单次发送单次接收
下面的程序使用Proactor模式用UDP通信:
(1)发送端发送一个复合消息,并打印发送的内容
(2)接收端接收一个复合消息并打印接收到的内容
由于UDP是无连接的,所以这里没有Connector和Acceptor
本例是对ACE自带的example的稍微修改了一下(打印发送和接收的内容,这样更加直观)
发送端:client_main.cpp
- #include
- #include
- #include
- #include
- #include
- using namespace std;
- #include "ace/Reactor.h"
- #include "ace/Message_Queue.h"
- #include "ace/Asynch_IO.h"
- #include "ace/OS.h"
- #include "ace/Proactor.h"
- #include "ace/Asynch_Connector.h"
- #include
- //=============================================================================
- /**
- * @file test_udp_proactor.cpp
- *
- * $Id: test_udp_proactor.cpp 93639 2011-03-24 13:32:13Z johnnyw $
- *
- * This program illustrates how the can be used to
- * implement an application that does asynchronous operations using
- * datagrams.
- *
- *
- * @author Irfan Pyarali and Roger Tragin
- */
- //=============================================================================
- #include "ace/OS_NS_string.h"
- #include "ace/OS_main.h"
- #include "ace/Proactor.h"
- #include "ace/Asynch_IO.h"
- #include "ace/INET_Addr.h"
- #include "ace/SOCK_Dgram.h"
- #include "ace/Message_Block.h"
- #include "ace/Get_Opt.h"
- #include "ace/Log_Msg.h"
- // Keep track of when we're done.
- static int done = 0;
- /**
- * @class Sender
- *
- * @brief The class will be created by .
- */
- class Sender : public ACE_Handler
- {
- public:
- Sender (void);
- ~Sender (void);
- //FUZZ: disable check_for_lack_ACE_OS
- ///FUZZ: enable check_for_lack_ACE_OS
- int open (const ACE_TCHAR *host, u_short port);
- protected:
- // These methods are called by the freamwork
- /// This is called when asynchronous writes from the dgram socket
- /// complete
- virtual void handle_write_dgram (const ACE_Asynch_Write_Dgram::Result &result);
- private:
- /// Network I/O handle
- ACE_SOCK_Dgram sock_dgram_;
- /// wd (write dgram): for writing to the socket
- ACE_Asynch_Write_Dgram wd_;
- const char* completion_key_;
- const char* act_;
- };
- Sender::Sender (void)
- : completion_key_ ("Sender completion key"),
- act_ ("Sender ACT")
- {
- }
- Sender::~Sender (void)
- {
- this->sock_dgram_.close ();
- }
- int
- Sender::open (const ACE_TCHAR *host,
- u_short port)
- {
- // Initialize stuff
- if (this->sock_dgram_.open (ACE_INET_Addr::sap_any) == -1)
- ACE_ERROR_RETURN ((LM_ERROR,
- "[%D][line:%l]%p\n",
- "ACE_SOCK_Dgram::open"), -1);
- // Initialize the asynchronous read.
- if (this->wd_.open (*this,
- this->sock_dgram_.get_handle (),
- this->completion_key_,
- ACE_Proactor::instance ()) == -1)
- ACE_ERROR_RETURN ((LM_ERROR,
- "[%D][line:%l]%p\n",
- "ACE_Asynch_Write_Dgram::open"), -1);
- // We are using scatter/gather to send the message header and
- // message body using 2 buffers
- // create a message block for the message header
- ACE_Message_Block* msg = 0;
- ACE_NEW_RETURN (msg, ACE_Message_Block (100), -1);
- const char raw_msg [] = "To be or not to be.";
- // Copy buf into the Message_Block and update the wr_ptr ().
- msg->copy (raw_msg, ACE_OS::strlen (raw_msg) + 1);
- // create a message block for the message body
- ACE_Message_Block* body = 0;
- ACE_NEW_RETURN (body, ACE_Message_Block (100), -1);
- ACE_OS::memset (body->wr_ptr (), 'X', 100);
- body->wr_ptr (100); // always remember to update the wr_ptr ()
- // set body as the cont of msg. This associates the 2 message blocks so
- // that a send will send the first block (which is the header) up to
- // length (), and use the cont () to get the next block to send. You can
- // chain up to IOV_MAX message block using this method.
- msg->cont (body);
- // do the asynch send
- size_t number_of_bytes_sent = 0;
- ACE_INET_Addr serverAddr (port, host);
- int res = this->wd_.send (msg, number_of_bytes_sent, 0, serverAddr, this->act_);
- ACE_Message_Block* p = 0;
- p= msg;
- switch (res)
- {
- case 0:
- // this is a good error. The proactor will call our handler when the
- // send has completed.
- break;
- case 1:
- // actually sent something, we will handle it in the handler callback
- ACE_DEBUG ((LM_DEBUG, "********************\n"));
- ACE_DEBUG ((LM_DEBUG,
- "%s = %d\n",
- "bytes sent immediately",
- number_of_bytes_sent));
- while (p != NULL)
- {
- ACE_DEBUG ((LM_DEBUG,"YOU SEND[%s]\n",p->rd_ptr()));
- p = p->cont();
- }
- ACE_DEBUG ((LM_DEBUG, "********************\n"));
- res = 0;
- break;
- case -1:
- // Something else went wrong.
- ACE_ERROR ((LM_ERROR,
- "[%D][line:%l]%p\n",
- "ACE_Asynch_Write_Dgram::recv"));
- // the handler will not get called in this case so lets clean up our msg
- msg->release ();
- break;
- default:
- // Something undocumented really went wrong.
- ACE_ERROR ((LM_ERROR,
- "[%D][line:%l]%p\n",
- "ACE_Asynch_Write_Dgram::recv"));
- msg->release ();
- break;
- }
- return res;
- }
- void
- Sender::handle_write_dgram (const ACE_Asynch_Write_Dgram::Result &result)
- {
- ACE_DEBUG ((LM_DEBUG,
- "handle_write_dgram called\n"));
- ACE_DEBUG ((LM_DEBUG, "********************\n"));
- ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "bytes_to_write", result.bytes_to_write ()));
- ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "handle", result.handle ()));
- ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "bytes_transfered", result.bytes_transferred ()));
- ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "flags", result.flags ()));
- ACE_DEBUG ((LM_DEBUG, "%s = %s\n", "act", result.act ()));
- ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "success", result.success ()));
- ACE_DEBUG ((LM_DEBUG, "%s = %s\n", "completion_key", result.completion_key ()));
- ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "error", result.error ()));
- ACE_DEBUG ((LM_DEBUG, "********************\n"));
- ACE_DEBUG ((LM_DEBUG,
- "Sender completed\n"));
- // No need for this message block anymore.
- result.message_block ()->release ();
- // Note that we are done with the test.
- done++;
- }
- int
- ACE_TMAIN (int argc, ACE_TCHAR *argv[])
- {
- //ACE_LOG_MSG->clr_flags(0);
- //ACE_LOG_MSG->set_flags(ACE_Log_Msg::STDERR | ACE_Log_Msg::VERBOSE);
- Sender sender;
- // Port that we're receiving connections on.
- u_short port = ACE_DEFAULT_SERVER_PORT;
- // Host that we're connecting to.
- string host("localhost");
- if (sender.open (host.c_str(), port) == -1)
- return -1;
- while (true)
- {
- ACE_Proactor::instance ()->handle_events ();
- }
- return 0;
- }
接收端server_main.cpp
- #include "ace/OS_NS_string.h"
- #include "ace/OS_main.h"
- #include "ace/Proactor.h"
- #include "ace/Asynch_IO.h"
- #include "ace/INET_Addr.h"
- #include "ace/SOCK_Dgram.h"
- #include "ace/Message_Block.h"
- #include "ace/Get_Opt.h"
- #include "ace/Log_Msg.h"
- // Host that we're connecting to.
- static ACE_TCHAR *host = 0;
- // Port that we're receiving connections on.
- static u_short port = ACE_DEFAULT_SERVER_PORT;
- // Keep track of when we're done.
- static int done = 0;
- /**
- * @class Receiver
- *
- * @brief This class will receive data from
- * the network connection and dump it to a file.
- */
- class Receiver : public ACE_Service_Handler
- {
- public:
- // = Initialization and termination.
- Receiver (void);
- ~Receiver (void);
- int open_addr (const ACE_INET_Addr &localAddr);
- protected:
- // These methods are called by the framework
- /// This method will be called when an asynchronous read completes on
- /// a UDP socket.
- virtual void handle_read_dgram (const ACE_Asynch_Read_Dgram::Result &result);
- private:
- ACE_SOCK_Dgram sock_dgram_;
- /// rd (read dgram): for reading from a UDP socket.
- ACE_Asynch_Read_Dgram rd_;
- const char* completion_key_;
- const char* act_;
- };
- Receiver::Receiver (void)
- : completion_key_ ("Receiver Completion Key"),
- act_ ("Receiver ACT")
- {
- }
- Receiver::~Receiver (void)
- {
- sock_dgram_.close ();
- }
- int
- Receiver::open_addr (const ACE_INET_Addr &localAddr)
- {
- ACE_DEBUG ((LM_DEBUG,
- "[%D][line:%l]Receiver::open_addr called\n"));
- // Create a local UDP socket to receive datagrams.
- if (this->sock_dgram_.open (localAddr) == -1)
- ACE_ERROR_RETURN ((LM_ERROR,
- "[%D][line:%l]%p\n",
- "ACE_SOCK_Dgram::open"), -1);
- // Initialize the asynchronous read.
- if (this->rd_.open (*this,
- this->sock_dgram_.get_handle (),
- this->completion_key_,
- ACE_Proactor::instance ()) == -1)
- ACE_ERROR_RETURN ((LM_ERROR,
- "[%D][line:%l]%p\n",
- "ACE_Asynch_Read_Dgram::open"), -1);
- // Create a buffer to read into. We are using scatter/gather to
- // read the message header and message body into 2 buffers
- // create a message block to read the message header
- ACE_Message_Block* msg = 0;
- ACE_NEW_RETURN (msg, ACE_Message_Block (1024), -1);
- // the next line sets the size of the header, even though we
- // allocated a the message block of 1k, by setting the size to 20
- // bytes then the first 20 bytes of the reveived datagram will be
- // put into this message block.
- msg->size (20); // size of header to read is 20 bytes
- // create a message block to read the message body
- ACE_Message_Block* body = 0;
- ACE_NEW_RETURN (body, ACE_Message_Block (1024), -1);
- // The message body will not exceed 1024 bytes, at least not in this test.
- // set body as the cont of msg. This associates the 2 message
- // blocks so that a read will fill the first block (which is the
- // header) up to size (), and use the cont () block for the rest of
- // the data. You can chain up to IOV_MAX message block using this
- // method.
- msg->cont (body);
- // ok lets do the asynch read
- size_t number_of_bytes_recvd = 0;
- int res = rd_.recv (msg,
- number_of_bytes_recvd,
- 0,
- PF_INET,
- this->act_);
- switch (res)
- {
- case 0:
- // this is a good error. The proactor will call our handler when the
- // read has completed.
- break;
- case 1:
- // actually read something, we will handle it in the handler callback
- ACE_DEBUG ((LM_DEBUG, "********************\n"));
- ACE_DEBUG ((LM_DEBUG,
- "%s = %d\n",
- "bytes recieved immediately",
- number_of_bytes_recvd));
- ACE_DEBUG ((LM_DEBUG, "********************\n"));
- res = 0;
- break;
- case -1:
- // Something else went wrong.
- ACE_ERROR ((LM_ERROR,
- "[%D][line:%l]%p\n",
- "ACE_Asynch_Read_Dgram::recv"));
- // the handler will not get called in this case so lets clean up our msg
- msg->release ();
- break;
- default:
- // Something undocumented really went wrong.
- ACE_ERROR ((LM_ERROR,
- "[%D][line:%l]%p\n",
- "ACE_Asynch_Read_Dgram::recv"));
- msg->release ();
- break;
- }
- return res;
- }
- void
- Receiver::handle_read_dgram (const ACE_Asynch_Read_Dgram::Result &result)
- {
- ACE_DEBUG ((LM_DEBUG,
- "handle_read_dgram called\n"));
- ACE_DEBUG ((LM_DEBUG, "********************\n"));
- ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "bytes_to_read", result.bytes_to_read ()));
- ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "handle", result.handle ()));
- ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "bytes_transfered", result.bytes_transferred ()));
- ACE_INET_Addr peerAddr;
- result.remote_address (peerAddr);
- ACE_DEBUG ((LM_DEBUG, "%s = %s:%d\n", "peer_address", peerAddr.get_host_addr (), peerAddr.get_port_number ()));
- ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "flags", result.flags ()));
- ACE_DEBUG ((LM_DEBUG, "%s = %s\n", "act", result.act ()));
- ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "success", result.success ()));
- ACE_DEBUG ((LM_DEBUG, "%s = %s\n", "completion_key", result.completion_key ()));
- ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "error", result.error ()));
- ACE_DEBUG ((LM_DEBUG, "********************\n"));
- if (result.success () && result.bytes_transferred () != 0)
- {
- // loop through our message block and print out the contents
- for (const ACE_Message_Block* msg = result.message_block (); msg != 0; msg = msg->cont ())
- { // use msg->length () to get the number of bytes written to the message
- // block.
- ACE_DEBUG ((LM_DEBUG, "Buf=[size=", msg->length ()));
- for (u_long i = 0; i length (); ++i)
- ACE_DEBUG ((LM_DEBUG,
- "%c", (msg->rd_ptr ())[i]));
- ACE_DEBUG ((LM_DEBUG, "]\n"));
- }
- }
- ACE_DEBUG ((LM_DEBUG,
- "Receiver completed\n"));
- // No need for this message block anymore.
- result.message_block ()->release ();
- // Note that we are done with the test.
- done++;
- }
- int
- ACE_TMAIN (int argc, ACE_TCHAR *argv[])
- {
- //ACE_LOG_MSG->set_flags(ACE_Log_Msg::STDERR | ACE_Log_Msg::VERBOSE);
- Receiver receiver;
- if (receiver.open_addr (ACE_INET_Addr (port)) == -1)
- return -1;
- while (true)
- {
- ACE_Proactor::instance ()->handle_events ();
- }
- return 0;
- }
先运行接收端,再运行发送端,你懂的。
发送端程序运行结果:
接收端运行结果:
程序的功能:
(1)UDP发送内容到P1,IP2,...,IPn(地址列表从文件读取) (1)发送内容从文件中读取; (1)发送时间间隔从文件中读取;
- //=============================================================================
- /**
- * @file test_udp_proactor.cpp
- *
- * $Id: test_udp_proactor.cpp 93639 2011-03-24 13:32:13Z johnnyw $
- *
- * This program illustrates how the can be used to
- * implement an application that does asynchronous operations using
- * datagrams.
- *
- *
- * @author Irfan Pyarali and Roger Tragin
- */
- //=============================================================================
- #include
- #include
- #include
- #include
- #include
- using namespace std;
- //#include "ace/Reactor.h"
- #include "ace/Message_Queue.h"
- #include "ace/Asynch_IO.h"
- #include "ace/OS.h"
- #include "ace/Proactor.h"
- #include "ace/Asynch_Connector.h"
- #include
- #include "ace/OS_NS_string.h"
- #include "ace/OS_main.h"
- #include "ace/INET_Addr.h"
- #include "ace/SOCK_Dgram.h"
- #include "ace/Message_Block.h"
- #include "ace/Get_Opt.h"
- #include "ace/Log_Msg.h"
- #include "ace/Event_Handler.h"
- #include "ace/Date_Time.h"
- #include "ace/WIN32_Proactor.h"
- namespace global
- {
- int delay = 2;
- //int interval = 60*10;//每interval 秒计时一次
- int interval = 2;//每interval 秒计时一次
- void print_current_time(void)
- {
- ACE_Date_Time date(ACE_OS::gettimeofday());
- cout
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