X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Ftrace-ust.h;h=cc7cd332ccdaf393369314daa44a978d65ab96c2;hp=7de5f041939dfe5638bd77c7f7017f13cd6256bc;hb=HEAD;hpb=b953b8cd56dbdc30e9228a7334c6e5fbe302cfc7 diff --git a/src/bin/lttng-sessiond/trace-ust.h b/src/bin/lttng-sessiond/trace-ust.h deleted file mode 100644 index 7de5f0419..000000000 --- a/src/bin/lttng-sessiond/trace-ust.h +++ /dev/null @@ -1,330 +0,0 @@ -/* - * 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. - * - * 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_UST_H -#define _LTT_TRACE_UST_H - -#include -#include -#include - -#include -#include -#include - -#include "consumer.h" -#include "ust-ctl.h" - -struct agent; - -struct ltt_ust_ht_key { - const char *name; - const struct lttng_filter_bytecode *filter; - enum lttng_ust_loglevel_type loglevel_type; - int loglevel_value; - const struct lttng_event_exclusion *exclusion; -}; - -/* Context hash table nodes */ -struct ltt_ust_context { - struct lttng_ust_context ctx; - struct lttng_ht_node_ulong node; - struct cds_list_head list; -}; - -/* UST event */ -struct ltt_ust_event { - unsigned int enabled; - struct lttng_ust_event attr; - struct lttng_ht_node_str node; - char *filter_expression; - struct lttng_filter_bytecode *filter; - struct lttng_event_exclusion *exclusion; - /* - * An internal event is an event which was created by the session daemon - * through which, for example, events emitted in Agent domains are - * "funelled". This is used to hide internal events from external - * clients as they should never be modified by the external world. - */ - bool internal; -}; - -/* UST channel */ -struct ltt_ust_channel { - uint64_t id; /* unique id per session. */ - unsigned int enabled; - /* - * A UST channel can be part of a userspace sub-domain such as JUL, - * Log4j, Python. - */ - enum lttng_domain_type domain; - char name[LTTNG_UST_SYM_NAME_LEN]; - struct lttng_ust_channel_attr attr; - struct lttng_ht *ctx; - struct cds_list_head ctx_list; - struct lttng_ht *events; - struct lttng_ht_node_str node; - uint64_t tracefile_size; - uint64_t tracefile_count; -}; - -/* UST domain global (LTTNG_DOMAIN_UST) */ -struct ltt_ust_domain_global { - struct lttng_ht *channels; - struct cds_list_head registry_buffer_uid_list; -}; - -struct ust_pid_tracker_node { - struct lttng_ht_node_ulong node; -}; - -struct ust_pid_tracker { - struct lttng_ht *ht; -}; - -/* UST session */ -struct ltt_ust_session { - uint64_t id; /* Unique identifier of session */ - struct ltt_ust_domain_global domain_global; - /* Hash table of agent indexed by agent domain. */ - struct lttng_ht *agents; - /* UID/GID of the user owning the session */ - uid_t uid; - gid_t gid; - /* Is the session active meaning has is been started or stopped. */ - unsigned int active:1; - struct consumer_output *consumer; - /* Sequence number for filters so the tracer knows the ordering. */ - uint64_t filter_seq_num; - /* This indicates which type of buffer this session is set for. */ - enum lttng_buffer_type buffer_type; - /* If set to 1, the buffer_type can not be changed anymore. */ - int buffer_type_changed; - /* For per UID buffer, every buffer reg object is kept of this session */ - struct cds_list_head buffer_reg_uid_list; - /* Next channel ID available for a newly registered channel. */ - uint64_t next_channel_id; - /* Once this value reaches UINT32_MAX, no more id can be allocated. */ - uint64_t used_channel_id; - /* Tell or not if the session has to output the traces. */ - unsigned int output_traces; - unsigned int snapshot_mode; - unsigned int has_non_default_channel; - unsigned int live_timer_interval; /* usec */ - - /* Metadata channel attributes. */ - struct lttng_ust_channel_attr metadata_attr; - - /* - * Path where to keep the shared memory files. - */ - char root_shm_path[PATH_MAX]; - char shm_path[PATH_MAX]; - - struct ust_pid_tracker pid_tracker; -}; - -/* - * Validate that the id has reached the maximum allowed or not. - * - * Return 0 if NOT else 1. - */ -static inline int trace_ust_is_max_id(uint64_t id) -{ - return (id == UINT64_MAX) ? 1 : 0; -} - -/* - * Return next available channel id and increment the used counter. The - * trace_ust_is_max_id function MUST be called before in order to validate if - * the maximum number of IDs have been reached. If not, it is safe to call this - * function. - * - * Return a unique channel ID. If max is reached, the used_channel_id counter - * is returned. - */ -static inline uint64_t trace_ust_get_next_chan_id(struct ltt_ust_session *s) -{ - if (trace_ust_is_max_id(s->used_channel_id)) { - return s->used_channel_id; - } - - s->used_channel_id++; - return s->next_channel_id++; -} - -#ifdef HAVE_LIBLTTNG_UST_CTL - -int trace_ust_ht_match_event(struct cds_lfht_node *node, const void *_key); -int trace_ust_ht_match_event_by_name(struct cds_lfht_node *node, - const void *_key); - -/* - * Lookup functions. NULL is returned if not found. - */ -struct ltt_ust_event *trace_ust_find_event(struct lttng_ht *ht, - char *name, struct lttng_filter_bytecode *filter, - enum lttng_ust_loglevel_type loglevel_type, int loglevel_value, - struct lttng_event_exclusion *exclusion); -struct ltt_ust_channel *trace_ust_find_channel_by_name(struct lttng_ht *ht, - char *name); -struct agent *trace_ust_find_agent(struct ltt_ust_session *session, - enum lttng_domain_type domain_type); - -/* - * Create functions malloc() the data structure. - */ -struct ltt_ust_session *trace_ust_create_session(uint64_t session_id); -struct ltt_ust_channel *trace_ust_create_channel(struct lttng_channel *attr, - enum lttng_domain_type domain); -struct ltt_ust_event *trace_ust_create_event(struct lttng_event *ev, - char *filter_expression, - struct lttng_filter_bytecode *filter, - struct lttng_event_exclusion *exclusion, - bool internal_event); -struct ltt_ust_context *trace_ust_create_context( - struct lttng_event_context *ctx); -int trace_ust_match_context(struct ltt_ust_context *uctx, - struct lttng_event_context *ctx); -void trace_ust_delete_channel(struct lttng_ht *ht, - struct ltt_ust_channel *channel); - -/* - * Destroy functions free() the data structure and remove from linked list if - * it's applies. - */ -void trace_ust_destroy_session(struct ltt_ust_session *session); -void trace_ust_destroy_channel(struct ltt_ust_channel *channel); -void trace_ust_destroy_event(struct ltt_ust_event *event); - -int trace_ust_track_pid(struct ltt_ust_session *session, int pid); -int trace_ust_untrack_pid(struct ltt_ust_session *session, int pid); - -int trace_ust_pid_tracker_lookup(struct ltt_ust_session *session, int pid); - -ssize_t trace_ust_list_tracker_pids(struct ltt_ust_session *session, - int32_t **_pids); - -#else /* HAVE_LIBLTTNG_UST_CTL */ - -static inline int trace_ust_ht_match_event(struct cds_lfht_node *node, - const void *_key) -{ - return 0; -} -static inline int trace_ust_ht_match_event_by_name(struct cds_lfht_node *node, - const void *_key) -{ - return 0; -} -static inline -struct ltt_ust_channel *trace_ust_find_channel_by_name(struct lttng_ht *ht, - char *name) -{ - return NULL; -} - -static inline -struct ltt_ust_session *trace_ust_create_session(unsigned int session_id) -{ - return NULL; -} -static inline -struct ltt_ust_channel *trace_ust_create_channel(struct lttng_channel *attr, - enum lttng_domain_type domain) -{ - return NULL; -} -static inline -struct ltt_ust_event *trace_ust_create_event(struct lttng_event *ev, - const char *filter_expression, - struct lttng_filter_bytecode *filter, - struct lttng_event_exclusion *exclusion, - bool internal_event) -{ - return NULL; -} -static inline -void trace_ust_destroy_session(struct ltt_ust_session *session) -{ -} - -static inline -void trace_ust_destroy_channel(struct ltt_ust_channel *channel) -{ -} - -static inline -void trace_ust_destroy_event(struct ltt_ust_event *event) -{ -} -static inline -struct ltt_ust_context *trace_ust_create_context( - struct lttng_event_context *ctx) -{ - return NULL; -} -static inline -int trace_ust_match_context(struct ltt_ust_context *uctx, - struct lttng_event_context *ctx) -{ - return 0; -} -static inline -struct ltt_ust_event *trace_ust_find_event(struct lttng_ht *ht, - char *name, struct lttng_filter_bytecode *filter, - enum lttng_ust_loglevel_type loglevel_type, int loglevel_value, - struct lttng_event_exclusion *exclusion) -{ - return NULL; -} -static inline -void trace_ust_delete_channel(struct lttng_ht *ht, - struct ltt_ust_channel *channel) -{ - return; -} -static inline -struct agent *trace_ust_find_agent(struct ltt_ust_session *session, - enum lttng_domain_type domain_type) -{ - return NULL; -} -static inline -int trace_ust_track_pid(struct ltt_ust_session *session, int pid) -{ - return 0; -} -static inline -int trace_ust_untrack_pid(struct ltt_ust_session *session, int pid) -{ - return 0; -} -static inline -int trace_ust_pid_tracker_lookup(struct ltt_ust_session *session, int pid) -{ - return 0; -} -static inline -ssize_t trace_ust_list_tracker_pids(struct ltt_ust_session *session, - int32_t **_pids) -{ - return -1; -} -#endif /* HAVE_LIBLTTNG_UST_CTL */ - -#endif /* _LTT_TRACE_UST_H */