X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Ftrigger.c;h=76082a0855d05bb7571f8e017a41f244748dac6b;hp=2ef77b2360a2bf8ab1ea80cdf513da2b9d46ce2b;hb=HEAD;hpb=f01d28b41fb941aee87aaf70ed42a5928c784ba6 diff --git a/src/common/trigger.c b/src/common/trigger.c deleted file mode 100644 index 2ef77b236..000000000 --- a/src/common/trigger.c +++ /dev/null @@ -1,269 +0,0 @@ -/* - * Copyright (C) 2017 Jérémie Galarneau - * - * SPDX-License-Identifier: LGPL-2.1-only - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -LTTNG_HIDDEN -bool lttng_trigger_validate(struct lttng_trigger *trigger) -{ - bool valid; - - if (!trigger) { - valid = false; - goto end; - } - - valid = lttng_condition_validate(trigger->condition) && - lttng_action_validate(trigger->action); -end: - return valid; -} - -struct lttng_trigger *lttng_trigger_create( - struct lttng_condition *condition, - struct lttng_action *action) -{ - struct lttng_trigger *trigger = NULL; - - if (!condition || !action) { - goto end; - } - - trigger = zmalloc(sizeof(struct lttng_trigger)); - if (!trigger) { - goto end; - } - - urcu_ref_init(&trigger->ref); - - lttng_condition_get(condition); - trigger->condition = condition; - - lttng_action_get(action); - trigger->action = action; - -end: - return trigger; -} - -/* - * Note: the lack of reference counting 'get' on the condition object is normal. - * This API was exposed as such in 2.11. The client is not expected to call - * lttng_condition_destroy on the returned object. - */ -struct lttng_condition *lttng_trigger_get_condition( - struct lttng_trigger *trigger) -{ - return trigger ? trigger->condition : NULL; -} - -LTTNG_HIDDEN -const struct lttng_condition *lttng_trigger_get_const_condition( - const struct lttng_trigger *trigger) -{ - return trigger->condition; -} - - -/* - * Note: the lack of reference counting 'get' on the action object is normal. - * This API was exposed as such in 2.11. The client is not expected to call - * lttng_action_destroy on the returned object. - */ -struct lttng_action *lttng_trigger_get_action( - struct lttng_trigger *trigger) -{ - return trigger ? trigger->action : NULL; -} - -LTTNG_HIDDEN -const struct lttng_action *lttng_trigger_get_const_action( - const struct lttng_trigger *trigger) -{ - return trigger->action; -} - -static void trigger_destroy_ref(struct urcu_ref *ref) -{ - struct lttng_trigger *trigger = - container_of(ref, struct lttng_trigger, ref); - struct lttng_action *action = lttng_trigger_get_action(trigger); - struct lttng_condition *condition = - lttng_trigger_get_condition(trigger); - - assert(action); - assert(condition); - - /* Release ownership. */ - lttng_action_put(action); - lttng_condition_put(condition); - - free(trigger); -} - -void lttng_trigger_destroy(struct lttng_trigger *trigger) -{ - lttng_trigger_put(trigger); -} - -LTTNG_HIDDEN -ssize_t lttng_trigger_create_from_payload( - struct lttng_payload_view *src_view, - struct lttng_trigger **trigger) -{ - ssize_t ret, offset = 0, condition_size, action_size; - struct lttng_condition *condition = NULL; - struct lttng_action *action = NULL; - const struct lttng_trigger_comm *trigger_comm; - - if (!src_view || !trigger) { - ret = -1; - goto end; - } - - /* lttng_trigger_comm header */ - trigger_comm = (typeof(trigger_comm)) src_view->buffer.data; - offset += sizeof(*trigger_comm); - { - /* struct lttng_condition */ - struct lttng_payload_view condition_view = - lttng_payload_view_from_view( - src_view, offset, -1); - - condition_size = lttng_condition_create_from_payload(&condition_view, - &condition); - } - - if (condition_size < 0) { - ret = condition_size; - goto end; - } - - offset += condition_size; - { - /* struct lttng_action */ - struct lttng_payload_view action_view = - lttng_payload_view_from_view( - src_view, offset, -1); - - action_size = lttng_action_create_from_payload(&action_view, &action); - } - - if (action_size < 0) { - ret = action_size; - goto end; - } - offset += action_size; - - /* Unexpected size of inner-elements; the buffer is corrupted. */ - if ((ssize_t) trigger_comm->length != condition_size + action_size) { - ret = -1; - goto error; - } - - *trigger = lttng_trigger_create(condition, action); - if (!*trigger) { - ret = -1; - goto error; - } - - /* - * The trigger object owns references to the action and condition - * objects. - */ - lttng_condition_put(condition); - condition = NULL; - - lttng_action_put(action); - action = NULL; - - ret = offset; - -error: - lttng_condition_destroy(condition); - lttng_action_destroy(action); -end: - return ret; -} - -/* - * Both elements are stored contiguously, see their "*_comm" structure - * for the detailed format. - */ -LTTNG_HIDDEN -int lttng_trigger_serialize(struct lttng_trigger *trigger, - struct lttng_payload *payload) -{ - int ret; - size_t header_offset, size_before_payload; - struct lttng_trigger_comm trigger_comm = {}; - struct lttng_trigger_comm *header; - - header_offset = payload->buffer.size; - ret = lttng_dynamic_buffer_append(&payload->buffer, &trigger_comm, - sizeof(trigger_comm)); - if (ret) { - goto end; - } - - size_before_payload = payload->buffer.size; - ret = lttng_condition_serialize(trigger->condition, payload); - if (ret) { - goto end; - } - - ret = lttng_action_serialize(trigger->action, payload); - if (ret) { - goto end; - } - - /* Update payload size. */ - header = (typeof(header)) (payload->buffer.data + header_offset); - header->length = payload->buffer.size - size_before_payload; -end: - return ret; -} - -LTTNG_HIDDEN -void lttng_trigger_get(struct lttng_trigger *trigger) -{ - urcu_ref_get(&trigger->ref); -} - -LTTNG_HIDDEN -void lttng_trigger_put(struct lttng_trigger *trigger) -{ - if (!trigger) { - return; - } - - urcu_ref_put(&trigger->ref , trigger_destroy_ref); -} - -LTTNG_HIDDEN -const struct lttng_credentials *lttng_trigger_get_credentials( - const struct lttng_trigger *trigger) -{ - return LTTNG_OPTIONAL_GET_PTR(trigger->creds); -} - -LTTNG_HIDDEN -void lttng_trigger_set_credentials( - struct lttng_trigger *trigger, - const struct lttng_credentials *creds) -{ - assert(creds); - LTTNG_OPTIONAL_SET(&trigger->creds, *creds); -}