[client-manet.c] send to
[(MASTER) handle_client(void *arg) IN server-manet.c] send to
[(MASTER) m_thread(void *arg) IN server-manet.c] send to
[(SLAVE) slave(void *arg) IN server-manet-slave.c]
启动顺序:
[root@localhost server-client-pthread-c]# ./server-manet
[root@localhost server-client-pthread-c]# ./server-manet-slave
[root@localhost server-client-pthread-c]# ./client-manet
++++++++++++++++++++++++++++++++++++++++++++++
在CORE中测试时:
1. 在每个节点的主目录创建文件: ctrl.txt, masterip.txt, hosts,
根据batman-adv协议,选择 主节点,其它为从节点;要修改 上面3个文件的值
[client-manet.c] send to
[(MASTER) handle_client(void *arg) IN server-manet.c] send to
[(MASTER) m_thread(void *arg) IN server-manet.c] send to
[(SLAVE) slave(void *arg) IN server-manet.c]
点击(此处)折叠或打开
- //********************
client-manet.c
- int main(int argc, char
*argv[])
- {
- masterip <- read from masterip.txt; //global
variable, echo 1.1.1.1
>masterip.txt
- connect(sock, masterip);
- CHK(send(sock,
"running process, update database", strlen("running process, update database"),
0));
- }
- //******************** client-manet.c
点击(此处)折叠或打开
- //********************
server-manet.c
- int ctrl; //global variable
- int changed=0;
- int pipe_fd[2];
- char *masterip;
- char *self_ip;
- //read
* from client-manet.c
- //模拟 流程执行,数据库更新的事件,事件驱动 数据库同步
- void *handle_client(void
*arg)
- {
- bind(listener, self_ip);
- int pipe_write
= *((int
*)arg);
- while (1)
{
- CHK2(client, accept(listener,
(struct sockaddr *)&peer,
&socklen));
- while
(1) {
- CHK2(len, recv(client, clientmsg,
CLIENTMSG_SIZE, MSG_NOSIGNAL));
- CHK(write(pipe_write, clientmsg, strlen(clientmsg))); //send
MSG to m_thread(void
*arg)
- }
- }
- }
- int main(int argc, char
*argv[])
- {
- sprintf(self_ip,"%s",getipaddress("enp13s0"));
- pthread_create(&readctrl,
NULL, read_ctrl,
NULL);
- pthread_create(&writer,
NULL, handle_client,
(void *)&pipe_fd[1]);
- while (1)
{
- pthread_create(&tid,
NULL, master,
NULL); //ctrl==1
- or
- pthread_create(&tid,
NULL, slave,
NULL); //ctrl==0
- }
- }
- void *read_ctrl(void
*arg)
- {
- while (1)
{
- ctrl <- read from ctrl.txt; //global
variable, echo 1
>ctrl.txt
- masterip <- read from masterip.txt; //global
variable, echo 1.1.1.1
>masterip.txt
- master_ip = ip2uint(getipaddress(masterip));
- if (master_ip!=prev_ip)
{
- replaceline(hosts, line,
"masterip mpe.localhost"); //update hosts
- }
- }
- }
- void *slave(void
*arg)
- {
- connect(sock, masterip);
- while (1)
- {
- if (changed) break;
- recv(sock, buf, BUF_SIZE, MSG_NOSIGNAL); //read
* from master
- }
- }
- void *master(void
*arg)
- {
- sprintf(self_ip,"%s",getipaddress("enp13s0"));
- bind(listener, self_ip);
- while (1)
{
- if (changed) break;
- CHK2(client, accept(listener,
(struct sockaddr *)&peer,
&socklen));
- int rt
= pthread_create(&reader,
NULL, m_thread,
(void *)&client);
- }
- }
- //event_driven, read pipe_fd[0] from handle_client(void
*arg) which read
* from client-manet.c
- void *m_thread(void
*arg)
- {
- int client
= *((int
*)arg);
- CHK(epoll_ctl(epfd, EPOLL_CTL_ADD, pipe_fd[0],
&ev));
- //使用epoll模拟 流程执行,数据库更新的事件,事件驱动 数据库同步
- while (1)
{ //communication between master
& slave
- if (changed) break;
- if((epoll_events_count
= epoll_wait(epfd, events, 1, EPOLL_RUN_TIMEOUT))
< 0){
- sleep(1);
- continue;
- }
- for (int i
= 0; i
< epoll_events_count; i++)
{
- if
(events[i].data.fd
== pipe_fd[0]) //管道读端,从client-manet.c接受信息
- {
- CHK2(res, read(pipe_fd[0],
clientmsg, CLIENTMSG_SIZE));
- CHK(send(client,
"synchronous data", strlen("synchronous data"),
MSG_NOSIGNAL));
- }
- }
- }
- }
- //******************** server-manet.c
点击(此处)折叠或打开
- //********************
server-manet-slave.c
- int main(int argc, char
*argv[])
- {
- sprintf(self_ip,"%s",getipaddress("enp13s0"));
- pthread_create(&readctrl,
NULL, read_ctrl,
NULL);
- while (1)
{
- pthread_create(&tid,
NULL, slave,
NULL);
- pthread_join(tid,
&tret);
- } //end
while
- }
- void *read_ctrl(void
*arg)
- {
- char filename[6]
= "hosts"; //set master_ip
in /etc/hosts
- uint32_t me_ip = ip2uint(getipaddress("enp13s0"));
- while (1)
{
- ctrl <- read from ctrl_slave.txt; //global
variable, echo 0
>ctrl_slave.txt
- masterip <- read from masterip.txt; //global
variable, echo 1.1.1.1
>masterip.txt
- master_ip = ip2uint(getipaddress(masterip));
- if (master_ip!=prev_ip)
{
- replaceline(hosts, line,
"masterip mpe.localhost"); //update hosts
- }
- }
- }
- void *slave(void
*arg)
- {
- connect(sock, masterip);
- while (1)
- {
- if (changed) break;
- recv(sock, buf, BUF_SIZE, MSG_NOSIGNAL));
- }
- }
- //******************** server-manet-slave.c
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