Introduce LTTNG_UST_ALLOW_BLOCKING env. var.

[deliverable/lttng-ust.git] / include / lttng / ust-abi.h

diff --git a/include/lttng/ust-abi.h b/include/lttng/ust-abi.h
index f76d2a9fa5c6b25c3d99b96a21314eb1ed86d227..4976b1bf61ce4786c1288933e29f0f4dcb6fb315 100644 (file)
--- a/include/lttng/ust-abi.h
+++ b/include/lttng/ust-abi.h
@@ -177,7 +177,12 @@ struct lttng_ust_channel_attr {
        unsigned int switch_timer_interval;     /* usec */
        unsigned int read_timer_interval;       /* usec */
        enum lttng_ust_output output;           /* splice, mmap */
-       char padding[LTTNG_UST_CHANNEL_ATTR_PADDING];
+       union {
+               struct {
+                       int64_t blocking_timeout;       /* Blocking timeout (usec) */
+               } s;
+               char padding[LTTNG_UST_CHANNEL_ATTR_PADDING];
+       } u;
 } LTTNG_PACKED;
 
 #define LTTNG_UST_TRACEPOINT_ITER_PADDING      16