X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fkernel.hpp;fp=src%2Fbin%2Flttng-sessiond%2Fkernel.hpp;h=bb01651213dfd211dd75ba459e70f59f9c91916c;hp=0000000000000000000000000000000000000000;hb=c9e313bc594f40a86eed237dce222c0fc99c957f;hpb=4878de5c7deb512bbdac4fdfc498907efa06fb7c

diff --git a/src/bin/lttng-sessiond/kernel.hpp b/src/bin/lttng-sessiond/kernel.hpp
new file mode 100644
index 000000000..bb0165121
--- /dev/null
+++ b/src/bin/lttng-sessiond/kernel.hpp
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2011 EfficiOS Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#ifndef _LTT_KERNEL_CTL_H
+#define _LTT_KERNEL_CTL_H
+
+#include "lttng/lttng-error.h"
+#include "lttng/tracker.h"
+#include "session.hpp"
+#include "snapshot.hpp"
+#include "trace-kernel.hpp"
+
+/*
+ * Default size for the event list when kernel_list_events is called. This size
+ * value is based on the initial LTTng 2.0 version set of tracepoints.
+ *
+ * This is NOT an upper bound because if the real event list size is bigger,
+ * dynamic reallocation is performed.
+ */
+#define KERNEL_EVENT_INIT_LIST_SIZE 64
+
+int kernel_add_channel_context(struct ltt_kernel_channel *chan,
+		struct ltt_kernel_context *ctx);
+int kernel_create_session(struct ltt_session *session);
+int kernel_create_channel(struct ltt_kernel_session *session,
+		struct lttng_channel *chan);
+int kernel_create_event(struct lttng_event *ev, struct ltt_kernel_channel *channel,
+		char *filter_expression, struct lttng_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);
+enum lttng_error_code kernel_process_attr_tracker_set_tracking_policy(
+		struct ltt_kernel_session *session,
+		enum lttng_process_attr process_attr,
+		enum lttng_tracking_policy policy);
+enum lttng_error_code kernel_process_attr_tracker_inclusion_set_add_value(
+		struct ltt_kernel_session *session,
+		enum lttng_process_attr process_attr,
+		const struct process_attr_value *value);
+enum lttng_error_code kernel_process_attr_tracker_inclusion_set_remove_value(
+		struct ltt_kernel_session *session,
+		enum lttng_process_attr process_attr,
+		const struct process_attr_value *value);
+const struct process_attr_tracker *kernel_get_process_attr_tracker(
+		struct ltt_kernel_session *session,
+		enum lttng_process_attr process_attr);
+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);
+int kernel_metadata_flush_buffer(int fd);
+int kernel_start_session(struct ltt_kernel_session *session);
+int kernel_stop_session(struct ltt_kernel_session *session);
+ssize_t kernel_list_events(struct lttng_event **event_list);
+void kernel_wait_quiescent(void);
+int kernel_validate_version(struct lttng_kernel_abi_tracer_version *kernel_tracer_version,
+		struct lttng_kernel_abi_tracer_abi_version *kernel_tracer_abi_version);
+void kernel_destroy_session(struct ltt_kernel_session *ksess);
+void kernel_free_session(struct ltt_kernel_session *ksess);
+void kernel_destroy_channel(struct ltt_kernel_channel *kchan);
+enum lttng_error_code kernel_snapshot_record(
+		struct ltt_kernel_session *ksess,
+		const struct consumer_output *output,
+		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);
+enum lttng_error_code kernel_clear_session(struct ltt_session *session);
+
+int init_kernel_workarounds(void);
+int kernel_supports_ring_buffer_snapshot_sample_positions(void);
+int kernel_supports_ring_buffer_packet_sequence_number(void);
+int kernel_supports_event_notifiers(void);
+int init_kernel_tracer(void);
+void cleanup_kernel_tracer(void);
+bool kernel_tracer_is_initialized(void);
+
+enum lttng_error_code kernel_create_channel_subdirectories(
+		const struct ltt_kernel_session *ksess);
+
+enum lttng_error_code kernel_create_event_notifier_group_notification_fd(
+		int *event_notifier_group_notification_fd);
+enum lttng_error_code kernel_destroy_event_notifier_group_notification_fd(
+		int event_notifier_group_notification_fd);
+
+enum lttng_error_code kernel_register_event_notifier(
+		struct lttng_trigger *trigger,
+		const struct lttng_credentials *cmd_creds);
+enum lttng_error_code kernel_unregister_event_notifier(
+		const struct lttng_trigger *trigger);
+
+int kernel_get_notification_fd(void);
+
+#endif /* _LTT_KERNEL_CTL_H */