MI: implement all objects related to trigger machine interface

[lttng-tools.git] / src / common / event-rule / kernel-kprobe.c

diff --git a/src/common/event-rule/kernel-kprobe.c b/src/common/event-rule/kernel-kprobe.c
index b069bdb31b68e9ffd535af63e28ebced7ab3bee6..0b78786308b1da9cf39fdca033c17e7742802ec3 100644 (file)
--- a/src/common/event-rule/kernel-kprobe.c
+++ b/src/common/event-rule/kernel-kprobe.c
@@ -8,19 +8,20 @@
 #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/payload.h>
+#include <common/mi-lttng.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 <ctype.h>
 #include <lttng/constant.h>
-#include <lttng/event-rule/event-rule.h>
 #include <lttng/event-rule/event-rule-internal.h>
+#include <lttng/event-rule/event-rule.h>
 #include <lttng/event-rule/kernel-kprobe-internal.h>
-#include <lttng/kernel-probe.h>
 #include <lttng/kernel-probe-internal.h>
+#include <lttng/kernel-probe.h>
 #include <stdio.h>
 
 #define IS_KPROBE_EVENT_RULE(rule) \
@@ -223,6 +224,64 @@ end:
        return ret;
 }
 
+static
+enum lttng_error_code lttng_event_rule_kernel_kprobe_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 *event_name = NULL;
+       const struct lttng_kernel_probe_location *location = NULL;
+
+       assert(rule);
+       assert(writer);
+       assert(IS_KPROBE_EVENT_RULE(rule));
+
+       status = lttng_event_rule_kernel_kprobe_get_event_name(
+                       rule, &event_name);
+       assert(status == LTTNG_EVENT_RULE_STATUS_OK);
+       assert(event_name);
+
+       status = lttng_event_rule_kernel_kprobe_get_location(rule, &location);
+       assert(status == LTTNG_EVENT_RULE_STATUS_OK);
+       assert(location);
+
+       /* Open event rule kernel kprobe element. */
+       ret = mi_lttng_writer_open_element(
+                       writer, mi_lttng_element_event_rule_kernel_kprobe);
+       if (ret) {
+               goto mi_error;
+       }
+
+       /* Name. */
+       ret = mi_lttng_writer_write_element_string(writer,
+                       mi_lttng_element_event_rule_event_name, event_name);
+       if (ret) {
+               goto mi_error;
+       }
+
+       /* Probe location. */
+       ret_code = lttng_kernel_probe_location_mi_serialize(location, writer);
+       if (ret_code != LTTNG_OK) {
+               goto end;
+       }
+
+       /* Close event rule kernel kprobe 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_kernel_kprobe_create(
                const struct lttng_kernel_probe_location *location)
 {
@@ -248,6 +307,7 @@ struct lttng_event_rule *lttng_event_rule_kernel_kprobe_create(
        krule->parent.generate_exclusions =
                        lttng_event_rule_kernel_kprobe_generate_exclusions;
        krule->parent.hash = lttng_event_rule_kernel_kprobe_hash;
+       krule->parent.mi_serialize = lttng_event_rule_kernel_kprobe_mi_serialize;
 
        if (kernel_probe_set_location(krule, location)) {
                lttng_event_rule_destroy(rule);