tcp/quic lab patched

2026-01-10 10:54:46 +08:00
parent 33c8e3f3da
commit b09a29b7e8
11 changed files with 618 additions and 8 deletions
--- a/network/tcpquiclab/tcp_multi_server.c
+++ b/network/tcpquiclab/tcp_multi_server.c
@@ -0,0 +1,118 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <sys/socket.h>
+#include <pthread.h>
+#include <time.h>
+
+#define PORT 8081
+#define BUFFER_SIZE 4096
+#define EXPECTED_CONNECTIONS 5
+#define TOTAL_TARGET_MB 100
+
+long long global_bytes_received = 0;
+int connections_handled = 0;
+pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+struct timespec start_time, end_time;
+int first_connect = 1;
+
+void *handle_client(void *socket_desc) {
+    int sock = *(int*)socket_desc;
+    free(socket_desc);
+    char buffer[BUFFER_SIZE];
+    int valread;
+    long long thread_bytes = 0;
+
+    while ((valread = read(sock, buffer, BUFFER_SIZE)) > 0) {
+        thread_bytes += valread;
+    }
+
+    pthread_mutex_lock(&lock);
+    global_bytes_received += thread_bytes;
+    connections_handled++;
+    pthread_mutex_unlock(&lock);
+
+    close(sock);
+    return NULL;
+}
+
+int main() {
+    int server_fd, new_socket;
+    struct sockaddr_in address;
+    int opt = 1;
+    int addrlen = sizeof(address);
+
+    if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0) {
+        perror("socket failed");
+        exit(EXIT_FAILURE);
+    }
+
+    if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &opt, sizeof(opt))) {
+        perror("setsockopt");
+        exit(EXIT_FAILURE);
+    }
+
+    address.sin_family = AF_INET;
+    address.sin_addr.s_addr = INADDR_ANY;
+    address.sin_port = htons(PORT);
+
+    if (bind(server_fd, (struct sockaddr *)&address, sizeof(address)) < 0) {
+        perror("bind failed");
+        exit(EXIT_FAILURE);
+    }
+
+    if (listen(server_fd, 5) < 0) {
+        perror("listen");
+        exit(EXIT_FAILURE);
+    }
+
+    printf("TCP Multi-Connection Server listening on port %d...\n", PORT);
+    printf("Waiting for %d connections to transfer total %d MB...\n", EXPECTED_CONNECTIONS, TOTAL_TARGET_MB);
+
+    pthread_t threads[EXPECTED_CONNECTIONS];
+    int t_count = 0;
+
+    while (t_count < EXPECTED_CONNECTIONS) {
+        if ((new_socket = accept(server_fd, (struct sockaddr *)&address, (socklen_t*)&addrlen)) < 0) {
+            perror("accept");
+            exit(EXIT_FAILURE);
+        }
+
+        if (first_connect) {
+            clock_gettime(CLOCK_MONOTONIC, &start_time);
+            first_connect = 0;
+            printf("First connection received. Timer started.\n");
+        }
+
+        int *new_sock = malloc(1);
+        *new_sock = new_socket;
+        
+        if (pthread_create(&threads[t_count], NULL, handle_client, (void*)new_sock) < 0) {
+            perror("could not create thread");
+            return 1;
+        }
+        t_count++;
+    }
+
+    // Wait for all threads to finish
+    for (int i = 0; i < EXPECTED_CONNECTIONS; i++) {
+        pthread_join(threads[i], NULL);
+    }
+
+    clock_gettime(CLOCK_MONOTONIC, &end_time);
+
+    double time_taken = (end_time.tv_sec - start_time.tv_sec) + (end_time.tv_nsec - start_time.tv_nsec) / 1e9;
+    double mb = global_bytes_received / (1024.0 * 1024.0);
+    double throughput = mb / time_taken;
+
+    printf("\nTest Finished:\n");
+    printf("Total Connections: %d\n", connections_handled);
+    printf("Total Data Received: %.2f MB\n", mb);
+    printf("Time Taken: %.2f seconds\n", time_taken);
+    printf("Total Throughput: %.2f MB/s\n", throughput);
+
+    close(server_fd);
+    return 0;
+}