jasmine(Just A Simple Multicast engINE) Initial mergev1.0.2

Change-Id: I7a543019c8d92314ef549bf72369b7276f39577d
Signed-off-by: Zhijiang Hu <hu.zhijiang@zte.com.cn>

1 files changed, 64 insertions, 0 deletions

diff --git a/code/jasmine/buffer.h b/code/jasmine/buffer.h
new file mode 100755
index 00000000..e899fe62
--- /dev/null
+++ b/code/jasmine/buffer.h
@@ -0,0 +1,64 @@
+/*##############################################################################
+# Copyright (c) 2017 ZTE Coreporation and others.
+# hu.zhijiang@zte.com.cn
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################*/
+
+#ifndef _MCAST_BUFFER_H
+#define _MCAST_BUFFER_H
+
+#include <unistd.h>
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+
+#define MTU 1500
+
+#define PACKET_SIZE ((MTU) - sizeof(struct iphdr) - sizeof(struct udphdr))
+
+/* Exclude padding */
+#define PACKET_PAYLOAD_SIZE (((PACKET_SIZE) - sizeof(struct packet_ctl)) & ~0x3)
+
+#define PACKETS_PER_BUFFER 1024
+
+#define DEF_PORT 18383 /* for both UDP and TCP */
+
+/* Buffer header (align to 4 Byte) */
+struct buffer_ctl {
+    uint32_t buffer_id;
+    uint32_t buffer_size;
+    uint32_t packet_id_base;
+    uint32_t pkt_count;
+};
+
+/* Packet header (align to 4 Byte) */
+struct packet_ctl {
+    uint32_t seq;
+    uint32_t crc;
+    uint32_t data_size;
+    uint8_t data[0];
+};
+
+#define CLIENT_READY 0x1
+#define CLIENT_REQ 0x2
+#define CLIENT_DONE 0x4
+#define SERVER_SENT 0x8
+
+/* Retransmition Request Header (align to 4 Byte) */
+struct request_ctl {
+    uint32_t req_count; /* Requested packet slot count */
+};
+
+extern struct buffer_ctl buffctl;
+extern struct packet_ctl *packetctl[PACKETS_PER_BUFFER];
+
+void buffer_init();
+long buffer_fill(int fd);
+long buffer_flush(int fd);
+struct packet_ctl *packet_put(struct packet_ctl *new_pkt);
+struct packet_ctl *packet_get(uint32_t seq);
+void packetctl_precheck();
+
+#endif