init commit

archive/other/ssocket/test/client.c

@@ -0,0 +1,63 @@
+#include <stdio.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include <malloc.h>
+#include <mhash.h>
+#include <sys/wait.h>
+
+#define FORK_NUM 10
+
+int sub_pid[FORK_NUM] = {0};
+
+void sigint_deal(int sig) {
+    for (int i = 0; i < FORK_NUM; i++) {
+        kill(sub_pid[i], SIGINT);
+    }
+    exit(0);
+}
+
+int main() {
+    struct hostent *host = gethostbyname("127.0.0.1");
+    void *buff = malloc(1024);
+
+    signal(SIGINT, sigint_deal);
+    for (int i = 0; i < FORK_NUM; i++) {
+        int pid = fork();
+        if (pid == 0) {
+            //子进程
+            printf("in sub process\n");
+            for (int j = 0; j < 100; j++) {
+                int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+                struct sockaddr_in server_sock;
+                server_sock.sin_family = AF_INET;
+                server_sock.sin_port = htons(1234);
+                server_sock.sin_addr = *((struct in_addr *) host->h_addr);
+                int ret = connect(fd, (const struct sockaddr *) &server_sock, sizeof(struct sockaddr_in));
+                if (ret == -1) {
+                    printf("connect error\n");
+                    continue;
+                }
+                ret = (int) send(fd, "test", 4, 0);
+                printf("pid:%d,send test:%d\n", getpid(), ret);
+                memset(buff, 0, 1024);
+                ret = (int) recv(fd, buff, 1024, 0);
+                printf("pid:%d,recv:%s\n", getpid(), (char *) buff);
+                close(fd);
+            }
+            printf("sub process over\n");
+            return 0;
+        } else if (pid > 0) {
+            sub_pid[i] = pid;
+            printf("my father\n");
+        } else {
+            printf("create process error\n");
+        }
+    }
+    for (int i = 0; i < FORK_NUM; i++) {
+        wait((int *) sub_pid[i]);
+    }
+    printf("over\n");
+    free(buff);
+    return 0;
+}