Ubuntu Server 12.10 上安装 Node.js, ZeroMQ
Node.js是一个基于google v8+javascript的服务端编程框架。对于搞云计算,用Node.js,来做系统管理Web站点是非常合适的。理由是:
1)足够简单。
2)足够快。
3)足够小巧。
4)前后端一致性。
好,下面是安装步骤:
首先确保系统安装了Python, gcc, g++,如果没有则安装:
$ sudo apt-get install python
$ sudo apt-get install build-essential
$ sudo apt-get install gcc
$ sudo apt-get install g++
下载最新版源代码包:node-v0.8.14.tar.gz
解压:
$ sudo tar -zxf node-v0.8.14.tar.gz
$ cd node-v0.8.14
(一) 默认方式安装:
$ ./configure
$ make
$ sudo make install
(二) 选择目录方式安装:
$ ./configure --prefix=/opt/node
$ make -j 3 # 3=CPU核数+1
$ sudo make install
安装结束后, 用下面的命令检查安装的版本:
$ node --version
v0.8.14
zeromq是一个基于c的消息队列编程框架。zeromq用处很多, 它具有:
1)足够简单。
2)足够快。
3)足够小巧。
等优点. 下面是安装步骤:
下载: zero-3.2.1
http://www.zeromq.org/
$ tar -xzf zeromq-3.2.1.tar.gz
$ ./configure
$ make
$ sudo make install
$ sudo ldconfig
下面写一个客户端和一个服务端测试:
mqclient.c
- //
- // Hello World client
- // Connects REQ socket to tcp://localhost:5555
- // Sends "Hello" to server, expects "World" back
- //
- #include <zmq.h>
- #include <string.h>
- #include <stdio.h>
- #include <unistd.h>
- int main (void)
- {
- void *context = zmq_ctx_new ();
- // Socket to talk to server
- printf ("Connecting to hello world server…\n");
- void *requester = zmq_socket (context, ZMQ_REQ);
- zmq_connect (requester, "tcp://localhost:5555");
- int request_nbr;
- for (request_nbr = 0; request_nbr != 10; request_nbr++) {
- zmq_msg_t request;
- zmq_msg_init_data (&request, "Hello", 6, 0, 0);
- printf ("Sending Hello %d…\n", request_nbr);
- zmq_msg_send (&request, requester, 0);
- zmq_msg_close (&request);
- printf ("prepare recv message\n");
- zmq_msg_t reply;
- zmq_msg_init (&reply);
- if (-1==zmq_msg_recv (&reply, requester, 0)) {
- printf("recv data error.\n");
- }
- printf ("Received World %d\n", request_nbr);
- zmq_msg_close (&reply);
- }
- zmq_close (requester);
- zmq_ctx_destroy (context);
- return 0;
- }
mqserver.c
- //
- // Hello World server
- // Binds REP socket to tcp://*:5555
- // Expects "Hello" from client, replies with "World"
- //
- #include <zmq.h>
- #include <stdio.h>
- #include <unistd.h>
- #include <string.h>
- int main (void)
- {
- int ret;
- char buf[5]="world";
- buf[5] = 0;
- void *context = zmq_ctx_new ();
- // Socket to talk to clients
- void *responder = zmq_socket (context, ZMQ_REP);
- ret = zmq_bind (responder, "tcp://*:5555");
- if (ret==0) {
- printf("zmq_bind success\n");
- } else {
- printf("zmq_bind error=%d:%s\n", ret, strerror(errno));
- exit(ret);
- }
- while (1==1) {
- // Wait for next request from client
- printf("wait for clients...\n");
- zmq_msg_t request;
- zmq_msg_init (&request);
- ret = zmq_msg_recv (&request, responder, 0);
- printf ("Received=%d\n", ret);
- zmq_msg_close (&request);
- // Do some 'work'
- sleep (1);
- // Send reply back to client
- zmq_msg_t reply;
- zmq_msg_init_data (&reply, buf, 6, 0, 0);
- ret = zmq_msg_send (&reply, responder, 0);
- printf("zmq_msg_send ret=%d\n", ret);
- zmq_msg_close (&reply);
- }
- // We never get here but if we did, this would be how we end
- zmq_close (responder);
- zmq_ctx_destroy (context);
- return 0;
- }
下面是编译命令:
$ gcc mqclient.c -o mqclnt -lzmq
$ gcc mqserver.c -o mqsrvr -lzmq
运行:
$ ./mqsrvr &
$ ./mqclnt
结束!