session: add support for multiple app workers
[vpp.git] / src / svm / queue.h
index 3e8031e..de79caa 100644 (file)
@@ -39,12 +39,13 @@ typedef struct _svm_queue
 
 typedef enum
 {
-  SVM_Q_WAIT = 0,      /**< blocking call - must be used only in combination
-                            with condvars */
+  SVM_Q_WAIT = 0,      /**< blocking call - best used in combination with
+                            condvars, for eventfds we don't yield the cpu */
   SVM_Q_NOWAIT,                /**< non-blocking call - works with both condvar and
                             eventfd signaling */
   SVM_Q_TIMEDWAIT,     /**< blocking call, returns on signal or time-out -
-                            must be used only in combination with condvars */
+                            best used in combination with condvars, with
+                            eventfds we don't yield the cpu */
 } svm_q_conditional_wait_t;
 
 /**