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defined generic socket class for both TCP and UDP, inherited by MySocketTCP - send receive funcs should still be implemented

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git-svn-id: file:///afs/psi.ch/project/sls_det_software/svn/slsDetectorSoftware@332 951219d9-93cf-4727-9268-0efd64621fa3
This commit is contained in:
bergamaschi
2012-10-31 11:56:01 +00:00
parent 3f1780f71b
commit 50beac1f8a
5 changed files with 413 additions and 270 deletions
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206
slsDetectorSoftware/MySocketTCP/MySocketTCP.cxx
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@ -5,219 +5,13 @@
#include "MySocketTCP.h"
#include <string.h>
#include <iostream>
#include <math.h>
#include <errno.h>
#include <cstdio>
using namespace std;
MySocketTCP::~MySocketTCP(){
Disconnect();
if (socketDescriptor >= 0){
close(socketDescriptor);
}
file_des=-1;
}
MySocketTCP::MySocketTCP(unsigned short int const port_number):portno(DEFAULT_PORTNO), is_a_server(1), socketDescriptor(-1), file_des(-1), send_rec_max_size(SEND_REC_MAX_SIZE), last_keep_connection_open_action_was_a_send(0)
{ // receiver (server) local no need for ip
portno=port_number;
strcpy(hostname,"localhost");
// SetupParameters();
socketDescriptor = socket(AF_INET, SOCK_STREAM,0); //tcp
if (socketDescriptor < 0) {
cerr << "Can not create socket "<<endl;
} else {
// Set some fields in the serverAddress structure.
serverAddress.sin_family = AF_INET;
serverAddress.sin_addr.s_addr = htonl(INADDR_ANY);
serverAddress.sin_port = htons(port_number);
if(bind(socketDescriptor,(struct sockaddr *) &serverAddress,sizeof(serverAddress))<0){
cerr << "Can not bind socket "<<endl;
socketDescriptor=-1;
} else {
listen(socketDescriptor, 5);
}
}
}
MySocketTCP::MySocketTCP(const char* const host_ip_or_name, unsigned short int const port_number):portno(DEFAULT_PORTNO), is_a_server(0), socketDescriptor(-1),file_des(-1), send_rec_max_size(SEND_REC_MAX_SIZE), last_keep_connection_open_action_was_a_send(0)
{ // sender (client): where to? ip
// SetupParameters();
strcpy(hostname,host_ip_or_name);
portno=port_number;
struct hostent *hostInfo = gethostbyname(host_ip_or_name);
if (hostInfo == NULL){
cerr << "Exiting: Problem interpreting host: " << host_ip_or_name << "\n";
} else {
// Set some fields in the serverAddress structure.
serverAddress.sin_family = hostInfo->h_addrtype;
memcpy((char *) &serverAddress.sin_addr.s_addr,
hostInfo->h_addr_list[0], hostInfo->h_length);
serverAddress.sin_port = htons(port_number);
socketDescriptor=0; //You can use send and recv, //would it work?????
}
}
int MySocketTCP::getHostname(char *name) {
if (is_a_server==0) {
strcpy(name,hostname);
}
return is_a_server;
};
int MySocketTCP::Connect(){
if(file_des>0) return file_des;
if(is_a_server){ //server; the server will wait for the clients connection
if (socketDescriptor>0) {
if ((file_des = accept(socketDescriptor,(struct sockaddr *) &clientAddress, &clientAddress_length)) < 0) {
cerr << "Error: with server accept, connection refused"<<endl;
switch(errno) {
case EWOULDBLOCK:
printf("ewouldblock eagain\n");
break;
case EBADF:
printf("ebadf\n");
break;
case ECONNABORTED:
printf("econnaborted\n");
break;
case EFAULT:
printf("efault\n");
break;
case EINTR:
printf("eintr\n");
break;
case EINVAL:
printf("einval\n");
break;
case EMFILE:
printf("emfile\n");
break;
case ENFILE:
printf("enfile\n");
break;
case ENOTSOCK:
printf("enotsock\n");
break;
case EOPNOTSUPP:
printf("eOPNOTSUPP\n");
break;
case ENOBUFS:
printf("ENOBUFS\n");
break;
case ENOMEM:
printf("ENOMEM\n");
break;
case ENOSR:
printf("ENOSR\n");
break;
case EPROTO:
printf("EPROTO\n");
break;
default:
printf("unknown error\n");
}
socketDescriptor=-1;
}
#ifdef VERY_VERBOSE
else
cout << "client connected "<< file_des << endl;
#endif
}
// file_des = socketDescriptor;
#ifdef VERY_VERBOSE
cout << "fd " << file_des << endl;
#endif
} else {
if (socketDescriptor<=0)
socketDescriptor = socket(AF_INET, SOCK_STREAM,0); //tcp
// SetTimeOut(10);
if (socketDescriptor < 0){
cerr << "Can not create socket "<<endl;
file_des = socketDescriptor;
} else {
if(connect(socketDescriptor,(struct sockaddr *) &serverAddress,sizeof(serverAddress))<0){
cerr << "Can not connect to socket "<<endl;
file_des = -1;
} else
file_des = socketDescriptor;
}
}
return file_des;
}
int MySocketTCP::SetTimeOut(int ts){
if (ts<=0)
return -1;
//cout << "socketdescriptor "<< socketDescriptor << endl;
struct timeval tout;
tout.tv_sec = 0;
tout.tv_usec = 0;
if(::setsockopt(socketDescriptor, SOL_SOCKET, SO_RCVTIMEO, &tout, sizeof(struct timeval)) <0)
{
cerr << "Error in setsockopt SO_RCVTIMEO "<< 0 << endl;
}
tout.tv_sec = ts;
tout.tv_usec = 0;
if(::setsockopt(socketDescriptor, SOL_SOCKET, SO_SNDTIMEO, &tout, sizeof(struct timeval)) < 0)
{
cerr << "Error in setsockopt SO_SNDTIMEO " << ts << endl;
}
return 0;
}
void MySocketTCP::Disconnect(){
if(file_des>=0){ //then was open
if(is_a_server){
close(file_des);
}
else {
close(socketDescriptor);
socketDescriptor=-1;
}
file_des=-1;
}
}
int MySocketTCP::SendDataOnly(void* buf,int length){//length in characters