Pass lttng_event struct to the set_filter API call

[lttng-tools.git] / src / lib / lttng-ctl / lttng-ctl.c

diff --git a/src/lib/lttng-ctl/lttng-ctl.c b/src/lib/lttng-ctl/lttng-ctl.c
index 20bb8c6fa0d358c966ebfd3a9cd2e0a836330f3e..c9fb293be1ed74411d20238ec7f94663a613041e 100644 (file)
--- a/src/lib/lttng-ctl/lttng-ctl.c
+++ b/src/lib/lttng-ctl/lttng-ctl.c
@@ -749,10 +749,10 @@ int lttng_stop_tracing_no_wait(const char *session_name)
 }
 
 /*
- * Add context to event and/or channel.
- * If event_name is NULL, the context is applied to all events of the channel.
- * If channel_name is NULL, a lookup of the event's channel is done.
- * If both are NULL, the context is applied to all events of all channels.
+ * Add context to a channel.
+ *
+ * If the given channel is NULL, add the contexts to all channels.
+ * The event_name param is ignored.
  *
  * Returns the size of the returned payload data or a negative error code.
  */
@@ -774,9 +774,6 @@ int lttng_add_context(struct lttng_handle *handle,
        /* Copy channel name */
        copy_string(lsm.u.context.channel_name, channel_name,
                        sizeof(lsm.u.context.channel_name));
-       /* Copy event name */
-       copy_string(lsm.u.context.event_name, event_name,
-                       sizeof(lsm.u.context.event_name));
 
        copy_lttng_domain(&lsm.domain, &handle->domain);
 
@@ -830,13 +827,13 @@ int lttng_enable_event(struct lttng_handle *handle,
 }
 
 /*
- * set filter for an event
+ * Set filter for an event
+ *
  * Return negative error value on error.
  * Return size of returned session payload data if OK.
  */
-
 int lttng_set_event_filter(struct lttng_handle *handle,
-               const char *event_name, const char *channel_name,
+               struct lttng_event *event, const char *channel_name,
                const char *filter_expression)
 {
        struct lttcomm_session_msg lsm;
@@ -930,8 +927,10 @@ int lttng_set_event_filter(struct lttng_handle *handle,
        copy_string(lsm.u.filter.channel_name, channel_name,
                        sizeof(lsm.u.filter.channel_name));
        /* Copy event name */
-       copy_string(lsm.u.filter.event_name, event_name,
-                       sizeof(lsm.u.filter.event_name));
+       if (event) {
+               memcpy(&lsm.u.enable.event, event, sizeof(lsm.u.enable.event));
+       }
+
        lsm.u.filter.bytecode_len = sizeof(ctx->bytecode->b)
                        + bytecode_get_len(&ctx->bytecode->b);