X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=augeas-c.c;h=2baca22ab4cbc5c3aafe772015307eade105ae39;hb=ec850ec2088f9145cea63e7d608f3c8d5074e4ef;hp=cf8e37f6fa4cafcbfd9db0bd4c0b78e3c241f219;hpb=6d2acb543a0fd92e5626cff8ab2975c5f8f4caf0;p=ocaml-augeas.git

diff --git a/augeas-c.c b/augeas-c.c
index cf8e37f..2baca22 100644
--- a/augeas-c.c
+++ b/augeas-c.c
@@ -39,6 +39,7 @@
 
 extern CAMLprim value ocaml_augeas_create (value rootv, value loadpathv, value flagsv);
 extern CAMLprim value ocaml_augeas_close (value tv);
+extern CAMLprim value ocaml_augeas_defvar (value tv, value namev, value exprv);
 extern CAMLprim value ocaml_augeas_get (value tv, value pathv);
 extern CAMLprim value ocaml_augeas_exists (value tv, value pathv);
 extern CAMLprim value ocaml_augeas_insert (value tv, value beforev, value pathv, value labelv);
@@ -242,6 +243,32 @@ ocaml_augeas_close (value tv)
   CAMLreturn (Val_unit);
 }
 
+/* val defvar : t -> string -> string option -> int option */
+CAMLprim value
+ocaml_augeas_defvar (value tv, value namev, value exprv)
+{
+  CAMLparam3 (tv, namev, exprv);
+  CAMLlocal2 (optv, v);
+  augeas_t t = Augeas_t_val (tv);
+  const char *name = String_val (namev);
+  const char *expr = Optstring_val (exprv);
+  int r;
+
+  r = aug_defvar (t, name, expr);
+  if (r > 0) {		/* Return Some val */
+    v = Val_int (r);
+    optv = caml_alloc (1, 0);
+    Field (optv, 0) = v;
+  } else if (r == 0)	/* Return None */
+    optv = Val_int (0);
+  else if (r == -1)		/* Error or multiple matches */
+    raise_error (t, "Augeas.defvar");
+  else
+    caml_failwith ("Augeas.defvar: bad return value");
+
+  CAMLreturn (optv);
+}
+
 /* val get : t -> path -> value option */
 CAMLprim value
 ocaml_augeas_get (value tv, value pathv)