Open 2.0 development tree

[qemu.git] / slirp / sbuf.c

diff --git a/slirp/sbuf.c b/slirp/sbuf.c
index 2e6e2b2140cd5ae9185575c4424dea6f4f958855..08ec2b4f44d0db2d0894cc6176a0923b5424a8ad 100644 (file)
--- a/slirp/sbuf.c
+++ b/slirp/sbuf.c
@@ -6,29 +6,21 @@
  */
 
 #include <slirp.h>
+#include <qemu/main-loop.h>
 
 static void sbappendsb(struct sbuf *sb, struct mbuf *m);
 
-/* Done as a macro in socket.h */
-/* int
- * sbspace(struct sockbuff *sb)
- * {
- *     return SB_DATALEN - sb->sb_cc;
- * }
- */
-
 void
-sbfree(sb)
-       struct sbuf *sb;
+sbfree(struct sbuf *sb)
 {
        free(sb->sb_data);
 }
 
 void
-sbdrop(sb, num)
-       struct sbuf *sb;
-       int num;
+sbdrop(struct sbuf *sb, int num)
 {
+    int limit = sb->sb_datalen / 2;
+
        /*
         * We can only drop how much we have
         * This should never succeed
@@ -40,12 +32,13 @@ sbdrop(sb, num)
        if(sb->sb_rptr >= sb->sb_data + sb->sb_datalen)
                sb->sb_rptr -= sb->sb_datalen;
 
+    if (sb->sb_cc < limit && sb->sb_cc + num >= limit) {
+        qemu_notify_event();
+    }
 }
 
 void
-sbreserve(sb, size)
-       struct sbuf *sb;
-       int size;
+sbreserve(struct sbuf *sb, int size)
 {
        if (sb->sb_data) {
                /* Already alloced, realloc if necessary */
@@ -74,9 +67,7 @@ sbreserve(sb, size)
  * (the socket is non-blocking, so we won't hang)
  */
 void
-sbappend(so, m)
-       struct socket *so;
-       struct mbuf *m;
+sbappend(struct socket *so, struct mbuf *m)
 {
        int ret = 0;
 
@@ -173,11 +164,7 @@ sbappendsb(struct sbuf *sb, struct mbuf *m)
  * done in sbdrop when the data is acked
  */
 void
-sbcopy(sb, off, len, to)
-       struct sbuf *sb;
-       int off;
-       int len;
-       char *to;
+sbcopy(struct sbuf *sb, int off, int len, char *to)
 {
        char *from;