From 3b82d1514d30db14823849a978d7fab5989f9762 Mon Sep 17 00:00:00 2001 From: Alice Frosi Date: Thu, 16 Feb 2023 13:48:40 +0100 Subject: actions: add reference to a_return The action return can return either a constant value or a reference to a value. Signed-off-by: Alice Frosi --- actions.c | 10 +++++++++- gluten.h | 11 ++++++++++- 2 files changed, 19 insertions(+), 2 deletions(-) diff --git a/actions.c b/actions.c index bb31732..0366916 100644 --- a/actions.c +++ b/actions.c @@ -198,7 +198,15 @@ int do_actions(struct action actions[], unsigned int n_actions, int pid, resp.id = id; resp.flags = 0; resp.error = 0; - resp.val = actions[i].ret.value; + if (actions[i].ret.type == IMMEDIATE) { + resp.val = actions[i].ret.value; + } else if (actions[i].ret.value_p != NULL) { + resp.val = *(actions[i].ret.value_p); + } else { + fprintf(stderr, "empty reference for the return value"); + return -1; + } + if (send_target(&resp, notifyfd) == -1) return -1; break; diff --git a/gluten.h b/gluten.h index c6cac3c..ae5e212 100644 --- a/gluten.h +++ b/gluten.h @@ -52,6 +52,11 @@ enum action_type { A_RETURN, }; +enum value_type { + IMMEDIATE, + REFERENCE, +}; + struct act_call { long nr; void *args[6]; @@ -67,7 +72,11 @@ struct act_continue { }; struct act_return { - int64_t value; + enum value_type type; + union { + int64_t value; + int64_t *value_p; + }; }; struct act_inject { -- cgit v1.2.3