MySQL 8.0.30
Source Code Documentation
os0thread.h File Reference

The interface to the operating system process and thread control primitives. More...

#include <atomic>
#include <cstring>
#include <functional>
#include <future>
#include <sstream>
#include <thread>
#include "ut0dbg.h"

Go to the source code of this file.

Classes

class  IB_thread
 
class  Atomic_xor_of_things< T_thing, T_digit >
 A class to allow any trivially copyable object to be XOR'ed. More...
 

Namespaces

namespace  ut
 This file contains a set of libraries providing overloads for regular dynamic allocation routines which allow for opt-in memory instrumentation through performance schema memory engine (PFS).
 

Typedefs

using os_thread_id_t = std::thread::native_handle_type
 Operating system thread native handle. More...
 
using Xor_digit_for_thread_id = std::conditional< sizeof(std::thread::id) >=sizeof(uint64_t), uint64_t, uint32_t >::type
 A type for std::thread::id digit to store XOR efficiently. More...
 
using Atomic_xor_of_thread_id = Atomic_xor_of_things< std::thread::id, Xor_digit_for_thread_id >
 A type to store XORed objects of type std::thread::id. More...
 

Functions

std::string to_string (std::thread::id thread_id, bool hex_value=false)
 Returns the string representation of the thread ID supplied. More...
 

Variables

const thread_local size_t ut::this_thread_hash
 The hash value of the current thread's id. More...
 

Detailed Description

The interface to the operating system process and thread control primitives.

Created 9/8/1995 Heikki Tuuri

Typedef Documentation

◆ Atomic_xor_of_thread_id

A type to store XORed objects of type std::thread::id.

◆ os_thread_id_t

using os_thread_id_t = std::thread::native_handle_type

Operating system thread native handle.

◆ Xor_digit_for_thread_id

using Xor_digit_for_thread_id = std::conditional<sizeof(std::thread::id) >= sizeof(uint64_t), uint64_t, uint32_t>::type

A type for std::thread::id digit to store XOR efficiently.

This will make the compiler to optimize the operations hopefully to single instruction.

Function Documentation

◆ to_string()

std::string to_string ( std::thread::id  thread_id,
bool  hex_value = false 
)

Returns the string representation of the thread ID supplied.

It uses the only standard-compliant way of printing the thread ID.

Parameters
thread_idThe thread ID to convert to string.
hex_valueIf true, the conversion will be asked to output in hexadecimal format. The support for it is OS-implementation-dependent and may be ignored.