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wip vector version

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This commit is contained in:
hugogogo
2022-07-22 15:57:55 +02:00
parent 708da8bb61
commit 63581c8a42
5 changed files with 81 additions and 160 deletions
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4
Makefile
View File

@@ -45,11 +45,11 @@ HEADERS = Webserv.hpp
DEPENDENCIES = $(HEADERS:%=$(HEADERS_D)/%)
SRCS = $(MAIN) Webserv.cpp
#MAIN = main.cpp
MAIN = main.cpp
#MAIN = main_luke.cpp
#MAIN = main_hugo.cpp
#MAIN = main_poll.cpp
MAIN = main_select.cpp
#MAIN = main_select.cpp
DIR_OBJS = builds
OBJS = $(SRCS:%.cpp=$(DIR_OBJS)/%.o)

214
srcs/Webserv.cpp
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@@ -7,7 +7,7 @@ Webserv::Webserv()
std::cout << "Server init\n";
//_socket_fd = ::socket(AF_INET, SOCK_STREAM, 0);
// create socket descriptor
_socket_fd = ::socket(AF_INET, SOCK_STREAM | SOCK_NONBLOCK, 0);
if (_socket_fd == -1)
{
@@ -24,32 +24,18 @@ Webserv::Webserv()
}
//Webserv::Webserv(Webserv const &src)
//{
//
//}
Webserv::~Webserv()
{
std::cout << "Server destroyed\n";
}
//Webserv & Webserv::operator=(Webserv const &rhs)
//{
//
//}
///////////////
// Functions //
void Webserv::bind(in_port_t port)
{
struct sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_port = ::htons(port);
addr.sin_addr.s_addr = ::htonl(INADDR_ANY);
struct sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_port = ::htons(port);
addr.sin_addr.s_addr = ::htonl(INADDR_ANY);
if (::bind(_socket_fd, (const sockaddr*)&addr, sizeof addr) == -1)
{
::perror("err bind(): ");
@@ -69,83 +55,70 @@ void Webserv::listen(unsigned int max_connections)
#define BUFSIZE 8192
#define MSG_TEST "Le Webserv / 20 =D\n"
#define MSG_BOUNCE "bounced properly ;)\n" // placeholder
#define TRUE 1
#define FALSE 0
void Webserv::start()
void Webserv::_add_fd(int sd, short event)
{
int len, rc;
int listen_sd = -1, new_sd = -1;
int end_server = FALSE, compress_array = FALSE;
int close_conn;
char buffer[80];
// struct sockaddr_in addr;
struct pollfd fds[200];
int nfds = 1, current_size = 0, i, j;
struct pollfd new_poll_fd;
memset(fds, 0 , sizeof(fds));
fds[0].fd = listen_sd;
fds[0].events = POLLIN;
new_poll_fd.fd = sd;
new_poll_fd.events = event;
new_poll_fd.revents = 0;
_fds.push_back(new_poll_fd);
}
//void Webserv::_accept_sockets(int sd, short event)
//{
//}
void Webserv::start(int timeout)
{
int len;
int rc;
int new_sd = -1;
char buffer[80];
int current_size = 0;
int end_server = FALSE;
int compress_array = FALSE;
int close_conn;
struct pollfd * fds_ptr;
// init first struct
_add_fd(_socket_fd, POLLIN);
// init pointer on first element of vector of struct pollfd
fds_ptr = &_fds[0];
std::cout << "Server started\n";
while (end_server == FALSE)
{
// ***********************************************************
// * Call poll() *
// ***********************************************************
poll(fds, nfds, -1);
_nfds = _fds.size();
poll(fds_ptr, _nfds, timeout);
// ***********************************************************
// * One or more descriptors are readable. Need to *
// * determine which ones they are. *
// ***********************************************************
current_size = nfds;
for (i = 0; i < current_size; i++)
current_size = _nfds;
for (int i = 0; i < current_size; i++)
{
// *********************************************************
// * Loop through to find the descriptors that returned *
// * POLLIN and determine whether it's the listening *
// * or the active connection. *
// *********************************************************
if(fds[i].revents == 0)
continue;
// *********************************************************
// * If revents is not POLLIN, it's an unexpected result, *
// * log and end the server. *
// *********************************************************
if(fds[i].revents != POLLIN)
if(_fds[i].revents == 0)
{
printf(" Error! revents = %d\n", fds[i].revents);
std::cout << "here\n";
continue;
}
if(_fds[i].revents != POLLIN)
{
printf(" Error! revents = %d\n", _fds[i].revents);
end_server = TRUE;
break;
}
if (fds[i].fd == listen_sd)
{
// *******************************************************
// * Listening descriptor is readable. *
// *******************************************************
printf(" Listening socket is readable\n");
// *******************************************************
// * Accept all incoming connections that are *
// * queued up on the listening socket before we *
// * loop back and call poll again. *
// *******************************************************
if (_fds[i].fd == _socket_fd)
{
printf(" Listening socket is readable\n");
do
{
// *****************************************************
// * Accept each incoming connection. If *
// * accept fails with EWOULDBLOCK, then we *
// * have accepted all of them. Any other *
// * failure on accept will cause us to end the *
// * server. *
// *****************************************************
new_sd = accept(listen_sd, NULL, NULL);
new_sd = accept(_socket_fd, NULL, NULL);
if (new_sd < 0)
{
if (errno != EWOULDBLOCK)
printf(" new_sd < 0, = %i\n", new_sd);
if (errno != EWOULDBLOCK && errno != EAGAIN)
{
perror(" accept() failed");
end_server = TRUE;
@@ -153,45 +126,19 @@ void Webserv::start()
break;
}
// *****************************************************
// * Add the new incoming connection to the *
// * pollfd structure *
// *****************************************************
printf(" New incoming connection - %d\n", new_sd);
fds[nfds].fd = new_sd;
fds[nfds].events = POLLIN;
nfds++;
// *****************************************************
// * Loop back up and accept another incoming *
// * connection *
// *****************************************************
_add_fd(new_sd, POLLIN);
} while (new_sd != -1);
}
// *********************************************************
// * This is not the listening socket, therefore an *
// * existing connection must be readable *
// *********************************************************
else
{
printf(" Descriptor %d is readable\n", fds[i].fd);
printf(" Descriptor %d is readable\n", _fds[i].fd);
close_conn = FALSE;
// *******************************************************
// * Receive all incoming data on this socket *
// * before we loop back and call poll again. *
// *******************************************************
do
{
// *****************************************************
// * Receive data on this connection until the *
// * recv fails with EWOULDBLOCK. If any other *
// * failure occurs, we will close the *
// * connection. *
// *****************************************************
rc = recv(fds[i].fd, buffer, sizeof(buffer), 0);
rc = recv(_fds[i].fd, buffer, sizeof(buffer), 0);
if (rc < 0)
{
if (errno != EWOULDBLOCK)
@@ -202,10 +149,6 @@ void Webserv::start()
break;
}
// *****************************************************
// * Check to see if the connection has been *
// * closed by the client *
// *****************************************************
if (rc == 0)
{
printf(" Connection closed\n");
@@ -213,16 +156,10 @@ void Webserv::start()
break;
}
// *****************************************************
// * Data was received *
// *****************************************************
len = rc;
printf(" %d bytes received\n", len);
// *****************************************************
// * Echo the data back to the client *
// *****************************************************
rc = send(fds[i].fd, buffer, len, 0);
rc = send(_fds[i].fd, buffer, len, 0);
if (rc < 0)
{
perror(" send() failed");
@@ -232,48 +169,37 @@ void Webserv::start()
} while(TRUE);
// *******************************************************
// * If the close_conn flag was turned on, we need *
// * to clean up this active connection. This *
// * clean up process includes removing the *
// * descriptor. *
// *******************************************************
if (close_conn)
{
close(fds[i].fd);
fds[i].fd = -1;
close(_fds[i].fd);
_fds[i].fd = -1;
compress_array = TRUE;
}
} // End of existing connection is readable
} // End of loop through pollable descriptors
} // else
} // for (i = 0; i < current_size; i++)
// ***********************************************************
// * If the compress_array flag was turned on, we need *
// * to squeeze together the array and decrement the number *
// * of file descriptors. We do not need to move back the *
// * events and revents fields because the events will always*
// * be POLLIN in this case, and revents is output. *
// ***********************************************************
if (compress_array)
{
compress_array = FALSE;
for (i = 0; i < nfds; i++)
for (int i = 0; i < _nfds; i++)
{
if (fds[i].fd == -1)
if (_fds[i].fd == -1)
{
for(j = i; j < nfds; j++)
{
fds[j].fd = fds[j+1].fd;
}
// for(int j = i; j < nfds; j++)
// {
// fds[j].fd = fds[j+1].fd;
// }
_fds.erase(_fds.begin() + i);
i--;
nfds--;
// nfds--;
}
}
}
}
} // while (end_server == FALSE)
}
/*
@@ -322,5 +248,3 @@ void Webserv::start()
::close(accepted_fd);
*/
}
}

21
srcs/Webserv.hpp
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@@ -4,19 +4,9 @@
# include <string>
# include <map>
# include <vector>
# include <exception>
# include <stdexcept>
# include <unistd.h> // close
# include <iostream> // cout, cin
# include <sys/socket.h> // socket, accept, listen, send, recv, bind, connect, setsockopt, getsockname
# include <netinet/in.h> // sockaddr_in
// # include <netinet/ip.h> // usefull for what ?
# include <arpa/inet.h> // htonl, htons, ntohl, ntohs, inet_addr
# include <poll.h> // poll
# include <fcntl.h> // fcntl
# include <unistd.h> // close
# include <stdlib.h> // exit
# include <iostream> // cout, cin
@@ -30,6 +20,9 @@
# include <fcntl.h> // fcntl
# include <sys/ioctl.h> // ioctl
# define TRUE 1
# define FALSE 0
class Webserv
{
public:
@@ -40,13 +33,17 @@ class Webserv
void bind(in_port_t port);
void listen(unsigned int max_connections);
void start();
void start(int timeout);
private:
int _socket_fd;
std::map<std::string, std::string> _request;
std::map<std::string, std::string> _response;
std::vector<struct pollfd> _fds;
int _nfds;
void _add_fd(int sd, short event);
};
#endif

2
srcs/main.cpp
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@@ -13,7 +13,7 @@ int main(void)
// https://security.stackexchange.com/questions/169213/how-to-chose-a-port-to-run-an-application-on-localhost
serv.bind(4040);
serv.listen(20);
serv.start();
serv.start(3 * 60 * 1000);
}
catch (std::exception& e)
{

BIN
webserv
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