CC=gcc
CFLAGS=-g
-build: client server
+build: client server client_lf server_lf
client: client.o
server: server.o
+client_lf: client_lf.o
+
+server_lf: server_lf.o
+
client.o: client.c
server.o: server.c
+
+client_lf.o: client_lf.c
+
+server_lf.o: server_lf.c
--- /dev/null
+#include "../src/kernel/swift.h"
+
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <stdio.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <stdlib.h>
+#include <fcntl.h>
+
+#define ADDR 0x80BEA8C0
+#define DADDR 0x81BEA8C0
+
+int main(int argc, const char *argv[])
+{
+ int sock;
+
+ sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_SWIFT);
+ if (sock < 0) {
+ perror("Failed to create socket");
+ return -1;
+ }
+
+ int size = sizeof(struct sockaddr_swift) + sizeof(struct swift_dest);
+ struct sockaddr_swift *saddr = malloc(size);
+ memset(saddr, 0, size);
+
+ saddr->count = 1;
+ saddr->dests[0].addr = ADDR;
+ saddr->dests[0].port = 50;
+
+ if (bind(sock, (struct sockaddr *) saddr, size) < 0) {
+ perror("Failed to bind socket");
+ close(sock);
+ return -1;
+ }
+
+ int fd = open("large_file", O_RDONLY);
+ if (fd < 0) {
+ perror("Failed to open file");
+ close(sock);
+ return -1;
+ }
+
+ char buf[8192];
+ struct iovec iov[2];
+ struct msghdr msg;
+ int size2 = sizeof(struct sockaddr_swift) + 2 * sizeof(struct swift_dest);
+ struct sockaddr_swift *to = malloc(size2);
+
+ memset(&msg, 0, sizeof(msg));
+ memset(&iov, 0, sizeof(iov));
+ memset(to, 0, size2);
+
+ iov[0].iov_base = buf;
+ iov[1].iov_base = buf;
+
+ to->count = 2;
+ to->dests[0].addr = DADDR;
+ to->dests[0].port = 100;
+ to->dests[1].addr = DADDR;
+ to->dests[1].port = 101;
+
+ msg.msg_iov = iov;
+ msg.msg_iovlen = 2;
+ msg.msg_name = to;
+ msg.msg_namelen = size2;
+
+ while (1) {
+ int ret;
+
+ ret = read(fd, buf, 8192, 0);
+ if (ret == 0)
+ break;
+ if (ret < 0) {
+ perror("Failed to read from file");
+ return -1;
+ }
+ iov[0].iov_len = ret;
+ iov[1].iov_len = ret;
+
+ ret = sendmsg(sock, &msg, sizeof(msg));
+ if (ret < 0) {
+ perror("Failed to send on socket");
+ return -1;
+ }
+
+ printf("Sent %d bytes on socket\n", msg.msg_namelen);
+ }
+
+ if (close(sock) < 0) {
+ perror("Failed to close socket");
+ close(fd);
+ return -1;
+ }
+
+ close(fd);
+
+ free(saddr);
+ free(to);
+ return 0;
+}
--- /dev/null
+#include "../src/kernel/swift.h"
+
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <stdio.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <stdlib.h>
+#include <fcntl.h>
+
+#define ADDR 0x80BEA8C0
+
+int main(int argc, const char *argv[])
+{
+ int sock;
+
+ if (argc != 3) {
+ fprintf(stderr, "USAGE: %s listening_port output_file_name\n", argv[0]);
+ return -1;
+ }
+
+ sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_SWIFT);
+ if (sock < 0) {
+ perror("Failed to create socket");
+ return -1;
+ }
+
+ int size = sizeof(struct sockaddr_swift) + sizeof(struct swift_dest);
+ struct sockaddr_swift *saddr = malloc(size);
+ memset(saddr, 0, size);
+
+ saddr->count = 1;
+ saddr->dests[0].addr = ADDR;
+ saddr->dests[0].port = atoi(argv[1]);
+
+ if (bind(sock, (struct sockaddr *) saddr, size) < 0) {
+ perror("Failed to bind socket");
+ close(sock);
+ return -1;
+ }
+
+ int fd = open(argv[2], O_RDWR);
+ if (fd < 0) {
+ perror("Failed to open file");
+ close(sock);
+ return -1;
+ }
+
+ char buf[8192];
+ struct iovec iov[1];
+ struct msghdr msg;
+ struct sockaddr_swift *from = malloc(size);
+
+ memset(&msg, 0, sizeof(msg));
+ memset(&iov, 0, sizeof(iov));
+ memset(from, 0, size);
+
+ iov[0].iov_base = buf;
+ iov[0].iov_len = sizeof(buf);
+
+ msg.msg_iov = iov;
+ msg.msg_iovlen = 1;
+ msg.msg_name = from;
+ msg.msg_namelen = size;
+
+ while (1) {
+ int ret, fromlen;
+
+ ret = recvmsg(sock, &msg, 0);
+ if (ret < 0) {
+ perror("Failed to recv on socket");
+ close(fd);
+ return -1;
+ }
+
+ ret = write(fd, buf, ret, 0);
+ if (ret < 0) {
+ perror("Failed to write in file");
+ close(fd);
+ return -1;
+ }
+
+ printf("Received %d bytes on socket\n", ret);
+ printf("buf=%s\n", buf);
+
+ if (ret < 8192)
+ break;
+ }
+
+ if (close(sock) < 0) {
+ perror("Failed to close socket");
+ close(fd);
+ return -1;
+ }
+
+ close(fd);
+
+ free(saddr);
+ free(from);
+
+ return 0;
+}