X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fsession-rotation.c;fp=src%2Fcommon%2Fsession-rotation.c;h=0000000000000000000000000000000000000000;hp=f8d4439de06056296e1a2bc269bc37b6b0385c22;hb=1831ae68b70dece8e9b847081526495adbbf05e5;hpb=25357057de5ae4dd2a572e8f9b893c1b90cbd60a diff --git a/src/common/session-rotation.c b/src/common/session-rotation.c deleted file mode 100644 index f8d4439de..000000000 --- a/src/common/session-rotation.c +++ /dev/null @@ -1,581 +0,0 @@ -/* - * Copyright (C) 2017 Jérémie Galarneau - * - * SPDX-License-Identifier: LGPL-2.1-only - * - */ - -#include -#include -#include -#include -#include -#include -#include - -static -bool lttng_condition_session_rotation_validate( - const struct lttng_condition *condition); -static -int lttng_condition_session_rotation_serialize( - const struct lttng_condition *condition, - struct lttng_dynamic_buffer *buf); -static -bool lttng_condition_session_rotation_is_equal(const struct lttng_condition *_a, - const struct lttng_condition *_b); -static -void lttng_condition_session_rotation_destroy( - struct lttng_condition *condition); - -static const -struct lttng_condition rotation_condition_template = { - /* .type omitted; shall be set on creation. */ - .validate = lttng_condition_session_rotation_validate, - .serialize = lttng_condition_session_rotation_serialize, - .equal = lttng_condition_session_rotation_is_equal, - .destroy = lttng_condition_session_rotation_destroy, -}; - -static -int lttng_evaluation_session_rotation_serialize( - const struct lttng_evaluation *evaluation, - struct lttng_dynamic_buffer *buf); -static -void lttng_evaluation_session_rotation_destroy( - struct lttng_evaluation *evaluation); - -static const -struct lttng_evaluation rotation_evaluation_template = { - /* .type omitted; shall be set on creation. */ - .serialize = lttng_evaluation_session_rotation_serialize, - .destroy = lttng_evaluation_session_rotation_destroy, -}; - -static -bool is_rotation_condition(const struct lttng_condition *condition) -{ - enum lttng_condition_type type = lttng_condition_get_type(condition); - - return type == LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING || - type == LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED; -} - -static -bool is_rotation_evaluation(const struct lttng_evaluation *evaluation) -{ - enum lttng_condition_type type = lttng_evaluation_get_type(evaluation); - - return type == LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING || - type == LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED; -} - -static -bool lttng_condition_session_rotation_validate( - const struct lttng_condition *condition) -{ - bool valid = false; - struct lttng_condition_session_rotation *rotation; - - if (!condition) { - goto end; - } - - rotation = container_of(condition, - struct lttng_condition_session_rotation, parent); - if (!rotation->session_name) { - ERR("Invalid session rotation condition: a target session name must be set."); - goto end; - } - - valid = true; -end: - return valid; -} - -static -int lttng_condition_session_rotation_serialize( - const struct lttng_condition *condition, - struct lttng_dynamic_buffer *buf) -{ - int ret; - size_t session_name_len; - struct lttng_condition_session_rotation *rotation; - struct lttng_condition_session_rotation_comm rotation_comm; - - if (!condition || !is_rotation_condition(condition)) { - ret = -1; - goto end; - } - - DBG("Serializing session rotation condition"); - rotation = container_of(condition, struct lttng_condition_session_rotation, - parent); - - session_name_len = strlen(rotation->session_name) + 1; - if (session_name_len > LTTNG_NAME_MAX) { - ret = -1; - goto end; - } - - rotation_comm.session_name_len = session_name_len; - ret = lttng_dynamic_buffer_append(buf, &rotation_comm, - sizeof(rotation_comm)); - if (ret) { - goto end; - } - ret = lttng_dynamic_buffer_append(buf, rotation->session_name, - session_name_len); - if (ret) { - goto end; - } -end: - return ret; -} - -static -bool lttng_condition_session_rotation_is_equal(const struct lttng_condition *_a, - const struct lttng_condition *_b) -{ - bool is_equal = false; - struct lttng_condition_session_rotation *a, *b; - - a = container_of(_a, struct lttng_condition_session_rotation, parent); - b = container_of(_b, struct lttng_condition_session_rotation, parent); - - /* Both session names must be set or both must be unset. */ - if ((a->session_name && !b->session_name) || - (!a->session_name && b->session_name)) { - WARN("Comparing session rotation conditions with uninitialized session names."); - goto end; - } - - if (a->session_name && b->session_name && - strcmp(a->session_name, b->session_name)) { - goto end; - } - - is_equal = true; -end: - return is_equal; -} - -static -void lttng_condition_session_rotation_destroy( - struct lttng_condition *condition) -{ - struct lttng_condition_session_rotation *rotation; - - rotation = container_of(condition, - struct lttng_condition_session_rotation, parent); - - free(rotation->session_name); - free(rotation); -} - -static -struct lttng_condition *lttng_condition_session_rotation_create( - enum lttng_condition_type type) -{ - struct lttng_condition_session_rotation *condition; - - condition = zmalloc(sizeof(struct lttng_condition_session_rotation)); - if (!condition) { - return NULL; - } - - memcpy(&condition->parent, &rotation_condition_template, - sizeof(condition->parent)); - lttng_condition_init(&condition->parent, type); - return &condition->parent; -} - -struct lttng_condition *lttng_condition_session_rotation_ongoing_create(void) -{ - return lttng_condition_session_rotation_create( - LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING); -} - -struct lttng_condition *lttng_condition_session_rotation_completed_create(void) -{ - return lttng_condition_session_rotation_create( - LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED); -} - -static -ssize_t init_condition_from_buffer(struct lttng_condition *condition, - const struct lttng_buffer_view *src_view) -{ - ssize_t ret, condition_size; - enum lttng_condition_status status; - const struct lttng_condition_session_rotation_comm *condition_comm; - const char *session_name; - struct lttng_buffer_view name_view; - - if (src_view->size < sizeof(*condition_comm)) { - ERR("Failed to initialize from malformed condition buffer: buffer too short to contain header"); - ret = -1; - goto end; - } - - condition_comm = (const struct lttng_condition_session_rotation_comm *) src_view->data; - name_view = lttng_buffer_view_from_view(src_view, - sizeof(*condition_comm), -1); - - if (condition_comm->session_name_len > LTTNG_NAME_MAX) { - ERR("Failed to initialize from malformed condition buffer: name exceeds LTTNG_MAX_NAME"); - ret = -1; - goto end; - } - - if (name_view.size < condition_comm->session_name_len) { - ERR("Failed to initialize from malformed condition buffer: buffer too short to contain session name"); - ret = -1; - goto end; - } - - session_name = name_view.data; - if (*(session_name + condition_comm->session_name_len - 1) != '\0') { - ERR("Malformed session name encountered in condition buffer"); - ret = -1; - goto end; - } - - status = lttng_condition_session_rotation_set_session_name(condition, - session_name); - if (status != LTTNG_CONDITION_STATUS_OK) { - ERR("Failed to set buffer consumed session name"); - ret = -1; - goto end; - } - - if (!lttng_condition_validate(condition)) { - ret = -1; - goto end; - } - - condition_size = sizeof(*condition_comm) + - (ssize_t) condition_comm->session_name_len; - ret = condition_size; -end: - return ret; -} - -static -ssize_t lttng_condition_session_rotation_create_from_buffer( - const struct lttng_buffer_view *view, - struct lttng_condition **_condition, - enum lttng_condition_type type) -{ - ssize_t ret; - struct lttng_condition *condition = NULL; - - switch (type) { - case LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING: - condition = lttng_condition_session_rotation_ongoing_create(); - break; - case LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED: - condition = lttng_condition_session_rotation_completed_create(); - break; - default: - ret = -1; - goto error; - } - - if (!_condition || !condition) { - ret = -1; - goto error; - } - - ret = init_condition_from_buffer(condition, view); - if (ret < 0) { - goto error; - } - - *_condition = condition; - return ret; -error: - lttng_condition_destroy(condition); - return ret; -} - -LTTNG_HIDDEN -ssize_t lttng_condition_session_rotation_ongoing_create_from_buffer( - const struct lttng_buffer_view *view, - struct lttng_condition **condition) -{ - return lttng_condition_session_rotation_create_from_buffer(view, - condition, - LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING); -} - -LTTNG_HIDDEN -ssize_t lttng_condition_session_rotation_completed_create_from_buffer( - const struct lttng_buffer_view *view, - struct lttng_condition **condition) -{ - return lttng_condition_session_rotation_create_from_buffer(view, - condition, - LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED); -} - -static -struct lttng_evaluation *lttng_evaluation_session_rotation_create( - enum lttng_condition_type type, uint64_t id, - struct lttng_trace_archive_location *location) -{ - struct lttng_evaluation_session_rotation *evaluation; - - evaluation = zmalloc(sizeof(struct lttng_evaluation_session_rotation)); - if (!evaluation) { - return NULL; - } - - memcpy(&evaluation->parent, &rotation_evaluation_template, - sizeof(evaluation->parent)); - lttng_evaluation_init(&evaluation->parent, type); - evaluation->id = id; - evaluation->location = location; - return &evaluation->parent; -} - -static -ssize_t create_evaluation_from_buffer( - enum lttng_condition_type type, - const struct lttng_buffer_view *view, - struct lttng_evaluation **_evaluation) -{ - ssize_t ret, size; - struct lttng_evaluation *evaluation = NULL; - struct lttng_trace_archive_location *location = NULL; - const struct lttng_evaluation_session_rotation_comm *comm = - (const struct lttng_evaluation_session_rotation_comm *) view->data; - struct lttng_buffer_view location_view; - - if (view->size < sizeof(*comm)) { - goto error; - } - - size = sizeof(*comm); - if (comm->has_location) { - location_view = lttng_buffer_view_from_view(view, sizeof(*comm), - -1); - if (!location_view.data) { - goto error; - } - - ret = lttng_trace_archive_location_create_from_buffer( - &location_view, &location); - if (ret < 0) { - goto error; - } - size += ret; - } - - evaluation = lttng_evaluation_session_rotation_create(type, comm->id, - location); - if (!evaluation) { - goto error; - } - - ret = size; - *_evaluation = evaluation; - return ret; -error: - lttng_trace_archive_location_destroy(location); - evaluation = NULL; - return -1; -} - -static -ssize_t lttng_evaluation_session_rotation_create_from_buffer( - enum lttng_condition_type type, - const struct lttng_buffer_view *view, - struct lttng_evaluation **_evaluation) -{ - ssize_t ret; - struct lttng_evaluation *evaluation = NULL; - - if (!_evaluation) { - ret = -1; - goto error; - } - - ret = create_evaluation_from_buffer(type, view, &evaluation); - if (ret < 0) { - goto error; - } - - *_evaluation = evaluation; - return ret; -error: - lttng_evaluation_destroy(evaluation); - return ret; -} - -LTTNG_HIDDEN -ssize_t lttng_evaluation_session_rotation_ongoing_create_from_buffer( - const struct lttng_buffer_view *view, - struct lttng_evaluation **evaluation) -{ - return lttng_evaluation_session_rotation_create_from_buffer( - LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING, - view, evaluation); -} - -LTTNG_HIDDEN -ssize_t lttng_evaluation_session_rotation_completed_create_from_buffer( - const struct lttng_buffer_view *view, - struct lttng_evaluation **evaluation) -{ - return lttng_evaluation_session_rotation_create_from_buffer( - LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED, - view, evaluation); -} - -LTTNG_HIDDEN -struct lttng_evaluation *lttng_evaluation_session_rotation_ongoing_create( - uint64_t id) -{ - return lttng_evaluation_session_rotation_create( - LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING, id, - NULL); -} - -LTTNG_HIDDEN -struct lttng_evaluation *lttng_evaluation_session_rotation_completed_create( - uint64_t id, struct lttng_trace_archive_location *location) -{ - return lttng_evaluation_session_rotation_create( - LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED, id, - location); -} - -enum lttng_condition_status -lttng_condition_session_rotation_get_session_name( - const struct lttng_condition *condition, - const char **session_name) -{ - struct lttng_condition_session_rotation *rotation; - enum lttng_condition_status status = LTTNG_CONDITION_STATUS_OK; - - if (!condition || !is_rotation_condition(condition) || !session_name) { - status = LTTNG_CONDITION_STATUS_INVALID; - goto end; - } - - rotation = container_of(condition, struct lttng_condition_session_rotation, - parent); - if (!rotation->session_name) { - status = LTTNG_CONDITION_STATUS_UNSET; - goto end; - } - *session_name = rotation->session_name; -end: - return status; -} - -enum lttng_condition_status -lttng_condition_session_rotation_set_session_name( - struct lttng_condition *condition, const char *session_name) -{ - char *session_name_copy; - struct lttng_condition_session_rotation *rotation; - enum lttng_condition_status status = LTTNG_CONDITION_STATUS_OK; - - if (!condition || !is_rotation_condition(condition) || - !session_name || strlen(session_name) == 0) { - status = LTTNG_CONDITION_STATUS_INVALID; - goto end; - } - - rotation = container_of(condition, - struct lttng_condition_session_rotation, parent); - session_name_copy = strdup(session_name); - if (!session_name_copy) { - status = LTTNG_CONDITION_STATUS_ERROR; - goto end; - } - - free(rotation->session_name); - rotation->session_name = session_name_copy; -end: - return status; -} - -static -int lttng_evaluation_session_rotation_serialize( - const struct lttng_evaluation *evaluation, - struct lttng_dynamic_buffer *buf) -{ - int ret; - struct lttng_evaluation_session_rotation *rotation; - struct lttng_evaluation_session_rotation_comm comm = { 0 }; - - rotation = container_of(evaluation, - struct lttng_evaluation_session_rotation, parent); - comm.id = rotation->id; - comm.has_location = !!rotation->location; - ret = lttng_dynamic_buffer_append(buf, &comm, sizeof(comm)); - if (ret) { - goto end; - } - if (!rotation->location) { - goto end; - } - ret = lttng_trace_archive_location_serialize(rotation->location, - buf); -end: - return ret; -} - -static -void lttng_evaluation_session_rotation_destroy( - struct lttng_evaluation *evaluation) -{ - struct lttng_evaluation_session_rotation *rotation; - - rotation = container_of(evaluation, - struct lttng_evaluation_session_rotation, parent); - lttng_trace_archive_location_destroy(rotation->location); - free(rotation); -} - -enum lttng_evaluation_status -lttng_evaluation_session_rotation_get_id( - const struct lttng_evaluation *evaluation, uint64_t *id) -{ - const struct lttng_evaluation_session_rotation *rotation; - enum lttng_evaluation_status status = LTTNG_EVALUATION_STATUS_OK; - - if (!evaluation || !id || !is_rotation_evaluation(evaluation)) { - status = LTTNG_EVALUATION_STATUS_INVALID; - goto end; - } - - rotation = container_of(evaluation, - struct lttng_evaluation_session_rotation, parent); - *id = rotation->id; -end: - return status; -} - -enum lttng_evaluation_status -lttng_evaluation_session_rotation_completed_get_location( - const struct lttng_evaluation *evaluation, - const struct lttng_trace_archive_location **location) -{ - const struct lttng_evaluation_session_rotation *rotation; - enum lttng_evaluation_status status = LTTNG_EVALUATION_STATUS_OK; - - if (!evaluation || !location || - evaluation->type != LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED) { - status = LTTNG_EVALUATION_STATUS_INVALID; - goto end; - } - - rotation = container_of(evaluation, - struct lttng_evaluation_session_rotation, parent); - *location = rotation->location; -end: - return status; -}