meter: enforce presence of a max size

meters are updated dynamically, so we don't know in advance
how large this structure can be.

Add a 'size' keyword to specifiy an upper limit and update
the old syntax to assume a default max value of 65535.

Signed-off-by: Florian Westphal <fw@strlen.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/statement.h b/include/statement.h
index fa0b5dfa..7315e7ae 100644
--- a/include/statement.h
+++ b/include/statement.h
@@ -178,6 +178,7 @@ struct meter_stmt {
 	struct expr		*key;
 	struct stmt		*stmt;
 	const char		*name;
+	uint32_t		size;
 };
 
 extern struct stmt *meter_stmt_alloc(const struct location *loc);