asio driver

The following is an example code of serial_port synchronous reading/writing to a serial port device: #include If you want to control the read/write timeout, the write method must be asynchronous. In addition, the scheduled code is added: boost::asio::deadline_timer timer(io);timer.expires_from_now(boost::posix_time::millisec(60000));timer.async_wait(boost::bind(boost::asio::serial_port::cancel, sp));

local socket). The network stack uses this state to knowWhich process to give each incoming packet to and what State to put in the header of each outgoing packet. The so-called connection is only a virtual pipeline consisting of some States saved by each endpoint of the connection. Through these statuses, the network stack knows to pass the incoming data packet to that process, and to put the status to the packet header of the sent data packet. Because of the underlying-inherently connectionle

HTTP Server Based on boost: ASIO----Blog, http://blog.csdn.net/shunqiziranhao007/article/details/8737629Date, January 1, March 29, 2013----This is an example of the boost ASIO Library (I modified some code to achieve the following effect), and implemented HTTP request packets and HTTP response packets of http1.0. Very interesting. ----HTTP----For details, see "Computer Network-top-down v4cn" p61.For more in

C + + Boost::asio programming-domain name resolution In the network communication, we usually do not use the IP address directly, but use the domain name. At this time we need to use the Reslover class to get the IP through the domain name, it can realizeURL resolution that is independent of the IP version. #include "stdafx.h" #include "boost/asio.hpp" #include "boost/shared_ptr.hpp" #include "boost/thread.hpp" #include l t;boost/lexical_cast.h

Code Network Collection modifies a small problem with a compilationClientClient.cpp: Defines the entry point of the console application. #include "stdafx.h" #include Service sideServer.cpp: Defines the entry point of the console application. #include "stdafx.h" #include 　　ASIO broadcast code example

After a day of simple learning, try to write a simple server, you can achieve the following three callback functions: OnConnect onMessage OnCloseThe code is posted directly below1.BaseServer Abstract classBaseServer.h/*name:baseserveruse:the basest Serverauthor:hezijian ([emailprotected]) */#ifdef _msc_ver#define _WIN32_WINNT 0x0501#endif#ifndef _base_server_h_#define _base_server_h_#include BaseServer.cpp#include "BaseServer.h" #include Description, Baseserver is an abstract class that must be

Before getting familiar with ASIO, familiarize yourself with the BSD socket C/S model. Client: #include "stdio.h"#include "stdlib.h"#include "netinet/in.h"#include "sys/socket.h"#include "sys/types.h"#include "sys/wait.h"#include "arpa/inet.h"int _clientsock;struct sockaddr_in c_addr;int main(){ _clientsock = socket(AF_INET,SOCK_STREAM,0); c_addr.sin_family=AF_INET; c_addr.sin_port=htons(6001); c_addr.sin_addr.s_addr=inet_

size2) (println "receive string succeeded, STR:" str-buffer) (quit-for-error) (exit) (dotimes (I 2000) (spawn 'ri (send-Test) (until (Sync 1000) (Exit) Note: 1. If you are interested in using newlistp for TCP communication, you can refer to my another article: http://blog.csdn.net/sheismylife/article/details/8521748 2. dotimes is a loop. The value range of I is [0, 2000) (Left closed and right open). A process is continuously created and each process runs the send-test function. Now let's take

Boost. asio Study Notes 1. Installation of the boost library in linux, boost. asioboost You are welcome to reprint it. Please enter the original address for reprinting.: Http://blog.csdn.net/majianfei1023/article/details/46761029 The first step to learn about open-source libraries is to compile and install the libraries, and then run a demo to complete subsequent work. The following describes how to install the boost library in linux. [Mjf @ localho

I have known myself for several recent exchanges in the industry. Network servers have been developed in windows for a long time, with a load of 1 K-2 k-4 K from a single PC, and the network performance is also gradually improved. However, most of the friends around me are developed in Linux, and I am very eye-catching. The first difference is the OS environment of the server, and the logic processing of MMORPG. In fact, a single OS is different, but it cannot be measured to compare the qual

The use of mingw to learn boost is a trigger. If you want to avoid detours, you should use the compilers that come with windows. Open-source Dongdong is really hard to see and trouble on Microsoft's platform. Let's talk about the compiling environment: win7 64-bit flagship edition, mingw 4.4, and boost 1.53. All the libraries are generated as static libraries (. a) The source file is the first example in the boost ASIO document. The file name is chan

I have studied ASIO for a long time. It's good! I don't want to talk much about the good words, but I think the author has made the Code a lot easier for cross-platform purposes, but this is also a last resort. This analysis only takes into account the implementation on the Windows platform. I will parse the entire design idea and key code for implementation, and then judge its advantages and disadvantages. I will remove what I think can be removed to

the task first If there is a task in the queue and a Epoll_wait listener event is required, the non-blocking call epoll_wait (the timeout field is set to 0) will be blocked on the epoll_wait until the task is executed. The use of the thread almost reached the extreme. From this function can be known, when using ASIO, Io_servie should be as many as possible, so that it can epoll_wait occupy the most time slices, so as to maximize the response to IO ev

Linux driver development focuses on content-from "embedded Linux driver template overview and project practices", embedded driver development This article is excerpted from my lecture on Embedded Linux driver templates and project practices. Initially, it seems that the development of Linux Device Drivers involves a lo

Android system transplantation and driver development-Chapter 6-use instances to understand Linux driver development and experiences, and android driver development The operating method of the Linux driver is interaction. For example, if you want to send a print command to the Linux printer

To install a driver under Windows, we need to pack all the software you need-called a driver package. The driver package includes the general installation tools provided by the system for all device classes, and includes device-specific components provided by the device vendor. Let's take a look at what components are specifically needed in the

Linux Device Driver category, character device driver, how to add cdev to the kernel ?, Driver category cdev 1. Linux Device Driver category By hardware of Managed Devices Character Device Access by byte streams, which can be accessed sequentially or at specified locations Touch screen LCD for serial port terminals Bl

Character Device Driver instance With the foundation of the previous section, I will learn how to compile a character device driver and test it on the client to verify whether the character device driver has been created successfully.1. Character Device Driver The following is the

Android system transplantation and driver development-Chapter 7-LED driver and android driver development Implementation principle of LED Driver Write LED driver: Before testing the LED driver, you need to use a USB data cable to

I. NIC Driver Installation My network adapter information: Network Adapter jmicron PCI Express Gigabit Ethernet Adapter Interface Type: Gigabit Ethernet Install the compilation tool gcc Download DRIVER: jme-1.0.7.tbz2 Step 1: Decompress jme-1.0.5.tbz2# Tar xjvf jme-1.0.7.tbz2 Step 2: Change directory to jme-1.0.5 # Cd jme-1.0.7 Step 3: Compile driver with roo