RTC Networking: A Deep Dive into Real-Time Communication

1# This is a simplified example and would require specific hardware/software TSN support
2
3class TSNConfig:
4    def __init__(self):
5        self.vlan_id = 100
6        self.priority = 7
7        self.rate_limit = 10 # Mbps
8
9    def apply(self, interface):
10        print(f"Applying TSN configuration to interface {interface}")
11        print(f"VLAN ID: {self.vlan_id}")
12        print(f"Priority: {self.priority}")
13        print(f"Rate Limit: {self.rate_limit} Mbps")
14        # In a real system, you would use a library or API to configure the network interface
15
16config = TSNConfig()
17config.apply("eth0")
18

1# This is a simplified example using ptplib, a python PTP library.
2# Install it first: pip install ptplib
3
4import ptplib
5import time
6
7# Replace with your PTP master's IP address
8ptp_master_ip = "192.168.1.100"
9
10# Create a PTP client
11client = ptplib.PTPClient(master_ip=ptp_master_ip)
12
13# Start the client
14client.start()
15
16# Wait for synchronization
17time.sleep(5)
18
19# Get the current time from the PTP master
20master_time = client.get_master_time()
21
22print(f"Current time from PTP master: {master_time}")
23
24# Stop the client
25client.stop()
26

1#include <iostream>
2#include <chrono>
3#include <thread>
4#include <sys/socket.h>
5#include <netinet/in.h>
6#include <unistd.h>
7
8const int PORT = 8080;
9
10int main() {
11    int server_fd, new_socket;
12    struct sockaddr_in address;
13    int addrlen = sizeof(address);
14
15    // Create socket file descriptor
16    if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0) {
17        perror("socket failed");
18        return -1;
19    }
20
21    address.sin_family = AF_INET;
22    address.sin_addr.s_addr = INADDR_ANY;
23    address.sin_port = htons(PORT);
24
25    // Bind the socket to the specified port
26    if (bind(server_fd, (struct sockaddr *)&address, sizeof(address)) < 0) {
27        perror("bind failed");
28        return -1;
29    }
30
31    // Listen for incoming connections
32    if (listen(server_fd, 3) < 0) {
33        perror("listen failed");
34        return -1;
35    }
36
37    std::cout << "Server listening on port " << PORT << std::endl;
38
39    // Accept incoming connection
40    if ((new_socket = accept(server_fd, (struct sockaddr *)&address, (socklen_t*)&addrlen)) < 0) {
41        perror("accept failed");
42        return -1;
43    }
44
45    while (true) {
46        auto start = std::chrono::high_resolution_clock::now();
47
48        // Simulate a real-time task (e.g., reading sensor data)
49        std::cout << "Performing real-time task..." << std::endl;
50        std::this_thread::sleep_for(std::chrono::milliseconds(50)); // Simulate task duration
51
52        // Send data over the network (replace with actual data)
53        const char* message = "Data from real-time task";
54        send(new_socket, message, strlen(message), 0);
55
56        auto end = std::chrono::high_resolution_clock::now();
57        auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(end - start);
58
59        std::cout << "Task completed in " << duration.count() << " ms" << std::endl;
60    }
61
62    close(new_socket);
63    close(server_fd);
64    return 0;
65}
66