event = caa_container_of(node, struct ltt_ust_event, node.node);
key = _key;
- /* Match the 3 elements of the key: name, filter and loglevel. */
+ /* Match the 4 elements of the key: name, filter, loglevel, exclusions. */
/* Event name */
if (strncmp(event->attr.name, key->name, sizeof(event->attr.name)) != 0) {
}
}
+ /* If only one of the exclusions is NULL, fail. */
+ if ((key->exclusion && !event->exclusion) || (!key->exclusion && event->exclusion)) {
+ goto no_match;
+ }
+
+ if (key->exclusion && event->exclusion) {
+ /* Both exclusions exist; check count followed by names. */
+ if (event->exclusion->count != key->exclusion->count ||
+ memcmp(event->exclusion->names, key->exclusion->names,
+ event->exclusion->count * LTTNG_SYMBOL_NAME_LEN) != 0) {
+ goto no_match;
+ }
+ }
/* Match. */
return 1;
struct lttng_ht_node_str *node;
struct lttng_ht_iter iter;
+ /*
+ * If we receive an empty string for channel name, it means the
+ * default channel name is requested.
+ */
+ if (name[0] == '\0')
+ name = DEFAULT_CHANNEL_NAME;
+
lttng_ht_lookup(ht, (void *)name, &iter);
node = lttng_ht_iter_get_node_str(&iter);
if (node == NULL) {
* MUST be acquired before calling this.
*/
struct ltt_ust_event *trace_ust_find_event(struct lttng_ht *ht,
- char *name, struct lttng_filter_bytecode *filter, int loglevel)
+ char *name, struct lttng_filter_bytecode *filter, int loglevel,
+ struct lttng_event_exclusion *exclusion)
{
struct lttng_ht_node_str *node;
struct lttng_ht_iter iter;
key.name = name;
key.filter = filter;
key.loglevel = loglevel;
+ key.exclusion = exclusion;
cds_lfht_lookup(ht->ht, ht->hash_fct((void *) name, lttng_ht_seed),
trace_ust_ht_match_event, &key, &iter.iter);
*/
struct ltt_ust_session *trace_ust_create_session(uint64_t session_id)
{
+ int ret;
struct ltt_ust_session *lus;
/* Allocate a new ltt ust session */
/* Init data structure */
lus->id = session_id;
- lus->start_trace = 0;
+ lus->active = 0;
+
+ /* Set default metadata channel attribute. */
+ lus->metadata_attr.overwrite = DEFAULT_CHANNEL_OVERWRITE;
+ lus->metadata_attr.subbuf_size = default_get_metadata_subbuf_size();
+ lus->metadata_attr.num_subbuf = DEFAULT_METADATA_SUBBUF_NUM;
+ lus->metadata_attr.switch_timer_interval = DEFAULT_METADATA_SWITCH_TIMER;
+ lus->metadata_attr.read_timer_interval = DEFAULT_METADATA_READ_TIMER;
+ lus->metadata_attr.output = LTTNG_UST_MMAP;
/*
* Default buffer type. This can be changed through an enable channel
* during the session lifetime which is at the first enable channel and
* only before start. The flag buffer_type_changed indicates the status.
*/
- lus->buffer_type = LTTNG_BUFFER_PER_PID;
+ lus->buffer_type = LTTNG_BUFFER_PER_UID;
/* Once set to 1, the buffer_type is immutable for the session. */
lus->buffer_type_changed = 0;
/* Init it in case it get used after allocation. */
/* Alloc UST global domain channels' HT */
lus->domain_global.channels = lttng_ht_new(0, LTTNG_HT_TYPE_STRING);
+ ret = jul_init_domain(&lus->domain_jul);
+ if (ret < 0) {
+ goto error_consumer;
+ }
lus->consumer = consumer_create_output(CONSUMER_DST_LOCAL);
if (lus->consumer == NULL) {
error_consumer:
ht_cleanup_push(lus->domain_global.channels);
+ jul_destroy_domain(&lus->domain_jul);
free(lus);
error:
return NULL;
break;
}
- /* Copy channel name */
- strncpy(luc->name, chan->name, sizeof(luc->name));
+ /*
+ * If we receive an empty string for channel name, it means the
+ * default channel name is requested.
+ */
+ if (chan->name[0] == '\0') {
+ strncpy(luc->name, DEFAULT_CHANNEL_NAME, sizeof(luc->name));
+ } else {
+ /* Copy channel name */
+ strncpy(luc->name, chan->name, sizeof(luc->name));
+ }
luc->name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0';
/* Init node */
lttng_ht_node_init_str(&luc->node, luc->name);
+ CDS_INIT_LIST_HEAD(&luc->ctx_list);
+
/* Alloc hash tables */
luc->events = lttng_ht_new(0, LTTNG_HT_TYPE_STRING);
luc->ctx = lttng_ht_new(0, LTTNG_HT_TYPE_ULONG);
* Return pointer to structure or NULL.
*/
struct ltt_ust_event *trace_ust_create_event(struct lttng_event *ev,
- struct lttng_filter_bytecode *filter)
+ char *filter_expression,
+ struct lttng_filter_bytecode *filter,
+ struct lttng_event_exclusion *exclusion)
{
struct ltt_ust_event *lue;
}
/* Same layout. */
+ lue->filter_expression = filter_expression;
lue->filter = (struct lttng_ust_filter_bytecode *) filter;
+ lue->exclusion = (struct lttng_event_exclusion *) exclusion;
/* Init node */
lttng_ht_node_init_str(&lue->node, lue->attr.name);
return NULL;
}
+static
+int trace_ust_context_type_event_to_ust(enum lttng_event_context_type type)
+{
+ int utype;
+
+ switch (type) {
+ case LTTNG_EVENT_CONTEXT_VTID:
+ utype = LTTNG_UST_CONTEXT_VTID;
+ break;
+ case LTTNG_EVENT_CONTEXT_VPID:
+ utype = LTTNG_UST_CONTEXT_VPID;
+ break;
+ case LTTNG_EVENT_CONTEXT_PTHREAD_ID:
+ utype = LTTNG_UST_CONTEXT_PTHREAD_ID;
+ break;
+ case LTTNG_EVENT_CONTEXT_PROCNAME:
+ utype = LTTNG_UST_CONTEXT_PROCNAME;
+ break;
+ case LTTNG_EVENT_CONTEXT_IP:
+ utype = LTTNG_UST_CONTEXT_IP;
+ break;
+ case LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER:
+ utype = LTTNG_UST_CONTEXT_PERF_THREAD_COUNTER;
+ break;
+ default:
+ ERR("Invalid UST context");
+ utype = -1;
+ break;
+ }
+ return utype;
+}
+
/*
- * Allocate and initialize a ust metadata.
- *
- * Return pointer to structure or NULL.
+ * Return 1 if contexts match, 0 otherwise.
*/
-struct ltt_ust_metadata *trace_ust_create_metadata(char *path)
+int trace_ust_match_context(struct ltt_ust_context *uctx,
+ struct lttng_event_context *ctx)
{
- int ret;
- struct ltt_ust_metadata *lum;
-
- assert(path);
+ int utype;
- lum = zmalloc(sizeof(struct ltt_ust_metadata));
- if (lum == NULL) {
- PERROR("ust metadata zmalloc");
- goto error;
+ utype = trace_ust_context_type_event_to_ust(ctx->ctx);
+ if (utype < 0) {
+ return 0;
}
-
- /* Set default attributes */
- lum->attr.overwrite = DEFAULT_CHANNEL_OVERWRITE;
- lum->attr.subbuf_size = default_get_metadata_subbuf_size();
- lum->attr.num_subbuf = DEFAULT_METADATA_SUBBUF_NUM;
- lum->attr.switch_timer_interval = DEFAULT_METADATA_SWITCH_TIMER;
- lum->attr.read_timer_interval = DEFAULT_METADATA_READ_TIMER;
- lum->attr.output = LTTNG_UST_MMAP;
-
- lum->handle = -1;
- /* Set metadata trace path */
- ret = snprintf(lum->pathname, PATH_MAX, "%s/" DEFAULT_METADATA_NAME, path);
- if (ret < 0) {
- PERROR("asprintf ust metadata");
- goto error_free_metadata;
+ if (uctx->ctx.ctx != utype) {
+ return 0;
}
+ switch (utype) {
+ case LTTNG_UST_CONTEXT_PERF_THREAD_COUNTER:
+ if (uctx->ctx.u.perf_counter.type
+ != ctx->u.perf_counter.type) {
+ return 0;
+ }
+ if (uctx->ctx.u.perf_counter.config
+ != ctx->u.perf_counter.config) {
+ return 0;
+ }
+ if (strncmp(uctx->ctx.u.perf_counter.name,
+ ctx->u.perf_counter.name,
+ LTTNG_UST_SYM_NAME_LEN)) {
+ return 0;
+ }
+ break;
+ default:
+ break;
- return lum;
-
-error_free_metadata:
- free(lum);
-error:
- return NULL;
+ }
+ return 1;
}
/*
struct lttng_event_context *ctx)
{
struct ltt_ust_context *uctx;
- enum lttng_ust_context_type utype;
+ int utype;
assert(ctx);
- switch (ctx->ctx) {
- case LTTNG_EVENT_CONTEXT_VTID:
- utype = LTTNG_UST_CONTEXT_VTID;
- break;
- case LTTNG_EVENT_CONTEXT_VPID:
- utype = LTTNG_UST_CONTEXT_VPID;
- break;
- case LTTNG_EVENT_CONTEXT_PTHREAD_ID:
- utype = LTTNG_UST_CONTEXT_PTHREAD_ID;
- break;
- case LTTNG_EVENT_CONTEXT_PROCNAME:
- utype = LTTNG_UST_CONTEXT_PROCNAME;
- break;
- case LTTNG_EVENT_CONTEXT_IP:
- utype = LTTNG_UST_CONTEXT_IP;
- break;
- default:
- ERR("Invalid UST context");
+ utype = trace_ust_context_type_event_to_ust(ctx->ctx);
+ if (utype < 0) {
return NULL;
}
goto error;
}
- uctx->ctx.ctx = utype;
+ uctx->ctx.ctx = (enum lttng_ust_context_type) utype;
+ switch (utype) {
+ case LTTNG_UST_CONTEXT_PERF_THREAD_COUNTER:
+ uctx->ctx.u.perf_counter.type = ctx->u.perf_counter.type;
+ uctx->ctx.u.perf_counter.config = ctx->u.perf_counter.config;
+ strncpy(uctx->ctx.u.perf_counter.name, ctx->u.perf_counter.name,
+ LTTNG_UST_SYM_NAME_LEN);
+ uctx->ctx.u.perf_counter.name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0';
+ break;
+ default:
+ break;
+ }
lttng_ht_node_init_ulong(&uctx->node, (unsigned long) uctx->ctx.ctx);
return uctx;
int ret;
struct lttng_ht_node_ulong *node;
struct lttng_ht_iter iter;
+ struct ltt_ust_context *ctx;
assert(ht);
rcu_read_lock();
cds_lfht_for_each_entry(ht->ht, &iter.iter, node, node) {
+ /* Remove from ordered list. */
+ ctx = caa_container_of(node, struct ltt_ust_context, node);
+ cds_list_del(&ctx->list);
+ /* Remove from channel's hash table. */
ret = lttng_ht_del(ht, &iter);
if (!ret) {
call_rcu(&node->head, destroy_context_rcu);
assert(event);
DBG2("Trace destroy UST event %s", event->attr.name);
+ free(event->filter_expression);
free(event->filter);
+ free(event->exclusion);
free(event);
}
assert(!ret);
}
-/*
- * Cleanup ust metadata structure.
- */
-void trace_ust_destroy_metadata(struct ltt_ust_metadata *metadata)
-{
- assert(metadata);
-
- if (!metadata->handle) {
- return;
- }
- DBG2("Trace UST destroy metadata %d", metadata->handle);
- free(metadata);
-}
-
/*
* Iterate over a hash table containing channels and cleanup safely.
*/
/* Cleaning up UST domain */
destroy_domain_global(&session->domain_global);
+ jul_destroy_domain(&session->domain_jul);
/* Cleanup UID buffer registry object(s). */
cds_list_for_each_entry_safe(reg, sreg, &session->buffer_reg_uid_list,