv0srv.h"
#include "os0sync.h"

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Functions
UNIV_INTERN ibool	os_thread_eq (os_thread_id_t a, os_thread_id_t b)
UNIV_INTERN ulint	os_thread_pf (os_thread_id_t a)
UNIV_INTERN os_thread_id_t	os_thread_get_curr_id (void)
UNIV_INTERN os_thread_t	os_thread_create_func (os_thread_func_t func, void *arg, os_thread_id_t *thread_id)
UNIV_INTERN void	os_thread_exit (void *exit_value)
UNIV_INTERN void	os_thread_yield (void)
UNIV_INTERN void	os_thread_sleep (ulint tm)

Detailed Description

The interface to the operating system thread control primitives

Created 9/8/1995 Heikki Tuuri

Definition in file os0thread.cc.

Function Documentation

UNIV_INTERN os_thread_t os_thread_create_func	(	os_thread_func_t	func,
		void *	arg,
		os_thread_id_t *	thread_id
	)

Creates a new thread of execution. The execution starts from the function given. The start function takes a void* parameter and returns an ulint.

Returns

handle to the thread

Parameters

func	in: pointer to function from which to start
arg	in: argument to start function
thread_id	out: id of the created thread, or NULL

Definition at line 108 of file os0thread.cc.

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UNIV_INTERN ibool os_thread_eq	(	os_thread_id_t	a,
		os_thread_id_t	b
	)

Compares two thread ids for equality.

Returns

TRUE if equal

Parameters

a	in: OS thread or thread id
b	in: OS thread or thread id

Definition at line 44 of file os0thread.cc.

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UNIV_INTERN void os_thread_exit

(

void *

exit_value

)

Exits the current thread.

Parameters

exit_value

in: exit value; in Windows this void* is cast as a DWORD

Definition at line 192 of file os0thread.cc.

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UNIV_INTERN os_thread_id_t os_thread_get_curr_id

(

void

)

Returns the thread identifier of current thread. Currently the thread identifier in Unix is the thread handle itself. Note that in HP-UX pthread_t is a struct of 3 fields.

Returns

current thread identifier

Definition at line 91 of file os0thread.cc.

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UNIV_INTERN ulint os_thread_pf

(

os_thread_id_t

a

)

Converts an OS thread id to a ulint. It is NOT guaranteed that the ulint is unique for the thread though!

Returns

thread identifier as a number

Parameters

a	in: OS thread identifier

Definition at line 70 of file os0thread.cc.

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UNIV_INTERN void os_thread_sleep

(

ulint

tm

)

The thread sleeps at least the time given in microseconds.

Parameters

tm	in: time in microseconds

Definition at line 243 of file os0thread.cc.

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UNIV_INTERN void os_thread_yield

(

void

)

Advises the os to give up remainder of the thread's time slice.

Definition at line 222 of file os0thread.cc.

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