Fix: cmd_rotate_session() returns unexpected error codes

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

diff --git a/src/bin/lttng-sessiond/kernel.h b/src/bin/lttng-sessiond/kernel.h
index a916f68411244fb5b6fdb9773e5f04ae700107f0..e9024a83e975290b53b9f624d8e8cc8060984f0d 100644 (file)
--- a/src/bin/lttng-sessiond/kernel.h
+++ b/src/bin/lttng-sessiond/kernel.h
@@ -1,25 +1,25 @@
 /*
  * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; only version 2
- * of the License.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2 only,
+ * as published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #ifndef _LTT_KERNEL_CTL_H
 #define _LTT_KERNEL_CTL_H
 
 #include "session.h"
+#include "snapshot.h"
 #include "trace-kernel.h"
 
 /*
@@ -30,20 +30,22 @@
  * dynamic reallocation is performed.
  */
 #define KERNEL_EVENT_INIT_LIST_SIZE 64
+#define KERNEL_TRACKER_PIDS_INIT_LIST_SIZE 64
 
 int kernel_add_channel_context(struct ltt_kernel_channel *chan,
-               struct lttng_kernel_context *ctx);
-int kernel_add_event_context(struct ltt_kernel_event *event,
-               struct lttng_kernel_context *ctx);
+               struct ltt_kernel_context *ctx);
 int kernel_create_session(struct ltt_session *session, int tracer_fd);
 int kernel_create_channel(struct ltt_kernel_session *session,
-               struct lttng_channel *chan, char *path);
-int kernel_create_event(struct lttng_event *ev, struct ltt_kernel_channel *channel);
+               struct lttng_channel *chan);
+int kernel_create_event(struct lttng_event *ev, struct ltt_kernel_channel *channel,
+               char *filter_expression, struct lttng_filter_bytecode *filter);
 int kernel_disable_channel(struct ltt_kernel_channel *chan);
 int kernel_disable_event(struct ltt_kernel_event *event);
 int kernel_enable_event(struct ltt_kernel_event *event);
 int kernel_enable_channel(struct ltt_kernel_channel *chan);
-int kernel_open_metadata(struct ltt_kernel_session *session, char *path);
+int kernel_track_pid(struct ltt_kernel_session *session, int pid);
+int kernel_untrack_pid(struct ltt_kernel_session *session, int pid);
+int kernel_open_metadata(struct ltt_kernel_session *session);
 int kernel_open_metadata_stream(struct ltt_kernel_session *session);
 int kernel_open_channel_stream(struct ltt_kernel_channel *channel);
 int kernel_flush_buffer(struct ltt_kernel_channel *channel);
@@ -52,7 +54,20 @@ int kernel_start_session(struct ltt_kernel_session *session);
 int kernel_stop_session(struct ltt_kernel_session *session);
 ssize_t kernel_list_events(int tracer_fd, struct lttng_event **event_list);
 void kernel_wait_quiescent(int fd);
-int kernel_calibrate(int fd, struct lttng_kernel_calibrate *calibrate);
-int kernel_validate_version(int tracer_fd);
+int kernel_validate_version(int tracer_fd,
+               struct lttng_kernel_tracer_version *kernel_tracer_version,
+               struct lttng_kernel_tracer_abi_version *kernel_tracer_abi_version);
+void kernel_destroy_session(struct ltt_kernel_session *ksess);
+void kernel_destroy_channel(struct ltt_kernel_channel *kchan);
+int kernel_snapshot_record(struct ltt_kernel_session *ksess,
+               struct snapshot_output *output, int wait,
+               uint64_t nb_packets_per_stream);
+int kernel_syscall_mask(int chan_fd, char **syscall_mask, uint32_t *nr_bits);
+enum lttng_error_code kernel_rotate_session(struct ltt_session *session);
+
+int init_kernel_workarounds(void);
+ssize_t kernel_list_tracker_pids(struct ltt_kernel_session *session,
+               int **_pids);
+int kernel_supports_ring_buffer_snapshot_sample_positions(int tracer_fd);
 
 #endif /* _LTT_KERNEL_CTL_H */