+++ /dev/null
-/*
- * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * SPDX-License-Identifier: LGPL-2.1-only
- *
- */
-
-#include <common/buffer-view.h>
-#include <common/dynamic-buffer.h>
-#include <common/error.h>
-#include <common/macros.h>
-#include <common/mi-lttng.h>
-#include <lttng/condition/buffer-usage-internal.h>
-#include <lttng/condition/condition-internal.h>
-#include <lttng/condition/event-rule-matches-internal.h>
-#include <lttng/condition/session-consumed-size-internal.h>
-#include <lttng/condition/session-rotation-internal.h>
-#include <lttng/error-query-internal.h>
-#include <stdbool.h>
-
-enum lttng_condition_type lttng_condition_get_type(
- const struct lttng_condition *condition)
-{
- return condition ? condition->type : LTTNG_CONDITION_TYPE_UNKNOWN;
-}
-
-void lttng_condition_destroy(struct lttng_condition *condition)
-{
- lttng_condition_put(condition);
-}
-
-static void condition_destroy_ref(struct urcu_ref *ref)
-{
- struct lttng_condition *condition =
- container_of(ref, struct lttng_condition, ref);
-
- condition->destroy(condition);
-}
-
-void lttng_condition_get(struct lttng_condition *condition)
-{
- urcu_ref_get(&condition->ref);
-}
-
-void lttng_condition_put(struct lttng_condition *condition)
-{
- if (!condition) {
- return;
- }
-
- LTTNG_ASSERT(condition->destroy);
- urcu_ref_put(&condition->ref, condition_destroy_ref);
-}
-
-
-bool lttng_condition_validate(const struct lttng_condition *condition)
-{
- bool valid;
-
- if (!condition) {
- valid = false;
- goto end;
- }
-
- if (!condition->validate) {
- /* Sub-class guarantees that it can never be invalid. */
- valid = true;
- goto end;
- }
-
- valid = condition->validate(condition);
-end:
- return valid;
-}
-
-int lttng_condition_serialize(const struct lttng_condition *condition,
- struct lttng_payload *payload)
-{
- int ret;
- struct lttng_condition_comm condition_comm = {};
-
- if (!condition) {
- ret = -1;
- goto end;
- }
-
- condition_comm.condition_type = (int8_t) condition->type;
-
- ret = lttng_dynamic_buffer_append(&payload->buffer, &condition_comm,
- sizeof(condition_comm));
- if (ret) {
- goto end;
- }
-
- ret = condition->serialize(condition, payload);
- if (ret) {
- goto end;
- }
-end:
- return ret;
-}
-
-bool lttng_condition_is_equal(const struct lttng_condition *a,
- const struct lttng_condition *b)
-{
- bool is_equal = false;
-
- if (!a || !b) {
- goto end;
- }
-
- if (a->type != b->type) {
- goto end;
- }
-
- if (a == b) {
- is_equal = true;
- goto end;
- }
-
- is_equal = a->equal ? a->equal(a, b) : true;
-end:
- return is_equal;
-}
-
-ssize_t lttng_condition_create_from_payload(
- struct lttng_payload_view *view,
- struct lttng_condition **condition)
-{
- ssize_t ret, condition_size = 0;
- condition_create_from_payload_cb create_from_payload = NULL;
- const struct lttng_condition_comm *condition_comm;
- const struct lttng_payload_view condition_comm_view =
- lttng_payload_view_from_view(
- view, 0, sizeof(*condition_comm));
-
- if (!view || !condition) {
- ret = -1;
- goto end;
- }
-
- if (!lttng_payload_view_is_valid(&condition_comm_view)) {
- /* Payload not large enough to contain the header. */
- ret = -1;
- goto end;
- }
-
- DBG("Deserializing condition from buffer");
- condition_comm = (typeof(condition_comm)) condition_comm_view.buffer.data;
- condition_size += sizeof(*condition_comm);
-
- switch ((enum lttng_condition_type) condition_comm->condition_type) {
- case LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW:
- create_from_payload = lttng_condition_buffer_usage_low_create_from_payload;
- break;
- case LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH:
- create_from_payload = lttng_condition_buffer_usage_high_create_from_payload;
- break;
- case LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE:
- create_from_payload = lttng_condition_session_consumed_size_create_from_payload;
- break;
- case LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING:
- create_from_payload = lttng_condition_session_rotation_ongoing_create_from_payload;
- break;
- case LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED:
- create_from_payload = lttng_condition_session_rotation_completed_create_from_payload;
- break;
- case LTTNG_CONDITION_TYPE_EVENT_RULE_MATCHES:
- create_from_payload =
- lttng_condition_event_rule_matches_create_from_payload;
- break;
- default:
- ERR("Attempted to create condition of unknown type (%i)",
- (int) condition_comm->condition_type);
- ret = -1;
- goto end;
- }
-
- if (create_from_payload) {
- struct lttng_payload_view condition_view =
- lttng_payload_view_from_view(view,
- sizeof(*condition_comm), -1);
-
- ret = create_from_payload(&condition_view, condition);
- if (ret < 0) {
- goto end;
- }
- condition_size += ret;
-
- } else {
- abort();
- }
-
- ret = condition_size;
-end:
- return ret;
-}
-
-void lttng_condition_init(struct lttng_condition *condition,
- enum lttng_condition_type type)
-{
- condition->type = type;
- urcu_ref_init(&condition->ref);
-}
-
-const char *lttng_condition_type_str(enum lttng_condition_type type)
-{
- switch (type) {
- case LTTNG_CONDITION_TYPE_UNKNOWN:
- return "unknown";
-
- case LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE:
- return "session consumed size";
-
- case LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH:
- return "buffer usage high";
-
- case LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW:
- return "buffer usage low";
-
- case LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING:
- return "session rotation ongoing";
-
- case LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED:
- return "session rotation completed";
-
- case LTTNG_CONDITION_TYPE_EVENT_RULE_MATCHES:
- return "event rule matches";
-
- default:
- return "???";
- }
-}
-
-enum lttng_error_code lttng_condition_mi_serialize(
- const struct lttng_trigger *trigger,
- const struct lttng_condition *condition,
- struct mi_writer *writer,
- const struct mi_lttng_error_query_callbacks *error_query_callbacks)
-{
- int ret;
- enum lttng_error_code ret_code;
- struct lttng_error_query_results *error_query_results = NULL;
-
- LTTNG_ASSERT(condition);
- LTTNG_ASSERT(writer);
- LTTNG_ASSERT(condition->mi_serialize);
-
- /* Open condition element. */
- ret = mi_lttng_writer_open_element(writer, mi_lttng_element_condition);
- if (ret) {
- goto mi_error;
- }
-
- /* Serialize underlying condition. */
- ret_code = condition->mi_serialize(condition, writer);
- if (ret_code != LTTNG_OK) {
- goto end;
- }
-
- /* Serialize error query results for the action. */
- if (error_query_callbacks && error_query_callbacks->action_cb) {
- ret_code = error_query_callbacks->condition_cb(
- trigger, &error_query_results);
- if (ret_code != LTTNG_OK) {
- goto end;
- }
-
- ret_code = lttng_error_query_results_mi_serialize(
- error_query_results, writer);
- if (ret_code != LTTNG_OK) {
- goto end;
- }
- }
-
- /* Close condition 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:
- lttng_error_query_results_destroy(error_query_results);
- return ret_code;
-}
projects / lttng-tools.git / blobdiff