ACE--第一印象
先下载了个ACE-5.7.4.tar.gz，放到Linux上，解压，然后./configure; make; make install
时间会比较长
然后抄了个简单的server和client的代码， 链接的时候要加-lACE：
<ace/INET_Addr.h>提供了 ACE_INET_Addr 主要是协议族的表示
<ace/SOCK_Acceptor.h>是为了使用 ACE_SOCK_Acceptor，这是server端必须的
<ace/SOCK_Connector.h> 就是客户端的要使用的 ACE_SOCK_Connector
<ace/SOCK_Stream.h> 是为了使用 ACE_SOCK_Stream，类似于文件描述符，accept将其与一新建连接绑定，可以直接读写数据
<ace/OS_main.h>提供统一的使用系统调用和库函数的方式，比如exit，strlen， atoi
<ace/Log_Msg.h> 提供ACE自带的一套丰富的Log打印
peer_acceptor_初始化一个端口就好了，不用socket，bind一大堆的，
然后accept，这时传入一个 new_stream_，如果成功返回，则可以对这个 new_stream_读写了。用send_n/recv_n完成
由于make install的时候默认将库安装在了/usr/local/lib/目录下，所有运行时有可能出错，
解决的办法是export LD_LIBRARY_PATH ；或者将这个目录写到/etc/ld.so.conf 后运行ldconfig
[test@test ace]$ ./Server 8080
./Server: error while loading shared libraries: libACE-5.7.4.so: cannot open shared object file: No such file or directory
[test@test ace]$ ls /usr/local/lib/libACE-5.7.4.so -lh
-rwxr-xr-x 1 root root 11M 11-09 16:03 /usr/local/lib/libACE-5.7.4.so
[test@test ace]$ export $LD_LIBRARY_PATH= /usr/local/lib/
#include <ace/SOCK_Acceptor.h> #include <ace/SOCK_Stream.h> #include <ace/OS_main.h> #include <ace/Log_Msg.h> #define SIZE_DATA 18 #define SIZE_BUF 1024 #define NO_ITERATIONS 5 class Server { public: Server(int port) : server_addr_(port), peer_acceptor_(server_addr_) { data_buf_ = new char[SIZE_BUF]; } int handle_connection() { for( int i = 0 ; i < NO_ITERATIONS ; ++i ) { int byte_count = 0; if( (byte_count = new_stream_.recv_n(data_buf_, SIZE_BUF, 0)) == -1 ) { ACE_ERROR((LM_ERROR, "%p/n", "Error in recv")); } else { data_buf_[byte_count] = 0; ACE_DEBUG((LM_DEBUG, "Server receiver %s /n", data_buf_)); } } if( new_stream_.close() == -1 ) { ACE_ERROR((LM_ERROR, "%p/n", "close")); } return 0; } int accept_connections() { if( peer_acceptor_.get_local_addr(server_addr_) == -1 ) { ACE_ERROR_RETURN((LM_ERROR, "%p/n", "Error in get_local_addr"), 1); } ACE_DEBUG((LM_DEBUG, "Starting server at port %d/n", server_addr_.get_port_number())); while( 1 ) { ACE_Time_Value timeout(ACE_DEFAULT_TIMEOUT * 10); if( peer_acceptor_.accept(new_stream_, &client_addr_, &timeout) == -1 ) { ACE_ERROR((LM_ERROR, "%p/n", "accept")); continue; } else { ACE_DEBUG((LM_DEBUG, "Connection established with remote %s:%d/n", client_addr_.get_host_name(), client_addr_.get_port_number())); handle_connection(); } } } private: char *data_buf_; ACE_INET_Addr server_addr_; ACE_INET_Addr client_addr_; ACE_SOCK_Acceptor peer_acceptor_; ACE_SOCK_Stream new_stream_; }; int main(int argc, char *argv[]) { if( argc < 2 ) { ACE_ERROR((LM_ERROR, "Usage %s <port_num>/n", argv[0])); ACE_OS::exit(1); } Server server(ACE_OS::atoi(argv[1])); server.accept_connections(); }
#include <ace/SOCK_Connector.h> #include <ace/INET_Addr.h> #include <ace/OS_main.h> #include <ace/Log_Msg.h> #define SIZE_BUF 128 #define NO_ITERATIONS 5 class Client { public: Client(char *hostname, int port) : remote_addr_(port, hostname) { data_buf_ = "Hello from Client"; } int connect_to_server() { ACE_DEBUG((LM_DEBUG, "(%P|%t) Starting connect to %s:%d/n", remote_addr_.get_host_name(), remote_addr_.get_port_number())); if( connector_.connect(client_stream_, remote_addr_) == -1 ) { ACE_ERROR_RETURN((LM_ERROR, "%P|%t) %p/n", "connection failed"), -1); } else { ACE_DEBUG((LM_DEBUG, "(%P|%t) connected to %s/n", remote_addr_.get_host_name())); return 0; } } int send_to_server() { for( int i = 0 ; i < NO_ITERATIONS ; ++i ) { if( client_stream_.send_n(data_buf_, ACE_OS::strlen(data_buf_) + 1, 0) == -1 ) { ACE_ERROR_RETURN((LM_ERROR, "(%P|%t) %p/n", "send_n"), 0); break; } } close(); } int close() { if( client_stream_.close() == -1 ) { ACE_ERROR_RETURN((LM_ERROR, "(%P|%t) %p/n", "close"), -1); } else { return 0; } } private: char *data_buf_; ACE_INET_Addr remote_addr_; ACE_SOCK_Connector connector_; ACE_SOCK_Stream client_stream_; }; int main(int argc, char *argv[]) { if( argc < 3 ) { ACE_ERROR((LM_ERROR, "Usage %s <hostname> <port_num>/n", argv[0])); ACE_OS::exit(1); } Client client(argv[1], ACE_OS::atoi(argv[2])); client.connect_to_server(); client.send_to_server(); return 0; }