io: implement pre- and post-order directory traversal for windows

io-test/tree.c

@@ -0,0 +1,32 @@
+#include <blue/io/directory.h>
+#include <stdio.h>
+
+#define NRAND_NUMBERS 12
+#define NRAND_BYTES   128
+#define NRAND_DOUBLES 8
+
+int main(int argc, const char **argv)
+{
+	if (argc < 2) {
+		return -1;
+	}
+
+	b_directory *dir = NULL;
+	b_path *path = b_path_create_from_cstr(argv[1]);
+	b_status status = b_directory_open(B_DIRECTORY_ROOT, path, &dir);
+
+	if (!B_OK(status)) {
+		printf("cannot open %s\n", b_path_ptr(path));
+		printf("%s\n", b_status_to_string(status));
+		return -1;
+	}
+
+	b_directory_iterator it = {0};
+	b_directory_iterator_begin(dir, &it, B_DIRECTORY_ITERATE_PARENT_FIRST);
+	while (b_directory_iterator_is_valid(&it)) {
+		printf("%s\n", it.filename);
+		b_directory_iterator_next(&it);
+	}
+
+	return 0;
+}