Check for context name duplicata

[lttng-modules.git] / ltt-events.h

diff --git a/ltt-events.h b/ltt-events.h
index 4d4eea935aa6ab62c12063d1ab9c593f9d66eae4..1307c36b6d0b8b7ca56014a5cb3f3078a283f3e0 100644 (file)
--- a/ltt-events.h
+++ b/ltt-events.h
@@ -284,6 +284,7 @@ void ltt_event_put(const struct lttng_event_desc *desc);
 int ltt_probes_init(void);
 void ltt_probes_exit(void);
 struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx);
+int lttng_find_context(struct lttng_ctx *ctx, const char *name);
 void lttng_remove_context_field(struct lttng_ctx **ctx,
                                struct lttng_ctx_field *field);
 void lttng_destroy_context(struct lttng_ctx *ctx);
@@ -296,10 +297,21 @@ int lttng_add_tid_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_ppid_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_vppid_to_ctx(struct lttng_ctx **ctx);
+#ifdef CONFIG_PERF_EVENTS
 int lttng_add_perf_counter_to_ctx(uint32_t type,
                                  uint64_t config,
                                  const char *name,
                                  struct lttng_ctx **ctx);
+#else
+static inline
+int lttng_add_perf_counter_to_ctx(uint32_t type,
+                                 uint64_t config,
+                                 const char *name,
+                                 struct lttng_ctx **ctx)
+{
+       return -ENOSYS;
+}
+#endif
 
 #ifdef CONFIG_KPROBES
 int lttng_kprobes_register(const char *name,