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multithread-server
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Serafim 2024-12-14 05:52:57 +03:00
parent 947bff0380
commit 27e21e7ed1
7 changed files with 194 additions and 131 deletions
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client/client
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57
client/client.cpp
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@ -33,6 +33,12 @@ void* recieve(void* arg) {
if (recieved == 0) {
std::cout << "Server shutted down" << std::endl;
close(client_socket);
if (client_socket1 == client_socket) {
client_socket1 = -1;
}
if (client_socket2 == client_socket) {
client_socket2 = -1;
}
break;
}
@ -46,13 +52,20 @@ void* recieve(void* arg) {
return nullptr;
}
struct timer_payload {
int client_socket;
std::string msg;
};
void* timer(void* arg) {
int client_socket = *(int*)arg;
delete (int*)arg;
timer_payload payload = *(timer_payload*)arg;
int client_socket = payload.client_socket;
std::string msg = payload.msg;
while (true) {
send(client_socket, "", 1, 0);
std::this_thread::sleep_for(std::chrono::seconds(1));
send(client_socket, msg.c_str(), msg.length(), 0);
std::this_thread::sleep_for(std::chrono::seconds(3));
}
return nullptr;
@ -72,6 +85,10 @@ int main() {
if(command == "quit") {
break;
} else if (command == "connect1") {
if (client_socket1 != -1) {
std::cout << "Server is already connected" << std::endl;
continue;
}
client_socket1 = socket(AF_INET, SOCK_STREAM, 0);
sockaddr_in server_address1;
server_address1.sin_family = AF_INET;
@ -86,6 +103,10 @@ int main() {
std::cout << "Failed to connect " << std::strerror(errno) << std::endl;
}
} else if (command == "connect2") {
if (client_socket2 != -1) {
std::cout << "Server is already connected" << std::endl;
continue;
}
client_socket2 = socket(AF_INET, SOCK_STREAM, 0);
sockaddr_in server_address2;
server_address2.sin_family = AF_INET;
@ -129,21 +150,32 @@ int main() {
std::cout << "Server is not connected" << std::endl;
}
} else if (command == "send1") {
if (send(client_socket1, "", 1, 0) == -1) {
std::cout << "Enter the message: ";
std::string msg;
std::cin >> msg;
if (send(client_socket1, msg.c_str(), msg.length(), 0) == -1) {
std::cout << "Server is not connected" << std::endl;
} else {
std::cout << "Message sent" << std::endl;
}
} else if (command == "send2") {
if (send(client_socket2, "", 1, 0) == -1) {
std::cout << "Enter the message: ";
std::string msg;
std::cin >> msg;
if (send(client_socket2, msg.c_str(), msg.length(), 0) == -1) {
std::cout << "Server is not connected" << std::endl;
} else {
std::cout << "Message sent" << std::endl;
}
} else if (command == "timer1") {
if (client_socket1 != -1) {
int* client_socket_copy1 = new int(client_socket1);
pthread_create(&t1, nullptr, &timer, client_socket_copy1);
std::cout << "Enter the message: ";
std::string msg;
std::cin >> msg;
struct timer_payload p;
p.client_socket = client_socket1;
p.msg = msg;
pthread_create(&t1, nullptr, &timer, &p);
pthread_detach(t1);
std::cout << "Timer created" << std::endl;
} else {
@ -151,8 +183,13 @@ int main() {
}
} else if (command == "timer2") {
if (client_socket2 != -1) {
int* client_socket_copy2 = new int(client_socket2);
pthread_create(&t2, nullptr, &timer, client_socket_copy2);
std::cout << "Enter the message: ";
std::string msg;
std::cin >> msg;
struct timer_payload p;
p.client_socket = client_socket2;
p.msg = msg;
pthread_create(&t2, nullptr, &timer, &p);
pthread_detach(t2);
std::cout << "Timer created" << std::endl;
} else {

14
log_data/2024-12-14.log Normal file
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@ -0,0 +1,14 @@
2024/12/14 02:47:49 Socket created
2024/12/14 02:47:58 Socket created
2024/12/14 02:48:44 New thread created for socket 4
2024/12/14 02:48:55 Got new message from client 4
2024/12/14 02:49:26 Got new message from client 4
2024/12/14 02:49:26 Sent new info to client
2024/12/14 02:50:05 Socket created
2024/12/14 02:50:08 New thread created for socket 4
2024/12/14 02:50:17 Got new message from client 4
2024/12/14 02:50:17 uwu
2024/12/14 02:50:27 Got new message from client 4
2024/12/14 02:51:36 Connection with client 4 closed
2024/12/14 02:51:56 Socket created
2024/12/14 02:51:58 Socket created

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server1/server
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122
server1/server.cpp
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@ -50,8 +50,8 @@ std::string last_log_messages[CMD_LOG_BUFFER];
// Amount of active client sessions served by different threads
int active_connections = 0;
// Total amount of handled requests
int handndled_requests = 0;
// Mutex to change counter
pthread_mutex_t conn_mutex;
// Log pipe file descriptor
int is_log_ok = false;
@ -71,40 +71,10 @@ std::string get_last_error() {
return "Last error: " + std::to_string(error_code) + " - " + error_description + "\n";
}
// void disable_buffering() {
// struct termios t;
// tcgetattr(STDIN_FILENO, &t); // Get the terminal settings
// t.c_lflag &= ~ICANON; // Disable canonical mode (no buffering)
// t.c_lflag &= ~ECHO; // Disable echo (no terminal output)
// t.c_cc[VMIN] = 1; // Set the minimum number of characters to read (1 char)
// t.c_cc[VTIME] = 0; // Disable timeout
// tcsetattr(STDIN_FILENO, TCSANOW, &t); // Apply the new settings
// }
// void restore_buffering() {
// struct termios t;
// tcgetattr(STDIN_FILENO, &t); // Get the terminal settings
// t.c_lflag |= ICANON; // Enable canonical mode (buffering)
// t.c_lflag |= ECHO; // Enable echo
// tcsetattr(STDIN_FILENO, TCSANOW, &t); // Apply the restored settings
// }
// Returns info about current cursor position in console
std::string get_cursor_position() {
int x, y;
// // Disable buffering
// disable_buffering();
// printf("\033[6n"); // Request cursor position
// scanf("\033[%d;%dR", &x, &y); // Read cursor position
// // Print the cursor position
// printf("Cursor position: (%d, %d)\n", x, y);
// // Restore the terminal settings
// restore_buffering();
getyx(stdscr, y, x);
return "Cursor position: y: " + std::to_string(y) + " x: " + std::to_string(x) + "\n";
@ -172,14 +142,6 @@ std::string get_vmem() {
return "Virtual memory of the proccess: " + std::to_string(100.0 * not_free_mem/total_mem) + "%\n";
}
// Returns message to send according to the server type
std::string get_sysinfo() {
if (SERVER_TYPE == "server1") {
return '\t' + get_last_error() + "\t\t\t" + get_cursor_position();
}
return '\t' + get_mem_percent() + "\t\t\t" + get_vmem(); // TODO: vmem
}
// Writes log message on screen and passes it to the logging pipe
void log(std::string msg) {
// Add log message to the screen buffer
@ -242,19 +204,22 @@ void* handle_connection(void* arg) {
int client_socket = *(int*)arg;
delete (int*)arg;
std::string info = "";
std::string info1 = "";
std::string info2 = "";
log("New thread created for socket " + std::to_string(client_socket) + '\0');
while (true) {
// Recieve message from client
char buffer[5];
char buffer[128];
ssize_t bytes_recieved = recv(client_socket, buffer, sizeof(buffer), 0);
// If connection closed
if (bytes_recieved == 0) {
log("Connection with client " + std::to_string(client_socket) + " closed");
pthread_mutex_lock(&conn_mutex);
active_connections--;
pthread_mutex_unlock(&conn_mutex);
break;
}
@ -265,22 +230,57 @@ void* handle_connection(void* arg) {
log("Got new message from client " + std::to_string(client_socket) + '\0');
std::string new_info = get_sysinfo();
std::string new_info, req = std::string(buffer);
log(req + '\0');
if (info != new_info) {
info = new_info;
time_t now = time(0);
struct tm tstruct;
tstruct = *localtime(&now);
char timestamp[32];
std::strftime(timestamp, 32, "%Y/%m/%d %H:%M:%S ", &tstruct);
std::string msg = timestamp + info;
send(client_socket, msg.c_str(), strlen(msg.c_str()) + 1, 0);
log("Sent new info to client\0");
handndled_requests++;
} else {
log("Actual info already on client\0");
if (SERVER_TYPE == "server1") {
if (req == "last_error") {
new_info = get_last_error();
if (new_info == info1) {
log("Actual info already on client\0");
continue;
}
info1 = new_info;
} else if (req == "cursor_position") {
new_info = get_cursor_position();
if (new_info == info2) {
log("Actual info already on client\0");
continue;
}
info2 = new_info;
} else {
new_info = "Invalid request. Available options: last_error, cursor_position";
}
}
if (SERVER_TYPE == "server2") {
if (req == "mem") {
new_info = get_mem_percent();
if (new_info == info1) {
log("Actual info already on client\0");
continue;
}
info1 = new_info;
} else if (req == "vmem") {
new_info = get_vmem();
if (new_info == info2) {
log("Actual info already on client\0");
continue;
}
info2 = new_info;
} else {
new_info = "Invalid request. Available options: mem, vmem";
}
}
time_t now = time(0);
struct tm tstruct;
tstruct = *localtime(&now);
char timestamp[32];
std::strftime(timestamp, 32, "%Y/%m/%d %H:%M:%S ", &tstruct);
std::string msg = timestamp + new_info;
send(client_socket, msg.c_str(), strlen(msg.c_str()) + 1, 0);
log("Sent new info to client\0");
}
close(client_socket);
@ -298,8 +298,8 @@ void* draw(void* arg) {
// Print configuration
printw(
"LOG_FIFO_NAME=%s\nSERVER_TYPE=%s\nPORT=%i\nMAX_CONNECTIONS=%i\nCMD_LOG_BUFFER=%i\nCMD_REFRESH_TIME=%i\n\n",
LOG_FIFO_NAME.c_str(), SERVER_TYPE.c_str(), PORT, MAX_CONNECTIONS, CMD_LOG_BUFFER, CMD_REFRESH_TIME
"LOG_FIFO_NAME=%s\nSERVER_TYPE=%s\nPORT=%i\nCMD_LOG_BUFFER=%i\nCMD_REFRESH_TIME=%i\n\n",
LOG_FIFO_NAME.c_str(), SERVER_TYPE.c_str(), PORT, CMD_LOG_BUFFER, CMD_REFRESH_TIME
);
if (is_log_ok) {
@ -309,7 +309,7 @@ void* draw(void* arg) {
}
// Print statistics
printw("Active connections: %i\nHandled messages: %i\n", active_connections, handndled_requests);
printw("Active connections: %i\n", active_connections);
// Print logs
for (int i = CMD_LOG_BUFFER-1; i >= 0; i--) {
@ -380,7 +380,9 @@ int main() {
continue;
}
pthread_mutex_lock(&conn_mutex);
active_connections++;
pthread_mutex_unlock(&conn_mutex);
// Create thread for each connection
int* client_socket_copy = new int(client_socket);

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server2/server
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132
server2/server.cpp
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@ -50,8 +50,8 @@ std::string last_log_messages[CMD_LOG_BUFFER];
// Amount of active client sessions served by different threads
int active_connections = 0;
// Total amount of handled requests
int handndled_requests = 0;
// Mutex to change counter
pthread_mutex_t conn_mutex;
// Log pipe file descriptor
int is_log_ok = false;
@ -71,40 +71,10 @@ std::string get_last_error() {
return "Last error: " + std::to_string(error_code) + " - " + error_description + "\n";
}
// void disable_buffering() {
// struct termios t;
// tcgetattr(STDIN_FILENO, &t); // Get the terminal settings
// t.c_lflag &= ~ICANON; // Disable canonical mode (no buffering)
// t.c_lflag &= ~ECHO; // Disable echo (no terminal output)
// t.c_cc[VMIN] = 1; // Set the minimum number of characters to read (1 char)
// t.c_cc[VTIME] = 0; // Disable timeout
// tcsetattr(STDIN_FILENO, TCSANOW, &t); // Apply the new settings
// }
// void restore_buffering() {
// struct termios t;
// tcgetattr(STDIN_FILENO, &t); // Get the terminal settings
// t.c_lflag |= ICANON; // Enable canonical mode (buffering)
// t.c_lflag |= ECHO; // Enable echo
// tcsetattr(STDIN_FILENO, TCSANOW, &t); // Apply the restored settings
// }
// Returns info about current cursor position in console
std::string get_cursor_position() {
int x, y;
// // Disable buffering
// disable_buffering();
// printf("\033[6n"); // Request cursor position
// scanf("\033[%d;%dR", &x, &y); // Read cursor position
// // Print the cursor position
// printf("Cursor position: (%d, %d)\n", x, y);
// // Restore the terminal settings
// restore_buffering();
getyx(stdscr, y, x);
return "Cursor position: y: " + std::to_string(y) + " x: " + std::to_string(x) + "\n";
@ -172,14 +142,6 @@ std::string get_vmem() {
return "Virtual memory of the proccess: " + std::to_string(100.0 * not_free_mem/total_mem) + "%\n";
}
// Returns message to send according to the server type
std::string get_sysinfo() {
if (SERVER_TYPE == "server1") {
return '\t' + get_last_error() + "\t\t\t" + get_cursor_position();
}
return '\t' + get_mem_percent() + "\t\t\t" + get_vmem(); // TODO: vmem
}
// Writes log message on screen and passes it to the logging pipe
void log(std::string msg) {
// Add log message to the screen buffer
@ -211,12 +173,14 @@ void log(std::string msg) {
// Returns file descriptor for server socket
int start_socket() {
int option = 1;
int server_socket = socket(AF_INET, SOCK_STREAM, 0);
setsockopt(server_socket, SOL_SOCKET, SO_REUSEADDR, &option, sizeof(option));
sockaddr_in server_address;
server_address.sin_family = AF_INET;
server_address.sin_port = htons(PORT);
server_address.sin_addr.s_addr = INADDR_ANY;
bind(server_socket, (struct sockaddr*)&server_address, sizeof(server_address));
if (errno == 98) {
@ -240,19 +204,22 @@ void* handle_connection(void* arg) {
int client_socket = *(int*)arg;
delete (int*)arg;
std::string info = "";
std::string info1 = "";
std::string info2 = "";
log("New thread created for socket " + std::to_string(client_socket) + '\0');
while (true) {
// Recieve message from client
char buffer[5];
char buffer[128];
ssize_t bytes_recieved = recv(client_socket, buffer, sizeof(buffer), 0);
// If connection closed
if (bytes_recieved == 0) {
log("Connection with client " + std::to_string(client_socket) + " closed");
pthread_mutex_lock(&conn_mutex);
active_connections--;
pthread_mutex_unlock(&conn_mutex);
break;
}
@ -263,22 +230,57 @@ void* handle_connection(void* arg) {
log("Got new message from client " + std::to_string(client_socket) + '\0');
std::string new_info = get_sysinfo();
std::string new_info, req = std::string(buffer);
log(req);
if (info != new_info) {
info = new_info;
time_t now = time(0);
struct tm tstruct;
tstruct = *localtime(&now);
char timestamp[32];
std::strftime(timestamp, 32, "%Y/%m/%d %H:%M:%S ", &tstruct);
std::string msg = timestamp + info;
send(client_socket, msg.c_str(), strlen(msg.c_str()) + 1, 0);
log("Sent new info to client\0");
handndled_requests++;
} else {
log("Actual info already on client\0");
if (SERVER_TYPE == "server1") {
if (req == "last_error") {
new_info = get_last_error();
if (new_info == info1) {
log("Actual info already on client\0");
continue;
}
info1 = new_info;
} else if (req == "cursor_position") {
new_info = get_cursor_position();
if (new_info == info2) {
log("Actual info already on client\0");
continue;
}
info2 = new_info;
} else {
new_info = "Invalid request. Available options: last_error, cursor_position";
}
}
if (SERVER_TYPE == "server2") {
if (req == "mem") {
new_info = get_mem_percent();
if (new_info == info1) {
log("Actual info already on client\0");
continue;
}
info1 = new_info;
} else if (req == "vmem") {
new_info = get_vmem();
if (new_info == info2) {
log("Actual info already on client\0");
continue;
}
info2 = new_info;
} else {
new_info = "Invalid request. Available options: mem, vmem";
}
}
time_t now = time(0);
struct tm tstruct;
tstruct = *localtime(&now);
char timestamp[32];
std::strftime(timestamp, 32, "%Y/%m/%d %H:%M:%S ", &tstruct);
std::string msg = timestamp + new_info;
send(client_socket, msg.c_str(), strlen(msg.c_str()) + 1, 0);
log("Sent new info to client\0");
}
close(client_socket);
@ -296,8 +298,8 @@ void* draw(void* arg) {
// Print configuration
printw(
"LOG_FIFO_NAME=%s\nSERVER_TYPE=%s\nPORT=%i\nMAX_CONNECTIONS=%i\nCMD_LOG_BUFFER=%i\nCMD_REFRESH_TIME=%i\n\n",
LOG_FIFO_NAME.c_str(), SERVER_TYPE.c_str(), PORT, MAX_CONNECTIONS, CMD_LOG_BUFFER, CMD_REFRESH_TIME
"LOG_FIFO_NAME=%s\nSERVER_TYPE=%s\nPORT=%i\nCMD_LOG_BUFFER=%i\nCMD_REFRESH_TIME=%i\n\n",
LOG_FIFO_NAME.c_str(), SERVER_TYPE.c_str(), PORT, CMD_LOG_BUFFER, CMD_REFRESH_TIME
);
if (is_log_ok) {
@ -307,7 +309,7 @@ void* draw(void* arg) {
}
// Print statistics
printw("Active connections: %i\nHandled messages: %i\n", active_connections, handndled_requests);
printw("Active connections: %i\n", active_connections);
// Print logs
for (int i = CMD_LOG_BUFFER-1; i >= 0; i--) {
@ -353,6 +355,12 @@ int main() {
int server_socket = start_socket();
if (server_socket == -1) {
getch();
endwin();
return 3;
}
log("Socket created\0");
// Create thread to read commands
@ -372,7 +380,9 @@ int main() {
continue;
}
pthread_mutex_lock(&conn_mutex);
active_connections++;
pthread_mutex_unlock(&conn_mutex);
// Create thread for each connection
int* client_socket_copy = new int(client_socket);