Add jul-app ABI/API and handle registration

[lttng-tools.git] / src / bin / lttng-sessiond / ust-app.h

diff --git a/src/bin/lttng-sessiond/ust-app.h b/src/bin/lttng-sessiond/ust-app.h
index edec8d49639eb25b61f02664847e9ef2cea29def..249d568d1fb66f31aaf15cd65fe786e0c17f398e 100644 (file)
--- a/src/bin/lttng-sessiond/ust-app.h
+++ b/src/bin/lttng-sessiond/ust-app.h
@@ -21,6 +21,8 @@
 #include <stdint.h>
 
 #include <common/compat/uuid.h>
+
+#include "jul.h"
 #include "trace-ust.h"
 #include "ust-registry.h"
 
@@ -259,6 +261,13 @@ struct ust_app {
         * Hash table containing ust_app_channel indexed by channel objd.
         */
        struct lttng_ht *ust_objd;
+       /*
+        * If this application is of the JUL domain and this is non negative then a
+        * lookup MUST be done to acquire a read side reference to the
+        * corresponding JUL app object. If the lookup fails, this should be set to
+        * a negative value indicating that the JUL application is gone.
+        */
+       int jul_app_sock;
 };
 
 #ifdef HAVE_LIBLTTNG_UST_CTL
@@ -320,6 +329,7 @@ void ust_app_destroy(struct ust_app *app);
 int ust_app_snapshot_record(struct ltt_ust_session *usess,
                struct snapshot_output *output, int wait, unsigned int nb_streams);
 unsigned int ust_app_get_nb_stream(struct ltt_ust_session *usess);
+struct ust_app *ust_app_find_by_sock(int sock);
 
 static inline
 int ust_app_supported(void)
@@ -540,6 +550,11 @@ int ust_app_supported(void)
 {
        return 0;
 }
+static inline
+struct ust_app *ust_app_find_by_sock(int sock)
+{
+       return NULL;
+}
 
 #endif /* HAVE_LIBLTTNG_UST_CTL */