ffi: add two tests based on glob function.

One approach captures the paths as a carray of
strings, and explicitly frees it with globfree.
The other approach uses a zarray, taking advantage
of null termination. globfree is elided because TXR FFI
does the freeing; the types used declare to it that it
is taking ownership of a dynamically allocated vector of
dynamically allocated strings, and so it performs the
equivalent of globfree.

* tests/017/glob-carray.expected: New file.

* tests/017/glob-carray.tl: Likewise.

* tests/017/glob-zarray.expected: Likewise.

* tests/017/glob-zarray.tl: Likewise.

1 files changed, 17 insertions, 0 deletions

diff --git a/tests/017/glob-zarray.tl b/tests/017/glob-zarray.tl
new file mode 100644
index 00000000..b6e16d13
--- /dev/null
+++ b/tests/017/glob-zarray.tl
@@ -0,0 +1,17 @@
+(load "../common")
+
+(defstruct glob-t nil
+  pathc pathv reserve)
+
+(deffi-type glob-t (struct glob-t
+                     (pathc size-t)
+                     (pathv (ptr-out-d (zarray str-d)))
+                     (reserve size-t)))
+
+(with-dyn-lib (libc)
+  (deffi globb "glob" int (str int closure (ptr-out glob-t)))
+  (deffi-cb glob-cb int (str int) -1))
+
+(let* ((g (new glob-t)))
+  (prinl (globb "tests/001/*.txr" 0 (glob-cb (lambda (path err))) g))
+  (prinl g))