thread storage containers

WINDOWS_35_THREAD_TLS Thread Local Storage // windows_35_Thread_Tls.cpp : 定义控制台应用程序的入口点。 // #include "stdafx.h" #include #include #include int g_AddVar = 0; CHAR *g_pszText1 = NULL; __declspec(thread)CHAR *g_pszText2 = NULL; void print( ) { //printf( "Text1:%s\n", g_pszText1 ); printf( "Text2:%s\n",

Python multi-thread crawler and multiple data storage methods (Python crawler practice 2), python Crawler1. multi-process Crawler For crawlers with a large amount of data, you can use a python multi-process or multi-thread mechanism to process the data. multi-process refers to allocating multiple CPU processing programs, only one CPU is working at a time. multith

What is Timelog?When we analyze the performance of the program, we add some logging information to record the time information of each part.The function of the Timelog module is to provide a unified interface to allow adding and saving loggingThe timelog we're using has several drawbacks.1. Fixed size, once full, can not join the new logging2. Each entry will have a global lock lock, which greatly affects the performanceThis two-day boost-based thread_specific_ptr and circular_buffer achieve an

Thread Local Storage (TLS) enables multiple threads of the same process to use an index allocated byTlsallocFunction to store and retrieve a value that is local to the thread. in this example, an index is allocated when the process starts. when each thread starts, it allocates a block of dynamic memory and stores a poi

InnoDB fully supports ACID transactions, row lock design, MVCC, consistent non-locked reads, and foreign key-> transaction security, and is suitable for OLTP applications (online transaction processing ).Mytrix ., inc. store more than 1 TB of data on InnoDB, some other sites process an average of 800 insert/update operations on InnoDB each time-> it proves that InnoDB is a high-performance, high-availability, and high-scalability storage engine.Transa

When using the Thread Local Storage (TLS) API, The tlsalloc () function call system will return an ID number smaller than tls_out_of_indexes, and then you can set or access data through this ID number, this ID number is generally a number between 1 and tls_out_of_indexes, but when you are running it, use application verifier to detectProgramIf the TLS under the Basic node of the tests option is checked, the

The example in this article describes the use of C + + thread local storage. Share to everyone for your reference. The specific methods are as follows: Copy Code code as follows: UseTLS.cpp: Defines the entry point for a console application. // #include "stdafx.h" #include #include Statement VOID Initstarttime (); DWORD Getusertime (); TLS index, as global variable DWORD G_dwtlsin