diff options
| author |   Florin Coras <fcoras@cisco.com> | 2024-12-07 16:20:46 -0500 |
|---|---|---|
| committer | Florin Coras <fcoras@cisco.com> | 2024-12-07 16:27:22 -0500 |
| commit | 4e271dda7b7177e73199b0ccdbf047c0bb55714d (patch) | |
| tree | 65e802d312d00c540adb6e4f76c1ec16bdb625de /src/vcl | |
| parent | b8af24b26d3e1cd2240a9c2ee11340ba9b696f6c (diff) | |
vcl: improve handling of thread cancelation in vls
Meant for multi-threaded applications that share a vls and vcl worker.
Disable thread cancelation on thread new thread detection and add a new
pthread cancelation point in vls_mt_mq_lock
Type: improvement
Change-Id: I21b16ee7c6a5ec31b8f6363325cc7ffa463c7b5c
Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vcl')
| -rw-r--r-- | src/vcl/vcl_locked.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/vcl/vcl_locked.c b/src/vcl/vcl_locked.c index bae1c0d86b3..f8a306c1ba1 100644 --- a/src/vcl/vcl_locked.c +++ b/src/vcl/vcl_locked.c @@ -301,11 +301,18 @@ vls_mt_add (void) } else vcl_set_worker_index (vlsl->vls_wrk_index); + + /* Only allow new pthread to be cancled in vls_mt_mq_lock */ + int old_state; + if (vlsl->vls_mt_n_threads >= 2) + pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &old_state); } static inline void vls_mt_mq_lock (void) { + /* Allow controlled cancelation of thread before grabbing mutex */ + pthread_testcancel (); pthread_mutex_lock (&vlsl->vls_mt_mq_mlock); } |