Changed EINTR demonstration example

Grzegorz Jabłoński
1 parent 92cb4f97
Showing 2 changed files with 15 additions and 5 deletions
eintrc.c
eintrs.c
@@ -12,10 +12,12 @@
 void
 alarmhandler (int s)
 {
-	signal (SIGALRM, alarmhandler);
+        printf("signal\n");
 	alarm (1);
 }
+char buffer[1024 * 1024];
+
 int
 main ()
 {
@@ -24,8 +26,13 @@ main ()
 	struct sockaddr_in address;
 	int result;
 	ssize_t count;
-	char buffer[1024 * 1024];
-	signal (SIGALRM, alarmhandler);
+
+	struct sigaction sig;
+	sig.sa_handler = alarmhandler;
+	sig.sa_flags = 0;
+	sigemptyset (&sig.sa_mask);
+	sigaction (SIGALRM, &sig, NULL);
+
 	alarm (1);
 	/*  Create a socket for the client.  */
@@ -53,7 +60,7 @@ main ()
 	while (1)
 	{
-		count = write (sockfd, buffer, 1024 * 1024);
+		count = write (sockfd, buffer, sizeof(buffer));
 		if (count == -1)
 			perror ("write");
 		else
@@ -35,9 +35,12 @@ main ()
 	client_sockfd = accept (server_sockfd,
 			(struct sockaddr *) &client_address, &client_len);
-	while (1)
+	for(int i=0; i<1000; ++i)
 	{
 		count = read (client_sockfd, buffer, 1024 * 1024);
 		printf ("Read %zd bytes\n", count);
 	}
+
+        while(1)
+	    sleep(1);
 }