标签：异步多线程
曾经在上家公司做了一个内网P2P的传输工具名曰gingko
当时太菜了，网络部分写的很差，各种阻塞式网络通信
后来离职把memcached的代码研究了一下，感觉里面的网络模型非常先进
我就把memcached的网络部分抽取出来和gingko做了结合，写成了一个网络框架叫gko_pool
大致特性是：
完全异步化（包括DNS解析）
可以listen一个端口当server，也可以主动发起连接写client
worker是对等的多线程
内置一个简单的“内存池”
看代码发现memcached状态机有个逻辑上的bug 顺手给memcached提了个patch
后来这事就被淡忘了，过了两年被维护者发现合到master上了，维护者是这么说的：
Wow, two years old... and it looks correct to me. If that update_event fails the connection might zombie. It‘s very hard for that to fail and it‘s been that way forever.
Pushed a commit for the next release.
言归正传，可以毫不夸张的说memecached是多线程异步网络编程的一个丰碑（nginx是多进程异步网络编程的一个丰碑）
我就把memcached的网络部分抽取出来写成了一个网络框架叫gko_pool
https://github.com/auxten/gko_pool
举个栗子：http刷票器，在我的笔记本虚机上也能达到300KQPS，控制了一下速度，一不小心就把sina的服务器打挂了
/*
*
* Created on: May 18, 2012
* Author: auxten
*/
#include "gko.h"
#include <sys/time.h>
/// gingko global stuff
s_gingko_global_t gko;
pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
int cnt = 3;
int counter = 0;
void report_result(void * c, const char * msg)
{
GKOLOG(NOTICE, "%s", msg);
pthread_mutex_lock(&lock);
if (++counter == cnt)
{
printf("finished\n");
exit(0);
}
pthread_mutex_unlock(&lock);
}
int main(int argc, char** argv)
{
char cmd[2048];
gko.opt.to_debug = 0;
gko.ready_to_serv = 1;
gko.sig_flag = 0;
gko.opt.worker_thread = 8;
gko.opt.connlimit = SERV_POOL_SIZE;
// gko.opt.to_debug = 1;
gko_pool * gingko = gko_pool::getInstance();
gingko->setPort(-1);
gingko->setOption(&gko.opt);
// gingko->setProcessHandler(conn_send_data);
gingko->setReportHandler(report_result);
gingko->gko_run();
char ua[56][256] =
{
"Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20100101 Firefox/15.0.1",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.79 Safari/537.4",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.94 Safari/537.4",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/536.26.14 (KHTML, like Gecko) Version/6.0.1 Safari/536.26.14",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.89 Safari/537.1",
"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)",
"Mozilla/5.0 (Windows NT 5.1; rv:15.0) Gecko/20100101 Firefox/15.0.1",
"Mozilla/5.0 (Windows NT 6.1; rv:15.0) Gecko/20100101 Firefox/15.0.1",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.79 Safari/537.4",
"Mozilla/5.0 (Linux; U; Android 2.2; fr-fr; Desire_A8181 Build/FRF91) App3leWebKit/53.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1",
"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.79 Safari/537.4",
"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.94 Safari/537.4",
"Mozilla/5.0 (Windows NT 6.1; WOW64; rv:5.0) Gecko/20100101 Firefox/5.0",
"Mozilla/5.0 (Windows NT 6.0) AppleWebKit/535.1 (KHTML, like Gecko) Chrome/13.0.782.112 Safari/535.1",
"Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20100101 Firefox/16.0",
"Mozilla/4.0 (compatible; MSIE 6.0; MSIE 5.5; Windows NT 5.0) Opera 7.02 Bork-edition [en]",
"Mozilla/5.0 (Windows NT 6.1; rv:5.0) Gecko/20100101 Firefox/5.02",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.1 (KHTML, like Gecko) Chrome/13.0.782.112 Safari/535.1",
"Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.79 Safari/537.4",
"Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; .NET CLR 3.5.30729)",
"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322)",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; FunWebProducts; .NET CLR 1.1.4322; PeoplePal 6.2)",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; MRA 5.8 (build 4157); .NET CLR 2.0.50727; AskTbPTV/5.11.3.15590)",
"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)",
"Mozilla/5.0 (Windows NT 6.1; rv:2.0b7pre) Gecko/20100921 Firefox/4.0b7pre",
"Mozilla/5.0 (Windows NT 5.1; rv:5.0.1) Gecko/20100101 Firefox/5.0.1",
"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.94 Safari/537.4",
"Opera/9.80 (Windows NT 5.1; U; en) Presto/2.10.289 Version/12.01",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:15.0) Gecko/20100101 Firefox/15.0.1",
"Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A403 Safari/8536.25",
"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.89 Safari/537.1",
"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)",
"Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.94 Safari/537.4",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:15.0) Gecko/20100101 Firefox/15.0.1",
"Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.89 Safari/537.1",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/534.57.2 (KHTML, like Gecko) Version/5.1.7 Safari/534.57.2",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.92 Safari/537.4",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/536.26.14 (KHTML, like Gecko) Version/6.0.1 Safari/536.26.14",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.79 Safari/537.4",
"Mozilla/5.0 (Windows NT 5.1; rv:13.0) Gecko/20100101 Firefox/13.0.1",
"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:15.0) Gecko/20100101 Firefox/15.0.1",
"Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_4) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.89 Safari/537.1",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:15.0) Gecko/20100101 Firefox/15.0.1",
"Mozilla/5.0 (iPad; CPU OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A403 Safari/8536.25",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_4) AppleWebKit/536.25 (KHTML, like Gecko) Version/6.0 Safari/536.25",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_4) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.79 Safari/537.4",
"Mozilla/5.0 (Windows NT 5.1; rv:16.0) Gecko/20100101 Firefox/16.0",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.79 Safari/537.4",
"Mozilla/5.0 (iPad; CPU OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B206 Safari/7534.48.3",
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.94 Safari/537.4",
"Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:15.0) Gecko/20100101 Firefox/15.0.1",
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534+ (KHTML, like Gecko) BingPreview/1.0b",
"Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20100101 Firefox/14.0.1",
"Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20100101 Firefox/14.0.1",
};
char srv[3][32] =
{
"202.108.43.189",
"202.106.182.237",
"home"
};
int i = cnt;
while (i--)
{
struct timeval tv;
gettimeofday(&tv, NULL);
long t = tv.tv_usec;
sprintf(cmd,
"GET /Poll.php?project_id=5168&id=49 HTTP/1.%ld\r\n"
// "GET /Poll.php?project_id=5168&id=80 HTTP/1.%ld\r\n"
"Host: hi.video.sina.com.cn\r\n"
"User-Agent: %s\r\n"
"Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n"
"Accept-Language: zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3\r\n"
"DNT: 1\r\n"
"Client-IP: %ld.%ld.%ld.%ld\r\n"
"Connection: keep-alive\r\n"
"Referer: http://hi.video.sina.com.cn/you/2012banjiti/ph.php?dpc=1\r\n\r\n"
, t % 2,ua[t % 56], 122 + t % 20, 121 + (i + t) % 128, 24 + (i + t) % 135, 24 + (i + t) % 213);
gingko->make_active_connect(srv[i%3], 80, strlen(cmd), cmd, -1, -1, 0, 10);
// gingko->make_active_connect("61.30.127.2", 80, strlen(cmd), cmd, -1, -1, 0, 10);
}
sleep(10); //由于发请求时异步的，这里也没去处理response，sleep秒再退出
return 0;
}我为了刷票刷的真实，还写了这么多UserAgent，刷票界的良心啊，哈哈哈
更多例子，比如：一个自定义协议的client、server等请移步github
这套库的稳定性大家不用质疑，已经用在了我现在公司的上万台服务器的很多网络Daemon上
本文出自 “Reboot运维开发” 博客，请务必保留此出处http://opsdev.blog.51cto.com/2180875/1560499
标签：异步多线程
原文地址：http://opsdev.blog.51cto.com/2180875/1560499
