SoW-2020-0002: Trace Hit Counters: trigger error reporting integration

[lttng-tools.git] / src / common / kernel-ctl / kernel-ctl.h

diff --git a/src/common/kernel-ctl/kernel-ctl.h b/src/common/kernel-ctl/kernel-ctl.h
index ea2aa581928084cdaa4eb9aea4d0ff6ddbfa2277..eab697730f222731270375495e3ba16df5435161 100644 (file)
--- a/src/common/kernel-ctl/kernel-ctl.h
+++ b/src/common/kernel-ctl/kernel-ctl.h
@@ -1,27 +1,20 @@
 /*
- * Copyright (C) 2011 - Julien Desfossez <julien.desfossez@polymtl.ca>
- *                      Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca>
+ * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
- * 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.
+ * SPDX-License-Identifier: GPL-2.0-only
  *
- * 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
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #ifndef _LTTNG_KERNEL_CTL_H
 #define _LTTNG_KERNEL_CTL_H
 
+#include <stdbool.h>
+
 #include <lttng/lttng.h>
 #include <common/lttng-kernel.h>
 #include <common/lttng-kernel-old.h>
+#include <common/sessiond-comm/sessiond-comm.h>        /* for struct lttng_filter_bytecode */
 
 int kernctl_create_session(int fd);
 int kernctl_open_metadata(int fd, struct lttng_channel_attr *chops);
@@ -35,11 +28,54 @@ int kernctl_disable(int fd);
 int kernctl_start_session(int fd);
 int kernctl_stop_session(int fd);
 
+int kernctl_create_trigger_group(int fd);
+
+/* Apply on trigger_group FD*/
+int kernctl_create_trigger_group_notification_fd(int fd);
+int kernctl_create_trigger_group_error_counter(int fd,
+               struct lttng_kernel_counter_conf *error_counter_conf);
+int kernctl_create_trigger(int fd, struct lttng_kernel_trigger *trigger);
+
+int kernctl_counter_get_value(int counter_fd, struct lttng_kernel_counter_value *value);
+
+/* Apply on event FD */
+int kernctl_filter(int fd, const struct lttng_bytecode *filter);
+int kernctl_add_callsite(int fd, struct lttng_kernel_event_callsite *callsite);
+int kernctl_capture(int fd, const struct lttng_bytecode *capture);
+
 int kernctl_tracepoint_list(int fd);
+int kernctl_syscall_list(int fd);
 int kernctl_tracer_version(int fd, struct lttng_kernel_tracer_version *v);
+int kernctl_tracer_abi_version(int fd, struct lttng_kernel_tracer_abi_version *v);
 int kernctl_wait_quiescent(int fd);
-int kernctl_calibrate(int fd, struct lttng_kernel_calibrate *calibrate);
 
+/*
+ * kernctl_syscall_mask - Get syscall mask associated to a channel FD.
+ *
+ * The parameter @syscall_mask should initially be either NULL or point
+ * to memory allocated with malloc(3) or realloc(3). When the function
+ * returns, it will point to a memory area of the size required for the
+ * bitmask (using realloc(3) to resize the memory).
+ *
+ * It returns 0 if OK, -1 on error. In all cases (error and OK),
+ * @syscall_mask should be freed by the caller with free(3).
+ */
+int kernctl_syscall_mask(int fd, char **syscall_mask,
+               uint32_t *nr_bits);
+
+/* Process ID tracking can be applied to session FD */
+int kernctl_track_pid(int fd, int pid);
+int kernctl_untrack_pid(int fd, int pid);
+int kernctl_list_tracker_pids(int fd);
+
+int kernctl_track_id(int fd, enum lttng_process_attr process_attr, int id);
+int kernctl_untrack_id(int fd, enum lttng_process_attr process_attr, int id);
+int kernctl_list_tracker_ids(int fd, enum lttng_process_attr process_attr);
+
+int kernctl_session_regenerate_metadata(int fd);
+int kernctl_session_regenerate_statedump(int fd);
+int kernctl_session_set_name(int fd, const char *name);
+int kernctl_session_set_creation_time(int fd, time_t time);
 
 /* Buffer operations */
 
@@ -60,11 +96,28 @@ int kernctl_put_next_subbuf(int fd);
 
 /* snapshot */
 int kernctl_snapshot(int fd);
+int kernctl_snapshot_sample_positions(int fd);
 int kernctl_snapshot_get_consumed(int fd, unsigned long *pos);
 int kernctl_snapshot_get_produced(int fd, unsigned long *pos);
 int kernctl_get_subbuf(int fd, unsigned long *pos);
 int kernctl_put_subbuf(int fd);
 
 int kernctl_buffer_flush(int fd);
+int kernctl_buffer_flush_empty(int fd);
+int kernctl_buffer_clear(int fd);
+int kernctl_get_metadata_version(int fd, uint64_t *version);
+int kernctl_metadata_cache_dump(int fd);
+int kernctl_get_next_subbuf_metadata_check(int fd, bool *consistent);
+
+/* index */
+int kernctl_get_timestamp_begin(int fd, uint64_t *timestamp_begin);
+int kernctl_get_timestamp_end(int fd, uint64_t *timestamp_end);
+int kernctl_get_events_discarded(int fd, uint64_t *events_discarded);
+int kernctl_get_content_size(int fd, uint64_t *content_size);
+int kernctl_get_packet_size(int fd, uint64_t *packet_size);
+int kernctl_get_stream_id(int fd, uint64_t *stream_id);
+int kernctl_get_current_timestamp(int fd, uint64_t *ts);
+int kernctl_get_sequence_number(int fd, uint64_t *seq);
+int kernctl_get_instance_id(int fd, uint64_t *seq);
 
 #endif /* _LTTNG_KERNEL_CTL_H */