MI: implement all objects related to trigger machine interface

[lttng-tools.git] / src / common / event-rule / user-tracepoint.c

diff --git a/src/common/event-rule/user-tracepoint.c b/src/common/event-rule/user-tracepoint.c
index 45b7eda257faae2807ac1c3489c2fb8ceef69703..503e7163fe3cd847bd2224cb1915ffd18e03168e 100644 (file)
--- a/src/common/event-rule/user-tracepoint.c
+++ b/src/common/event-rule/user-tracepoint.c
@@ -8,18 +8,19 @@
 #include <assert.h>
 #include <common/credentials.h>
 #include <common/error.h>
+#include <common/hashtable/hashtable.h>
+#include <common/hashtable/utils.h>
 #include <common/macros.h>
+#include <common/mi-lttng.h>
 #include <common/optional.h>
-#include <common/payload.h>
 #include <common/payload-view.h>
+#include <common/payload.h>
 #include <common/runas.h>
-#include <common/hashtable/hashtable.h>
-#include <common/hashtable/utils.h>
 #include <common/string-utils/string-utils.h>
 #include <lttng/event-rule/event-rule-internal.h>
 #include <lttng/event-rule/user-tracepoint-internal.h>
-#include <lttng/log-level-rule.h>
 #include <lttng/event.h>
+#include <lttng/log-level-rule.h>
 
 #define IS_USER_TRACEPOINT_EVENT_RULE(rule) \
        (lttng_event_rule_get_type(rule) == LTTNG_EVENT_RULE_TYPE_USER_TRACEPOINT)
@@ -439,6 +440,119 @@ static unsigned long lttng_event_rule_user_tracepoint_hash(
        return hash;
 }
 
+static enum lttng_error_code lttng_event_rule_user_tracepoint_mi_serialize(
+               const struct lttng_event_rule *rule, struct mi_writer *writer)
+{
+       int ret;
+       enum lttng_error_code ret_code;
+       enum lttng_event_rule_status status;
+       const char *filter = NULL;
+       const char *name_pattern = NULL;
+       const struct lttng_log_level_rule *log_level_rule = NULL;
+       unsigned int exclusion_count = 0;
+
+       assert(rule);
+       assert(writer);
+       assert(IS_USER_TRACEPOINT_EVENT_RULE(rule));
+
+       status = lttng_event_rule_user_tracepoint_get_name_pattern(
+                       rule, &name_pattern);
+       assert(status == LTTNG_EVENT_RULE_STATUS_OK);
+       assert(name_pattern);
+
+       status = lttng_event_rule_user_tracepoint_get_filter(rule, &filter);
+       assert(status == LTTNG_EVENT_RULE_STATUS_OK ||
+                       status == LTTNG_EVENT_RULE_STATUS_UNSET);
+
+       status = lttng_event_rule_user_tracepoint_get_log_level_rule(
+                       rule, &log_level_rule);
+       assert(status == LTTNG_EVENT_RULE_STATUS_OK ||
+                       status == LTTNG_EVENT_RULE_STATUS_UNSET);
+
+       status = lttng_event_rule_user_tracepoint_get_name_pattern_exclusion_count(
+                       rule, &exclusion_count);
+       assert(status == LTTNG_EVENT_RULE_STATUS_OK);
+
+       /* Open event rule user tracepoint element. */
+       ret = mi_lttng_writer_open_element(
+                       writer, mi_lttng_element_event_rule_user_tracepoint);
+       if (ret) {
+               goto mi_error;
+       }
+
+       /* Name pattern. */
+       ret = mi_lttng_writer_write_element_string(writer,
+                       mi_lttng_element_event_rule_name_pattern, name_pattern);
+       if (ret) {
+               goto mi_error;
+       }
+
+       /* Filter expression. */
+       if (filter != NULL) {
+               ret = mi_lttng_writer_write_element_string(writer,
+                               mi_lttng_element_event_rule_filter_expression,
+                               filter);
+               if (ret) {
+                       goto mi_error;
+               }
+       }
+
+       /* Log level rule. */
+       if (log_level_rule) {
+               ret_code = lttng_log_level_rule_mi_serialize(
+                               log_level_rule, writer);
+               if (ret_code != LTTNG_OK) {
+                       goto end;
+               }
+       }
+
+       if (exclusion_count != 0) {
+               int i;
+
+               /* Open the exclusion list. */
+               ret = mi_lttng_writer_open_element(writer,
+                               mi_lttng_element_event_rule_user_tracepoint_name_pattern_exclusions);
+               if (ret) {
+                       goto mi_error;
+               }
+
+               for (i = 0; i < exclusion_count; i++) {
+                       const char *exclusion;
+
+                       status = lttng_event_rule_user_tracepoint_get_name_pattern_exclusion_at_index(
+                                       rule, i, &exclusion);
+                       assert(status == LTTNG_EVENT_RULE_STATUS_OK);
+
+                       ret = mi_lttng_writer_write_element_string(writer,
+                                       mi_lttng_element_event_rule_user_tracepoint_name_pattern_exclusion,
+                                       exclusion);
+                       if (ret) {
+                               goto mi_error;
+                       }
+               }
+
+               /* Close the list. */
+               ret = mi_lttng_writer_close_element(writer);
+               if (ret) {
+                       goto mi_error;
+               }
+       }
+
+       /* Close event rule user tracepoint element. */
+       ret = mi_lttng_writer_close_element(writer);
+       if (ret) {
+               goto mi_error;
+       }
+
+       ret_code = LTTNG_OK;
+       goto end;
+
+mi_error:
+       ret_code = LTTNG_ERR_MI_IO_FAIL;
+end:
+       return ret_code;
+}
+
 struct lttng_event_rule *lttng_event_rule_user_tracepoint_create(void)
 {
        struct lttng_event_rule *rule = NULL;
@@ -465,6 +579,7 @@ struct lttng_event_rule *lttng_event_rule_user_tracepoint_create(void)
        tp_rule->parent.generate_exclusions =
                        lttng_event_rule_user_tracepoint_generate_exclusions;
        tp_rule->parent.hash = lttng_event_rule_user_tracepoint_hash;
+       tp_rule->parent.mi_serialize = lttng_event_rule_user_tracepoint_mi_serialize;
 
        /* Not necessary for now. */
        tp_rule->parent.generate_lttng_event = NULL;