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| author | Sander Vrijders <sander.vrijders@ugent.be> | 2017-04-05 14:28:24 +0200 |
|---|---|---|
| committer | Sander Vrijders <sander.vrijders@ugent.be> | 2017-04-05 14:28:24 +0200 |
| commit | c5b092665c219c679ede91b3dc816c61f2f9dabe (patch) | |
| tree | e60083545da6ce0dc5fdacd06610d907b90c5aee /src/ipcpd/normal/fmgr.c | |
| parent | fa1590539e66c17902bb4f09221e6447b3233bfb (diff) | |
| download | ouroboros-c5b092665c219c679ede91b3dc816c61f2f9dabe.tar.gz ouroboros-c5b092665c219c679ede91b3dc816c61f2f9dabe.zip | |
ipcpd: Add lock for allocation requests
This adds a lock to prevent a race condition between flow_req_arr and
flow_alloc_resp.
Diffstat (limited to 'src/ipcpd/normal/fmgr.c')
| -rw-r--r-- | src/ipcpd/normal/fmgr.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/ipcpd/normal/fmgr.c b/src/ipcpd/normal/fmgr.c index 19653430..56f1e099 100644 --- a/src/ipcpd/normal/fmgr.c +++ b/src/ipcpd/normal/fmgr.c @@ -619,10 +619,12 @@ int fmgr_np1_post_buf(cep_id_t cep_id, switch (msg->code) { case FLOW_ALLOC_CODE__FLOW_REQ: + pthread_mutex_lock(&ipcpi.alloc_lock); fd = ipcp_flow_req_arr(getpid(), msg->dst_name, msg->qoscube); if (fd < 0) { + pthread_mutex_unlock(&ipcpi.alloc_lock); flow_alloc_msg__free_unpacked(msg, NULL); log_err("Failed to get fd for flow."); return -1; @@ -634,6 +636,7 @@ int fmgr_np1_post_buf(cep_id_t cep_id, fmgr.np1_cep_id_to_fd[cep_id] = fd; pthread_rwlock_unlock(&fmgr.np1_flows_lock); + pthread_mutex_unlock(&ipcpi.alloc_lock); break; case FLOW_ALLOC_CODE__FLOW_REPLY: |