Made the sendAll and recvAll functions in sock.cpp use variables set by the children, rather than having the functions pass parameters
This commit is contained in:
13
client.cpp
13
client.cpp
@@ -22,7 +22,7 @@ void Client::create_socket() {
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Sock::create_socket();
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Sock::create_socket();
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this->sock_fd = create_remote(this->ip_ver, this->protocol, this->address.data(), this->port, dest);
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this->sock_fd = create_remote(this->ip_ver, this->protocol, this->address.data(), this->port, dest);
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if (this->sock_fd < 0) {
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if (this->sock_fd < 0) {
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throw strerror(this->sock_fd * -1);
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throw (this->sock_fd * -1);
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}
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}
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}
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}
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@@ -32,12 +32,19 @@ client socket (TCP or UDP) does not have this requirement. Therefore, while both
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sendAll methods perform the same actions, they do so using different sockets. */
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sendAll methods perform the same actions, they do so using different sockets. */
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void Client::sendAll(std::string to_send) {
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void Client::sendAll(std::string to_send) {
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Sock::sendAll(to_send, this->sock_fd);
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this->other_socket = this->sock_fd;
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Sock::sendAll(to_send);
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}
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}
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/* Receives data from peer socket, and returns it. See above for better
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/* Receives data from peer socket, and returns it. See above for better
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explanation of why this method is overriden. */
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explanation of why this method is overriden. */
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std::string Client::recvAll() {
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std::string Client::recvAll() {
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return Sock::recvAll(this->sock_fd);
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this->other_socket = this->sock_fd;
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return Sock::recvAll();
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}
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/* Returns the type of socket based on the global constants set in sock.hpp */
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int Client::get_type() {
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return SOCK_CLIENT;
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}
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}
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50
server.cpp
50
server.cpp
@@ -4,6 +4,7 @@
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#include "includes/server.hpp"
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#include "includes/server.hpp"
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#include "includes/exception_consts.hpp"
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#include "includes/exception_consts.hpp"
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#include "includes/easysock.hpp"
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#include "includes/easysock.hpp"
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#include "includes/connect_code.hpp"
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/* Destructor - closes any open sockets */
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/* Destructor - closes any open sockets */
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Server::~Server() {
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Server::~Server() {
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@@ -16,22 +17,37 @@ base method, because a different socket must be used. In the server's case, the
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'peer' socket i.e. the socket returned after calling 'accept', must be used. */
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'peer' socket i.e. the socket returned after calling 'accept', must be used. */
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void Server::sendAll(std::string to_send) {
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void Server::sendAll(std::string to_send) {
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Sock::sendAll(to_send, this->other_socket);
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Sock::sendAll(to_send);
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}
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}
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/* Receives data from socket, and returns it. This function works differently
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/* Receives data from socket, and returns it. This function works differently
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based on the Transport layer protocol used. For TCP, it calls the parent method
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based on the Transport layer protocol used. For TCP, it sets the 'other_socket' variable (used
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with the peer socket. As mentioned above, this is the socket returned after
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by the parent function) to the peer socket. As mentioned above, this is the
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calling the accept function. With UDP, there is no concept of a peer socket, and
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socket returned after calling the accept function. With UDP, there is no concept
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so the regular server socket (the one created in create_socket() ) is used
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of a peer socket, and so the regular server socket (the one created in create_socket())
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instead. */
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is used instead. This function also sets the 'peer_addr' string to the address of the
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peer socket, handling both TCP and UDP. */
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std::string Server::recvAll() {
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std::string Server::recvAll() {
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if (this->protocol == 'T') {
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if (this->protocol == ES_UDP) {
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return Sock::recvAll(this->other_socket);
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this->other_socket = this->sock_fd;
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} else {
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return Sock::recvAll(this->sock_fd);
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}
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}
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/* Call receive method of parent */
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std::string to_return = Sock::recvAll();
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/* Set the peer address of the socket */
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if (this->ip_ver == 4) {
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/* FOR IPv4 */
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struct sockaddr_in* temp_struct = (struct sockaddr_in*)this->dest;
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/* Convert the s_addr field of the caseted struct to host network-byte, and convert it to a dotted decimal */
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peer_addr = connect_code::dec_to_dotted_dec(std::to_string(htonl(temp_struct->sin_addr.s_addr)));
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} else {
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/* FOR IPv6 */
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peer_addr = "IPV6 NOT SUPPORTED YET";
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}
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return to_return;
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}
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}
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/* FOR TCP ONLY - Waits for a peer to connect to the server socket. It stores
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/* FOR TCP ONLY - Waits for a peer to connect to the server socket. It stores
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@@ -40,8 +56,8 @@ nothing if your server socket is a UDP socket. If the accept function fails, the
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is thrown as an exception. */
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is thrown as an exception. */
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void Server::wait_for_peer() {
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void Server::wait_for_peer() {
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if (this->protocol == 'T') {
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if (this->protocol == ES_TCP) {
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this->other_socket = accept(this->sock_fd, NULL, NULL);
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this->other_socket = accept(this->sock_fd, dest, &addrlen);
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if (this->other_socket < 0) {
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if (this->other_socket < 0) {
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throw errno;
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throw errno;
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}
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}
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@@ -61,9 +77,17 @@ void Server::create_socket() {
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if (this->sock_fd < 0) {
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if (this->sock_fd < 0) {
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throw (this->sock_fd * -1);
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throw (this->sock_fd * -1);
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}
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}
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if (protocol == 'T') {
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if (protocol == ES_TCP) {
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listen(sock_fd, 10);
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listen(sock_fd, 10);
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}
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}
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}
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}
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/* Returns the address of the peer socket as a string, can be used for debugging */
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std::string Server::get_peer_addr() {
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return this->peer_addr;
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}
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/* Returns the type of socket based on the global constants set in sock.hpp */
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int Server::get_type() {
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return SOCK_SERVER;
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}
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21
sock.cpp
21
sock.cpp
@@ -25,7 +25,7 @@ Sock::Sock(int ip_ver, char protocol, const char* address, int port) {
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if (port < 1024 || port > 65535) {
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if (port < 1024 || port > 65535) {
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throw std::invalid_argument("Invalid port");
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throw std::invalid_argument("Invalid port");
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}
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}
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if (protocol != 'T' && protocol != 'U') {
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if (protocol != ES_TCP && protocol != ES_UDP) {
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throw std::invalid_argument("Invalid protocol");
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throw std::invalid_argument("Invalid protocol");
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}
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}
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@@ -40,23 +40,24 @@ Sock::Sock(int ip_ver, char protocol, const char* address, int port) {
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}
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}
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}
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}
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/* This method sends the given data, through the given socket. Client and server
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/* This method sends the given data, through the 'other_sockt' variable.. Client
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classes extend this method, by calling it with different parameters.
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and server classes extend this method, by setting this variable to different values.
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This function needs more testing for TCP, as it focuses on UDP right now. */
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This function needs more testing for TCP, as it focuses on UDP right now. */
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void Sock::sendAll(std::string to_send, int dest_sock) {
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void Sock::sendAll(std::string to_send) {
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int str_length = to_send.length();
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int str_length = to_send.length();
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int num_bytes_sent = 0; /* Number of bytes sent in one call to send */
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int num_bytes_sent = 0; /* Number of bytes sent in one call to send */
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int total_bytes_sent = 0; /* Total number of bytes sent */
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int total_bytes_sent = 0; /* Total number of bytes sent */
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/* For UDP sockets */
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/* For UDP sockets */
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if (this->protocol == 'U') {
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if (this->protocol == ES_UDP) {
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sendto(this->sock_fd, to_send.data(), str_length, 0, dest, addrlen);
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sendto(this->sock_fd, to_send.data(), str_length, 0, dest, addrlen);
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}
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}
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/* For TCP sockets */
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/* For TCP sockets */
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else {
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else {
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while (total_bytes_sent < str_length) {
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while (total_bytes_sent < str_length) {
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num_bytes_sent = send(dest_sock, to_send.substr(total_bytes_sent).data(), str_length - total_bytes_sent, 0);
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/* Send the data to the 'other_socket' variable, which should be set by the client and server methods */
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num_bytes_sent = send(this->other_socket, to_send.substr(total_bytes_sent).data(), str_length - total_bytes_sent, 0);
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if (num_bytes_sent < 0) {
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if (num_bytes_sent < 0) {
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throw errno * -1;
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throw errno * -1;
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}
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}
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@@ -67,24 +68,24 @@ void Sock::sendAll(std::string to_send, int dest_sock) {
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return;
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return;
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}
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}
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/* Receives data from given socket into a string, and returns that string. For TCP, the
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/* Receives data from 'other_socket' into a string, and returns that string. For TCP, the
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'recv' method is called until all the data has been read. For UDP, the 'recvfrom'
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'recv' method is called until all the data has been read. For UDP, the 'recvfrom'
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method is only called once.
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method is only called once.
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This function also needs more testing for TCP. */
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This function also needs more testing for TCP. */
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std::string Sock::recvAll(int from_sock) {
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std::string Sock::recvAll() {
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int num_bytes_received;
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int num_bytes_received;
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std::string string = std::string();
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std::string string = std::string();
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char* buffer = (char *)malloc(100);
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char* buffer = (char *)malloc(100);
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bool has_been_read = false;
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bool has_been_read = false;
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if (this->protocol == 'U') {
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if (this->protocol == ES_UDP) {
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recvfrom(this->sock_fd, buffer, 100, 0, dest, &addrlen);
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recvfrom(this->sock_fd, buffer, 100, 0, dest, &addrlen);
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string.append(std::string(buffer));
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string.append(std::string(buffer));
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}
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}
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/* For TCP sockets */
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/* For TCP sockets */
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else {
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else {
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while ((num_bytes_received = recv(from_sock, buffer, 100, 0)) != 0) {
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while ((num_bytes_received = recv(this->other_socket, buffer, 100, 0)) != 0) {
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if ((errno == EAGAIN || errno == EWOULDBLOCK)) {
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if ((errno == EAGAIN || errno == EWOULDBLOCK)) {
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if (has_been_read) {
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if (has_been_read) {
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