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Start on unix socket server on c++ side

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Konstantin Lampalzer 2022-05-22 02:30:07 +02:00
parent 0bef6035ae
commit 1a033c8b03
8 changed files with 300 additions and 9 deletions
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54
server_v2/src/communication/UnixSocketServer.cpp Normal file
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#include <sys/un.h>
#include <sys/socket.h>
#include <zconf.h>
#include "include/communication/UnixSocketServer.hpp"
#include "include/communication/MessageProcessor.hpp"
UnixSocketServer::UnixSocketServer() {
server_thread = std::thread(&UnixSocketServer::server_loop, this);
server_thread.detach();
}
[[noreturn]] void UnixSocketServer::server_loop() {
struct sockaddr_un socket_address;
int socket_file_descriptor = socket(AF_UNIX, SOCK_STREAM, 0);
remove(SOCKET_PATH);
memset(&socket_address, 0, sizeof(struct sockaddr_un));
socket_address.sun_family = AF_UNIX;
strncpy(socket_address.sun_path, SOCKET_PATH, sizeof(socket_address.sun_path) - 1);
if (bind(socket_file_descriptor, (struct sockaddr *) &socket_address, sizeof(struct sockaddr_un)) == -1) {
exit(-1);
}
if (listen(socket_file_descriptor, 1) == -1) {
exit(-2);
}
char read_buffer[SOCKET_BUFFER_SIZE];
char write_buffer[SOCKET_BUFFER_SIZE];
for (;;) {
int client_file_descriptor = accept(socket_file_descriptor, NULL, NULL);
read(client_file_descriptor, read_buffer, 1);
uint8_t message_size = read_buffer[0];
read(client_file_descriptor, read_buffer, read_buffer[0]);
std::string string_message;
for (int i{}; i < message_size; i++) {
string_message += read_buffer[i];
}
auto response = MessageProcessor::process_message(string_message);
uint8_t response_size = response->ByteSizeLong();
write_buffer[0] = response_size;
write(client_file_descriptor, write_buffer, 1);
response->SerializeToArray(write_buffer, SOCKET_BUFFER_SIZE);
write(client_file_descriptor, write_buffer, response_size);
close(client_file_descriptor);
}
}