From eefc5a8e868259daa84ff8ff8b2e98c7ba411431 Mon Sep 17 00:00:00 2001
From: erubow <erubow>
Date: Tue, 20 Feb 2007 19:57:38 +0000
Subject: [PATCH] Adding server.c, a simple multithreaded server that spits out
 received data.

---
 Robust/src/Runtime/DSTM/interface/server.c | 105 +++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 Robust/src/Runtime/DSTM/interface/server.c

diff --git a/Robust/src/Runtime/DSTM/interface/server.c b/Robust/src/Runtime/DSTM/interface/server.c
new file mode 100644
index 00000000..1f7774fa
--- /dev/null
+++ b/Robust/src/Runtime/DSTM/interface/server.c
@@ -0,0 +1,105 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <pthread.h>
+#include <netdb.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#define LISTEN_PORT 2153
+#define BACKLOG 10 //max pending connections
+#define RECIEVE_BUFFER_SIZE 1500
+
+void *dstm_listen();
+void *dstm_accept(void *);
+
+int main()
+{
+	pthread_t thread_listen;
+
+	pthread_create(&thread_listen, NULL, dstm_listen, NULL);	
+
+	pthread_join(thread_listen, NULL);
+	return 0;
+}
+
+void *dstm_listen()
+{
+	int listenfd, acceptfd;
+	struct sockaddr_in my_addr;
+	struct sockaddr_in client_addr;
+	socklen_t addrlength = sizeof(struct sockaddr);
+	pthread_t thread_dstm_accept;
+	int i;
+
+	listenfd = socket(PF_INET, SOCK_STREAM, 0);
+	if (listenfd == -1)
+	{
+		perror("socket");
+		exit(1);
+	}
+
+	my_addr.sin_family = AF_INET;
+	my_addr.sin_port = htons(LISTEN_PORT);
+	my_addr.sin_addr.s_addr = INADDR_ANY;
+	memset(&(my_addr.sin_zero), '\0', 8);
+
+	if (bind(listenfd, (struct sockaddr *)&my_addr, addrlength) == -1)
+	{
+		perror("bind");
+		exit(1);
+	}
+	
+	if (listen(listenfd, BACKLOG) == -1)
+	{
+		perror("listen");
+		exit(1);
+	}
+
+	printf("Listening on port %d, fd = %d\n", LISTEN_PORT, listenfd);
+	while(1)
+	{
+		acceptfd = accept(listenfd, (struct sockaddr *)&client_addr, &addrlength);
+		pthread_create(&thread_dstm_accept, NULL, dstm_accept, (void *)acceptfd);
+	}
+	pthread_exit(NULL);
+}
+
+void *dstm_accept(void *acceptfd)
+{
+	int numbytes;
+	char buffer[RECIEVE_BUFFER_SIZE];
+	int fd_flags = fcntl((int)acceptfd, F_GETFD);
+	printf("Recieved connection: fd = %d\n", (int)acceptfd);
+	do
+	{
+		numbytes = recv((int)acceptfd, (void *)buffer, sizeof(buffer), 0);
+		buffer[numbytes] = '\0';
+		if (numbytes == -1)
+		{
+			perror("recv");
+			pthread_exit(NULL);
+		}
+		else
+		{
+			printf("Read %d bytes from %d\n", numbytes, (int)acceptfd);
+			printf("%s", buffer);
+		}
+		
+	} while (numbytes != 0);
+	if (close((int)acceptfd) == -1)
+	{
+		perror("close");
+		pthread_exit(NULL);
+	}
+	else
+		printf("Closed connection: fd = %d\n", (int)acceptfd);
+	pthread_exit(NULL);
+}
+
+
+	
-- 
2.34.1