MI: implement all objects related to trigger machine interface

[lttng-tools.git] / src / common / error-query.c

diff --git a/src/common/error-query.c b/src/common/error-query.c
index 7b0872d90407a7d59f3a8b50c9b99d2633dc3326..2eb1c971715902767e6550c2971d7026c346c6b5 100644 (file)
--- a/src/common/error-query.c
+++ b/src/common/error-query.c
@@ -10,6 +10,7 @@
 #include <common/dynamic-array.h>
 #include <common/error.h>
 #include <common/macros.h>
+#include <common/mi-lttng.h>
 #include <common/sessiond-comm/sessiond-comm.h>
 #include <lttng/action/action-internal.h>
 #include <lttng/action/list-internal.h>
@@ -85,6 +86,15 @@ struct lttng_error_query_results {
        struct lttng_dynamic_pointer_array results;
 };
 
+static
+enum lttng_error_code lttng_error_query_result_mi_serialize(
+               const struct lttng_error_query_result *result,
+               struct mi_writer *writer);
+
+static
+enum lttng_error_code lttng_error_query_result_counter_mi_serialize(
+               const struct lttng_error_query_result *result,
+               struct mi_writer *writer);
 
 struct lttng_error_query *lttng_error_query_trigger_create(
                const struct lttng_trigger *trigger)
@@ -1049,3 +1059,176 @@ enum lttng_error_query_result_status lttng_error_query_result_counter_get_value(
 end:
        return status;
 }
+
+static
+enum lttng_error_code lttng_error_query_result_counter_mi_serialize(
+               const struct lttng_error_query_result *result,
+               struct mi_writer *writer)
+{
+       int ret;
+       enum lttng_error_code ret_code;
+       enum lttng_error_query_result_status status;
+       uint64_t value;
+
+       assert(result);
+       assert(writer);
+
+       status = lttng_error_query_result_counter_get_value(result, &value);
+       assert(status == LTTNG_ERROR_QUERY_RESULT_STATUS_OK);
+
+       /* Open error query result counter element. */
+       ret = mi_lttng_writer_open_element(
+                       writer, mi_lttng_element_error_query_result_counter);
+       if (ret) {
+               goto mi_error;
+       }
+
+       /* Value. */
+       ret = mi_lttng_writer_write_element_unsigned_int(writer,
+                       mi_lttng_element_error_query_result_counter_value,
+                       value);
+       if (ret) {
+               goto mi_error;
+       }
+
+       /* Close error query result counter 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;
+}
+
+static
+enum lttng_error_code lttng_error_query_result_mi_serialize(
+               const struct lttng_error_query_result *result,
+               struct mi_writer *writer)
+{
+       int ret;
+       enum lttng_error_code ret_code;
+       enum lttng_error_query_result_status result_status;
+       enum lttng_error_query_result_type type;
+       const char *name = NULL;
+       const char *description = NULL;
+
+       assert(result);
+       assert(writer);
+
+       type = lttng_error_query_result_get_type(result);
+
+       result_status = lttng_error_query_result_get_name(result, &name);
+       assert(result_status == LTTNG_ERROR_QUERY_RESULT_STATUS_OK);
+
+       result_status = lttng_error_query_result_get_description(
+                       result, &description);
+       assert(result_status == LTTNG_ERROR_QUERY_RESULT_STATUS_OK);
+
+       /* Open error query result element. */
+       ret = mi_lttng_writer_open_element(
+                       writer, mi_lttng_element_error_query_result);
+       if (ret) {
+               goto mi_error;
+       }
+
+       /* Name. */
+       ret = mi_lttng_writer_write_element_string(
+                       writer, mi_lttng_element_error_query_result_name, name);
+       if (ret) {
+               goto mi_error;
+       }
+
+       /* Description. */
+       ret = mi_lttng_writer_write_element_string(writer,
+                       mi_lttng_element_error_query_result_description,
+                       description);
+       if (ret) {
+               goto mi_error;
+       }
+
+       /* Serialize the result according to its sub type. */
+       switch (type) {
+       case LTTNG_ERROR_QUERY_RESULT_TYPE_COUNTER:
+               ret_code = lttng_error_query_result_counter_mi_serialize(
+                               result, writer);
+               break;
+       default:
+               abort();
+       }
+
+       if (ret_code != LTTNG_OK) {
+               goto end;
+       }
+
+       /* Close error query result 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;
+}
+
+LTTNG_HIDDEN
+enum lttng_error_code lttng_error_query_results_mi_serialize(
+               const struct lttng_error_query_results *results,
+               struct mi_writer *writer)
+{
+       int ret;
+       enum lttng_error_code ret_code;
+       unsigned int i, count;
+       enum lttng_error_query_results_status results_status;
+
+       assert(results);
+       assert(writer);
+
+       /* Open error query results element. */
+       ret = mi_lttng_writer_open_element(
+                       writer, mi_lttng_element_error_query_results);
+       if (ret) {
+               goto mi_error;
+       }
+
+       results_status = lttng_error_query_results_get_count(results, &count);
+       assert(results_status == LTTNG_ERROR_QUERY_RESULTS_STATUS_OK);
+
+       for (i = 0; i < count; i++) {
+               const struct lttng_error_query_result *result;
+
+               results_status = lttng_error_query_results_get_result(
+                               results, &result, i);
+               assert(results_status == LTTNG_ERROR_QUERY_RESULTS_STATUS_OK);
+
+               /* A single error query result. */
+               ret_code = lttng_error_query_result_mi_serialize(result, writer);
+               if (ret_code != LTTNG_OK) {
+                       goto end;
+               }
+       }
+
+       /* Close error query results. */
+       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;
+}