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authorFlorin Coras <fcoras@cisco.com>2019-12-27 10:26:56 -0800
committerDave Barach <openvpp@barachs.net>2019-12-30 19:50:38 +0000
commitfea813ae3de5343a2bc91306fddf6dbd1832f93d (patch)
treeabb186eec7f6ed246077f24798ebd7161f731cec /src/svm/message_queue.c
parent9f3f18f99fd321cdcfc331e92b10b64f0ef590b3 (diff)
svm: broadcast on raw dequeues and full rings
Type: fix Change-Id: I0cac9001290e7ed4e2e318ae62c56e97ec75a3db Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/svm/message_queue.c')
-rw-r--r--src/svm/message_queue.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/svm/message_queue.c b/src/svm/message_queue.c
index 10266a8039c..b381173c70b 100644
--- a/src/svm/message_queue.c
+++ b/src/svm/message_queue.c
@@ -170,6 +170,7 @@ void
svm_msg_q_free_msg (svm_msg_q_t * mq, svm_msg_q_msg_t * msg)
{
svm_msg_q_ring_t *ring;
+ int need_signal;
ASSERT (vec_len (mq->rings) > msg->ring_index);
ring = &mq->rings[msg->ring_index];
@@ -183,7 +184,12 @@ svm_msg_q_free_msg (svm_msg_q_t * mq, svm_msg_q_msg_t * msg)
/* for now, expect messages to be processed in order */
ASSERT (0);
}
+
+ need_signal = ring->cursize == ring->nitems;
clib_atomic_fetch_sub (&ring->cursize, 1);
+
+ if (PREDICT_FALSE (need_signal))
+ svm_queue_send_signal (mq->q, 0);
}
static int