X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=ltt-sessiond%2Fkernel-ctl.c;h=02e87e3401b88d1e6f81b999dd71e6f81a2d4438;hp=5d70296ea82008669c6710c57a19024c4620f051;hb=f34daff7d0139d162e949f1b4fbb4cd003746b15;hpb=1b686c3f1859c4d5929e234c6e792c2bcab4cc8e

diff --git a/ltt-sessiond/kernel-ctl.c b/ltt-sessiond/kernel-ctl.c
index 5d70296ea..02e87e340 100644
--- a/ltt-sessiond/kernel-ctl.c
+++ b/ltt-sessiond/kernel-ctl.c
@@ -19,6 +19,7 @@
 #include <errno.h>
 #include <stdlib.h>
 #include <stdio.h>
+#include <string.h>
 
 #include "ltt-sessiond.h"
 #include "libkernelctl.h"
@@ -101,3 +102,42 @@ int kernel_create_channel(struct command_ctx *cmd_ctx)
 error:
 	return ret;
 }
+
+/*
+ *  kernel_enable_event
+ *
+ *  Enable kernel event.
+ */
+int kernel_enable_event(struct ltt_kernel_channel *channel, char *name)
+{
+	int ret;
+	struct ltt_kernel_event *event;
+	struct lttng_kernel_event *lke;
+
+	event = malloc(sizeof(struct ltt_kernel_event));
+	lke = malloc(sizeof(struct lttng_kernel_event));
+
+	if (event == NULL || lke == NULL) {
+		perror("kernel enable event malloc");
+		ret = -errno;
+		goto error;
+	}
+
+	/* Setting up a kernel event */
+	strncpy(lke->name, name, LTTNG_SYM_NAME_LEN);
+	lke->instrumentation = LTTNG_KERNEL_TRACEPOINTS;
+	event->event = lke;
+
+	ret = kernctl_create_event(channel->fd, lke);
+	if (ret < 0) {
+		goto error;
+	}
+
+	/* Add event to event list */
+	cds_list_add(&event->list, &channel->events_list.head);
+
+	return 0;
+
+error:
+	return ret;
+}