api: enforce vla is last and fixed string type
Enforce that variable length fields are the last element of API messages.
Add a 'fixed' version of string type, since dealing with
multiple variable length strings turned out too painful
for the C language bindings.
The string type is now:
{
string name[64]; // NUL terminated C-string. Essentially decays to u8 name[64]
string name[]; // Variable length string with embedded len field (vl_api_string_t)
};
The latter notation could be made available to other types as well.
e.g.
{
vl_api_address_t addresses[];
}
instead of
{
u32 n_addr;
vl_api_address_t addresses[n_addr];
};
Type: fix
Change-Id: I18fa17ef47227633752ab50453e8d20a652a9f9b
Signed-off-by: Ole Troan <ot@cisco.com>
diff --git a/test/ext/vapi_cpp_test.cpp b/test/ext/vapi_cpp_test.cpp
index 46a2c0e..284b211 100644
--- a/test/ext/vapi_cpp_test.cpp
+++ b/test/ext/vapi_cpp_test.cpp
@@ -49,11 +49,8 @@
auto &p = r.get_payload ();
printf ("show_version_reply: program: `%s', version: `%s', build directory: "
"`%s', build date: `%s'\n",
- vl_api_from_api_string (&p.program),
- vl_api_from_api_string (&p.version),
- vl_api_from_api_string (&p.build_directory),
- vl_api_from_api_string (&p.build_date));
- ck_assert_str_eq ("vpe", (char *)vl_api_from_api_string (&p.program));
+ p.program, p.version, p.build_directory, p.build_date);
+ ck_assert_str_eq ("vpe", (char *)p.program);
}
Connection con;