From 7fb1cf1606c78c9d5b538f29176fd5a101726a9d Mon Sep 17 00:00:00 2001 From: Eric Blake Date: Wed, 18 Nov 2015 01:52:57 -0700 Subject: qapi: Don't let implicit enum MAX member collide Now that we guarantee the user doesn't have any enum values beginning with a single underscore, we can use that for our own purposes. Renaming ENUM_MAX to ENUM__MAX makes it obvious that the sentinel is generated. This patch was mostly generated by applying a temporary patch: |diff --git a/scripts/qapi.py b/scripts/qapi.py |index e6d014b..b862ec9 100644 |--- a/scripts/qapi.py |+++ b/scripts/qapi.py |@@ -1570,6 +1570,7 @@ const char *const %(c_name)s_lookup[] = { | max_index = c_enum_const(name, 'MAX', prefix) | ret += mcgen(''' | [%(max_index)s] = NULL, |+// %(max_index)s | }; | ''', | max_index=max_index) then running: $ cat qapi-{types,event}.c tests/test-qapi-types.c | sed -n 's,^// \(.*\)MAX,s|\1MAX|\1_MAX|g,p' > list $ git grep -l _MAX | xargs sed -i -f list The only things not generated are the changes in scripts/qapi.py. Rejecting enum members named 'MAX' is now useless, and will be dropped in the next patch. Signed-off-by: Eric Blake Message-Id: <1447836791-369-23-git-send-email-eblake@redhat.com> Reviewed-by: Juan Quintela [Rebased to current master, commit message tweaked] Signed-off-by: Markus Armbruster --- migration/migration.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'migration/migration.c') diff --git a/migration/migration.c b/migration/migration.c index adc6b6f1c9..c842499575 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -202,7 +202,7 @@ static int global_state_post_load(void *opaque, int version_id) s->received = true; trace_migrate_global_state_post_load(runstate); - r = qapi_enum_parse(RunState_lookup, runstate, RUN_STATE_MAX, + r = qapi_enum_parse(RunState_lookup, runstate, RUN_STATE__MAX, -1, &local_err); if (r == -1) { @@ -479,7 +479,7 @@ MigrationCapabilityStatusList *qmp_query_migrate_capabilities(Error **errp) int i; caps = NULL; /* silence compiler warning */ - for (i = 0; i < MIGRATION_CAPABILITY_MAX; i++) { + for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) { if (head == NULL) { head = g_malloc0(sizeof(*caps)); caps = head; -- cgit v1.2.3