# HG changeset patch
# User Jim Ursetto <jim@3e8.org>
# Date 1329005031 21600
# Node ID 6283ea4b16138c7e06bba7987620a10203cd06f0
# Parent  71549a2c37f7bf8a29006dde81cf5d15f45f64d4
add unix-pair

diff --git a/unix-sockets.scm b/unix-sockets.scm
--- a/unix-sockets.scm
+++ b/unix-sockets.scm
@@ -42,7 +42,8 @@
    unix-listener-fileno unix-listener-path
    unix-close
    unix-listener?
-   unix-listen)
+   unix-listen
+   unix-pair)
 
 ;; TODO: errno should be accessed using the proper API?
 (import scheme (except chicken errno) easyffi foreign)
@@ -126,6 +127,19 @@
 
   return s2;
 }
+
+static int
+create_socket_pair(___out int *s2)
+{
+  int s1, rc;
+  int pair[2];
+  rc = socketpair(PF_LOCAL, SOCK_STREAM, 0, pair);
+  if (rc < 0) return -1;
+  s1 = pair[0];
+  *s2 = pair[1];
+  return s1;
+}
+
 <#
 
 
@@ -152,6 +166,14 @@
 	(unix-error 'unix-connect "can not connect" filename)
 	(io-ports 'unix-connect n) ) ) )
 
+(define (unix-pair)
+  (let-values (((s1 s2) (create_socket_pair)))
+    (if (negative? s1)
+        (unix-error 'unix-pair "cannot create socket pair")
+        (let-values (((i1 o1) (io-ports 'unix-pair s1))
+                     ((i2 o2) (io-ports 'unix-pair s2)))
+          (values i1 o1 i2 o2)))))
+
 (define-constant +buffer-size+ 1024)
 
 (define make-nonblocking
# HG changeset patch
# User Jim Ursetto <jim@3e8.org>
# Date 1329005059 21600
# Node ID 6ed0828a79bdde0c2d01a0fc0add6efa2766cd51
# Parent  6283ea4b16138c7e06bba7987620a10203cd06f0
bump to 1.7

diff --git a/unix-sockets.setup b/unix-sockets.setup
--- a/unix-sockets.setup
+++ b/unix-sockets.setup
@@ -7,4 +7,4 @@
 (install-extension
  'unix-sockets
  '("unix-sockets.so" "unix-sockets.import.so") 
- '((version 1.6)))
+ '((version 1.7)))