X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Ftrace-kernel.h;h=88e356854dd23217bb5c266f2199f61ad90a1eaa;hp=db91b2ed24cd57191e92a32376f0bc94e6b47482;hb=refs%2Fheads%2Fsow-2019-0002-rev1;hpb=645328ae989e5f50a3a49c1ac34b2fee287a3d7b diff --git a/src/bin/lttng-sessiond/trace-kernel.h b/src/bin/lttng-sessiond/trace-kernel.h index db91b2ed2..88e356854 100644 --- a/src/bin/lttng-sessiond/trace-kernel.h +++ b/src/bin/lttng-sessiond/trace-kernel.h @@ -1,18 +1,8 @@ /* - * Copyright (C) 2011 - David Goulet + * Copyright (C) 2011 David Goulet * - * 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 _LTT_TRACE_KERNEL_H @@ -26,12 +16,18 @@ #include #include "consumer.h" +#include "tracker.h" /* Kernel event list */ struct ltt_kernel_event_list { struct cds_list_head head; }; +/* Kernel event rule token list */ +struct ltt_kernel_token_event_rule_list { + struct cds_list_head head; +}; + /* Channel stream list */ struct ltt_kernel_stream_list { struct cds_list_head head; @@ -45,22 +41,42 @@ struct ltt_kernel_channel_list { struct ltt_kernel_context { struct lttng_kernel_context ctx; struct cds_list_head list; + /* Indicates whether or not the context is in a list. */ + bool in_list; }; /* Kernel event */ struct ltt_kernel_event { int fd; int enabled; + enum lttng_event_type type; struct lttng_kernel_event *event; struct cds_list_head list; + char *filter_expression; + struct lttng_filter_bytecode *filter; + struct lttng_userspace_probe_location *userspace_probe_location; +}; + +/* Kernel event */ +struct ltt_kernel_token_event_rule { + int fd; + int enabled; + enum lttng_event_type type; + struct lttng_event_rule *event_rule; + struct cds_list_head list; + uint64_t token; + const struct lttng_filter_bytecode *filter; + struct lttng_userspace_probe_location *userspace_probe_location; }; /* Kernel channel */ struct ltt_kernel_channel { int fd; + uint64_t key; /* Key to reference this channel with the consumer. */ int enabled; unsigned int stream_count; unsigned int event_count; + bool published_to_notification_thread; struct cds_list_head ctx_list; struct lttng_channel *channel; struct ltt_kernel_event_list events_list; @@ -68,11 +84,13 @@ struct ltt_kernel_channel { struct cds_list_head list; /* Session pointer which has a reference to this object. */ struct ltt_kernel_session *session; + bool sent_to_consumer; }; /* Metadata */ struct ltt_kernel_metadata { int fd; + uint64_t key; /* Key to reference this channel with the consumer. */ struct lttng_channel *conf; }; @@ -81,6 +99,7 @@ struct ltt_kernel_stream { int fd; int state; int cpu; + bool sent_to_consumer; /* Format is %s_%d respectively channel name and CPU number. */ char name[DEFAULT_STREAM_NAME_LEN]; uint64_t tracefile_size; @@ -100,14 +119,7 @@ struct ltt_kernel_session { /* UID/GID of the user owning the session */ uid_t uid; gid_t gid; - /* - * Two consumer_output object are needed where one is needed for the - * current output object and the second one is the temporary object used to - * store URI being set by the lttng_set_consumer_uri call. Once - * lttng_enable_consumer is called, the two pointers are swapped. - */ struct consumer_output *consumer; - struct consumer_output *tmp_consumer; /* Tracing session id */ uint64_t id; /* Session is active or not meaning it has been started or stopped. */ @@ -116,15 +128,33 @@ struct ltt_kernel_session { unsigned int output_traces; unsigned int snapshot_mode; unsigned int has_non_default_channel; + /* Current trace chunk of the ltt_session. */ + struct lttng_trace_chunk *current_trace_chunk; + /* Tracker lists */ + struct lttng_tracker_list *tracker_list_pid; + struct lttng_tracker_list *tracker_list_vpid; + struct lttng_tracker_list *tracker_list_uid; + struct lttng_tracker_list *tracker_list_vuid; + struct lttng_tracker_list *tracker_list_gid; + struct lttng_tracker_list *tracker_list_vgid; }; /* * Lookup functions. NULL is returned if not found. */ struct ltt_kernel_event *trace_kernel_get_event_by_name( - char *name, struct ltt_kernel_channel *channel); + char *name, struct ltt_kernel_channel *channel, + enum lttng_event_type type); +struct ltt_kernel_event *trace_kernel_find_event( + char *name, struct ltt_kernel_channel *channel, + enum lttng_event_type type, + struct lttng_filter_bytecode *filter); struct ltt_kernel_channel *trace_kernel_get_channel_by_name( - char *name, struct ltt_kernel_session *session); + const char *name, struct ltt_kernel_session *session); + +struct ltt_kernel_token_event_rule *trace_kernel_find_trigger_by_token( + struct ltt_kernel_token_event_rule_list *list, + uint64_t token); /* * Create functions malloc() the data structure. @@ -132,12 +162,22 @@ struct ltt_kernel_channel *trace_kernel_get_channel_by_name( struct ltt_kernel_session *trace_kernel_create_session(void); struct ltt_kernel_channel *trace_kernel_create_channel( struct lttng_channel *chan); -struct ltt_kernel_event *trace_kernel_create_event(struct lttng_event *ev); +enum lttng_error_code trace_kernel_create_event(struct lttng_event *ev, + char *filter_expression, struct lttng_filter_bytecode *filter, + struct ltt_kernel_event **kernel_event); struct ltt_kernel_metadata *trace_kernel_create_metadata(void); struct ltt_kernel_stream *trace_kernel_create_stream(const char *name, unsigned int count); struct ltt_kernel_context *trace_kernel_create_context( struct lttng_kernel_context *ctx); +enum lttng_error_code trace_kernel_create_token_event_rule( + struct lttng_event_rule *event_rule, + uint64_t token, + struct ltt_kernel_token_event_rule **kernel_token_event_rule); +struct ltt_kernel_context *trace_kernel_copy_context( + struct ltt_kernel_context *ctx); +enum lttng_error_code trace_kernel_init_trigger_from_event_rule(const struct lttng_event_rule *rule, + struct lttng_kernel_trigger *kernel_trigger); /* * Destroy functions free() the data structure and remove from linked list if @@ -149,5 +189,7 @@ void trace_kernel_destroy_channel(struct ltt_kernel_channel *channel); void trace_kernel_destroy_event(struct ltt_kernel_event *event); void trace_kernel_destroy_stream(struct ltt_kernel_stream *stream); void trace_kernel_destroy_context(struct ltt_kernel_context *ctx); +void trace_kernel_destroy_token_event_rule(struct ltt_kernel_token_event_rule *rule); +void trace_kernel_free_session(struct ltt_kernel_session *session); #endif /* _LTT_TRACE_KERNEL_H */