diff options
| author |   Florin Coras <fcoras@cisco.com> | 2019-07-25 14:51:09 -0700 |
|---|---|---|
| committer |   Dave Barach <openvpp@barachs.net> | 2019-07-29 20:46:46 +0000 |
| commit | 2b5fed8696ce2a9b67e63cf5b5dbf49505172c9a (patch) | |
| tree | e737297817caba79e3657b1c101d41b9802a7bf9 /src/svm | |
| parent | 1a3d2370b53bcdb13581d8be0d9410974b9966c3 (diff) | |
session: fix vpp to app msg generation
Type:fix
Freeing mq messages in vpp (producer), if enqueueing fails, invalidates
consumer assumption that messages can be freed without a lock.
Change-Id: I748a33b8846597bdad865945d8e899346d482434
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Tal Saiag <tal.saiag@gmail.com>
Diffstat (limited to 'src/svm')
| -rw-r--r-- | src/svm/message_queue.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/svm/message_queue.c b/src/svm/message_queue.c index 630442064f8..a40c4a46a39 100644 --- a/src/svm/message_queue.c +++ b/src/svm/message_queue.c @@ -120,7 +120,8 @@ svm_msg_q_lock_and_alloc_msg_w_ring (svm_msg_q_t * mq, u32 ring_index, { if (svm_msg_q_try_lock (mq)) return -1; - if (PREDICT_FALSE (svm_msg_q_ring_is_full (mq, ring_index))) + if (PREDICT_FALSE (svm_msg_q_is_full (mq) + || svm_msg_q_ring_is_full (mq, ring_index))) { svm_msg_q_unlock (mq); return -2; @@ -135,7 +136,8 @@ svm_msg_q_lock_and_alloc_msg_w_ring (svm_msg_q_t * mq, u32 ring_index, else { svm_msg_q_lock (mq); - while (svm_msg_q_ring_is_full (mq, ring_index)) + while (svm_msg_q_is_full (mq) + || svm_msg_q_ring_is_full (mq, ring_index)) svm_msg_q_wait (mq); *msg = svm_msg_q_alloc_msg_w_ring (mq, ring_index); } |