#include "channel.h"
#include "event.h"
#include "kernel.h"
+#include "lttng-sessiond.h"
#include "ust-ctl.h"
#include "ust-app.h"
#include "trace-kernel.h"
key.name = event->attr.name;
key.filter = (struct lttng_filter_bytecode *) event->filter;
key.loglevel = event->attr.loglevel;
+ key.exclusion = event->exclusion;
node_ptr = cds_lfht_add_unique(ht->ht,
ht->hash_fct(event->node.key, lttng_ht_seed),
}
/*
- * Enable all kernel tracepoint events of a channel of the kernel session.
+ * Enable all kernel sycalls events of a channel of the kernel session.
*/
int event_kernel_enable_all_syscalls(struct ltt_kernel_channel *kchan,
int kernel_tracer_fd)
* Enable all UST tracepoints for a channel from a UST session.
*/
int event_ust_enable_all_tracepoints(struct ltt_ust_session *usess,
- struct ltt_ust_channel *uchan, struct lttng_filter_bytecode *filter)
+ struct ltt_ust_channel *uchan,
+ char *filter_expression,
+ struct lttng_filter_bytecode *filter)
{
int ret, i, size;
struct lttng_ht_iter iter;
* previously.
*/
uevent = trace_ust_find_event(uchan->events, events[i].name, filter,
- events[i].loglevel);
+ events[i].loglevel, NULL);
if (uevent != NULL) {
ret = ust_app_enable_event_pid(usess, uchan, uevent,
events[i].pid);
}
/* Create ust event */
- uevent = trace_ust_create_event(&events[i], filter);
+ uevent = trace_ust_create_event(&events[i], filter_expression,
+ filter, NULL);
if (uevent == NULL) {
ret = LTTNG_ERR_FATAL;
goto error_destroy;
*/
int event_ust_enable_tracepoint(struct ltt_ust_session *usess,
struct ltt_ust_channel *uchan, struct lttng_event *event,
- struct lttng_filter_bytecode *filter)
+ char *filter_expression,
+ struct lttng_filter_bytecode *filter,
+ struct lttng_event_exclusion *exclusion)
{
int ret = LTTNG_OK, to_create = 0;
struct ltt_ust_event *uevent;
rcu_read_lock();
uevent = trace_ust_find_event(uchan->events, event->name, filter,
- event->loglevel);
+ event->loglevel, exclusion);
if (uevent == NULL) {
- uevent = trace_ust_create_event(event, filter);
+ uevent = trace_ust_create_event(event, filter_expression,
+ filter, exclusion);
if (uevent == NULL) {
ret = LTTNG_ERR_UST_ENABLE_FAIL;
goto error;
if (uevent->enabled == 0) {
/* It's already disabled so everything is OK */
- ret = LTTNG_OK;
- continue;
+ goto next;
}
ret = ust_app_disable_event_glb(usess, uchan, uevent);
DBG2("Event UST %s disabled in channel %s", uevent->attr.name,
uchan->name);
+next:
/* Get next duplicate event by name. */
cds_lfht_next_duplicate(ht->ht, trace_ust_ht_match_event_by_name,
event_name, &iter.iter);
rcu_read_unlock();
return ret;
}
+
+/*
+ * Enable all agent event for a given UST session.
+ *
+ * Return LTTNG_OK on success or else a LTTNG_ERR* code.
+ */
+int event_agent_enable_all(struct ltt_ust_session *usess,
+ struct lttng_event *event, struct lttng_filter_bytecode *filter)
+{
+ int ret;
+ struct agent_event *jevent;
+ struct lttng_ht_iter iter;
+
+ assert(usess);
+
+ DBG("Event agent enabling ALL events for session %" PRIu64, usess->id);
+
+ /* Enable event on agent application through TCP socket. */
+ ret = event_agent_enable(usess, event, filter);
+ if (ret != LTTNG_OK) {
+ goto error;
+ }
+
+ /* Flag every event that they are now enabled. */
+ rcu_read_lock();
+ cds_lfht_for_each_entry(usess->agent.events->ht, &iter.iter, jevent,
+ node.node) {
+ jevent->enabled = 1;
+ }
+ rcu_read_unlock();
+
+ ret = LTTNG_OK;
+
+error:
+ return ret;
+}
+
+/*
+ * Enable a single agent event for a given UST session.
+ *
+ * Return LTTNG_OK on success or else a LTTNG_ERR* code.
+ */
+int event_agent_enable(struct ltt_ust_session *usess, struct lttng_event *event,
+ struct lttng_filter_bytecode *filter)
+{
+ int ret, created = 0;
+ struct agent_event *jevent;
+
+ assert(usess);
+ assert(event);
+
+ DBG("Event agent enabling %s for session %" PRIu64 " with loglevel type %d "
+ "and loglevel %d", event->name, usess->id, event->loglevel_type,
+ event->loglevel);
+
+ jevent = agent_find_event(event->name, event->loglevel, &usess->agent);
+ if (!jevent) {
+ jevent = agent_create_event(event->name, filter);
+ if (!jevent) {
+ ret = LTTNG_ERR_NOMEM;
+ goto error;
+ }
+ jevent->loglevel = event->loglevel;
+ jevent->loglevel_type = event->loglevel_type;
+ created = 1;
+ }
+
+ /* Already enabled? */
+ if (jevent->enabled) {
+ goto end;
+ }
+
+ ret = agent_enable_event(jevent);
+ if (ret != LTTNG_OK) {
+ goto error;
+ }
+
+ /* If the event was created prior to the enable, add it to the domain. */
+ if (created) {
+ agent_add_event(jevent, &usess->agent);
+ }
+
+end:
+ return LTTNG_OK;
+
+error:
+ if (created) {
+ agent_destroy_event(jevent);
+ }
+ return ret;
+}
+
+/*
+ * Disable a single agent event for a given UST session.
+ *
+ * Return LTTNG_OK on success or else a LTTNG_ERR* code.
+ */
+int event_agent_disable(struct ltt_ust_session *usess, char *event_name)
+{
+ int ret;
+ struct agent_event *jevent;
+ struct ltt_ust_event *uevent = NULL;
+ struct ltt_ust_channel *uchan = NULL;
+ char *ust_event_name;
+
+ assert(usess);
+ assert(event_name);
+
+ DBG("Event agent disabling %s for session %" PRIu64, event_name, usess->id);
+
+ jevent = agent_find_event_by_name(event_name, &usess->agent);
+ if (!jevent) {
+ ret = LTTNG_ERR_UST_EVENT_NOT_FOUND;
+ goto error;
+ }
+
+ /* Already disabled? */
+ if (!jevent->enabled) {
+ goto end;
+ }
+
+ /*
+ * Disable it on the UST side. First get the channel reference then find
+ * the event and finally disable it.
+ */
+ uchan = trace_ust_find_channel_by_name(usess->domain_global.channels,
+ DEFAULT_JUL_CHANNEL_NAME);
+ if (!uchan) {
+ ret = LTTNG_ERR_UST_CHAN_NOT_FOUND;
+ goto error;
+ }
+
+ if (is_root) {
+ ust_event_name = DEFAULT_SYS_JUL_EVENT_NAME;
+ } else {
+ ust_event_name = DEFAULT_USER_JUL_EVENT_NAME;
+ }
+
+ /*
+ * The loglevel is hardcoded with 0 here since the agent ust event is set
+ * with the loglevel type to ALL thus the loglevel stays 0. The event's
+ * filter is the one handling the loglevel for agent.
+ */
+ uevent = trace_ust_find_event(uchan->events, ust_event_name,
+ jevent->filter, 0, NULL);
+ /* If the agent event exists, it must be available on the UST side. */
+ assert(uevent);
+
+ ret = ust_app_disable_event_glb(usess, uchan, uevent);
+ if (ret < 0 && ret != -LTTNG_UST_ERR_EXIST) {
+ ret = LTTNG_ERR_UST_DISABLE_FAIL;
+ goto error;
+ }
+
+ ret = agent_disable_event(jevent);
+ if (ret != LTTNG_OK) {
+ goto error;
+ }
+
+end:
+ return LTTNG_OK;
+
+error:
+ return ret;
+}
+/*
+ * Disable all agent event for a given UST session.
+ *
+ * Return LTTNG_OK on success or else a LTTNG_ERR* code.
+ */
+int event_agent_disable_all(struct ltt_ust_session *usess)
+{
+ int ret, do_disable = 0;
+ struct agent_event *jevent;
+ struct lttng_ht_iter iter;
+
+ assert(usess);
+
+ /* Enable event on agent application through TCP socket. */
+ ret = event_agent_disable(usess, "*");
+ if (ret != LTTNG_OK) {
+ if (ret == LTTNG_ERR_UST_EVENT_NOT_FOUND) {
+ /*
+ * This means that no enable all was done before but still a user
+ * could want to disable everything even though the * wild card
+ * event does not exists.
+ */
+ do_disable = 1;
+ } else {
+ goto error;
+ }
+ }
+
+ /* Flag every event that they are now enabled. */
+ rcu_read_lock();
+ cds_lfht_for_each_entry(usess->agent.events->ht, &iter.iter, jevent,
+ node.node) {
+ if (jevent->enabled && do_disable) {
+ ret = event_agent_disable(usess, jevent->name);
+ if (ret != LTTNG_OK) {
+ rcu_read_unlock();
+ goto error;
+ }
+ }
+ jevent->enabled = 0;
+ }
+ rcu_read_unlock();
+
+ ret = LTTNG_OK;
+
+error:
+ return ret;
+}
projects / lttng-tools.git / blobdiff