[dpdk-dev] [RFC 2/8] ipc: fix timeout not properly handled in async

[Jianfeng Tan]

In original implementation, timeout event for an async request
will be ignored. As a result, an async request will never
trigger the action if it cannot receive any reply any more.

We fix this by counting timeout as a processed reply.

Fixes: f05e26051c15 ("eal: add IPC asynchronous request")

Signed-off-by: Jianfeng Tan <jianfeng.tan at intel.com>
Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>
---
 lib/librte_eal/common/eal_common_proc.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/librte_eal/common/eal_common_proc.c b/lib/librte_eal/common/eal_common_proc.c
index 070a075..27de16e 100644
--- a/lib/librte_eal/common/eal_common_proc.c
+++ b/lib/librte_eal/common/eal_common_proc.c
@@ -419,7 +419,13 @@ process_async_request(struct pending_request *sr, const struct timespec *now)
 	} else if (sr->reply_received == -1) {
 		/* we were asked to ignore this process */
 		reply->nb_sent--;
+	} else if (timeout) {
+		/* count it as processed reponse, but don't increment
+		 * nb_received.
+		 */
+		param->n_responses_processed++;
 	}
+
 	free(sr->reply);
 
 	last_msg = param->n_responses_processed == reply->nb_sent;
-- 
2.7.4