Add vtid (gettid()) context

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

diff --git a/include/ust/lttng-ust-abi.h b/include/ust/lttng-ust-abi.h
index 56fa8b9e076767e664e0bb9db76661c182acd907..7146579129006b45995c1a27283881a1be159698 100644 (file)
--- a/include/ust/lttng-ust-abi.h
+++ b/include/ust/lttng-ust-abi.h
@@ -41,6 +41,20 @@ struct lttng_ust_channel {
        unsigned int switch_timer_interval;     /* usecs */
        unsigned int read_timer_interval;       /* usecs */
        enum lttng_ust_output output;           /* output mode */
+       /* The following fields are used internally within UST. */
+       int shm_fd;
+       int wait_fd;
+       uint64_t memory_map_size;
+};
+
+/*
+ * This structure is only used internally within UST. It is not per-se
+ * part of the communication between sessiond and UST.
+ */
+struct lttng_ust_stream {
+       int shm_fd;
+       int wait_fd;
+       uint64_t memory_map_size;
 };
 
 struct lttng_ust_event {
@@ -53,6 +67,7 @@ struct lttng_ust_event {
 
 enum lttng_ust_context_type {
        LTTNG_UST_CONTEXT_VTID                  = 0,
+       LTTNG_UST_CONTEXT_PTHREAD_ID            = 1,
 };
 
 struct lttng_ust_context {