Changeset 32105348 in mainline for uspace/srv/net/tl/tcp/segment.c

Timestamp:

2011-10-04T18:12:41Z (13 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d9ce049

Parents:

032bbe7

Message:

Send buffer, sketch data transmission.

File:

• uspace/srv/net/tl/tcp/segment.c (modified) (2 diffs)

uspace/srv/net/tl/tcp/segment.c

@@ -53 +53 @@
 }
 
-/** Create a control segment.
- *
-  * @return     Control segment
+/** Create a control-only segment.
+ *
+  * @return     Segment
  */
 tcp_segment_t *tcp_segment_make_ctrl(tcp_control_t ctrl)
@@ -89 +89 @@
         return rseg;
 }
+
+/** Create a control segment.
+ *
+  * @return     Segment
+ */
+tcp_segment_t *tcp_segment_make_data(tcp_control_t ctrl, void *data,
+    size_t size)
+{
+        tcp_segment_t *seg;
+
+        assert(size > 0);
+
+        seg = tcp_segment_new();
+        if (seg == NULL)
+                return NULL;
+
+        seg->ctrl = ctrl;
+        seg->len = seq_no_control_len(ctrl) + size;
+
+        seg->dfptr = seg->data = malloc(size);
+        if (seg->dfptr == NULL) {
+                free(seg);
+                return NULL;
+        }
+
+        memcpy(seg->data, data, size);
+
+        return seg;
+}
+
 
 /** Trim segment from left and right by the specified amount.