+++ /dev/null
-/*
- * SPDX-License-Identifier: MIT
- *
- * Copyright 2015-2017 Philippe Proulx <pproulx@efficios.com>
- * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * Babeltrace CTF file system Reader Component
- */
-
-#define BT_COMP_LOG_SELF_COMP self_comp
-#define BT_LOG_OUTPUT_LEVEL log_level
-#define BT_LOG_TAG "PLUGIN/SRC.CTF.FS"
-#include "logging/comp-logging.h"
-
-#include "common/common.h"
-#include <babeltrace2/babeltrace.h>
-#include "common/uuid.h"
-#include <glib.h>
-#include "common/assert.h"
-#include <inttypes.h>
-#include <stdbool.h>
-#include "fs.h"
-#include "metadata.h"
-#include "data-stream-file.h"
-#include "file.h"
-#include "../common/metadata/decoder.h"
-#include "../common/metadata/ctf-meta-configure-ir-trace.h"
-#include "../common/msg-iter/msg-iter.h"
-#include "query.h"
-#include "plugins/common/param-validation/param-validation.h"
-
-struct tracer_info {
- const char *name;
- int64_t major;
- int64_t minor;
- int64_t patch;
-};
-
-static
-void ctf_fs_msg_iter_data_destroy(
- struct ctf_fs_msg_iter_data *msg_iter_data)
-{
- if (!msg_iter_data) {
- return;
- }
-
- if (msg_iter_data->msg_iter) {
- ctf_msg_iter_destroy(msg_iter_data->msg_iter);
- }
-
- if (msg_iter_data->msg_iter_medops_data) {
- ctf_fs_ds_group_medops_data_destroy(
- msg_iter_data->msg_iter_medops_data);
- }
-
- g_free(msg_iter_data);
-}
-
-static
-bt_message_iterator_class_next_method_status ctf_fs_iterator_next_one(
- struct ctf_fs_msg_iter_data *msg_iter_data,
- const bt_message **out_msg)
-{
- bt_message_iterator_class_next_method_status status;
- enum ctf_msg_iter_status msg_iter_status;
- bt_logging_level log_level = msg_iter_data->log_level;
-
- msg_iter_status = ctf_msg_iter_get_next_message(
- msg_iter_data->msg_iter, out_msg);
-
- switch (msg_iter_status) {
- case CTF_MSG_ITER_STATUS_OK:
- /* Cool, message has been written to *out_msg. */
- status = BT_MESSAGE_ITERATOR_CLASS_NEXT_METHOD_STATUS_OK;
- break;
-
- case CTF_MSG_ITER_STATUS_EOF:
- status = BT_MESSAGE_ITERATOR_CLASS_NEXT_METHOD_STATUS_END;
- break;
-
- case CTF_MSG_ITER_STATUS_AGAIN:
- /*
- * Should not make it this far as this is
- * medium-specific; there is nothing for the user to do
- * and it should have been handled upstream.
- */
- bt_common_abort();
-
- case CTF_MSG_ITER_STATUS_ERROR:
- BT_MSG_ITER_LOGE_APPEND_CAUSE(msg_iter_data->self_msg_iter,
- "Failed to get next message from CTF message iterator.");
- status = BT_MESSAGE_ITERATOR_CLASS_NEXT_METHOD_STATUS_ERROR;
- break;
-
- case CTF_MSG_ITER_STATUS_MEMORY_ERROR:
- BT_MSG_ITER_LOGE_APPEND_CAUSE(msg_iter_data->self_msg_iter,
- "Failed to get next message from CTF message iterator.");
- status = BT_MESSAGE_ITERATOR_CLASS_NEXT_METHOD_STATUS_MEMORY_ERROR;
- break;
-
- default:
- bt_common_abort();
- }
-
- return status;
-}
-
-BT_HIDDEN
-bt_message_iterator_class_next_method_status ctf_fs_iterator_next(
- bt_self_message_iterator *iterator,
- bt_message_array_const msgs, uint64_t capacity,
- uint64_t *count)
-{
- bt_message_iterator_class_next_method_status status;
- struct ctf_fs_msg_iter_data *msg_iter_data =
- bt_self_message_iterator_get_data(iterator);
- uint64_t i = 0;
-
- if (G_UNLIKELY(msg_iter_data->next_saved_error)) {
- /*
- * Last time we were called, we hit an error but had some
- * messages to deliver, so we stashed the error here. Return
- * it now.
- */
- BT_CURRENT_THREAD_MOVE_ERROR_AND_RESET(msg_iter_data->next_saved_error);
- status = msg_iter_data->next_saved_status;
- goto end;
- }
-
- do {
- status = ctf_fs_iterator_next_one(msg_iter_data, &msgs[i]);
- if (status == BT_MESSAGE_ITERATOR_CLASS_NEXT_METHOD_STATUS_OK) {
- i++;
- }
- } while (i < capacity &&
- status == BT_MESSAGE_ITERATOR_CLASS_NEXT_METHOD_STATUS_OK);
-
- if (i > 0) {
- /*
- * Even if ctf_fs_iterator_next_one() returned something
- * else than BT_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK, we
- * accumulated message objects in the output
- * message array, so we need to return
- * BT_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK so that they are
- * transfered to downstream. This other status occurs
- * again the next time muxer_msg_iter_do_next() is
- * called, possibly without any accumulated
- * message, in which case we'll return it.
- */
- if (status < 0) {
- /*
- * Save this error for the next _next call. Assume that
- * this component always appends error causes when
- * returning an error status code, which will cause the
- * current thread error to be non-NULL.
- */
- msg_iter_data->next_saved_error = bt_current_thread_take_error();
- BT_ASSERT(msg_iter_data->next_saved_error);
- msg_iter_data->next_saved_status = status;
- }
-
- *count = i;
- status = BT_MESSAGE_ITERATOR_CLASS_NEXT_METHOD_STATUS_OK;
- }
-
-end:
- return status;
-}
-
-BT_HIDDEN
-bt_message_iterator_class_seek_beginning_method_status
-ctf_fs_iterator_seek_beginning(bt_self_message_iterator *it)
-{
- struct ctf_fs_msg_iter_data *msg_iter_data =
- bt_self_message_iterator_get_data(it);
-
- BT_ASSERT(msg_iter_data);
-
- ctf_msg_iter_reset(msg_iter_data->msg_iter);
- ctf_fs_ds_group_medops_data_reset(msg_iter_data->msg_iter_medops_data);
-
- return BT_MESSAGE_ITERATOR_CLASS_SEEK_BEGINNING_METHOD_STATUS_OK;
-}
-
-BT_HIDDEN
-void ctf_fs_iterator_finalize(bt_self_message_iterator *it)
-{
- ctf_fs_msg_iter_data_destroy(
- bt_self_message_iterator_get_data(it));
-}
-
-static
-bt_message_iterator_class_initialize_method_status
-ctf_msg_iter_medium_status_to_msg_iter_initialize_status
- (enum ctf_msg_iter_medium_status status)
-{
- switch (status) {
- case CTF_MSG_ITER_MEDIUM_STATUS_EOF:
- case CTF_MSG_ITER_MEDIUM_STATUS_AGAIN:
- case CTF_MSG_ITER_MEDIUM_STATUS_ERROR:
- return BT_MESSAGE_ITERATOR_CLASS_INITIALIZE_METHOD_STATUS_ERROR;
- case CTF_MSG_ITER_MEDIUM_STATUS_MEMORY_ERROR:
- return BT_MESSAGE_ITERATOR_CLASS_INITIALIZE_METHOD_STATUS_MEMORY_ERROR;
- case CTF_MSG_ITER_MEDIUM_STATUS_OK:
- return BT_MESSAGE_ITERATOR_CLASS_INITIALIZE_METHOD_STATUS_OK;
- }
-
- bt_common_abort();
-}
-
-BT_HIDDEN
-bt_message_iterator_class_initialize_method_status ctf_fs_iterator_init(
- bt_self_message_iterator *self_msg_iter,
- bt_self_message_iterator_configuration *config,
- bt_self_component_port_output *self_port)
-{
- struct ctf_fs_port_data *port_data;
- struct ctf_fs_msg_iter_data *msg_iter_data = NULL;
- bt_message_iterator_class_initialize_method_status status;
- bt_logging_level log_level;
- enum ctf_msg_iter_medium_status medium_status;
- bt_self_component *self_comp =
- bt_self_message_iterator_borrow_component(self_msg_iter);
-
- port_data = bt_self_component_port_get_data(
- bt_self_component_port_output_as_self_component_port(
- self_port));
- BT_ASSERT(port_data);
- log_level = port_data->ctf_fs->log_level;
- msg_iter_data = g_new0(struct ctf_fs_msg_iter_data, 1);
- if (!msg_iter_data) {
- status = BT_MESSAGE_ITERATOR_CLASS_INITIALIZE_METHOD_STATUS_MEMORY_ERROR;
- goto error;
- }
-
- msg_iter_data->log_level = log_level;
- msg_iter_data->self_comp = self_comp;
- msg_iter_data->self_msg_iter = self_msg_iter;
- msg_iter_data->ds_file_group = port_data->ds_file_group;
-
- medium_status = ctf_fs_ds_group_medops_data_create(
- msg_iter_data->ds_file_group, self_msg_iter, log_level,
- &msg_iter_data->msg_iter_medops_data);
- BT_ASSERT(
- medium_status == CTF_MSG_ITER_MEDIUM_STATUS_OK ||
- medium_status == CTF_MSG_ITER_MEDIUM_STATUS_ERROR ||
- medium_status == CTF_MSG_ITER_MEDIUM_STATUS_MEMORY_ERROR);
- if (medium_status != CTF_MSG_ITER_MEDIUM_STATUS_OK) {
- BT_MSG_ITER_LOGE_APPEND_CAUSE(self_msg_iter,
- "Failed to create ctf_fs_ds_group_medops");
- status = ctf_msg_iter_medium_status_to_msg_iter_initialize_status(medium_status);
- goto error;
- }
-
- msg_iter_data->msg_iter = ctf_msg_iter_create(
- msg_iter_data->ds_file_group->ctf_fs_trace->metadata->tc,
- bt_common_get_page_size(msg_iter_data->log_level) * 8,
- ctf_fs_ds_group_medops,
- msg_iter_data->msg_iter_medops_data,
- msg_iter_data->log_level,
- self_comp, self_msg_iter);
- if (!msg_iter_data->msg_iter) {
- BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Cannot create a CTF message iterator.");
- status = BT_MESSAGE_ITERATOR_CLASS_INITIALIZE_METHOD_STATUS_MEMORY_ERROR;
- goto error;
- }
-
- /*
- * This iterator can seek forward if its stream class has a default
- * clock class.
- */
- if (msg_iter_data->ds_file_group->sc->default_clock_class) {
- bt_self_message_iterator_configuration_set_can_seek_forward(
- config, true);
- }
-
- bt_self_message_iterator_set_data(self_msg_iter,
- msg_iter_data);
- msg_iter_data = NULL;
-
- status = BT_MESSAGE_ITERATOR_CLASS_INITIALIZE_METHOD_STATUS_OK;
- goto end;
-
-error:
- bt_self_message_iterator_set_data(self_msg_iter, NULL);
-
-end:
- ctf_fs_msg_iter_data_destroy(msg_iter_data);
- return status;
-}
-
-static
-void ctf_fs_trace_destroy(struct ctf_fs_trace *ctf_fs_trace)
-{
- if (!ctf_fs_trace) {
- return;
- }
-
- if (ctf_fs_trace->ds_file_groups) {
- g_ptr_array_free(ctf_fs_trace->ds_file_groups, TRUE);
- }
-
- BT_TRACE_PUT_REF_AND_RESET(ctf_fs_trace->trace);
-
- if (ctf_fs_trace->path) {
- g_string_free(ctf_fs_trace->path, TRUE);
- }
-
- if (ctf_fs_trace->metadata) {
- ctf_fs_metadata_fini(ctf_fs_trace->metadata);
- g_free(ctf_fs_trace->metadata);
- }
-
- g_free(ctf_fs_trace);
-}
-
-BT_HIDDEN
-void ctf_fs_destroy(struct ctf_fs_component *ctf_fs)
-{
- if (!ctf_fs) {
- return;
- }
-
- ctf_fs_trace_destroy(ctf_fs->trace);
-
- if (ctf_fs->port_data) {
- g_ptr_array_free(ctf_fs->port_data, TRUE);
- }
-
- g_free(ctf_fs);
-}
-
-static
-void port_data_destroy(struct ctf_fs_port_data *port_data)
-{
- if (!port_data) {
- return;
- }
-
- g_free(port_data);
-}
-
-static
-void port_data_destroy_notifier(void *data) {
- port_data_destroy(data);
-}
-
-static
-void ctf_fs_trace_destroy_notifier(void *data)
-{
- struct ctf_fs_trace *trace = data;
- ctf_fs_trace_destroy(trace);
-}
-
-struct ctf_fs_component *ctf_fs_component_create(bt_logging_level log_level,
- bt_self_component *self_comp)
-{
- struct ctf_fs_component *ctf_fs;
-
- ctf_fs = g_new0(struct ctf_fs_component, 1);
- if (!ctf_fs) {
- goto error;
- }
-
- ctf_fs->log_level = log_level;
- ctf_fs->port_data =
- g_ptr_array_new_with_free_func(port_data_destroy_notifier);
- if (!ctf_fs->port_data) {
- goto error;
- }
-
- goto end;
-
-error:
- ctf_fs_destroy(ctf_fs);
- ctf_fs = NULL;
-
-end:
- return ctf_fs;
-}
-
-void ctf_fs_finalize(bt_self_component_source *component)
-{
- ctf_fs_destroy(bt_self_component_get_data(
- bt_self_component_source_as_self_component(component)));
-}
-
-gchar *ctf_fs_make_port_name(struct ctf_fs_ds_file_group *ds_file_group)
-{
- GString *name = g_string_new(NULL);
-
- /*
- * The unique port name is generated by concatenating unique identifiers
- * for:
- *
- * - the trace
- * - the stream class
- * - the stream
- */
-
- /* For the trace, use the uuid if present, else the path. */
- if (ds_file_group->ctf_fs_trace->metadata->tc->is_uuid_set) {
- char uuid_str[BT_UUID_STR_LEN + 1];
-
- bt_uuid_to_str(ds_file_group->ctf_fs_trace->metadata->tc->uuid, uuid_str);
- g_string_assign(name, uuid_str);
- } else {
- g_string_assign(name, ds_file_group->ctf_fs_trace->path->str);
- }
-
- /*
- * For the stream class, use the id if present. We can omit this field
- * otherwise, as there will only be a single stream class.
- */
- if (ds_file_group->sc->id != UINT64_C(-1)) {
- g_string_append_printf(name, " | %" PRIu64, ds_file_group->sc->id);
- }
-
- /* For the stream, use the id if present, else, use the path. */
- if (ds_file_group->stream_id != UINT64_C(-1)) {
- g_string_append_printf(name, " | %" PRIu64, ds_file_group->stream_id);
- } else {
- BT_ASSERT(ds_file_group->ds_file_infos->len == 1);
- struct ctf_fs_ds_file_info *ds_file_info =
- g_ptr_array_index(ds_file_group->ds_file_infos, 0);
- g_string_append_printf(name, " | %s", ds_file_info->path->str);
- }
-
- return g_string_free(name, FALSE);
-}
-
-static
-int create_one_port_for_trace(struct ctf_fs_component *ctf_fs,
- struct ctf_fs_trace *ctf_fs_trace,
- struct ctf_fs_ds_file_group *ds_file_group,
- bt_self_component_source *self_comp_src)
-{
- int ret = 0;
- struct ctf_fs_port_data *port_data = NULL;
- gchar *port_name;
- bt_logging_level log_level = ctf_fs->log_level;
- bt_self_component *self_comp =
- bt_self_component_source_as_self_component(self_comp_src);
-
- port_name = ctf_fs_make_port_name(ds_file_group);
- if (!port_name) {
- goto error;
- }
-
- BT_COMP_LOGI("Creating one port named `%s`", port_name);
-
- /* Create output port for this file */
- port_data = g_new0(struct ctf_fs_port_data, 1);
- if (!port_data) {
- goto error;
- }
-
- port_data->ctf_fs = ctf_fs;
- port_data->ds_file_group = ds_file_group;
- ret = bt_self_component_source_add_output_port(
- self_comp_src, port_name, port_data, NULL);
- if (ret) {
- goto error;
- }
-
- g_ptr_array_add(ctf_fs->port_data, port_data);
- port_data = NULL;
- goto end;
-
-error:
- ret = -1;
-
-end:
- g_free(port_name);
-
- port_data_destroy(port_data);
- return ret;
-}
-
-static
-int create_ports_for_trace(struct ctf_fs_component *ctf_fs,
- struct ctf_fs_trace *ctf_fs_trace,
- bt_self_component_source *self_comp_src)
-{
- int ret = 0;
- size_t i;
- bt_logging_level log_level = ctf_fs_trace->log_level;
- bt_self_component *self_comp =
- bt_self_component_source_as_self_component(self_comp_src);
-
- /* Create one output port for each stream file group */
- for (i = 0; i < ctf_fs_trace->ds_file_groups->len; i++) {
- struct ctf_fs_ds_file_group *ds_file_group =
- g_ptr_array_index(ctf_fs_trace->ds_file_groups, i);
-
- ret = create_one_port_for_trace(ctf_fs, ctf_fs_trace,
- ds_file_group, self_comp_src);
- if (ret) {
- BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Cannot create output port.");
- goto end;
- }
- }
-
-end:
- return ret;
-}
-
-static
-void ctf_fs_ds_file_info_destroy(struct ctf_fs_ds_file_info *ds_file_info)
-{
- if (!ds_file_info) {
- return;
- }
-
- if (ds_file_info->path) {
- g_string_free(ds_file_info->path, TRUE);
- }
-
- g_free(ds_file_info);
-}
-
-static
-struct ctf_fs_ds_file_info *ctf_fs_ds_file_info_create(const char *path,
- int64_t begin_ns)
-{
- struct ctf_fs_ds_file_info *ds_file_info;
-
- ds_file_info = g_new0(struct ctf_fs_ds_file_info, 1);
- if (!ds_file_info) {
- goto end;
- }
-
- ds_file_info->path = g_string_new(path);
- if (!ds_file_info->path) {
- ctf_fs_ds_file_info_destroy(ds_file_info);
- ds_file_info = NULL;
- goto end;
- }
-
- ds_file_info->begin_ns = begin_ns;
-
-end:
- return ds_file_info;
-}
-
-static
-void ctf_fs_ds_file_group_destroy(struct ctf_fs_ds_file_group *ds_file_group)
-{
- if (!ds_file_group) {
- return;
- }
-
- if (ds_file_group->ds_file_infos) {
- g_ptr_array_free(ds_file_group->ds_file_infos, TRUE);
- }
-
- ctf_fs_ds_index_destroy(ds_file_group->index);
-
- bt_stream_put_ref(ds_file_group->stream);
- g_free(ds_file_group);
-}
-
-static
-struct ctf_fs_ds_file_group *ctf_fs_ds_file_group_create(
- struct ctf_fs_trace *ctf_fs_trace,
- struct ctf_stream_class *sc,
- uint64_t stream_instance_id,
- struct ctf_fs_ds_index *index)
-{
- struct ctf_fs_ds_file_group *ds_file_group;
-
- ds_file_group = g_new0(struct ctf_fs_ds_file_group, 1);
- if (!ds_file_group) {
- goto error;
- }
-
- ds_file_group->ds_file_infos = g_ptr_array_new_with_free_func(
- (GDestroyNotify) ctf_fs_ds_file_info_destroy);
- if (!ds_file_group->ds_file_infos) {
- goto error;
- }
-
- ds_file_group->index = index;
-
- ds_file_group->stream_id = stream_instance_id;
- BT_ASSERT(sc);
- ds_file_group->sc = sc;
- ds_file_group->ctf_fs_trace = ctf_fs_trace;
- goto end;
-
-error:
- ctf_fs_ds_file_group_destroy(ds_file_group);
- ctf_fs_ds_index_destroy(index);
- ds_file_group = NULL;
-
-end:
- return ds_file_group;
-}
-
-/* Replace by g_ptr_array_insert when we depend on glib >= 2.40. */
-static
-void array_insert(GPtrArray *array, gpointer element, size_t pos)
-{
- size_t original_array_len = array->len;
-
- /* Allocate an unused element at the end of the array. */
- g_ptr_array_add(array, NULL);
-
- /* If we are not inserting at the end, move the elements by one. */
- if (pos < original_array_len) {
- memmove(&(array->pdata[pos + 1]),
- &(array->pdata[pos]),
- (original_array_len - pos) * sizeof(gpointer));
- }
-
- /* Insert the value. */
- array->pdata[pos] = element;
-}
-
-/*
- * Insert ds_file_info in ds_file_group's list of ds_file_infos at the right
- * place to keep it sorted.
- */
-
-static
-void ds_file_group_insert_ds_file_info_sorted(
- struct ctf_fs_ds_file_group *ds_file_group,
- struct ctf_fs_ds_file_info *ds_file_info)
-{
- guint i;
-
- /* Find the spot where to insert this ds_file_info. */
- for (i = 0; i < ds_file_group->ds_file_infos->len; i++) {
- struct ctf_fs_ds_file_info *other_ds_file_info =
- g_ptr_array_index(ds_file_group->ds_file_infos, i);
-
- if (ds_file_info->begin_ns < other_ds_file_info->begin_ns) {
- break;
- }
- }
-
- array_insert(ds_file_group->ds_file_infos, ds_file_info, i);
-}
-
-static
-bool ds_index_entries_equal(
- const struct ctf_fs_ds_index_entry *left,
- const struct ctf_fs_ds_index_entry *right)
-{
- if (left->packet_size != right->packet_size) {
- return false;
- }
-
- if (left->timestamp_begin != right->timestamp_begin) {
- return false;
- }
-
- if (left->timestamp_end != right->timestamp_end) {
- return false;
- }
-
- if (left->packet_seq_num != right->packet_seq_num) {
- return false;
- }
-
- return true;
-}
-
-/*
- * Insert `entry` into `index`, without duplication.
- *
- * The entry is inserted only if there isn't an identical entry already.
- *
- * In any case, the ownership of `entry` is transferred to this function. So if
- * the entry is not inserted, it is freed.
- */
-
-static
-void ds_index_insert_ds_index_entry_sorted(
- struct ctf_fs_ds_index *index,
- struct ctf_fs_ds_index_entry *entry)
-{
- guint i;
- struct ctf_fs_ds_index_entry *other_entry = NULL;
-
- /* Find the spot where to insert this index entry. */
- for (i = 0; i < index->entries->len; i++) {
- other_entry = g_ptr_array_index(index->entries, i);
-
- if (entry->timestamp_begin_ns <= other_entry->timestamp_begin_ns) {
- break;
- }
- }
-
- /*
- * Insert the entry only if a duplicate doesn't already exist.
- *
- * There can be duplicate packets if reading multiple overlapping
- * snapshots of the same trace. We then want the index to contain
- * a reference to only one copy of that packet.
- */
- if (i == index->entries->len ||
- !ds_index_entries_equal(entry, other_entry)) {
- array_insert(index->entries, entry, i);
- } else {
- g_free(entry);
- }
-}
-
-static
-void merge_ctf_fs_ds_indexes(struct ctf_fs_ds_index *dest, struct ctf_fs_ds_index *src)
-{
- guint i;
-
- for (i = 0; i < src->entries->len; i++) {
- struct ctf_fs_ds_index_entry *entry =
- g_ptr_array_index(src->entries, i);
-
- /*
- * Ownership of the ctf_fs_ds_index_entry is transferred to
- * ds_index_insert_ds_index_entry_sorted.
- */
- g_ptr_array_index(src->entries, i) = NULL;
- ds_index_insert_ds_index_entry_sorted(dest, entry);
- }
-}
-
-static
-int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace,
- const char *path)
-{
- int64_t stream_instance_id = -1;
- int64_t begin_ns = -1;
- struct ctf_fs_ds_file_group *ds_file_group = NULL;
- bool add_group = false;
- int ret;
- size_t i;
- struct ctf_fs_ds_file *ds_file = NULL;
- struct ctf_fs_ds_file_info *ds_file_info = NULL;
- struct ctf_fs_ds_index *index = NULL;
- struct ctf_msg_iter *msg_iter = NULL;
- struct ctf_stream_class *sc = NULL;
- struct ctf_msg_iter_packet_properties props;
- bt_logging_level log_level = ctf_fs_trace->log_level;
- bt_self_component *self_comp = ctf_fs_trace->self_comp;
- bt_self_component_class *self_comp_class = ctf_fs_trace->self_comp_class;
-
- /*
- * Create a temporary ds_file to read some properties about the data
- * stream file.
- */
- ds_file = ctf_fs_ds_file_create(ctf_fs_trace, NULL, NULL, path,
- log_level);
- if (!ds_file) {
- goto error;
- }
-
- /* Create a temporary iterator to read the ds_file. */
- msg_iter = ctf_msg_iter_create(ctf_fs_trace->metadata->tc,
- bt_common_get_page_size(log_level) * 8,
- ctf_fs_ds_file_medops, ds_file, log_level, self_comp, NULL);
- if (!msg_iter) {
- BT_COMP_LOGE_STR("Cannot create a CTF message iterator.");
- goto error;
- }
-
- ctf_msg_iter_set_dry_run(msg_iter, true);
-
- ret = ctf_msg_iter_get_packet_properties(msg_iter, &props);
- if (ret) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Cannot get stream file's first packet's header and context fields (`%s`).",
- path);
- goto error;
- }
-
- sc = ctf_trace_class_borrow_stream_class_by_id(ds_file->metadata->tc,
- props.stream_class_id);
- BT_ASSERT(sc);
- stream_instance_id = props.data_stream_id;
-
- if (props.snapshots.beginning_clock != UINT64_C(-1)) {
- BT_ASSERT(sc->default_clock_class);
- ret = bt_util_clock_cycles_to_ns_from_origin(
- props.snapshots.beginning_clock,
- sc->default_clock_class->frequency,
- sc->default_clock_class->offset_seconds,
- sc->default_clock_class->offset_cycles, &begin_ns);
- if (ret) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Cannot convert clock cycles to nanoseconds from origin (`%s`).",
- path);
- goto error;
- }
- }
-
- ds_file_info = ctf_fs_ds_file_info_create(path, begin_ns);
- if (!ds_file_info) {
- goto error;
- }
-
- index = ctf_fs_ds_file_build_index(ds_file, ds_file_info, msg_iter);
- if (!index) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(
- self_comp, self_comp_class,
- "Failed to index CTF stream file \'%s\'",
- ds_file->file->path->str);
- goto error;
- }
-
- if (begin_ns == -1) {
- /*
- * No beginning timestamp to sort the stream files
- * within a stream file group, so consider that this
- * file must be the only one within its group.
- */
- stream_instance_id = -1;
- }
-
- if (stream_instance_id == -1) {
- /*
- * No stream instance ID or no beginning timestamp:
- * create a unique stream file group for this stream
- * file because, even if there's a stream instance ID,
- * there's no timestamp to order the file within its
- * group.
- */
- ds_file_group = ctf_fs_ds_file_group_create(ctf_fs_trace,
- sc, UINT64_C(-1), index);
- /* Ownership of index is transferred. */
- index = NULL;
-
- if (!ds_file_group) {
- goto error;
- }
-
- ds_file_group_insert_ds_file_info_sorted(ds_file_group,
- BT_MOVE_REF(ds_file_info));
-
- add_group = true;
- goto end;
- }
-
- BT_ASSERT(stream_instance_id != -1);
- BT_ASSERT(begin_ns != -1);
-
- /* Find an existing stream file group with this ID */
- for (i = 0; i < ctf_fs_trace->ds_file_groups->len; i++) {
- ds_file_group = g_ptr_array_index(
- ctf_fs_trace->ds_file_groups, i);
-
- if (ds_file_group->sc == sc &&
- ds_file_group->stream_id ==
- stream_instance_id) {
- break;
- }
-
- ds_file_group = NULL;
- }
-
- if (!ds_file_group) {
- ds_file_group = ctf_fs_ds_file_group_create(ctf_fs_trace,
- sc, stream_instance_id, index);
- /* Ownership of index is transferred. */
- index = NULL;
- if (!ds_file_group) {
- goto error;
- }
-
- add_group = true;
- } else {
- merge_ctf_fs_ds_indexes(ds_file_group->index, index);
- }
-
- ds_file_group_insert_ds_file_info_sorted(ds_file_group,
- BT_MOVE_REF(ds_file_info));
-
- goto end;
-
-error:
- ctf_fs_ds_file_group_destroy(ds_file_group);
- ds_file_group = NULL;
- ret = -1;
-
-end:
- if (add_group && ds_file_group) {
- g_ptr_array_add(ctf_fs_trace->ds_file_groups, ds_file_group);
- }
-
- ctf_fs_ds_file_destroy(ds_file);
- ctf_fs_ds_file_info_destroy(ds_file_info);
-
- if (msg_iter) {
- ctf_msg_iter_destroy(msg_iter);
- }
-
- ctf_fs_ds_index_destroy(index);
- return ret;
-}
-
-static
-int create_ds_file_groups(struct ctf_fs_trace *ctf_fs_trace)
-{
- int ret = 0;
- const char *basename;
- GError *error = NULL;
- GDir *dir = NULL;
- bt_logging_level log_level = ctf_fs_trace->log_level;
- bt_self_component *self_comp = ctf_fs_trace->self_comp;
- bt_self_component_class *self_comp_class = ctf_fs_trace->self_comp_class;
-
- /* Check each file in the path directory, except specific ones */
- dir = g_dir_open(ctf_fs_trace->path->str, 0, &error);
- if (!dir) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Cannot open directory `%s`: %s (code %d)",
- ctf_fs_trace->path->str, error->message,
- error->code);
- goto error;
- }
-
- while ((basename = g_dir_read_name(dir))) {
- struct ctf_fs_file *file;
-
- if (strcmp(basename, CTF_FS_METADATA_FILENAME) == 0) {
- /* Ignore the metadata stream. */
- BT_COMP_LOGI("Ignoring metadata file `%s" G_DIR_SEPARATOR_S "%s`",
- ctf_fs_trace->path->str, basename);
- continue;
- }
-
- if (basename[0] == '.') {
- BT_COMP_LOGI("Ignoring hidden file `%s" G_DIR_SEPARATOR_S "%s`",
- ctf_fs_trace->path->str, basename);
- continue;
- }
-
- /* Create the file. */
- file = ctf_fs_file_create(log_level, self_comp);
- if (!file) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Cannot create stream file object for file `%s" G_DIR_SEPARATOR_S "%s`",
- ctf_fs_trace->path->str, basename);
- goto error;
- }
-
- /* Create full path string. */
- g_string_append_printf(file->path, "%s" G_DIR_SEPARATOR_S "%s",
- ctf_fs_trace->path->str, basename);
- if (!g_file_test(file->path->str, G_FILE_TEST_IS_REGULAR)) {
- BT_COMP_LOGI("Ignoring non-regular file `%s`",
- file->path->str);
- ctf_fs_file_destroy(file);
- file = NULL;
- continue;
- }
-
- ret = ctf_fs_file_open(file, "rb");
- if (ret) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Cannot open stream file `%s`",
- file->path->str);
- goto error;
- }
-
- if (file->size == 0) {
- /* Skip empty stream. */
- BT_COMP_LOGI("Ignoring empty file `%s`", file->path->str);
- ctf_fs_file_destroy(file);
- continue;
- }
-
- ret = add_ds_file_to_ds_file_group(ctf_fs_trace,
- file->path->str);
- if (ret) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Cannot add stream file `%s` to stream file group",
- file->path->str);
- ctf_fs_file_destroy(file);
- goto error;
- }
-
- ctf_fs_file_destroy(file);
- }
-
- goto end;
-
-error:
- ret = -1;
-
-end:
- if (dir) {
- g_dir_close(dir);
- dir = NULL;
- }
-
- if (error) {
- g_error_free(error);
- }
-
- return ret;
-}
-
-static
-int set_trace_name(bt_trace *trace, const char *name_suffix,
- bt_logging_level log_level, bt_self_component *self_comp)
-{
- int ret = 0;
- const bt_value *val;
- GString *name;
-
- name = g_string_new(NULL);
- if (!name) {
- BT_COMP_LOGE_STR("Failed to allocate a GString.");
- ret = -1;
- goto end;
- }
-
- /*
- * Check if we have a trace environment string value named `hostname`.
- * If so, use it as the trace name's prefix.
- */
- val = bt_trace_borrow_environment_entry_value_by_name_const(
- trace, "hostname");
- if (val && bt_value_is_string(val)) {
- g_string_append(name, bt_value_string_get(val));
-
- if (name_suffix) {
- g_string_append_c(name, G_DIR_SEPARATOR);
- }
- }
-
- if (name_suffix) {
- g_string_append(name, name_suffix);
- }
-
- ret = bt_trace_set_name(trace, name->str);
- if (ret) {
- goto end;
- }
-
- goto end;
-
-end:
- if (name) {
- g_string_free(name, TRUE);
- }
-
- return ret;
-}
-
-static
-struct ctf_fs_trace *ctf_fs_trace_create(
- bt_self_component *self_comp,
- bt_self_component_class *self_comp_class,
- const char *path, const char *name,
- struct ctf_fs_metadata_config *metadata_config,
- bt_logging_level log_level)
-{
- struct ctf_fs_trace *ctf_fs_trace;
- int ret;
-
- /* Only one of them must be set. */
- BT_ASSERT(!self_comp != !self_comp_class);
-
- ctf_fs_trace = g_new0(struct ctf_fs_trace, 1);
- if (!ctf_fs_trace) {
- goto end;
- }
-
- ctf_fs_trace->log_level = log_level;
- ctf_fs_trace->self_comp = self_comp;
- ctf_fs_trace->self_comp_class = self_comp_class;
- ctf_fs_trace->path = g_string_new(path);
- if (!ctf_fs_trace->path) {
- goto error;
- }
-
- ctf_fs_trace->metadata = g_new0(struct ctf_fs_metadata, 1);
- if (!ctf_fs_trace->metadata) {
- goto error;
- }
-
- ctf_fs_metadata_init(ctf_fs_trace->metadata);
- ctf_fs_trace->ds_file_groups = g_ptr_array_new_with_free_func(
- (GDestroyNotify) ctf_fs_ds_file_group_destroy);
- if (!ctf_fs_trace->ds_file_groups) {
- goto error;
- }
-
- ret = ctf_fs_metadata_set_trace_class(self_comp, ctf_fs_trace,
- metadata_config);
- if (ret) {
- goto error;
- }
-
- if (ctf_fs_trace->metadata->trace_class) {
- ctf_fs_trace->trace =
- bt_trace_create(ctf_fs_trace->metadata->trace_class);
- if (!ctf_fs_trace->trace) {
- goto error;
- }
- }
-
- if (ctf_fs_trace->trace) {
- ret = ctf_trace_class_configure_ir_trace(
- ctf_fs_trace->metadata->tc, ctf_fs_trace->trace);
- if (ret) {
- goto error;
- }
-
- ret = set_trace_name(ctf_fs_trace->trace, name, log_level,
- self_comp);
- if (ret) {
- goto error;
- }
- }
-
- ret = create_ds_file_groups(ctf_fs_trace);
- if (ret) {
- goto error;
- }
-
- goto end;
-
-error:
- ctf_fs_trace_destroy(ctf_fs_trace);
- ctf_fs_trace = NULL;
-
-end:
- return ctf_fs_trace;
-}
-
-static
-int path_is_ctf_trace(const char *path)
-{
- GString *metadata_path = g_string_new(NULL);
- int ret = 0;
-
- if (!metadata_path) {
- ret = -1;
- goto end;
- }
-
- g_string_printf(metadata_path, "%s" G_DIR_SEPARATOR_S "%s", path, CTF_FS_METADATA_FILENAME);
-
- if (g_file_test(metadata_path->str, G_FILE_TEST_IS_REGULAR)) {
- ret = 1;
- goto end;
- }
-
-end:
- g_string_free(metadata_path, TRUE);
- return ret;
-}
-
-/* Helper for ctf_fs_component_create_ctf_fs_trace, to handle a single path. */
-
-static
-int ctf_fs_component_create_ctf_fs_trace_one_path(
- struct ctf_fs_component *ctf_fs,
- const char *path_param,
- const char *trace_name,
- GPtrArray *traces,
- bt_self_component *self_comp,
- bt_self_component_class *self_comp_class)
-{
- struct ctf_fs_trace *ctf_fs_trace;
- int ret;
- GString *norm_path;
- bt_logging_level log_level = ctf_fs->log_level;
-
- norm_path = bt_common_normalize_path(path_param, NULL);
- if (!norm_path) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Failed to normalize path: `%s`.",
- path_param);
- goto error;
- }
-
- ret = path_is_ctf_trace(norm_path->str);
- if (ret < 0) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Failed to check if path is a CTF trace: path=%s",
- norm_path->str);
- goto error;
- } else if (ret == 0) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Path is not a CTF trace (does not contain a metadata file): `%s`.",
- norm_path->str);
- goto error;
- }
-
- // FIXME: Remove or ifdef for __MINGW32__
- if (strcmp(norm_path->str, "/") == 0) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Opening a trace in `/` is not supported.");
- ret = -1;
- goto end;
- }
-
- ctf_fs_trace = ctf_fs_trace_create(self_comp, self_comp_class, norm_path->str,
- trace_name, &ctf_fs->metadata_config, log_level);
- if (!ctf_fs_trace) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Cannot create trace for `%s`.",
- norm_path->str);
- goto error;
- }
-
- g_ptr_array_add(traces, ctf_fs_trace);
- ctf_fs_trace = NULL;
-
- ret = 0;
- goto end;
-
-error:
- ret = -1;
-
-end:
- if (norm_path) {
- g_string_free(norm_path, TRUE);
- }
-
- return ret;
-}
-
-/*
- * Count the number of stream and event classes defined by this trace's metadata.
- *
- * This is used to determine which metadata is the "latest", out of multiple
- * traces sharing the same UUID. It is assumed that amongst all these metadatas,
- * a bigger metadata is a superset of a smaller metadata. Therefore, it is
- * enough to just count the classes.
- */
-
-static
-unsigned int metadata_count_stream_and_event_classes(struct ctf_fs_trace *trace)
-{
- unsigned int num = trace->metadata->tc->stream_classes->len;
- guint i;
-
- for (i = 0; i < trace->metadata->tc->stream_classes->len; i++) {
- struct ctf_stream_class *sc = trace->metadata->tc->stream_classes->pdata[i];
- num += sc->event_classes->len;
- }
-
- return num;
-}
-
-/*
- * Merge the src ds_file_group into dest. This consists of merging their
- * ds_file_infos, making sure to keep the result sorted.
- */
-
-static
-void merge_ctf_fs_ds_file_groups(struct ctf_fs_ds_file_group *dest, struct ctf_fs_ds_file_group *src)
-{
- guint i;
-
- for (i = 0; i < src->ds_file_infos->len; i++) {
- struct ctf_fs_ds_file_info *ds_file_info =
- g_ptr_array_index(src->ds_file_infos, i);
-
- /* Ownership of the ds_file_info is transferred to dest. */
- g_ptr_array_index(src->ds_file_infos, i) = NULL;
-
- ds_file_group_insert_ds_file_info_sorted(dest, ds_file_info);
- }
-
- /* Merge both indexes. */
- merge_ctf_fs_ds_indexes(dest->index, src->index);
-}
-/* Merge src_trace's data stream file groups into dest_trace's. */
-
-static
-int merge_matching_ctf_fs_ds_file_groups(
- struct ctf_fs_trace *dest_trace,
- struct ctf_fs_trace *src_trace)
-{
-
- GPtrArray *dest = dest_trace->ds_file_groups;
- GPtrArray *src = src_trace->ds_file_groups;
- guint s_i;
- int ret = 0;
-
- /*
- * Save the initial length of dest: we only want to check against the
- * original elements in the inner loop.
- */
- const guint dest_len = dest->len;
-
- for (s_i = 0; s_i < src->len; s_i++) {
- struct ctf_fs_ds_file_group *src_group = g_ptr_array_index(src, s_i);
- struct ctf_fs_ds_file_group *dest_group = NULL;
-
- /* A stream instance without ID can't match a stream in the other trace. */
- if (src_group->stream_id != -1) {
- guint d_i;
-
- /* Let's search for a matching ds_file_group in the destination. */
- for (d_i = 0; d_i < dest_len; d_i++) {
- struct ctf_fs_ds_file_group *candidate_dest = g_ptr_array_index(dest, d_i);
-
- /* Can't match a stream instance without ID. */
- if (candidate_dest->stream_id == -1) {
- continue;
- }
-
- /*
- * If the two groups have the same stream instance id
- * and belong to the same stream class (stream instance
- * ids are per-stream class), they represent the same
- * stream instance.
- */
- if (candidate_dest->stream_id != src_group->stream_id ||
- candidate_dest->sc->id != src_group->sc->id) {
- continue;
- }
-
- dest_group = candidate_dest;
- break;
- }
- }
-
- /*
- * Didn't find a friend in dest to merge our src_group into?
- * Create a new empty one. This can happen if a stream was
- * active in the source trace chunk but not in the destination
- * trace chunk.
- */
- if (!dest_group) {
- struct ctf_stream_class *sc;
- struct ctf_fs_ds_index *index;
-
- sc = ctf_trace_class_borrow_stream_class_by_id(
- dest_trace->metadata->tc, src_group->sc->id);
- BT_ASSERT(sc);
-
- index = ctf_fs_ds_index_create(dest_trace->log_level,
- dest_trace->self_comp);
- if (!index) {
- ret = -1;
- goto end;
- }
-
- dest_group = ctf_fs_ds_file_group_create(dest_trace, sc,
- src_group->stream_id, index);
- /* Ownership of index is transferred. */
- index = NULL;
- if (!dest_group) {
- ret = -1;
- goto end;
- }
-
- g_ptr_array_add(dest_trace->ds_file_groups, dest_group);
- }
-
- BT_ASSERT(dest_group);
- merge_ctf_fs_ds_file_groups(dest_group, src_group);
- }
-
-end:
- return ret;
-}
-
-/*
- * Collapse the given traces, which must all share the same UUID, in a single
- * one.
- *
- * The trace with the most expansive metadata is chosen and all other traces
- * are merged into that one. The array slots of all the traces that get merged
- * in the chosen one are set to NULL, so only the slot of the chosen trace
- * remains non-NULL.
- */
-
-static
-int merge_ctf_fs_traces(struct ctf_fs_trace **traces, unsigned int num_traces,
- struct ctf_fs_trace **out_trace)
-{
- unsigned int winner_count;
- struct ctf_fs_trace *winner;
- guint i, winner_i;
- int ret = 0;
-
- BT_ASSERT(num_traces >= 2);
-
- winner_count = metadata_count_stream_and_event_classes(traces[0]);
- winner = traces[0];
- winner_i = 0;
-
- /* Find the trace with the largest metadata. */
- for (i = 1; i < num_traces; i++) {
- struct ctf_fs_trace *candidate;
- unsigned int candidate_count;
-
- candidate = traces[i];
-
- /* A bit of sanity check. */
- BT_ASSERT(bt_uuid_compare(winner->metadata->tc->uuid, candidate->metadata->tc->uuid) == 0);
-
- candidate_count = metadata_count_stream_and_event_classes(candidate);
-
- if (candidate_count > winner_count) {
- winner_count = candidate_count;
- winner = candidate;
- winner_i = i;
- }
- }
-
- /* Merge all the other traces in the winning trace. */
- for (i = 0; i < num_traces; i++) {
- struct ctf_fs_trace *trace = traces[i];
-
- /* Don't merge the winner into itself. */
- if (trace == winner) {
- continue;
- }
-
- /* Merge trace's data stream file groups into winner's. */
- ret = merge_matching_ctf_fs_ds_file_groups(winner, trace);
- if (ret) {
- goto end;
- }
- }
-
- /*
- * Move the winner out of the array, into `*out_trace`.
- */
- *out_trace = winner;
- traces[winner_i] = NULL;
-
-end:
- return ret;
-}
-
-enum target_event {
- FIRST_EVENT,
- LAST_EVENT,
-};
-
-static
-int decode_clock_snapshot_after_event(struct ctf_fs_trace *ctf_fs_trace,
- struct ctf_clock_class *default_cc,
- struct ctf_fs_ds_index_entry *index_entry,
- enum target_event target_event, uint64_t *cs, int64_t *ts_ns)
-{
- enum ctf_msg_iter_status iter_status = CTF_MSG_ITER_STATUS_OK;
- struct ctf_fs_ds_file *ds_file = NULL;
- struct ctf_msg_iter *msg_iter = NULL;
- bt_logging_level log_level = ctf_fs_trace->log_level;
- bt_self_component *self_comp = ctf_fs_trace->self_comp;
- int ret = 0;
-
- BT_ASSERT(ctf_fs_trace);
- BT_ASSERT(index_entry);
- BT_ASSERT(index_entry->path);
-
- ds_file = ctf_fs_ds_file_create(ctf_fs_trace, NULL,
- NULL, index_entry->path, log_level);
- if (!ds_file) {
- BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Failed to create a ctf_fs_ds_file");
- ret = -1;
- goto end;
- }
-
- BT_ASSERT(ctf_fs_trace->metadata);
- BT_ASSERT(ctf_fs_trace->metadata->tc);
-
- msg_iter = ctf_msg_iter_create(ctf_fs_trace->metadata->tc,
- bt_common_get_page_size(log_level) * 8, ctf_fs_ds_file_medops,
- ds_file, log_level, self_comp, NULL);
- if (!msg_iter) {
- /* ctf_msg_iter_create() logs errors. */
- ret = -1;
- goto end;
- }
-
- /*
- * Turn on dry run mode to prevent the creation and usage of Babeltrace
- * library objects (bt_field, bt_message_*, etc.).
- */
- ctf_msg_iter_set_dry_run(msg_iter, true);
-
- /* Seek to the beginning of the target packet. */
- iter_status = ctf_msg_iter_seek(msg_iter, index_entry->offset);
- if (iter_status) {
- /* ctf_msg_iter_seek() logs errors. */
- ret = -1;
- goto end;
- }
-
- switch (target_event) {
- case FIRST_EVENT:
- /*
- * Start to decode the packet until we reach the end of
- * the first event. To extract the first event's clock
- * snapshot.
- */
- iter_status = ctf_msg_iter_curr_packet_first_event_clock_snapshot(
- msg_iter, cs);
- break;
- case LAST_EVENT:
- /* Decode the packet to extract the last event's clock snapshot. */
- iter_status = ctf_msg_iter_curr_packet_last_event_clock_snapshot(
- msg_iter, cs);
- break;
- default:
- bt_common_abort();
- }
- if (iter_status) {
- ret = -1;
- goto end;
- }
-
- /* Convert clock snapshot to timestamp. */
- ret = bt_util_clock_cycles_to_ns_from_origin(*cs,
- default_cc->frequency, default_cc->offset_seconds,
- default_cc->offset_cycles, ts_ns);
- if (ret) {
- BT_COMP_LOGE_APPEND_CAUSE(self_comp,
- "Failed to convert clock snapshot to timestamp");
- goto end;
- }
-
-end:
- if (ds_file) {
- ctf_fs_ds_file_destroy(ds_file);
- }
- if (msg_iter) {
- ctf_msg_iter_destroy(msg_iter);
- }
-
- return ret;
-}
-
-static
-int decode_packet_first_event_timestamp(struct ctf_fs_trace *ctf_fs_trace,
- struct ctf_clock_class *default_cc,
- struct ctf_fs_ds_index_entry *index_entry, uint64_t *cs, int64_t *ts_ns)
-{
- return decode_clock_snapshot_after_event(ctf_fs_trace, default_cc,
- index_entry, FIRST_EVENT, cs, ts_ns);
-}
-
-static
-int decode_packet_last_event_timestamp(struct ctf_fs_trace *ctf_fs_trace,
- struct ctf_clock_class *default_cc,
- struct ctf_fs_ds_index_entry *index_entry, uint64_t *cs, int64_t *ts_ns)
-{
- return decode_clock_snapshot_after_event(ctf_fs_trace, default_cc,
- index_entry, LAST_EVENT, cs, ts_ns);
-}
-
-/*
- * Fix up packet index entries for lttng's "event-after-packet" bug.
- * Some buggy lttng tracer versions may emit events with a timestamp that is
- * larger (after) than the timestamp_end of the their packets.
- *
- * To fix up this erroneous data we do the following:
- * 1. If it's not the stream file's last packet: set the packet index entry's
- * end time to the next packet's beginning time.
- * 2. If it's the stream file's last packet, set the packet index entry's end
- * time to the packet's last event's time, if any, or to the packet's
- * beginning time otherwise.
- *
- * Known buggy tracer versions:
- * - before lttng-ust 2.11.0
- * - before lttng-module 2.11.0
- * - before lttng-module 2.10.10
- * - before lttng-module 2.9.13
- */
-static
-int fix_index_lttng_event_after_packet_bug(struct ctf_fs_trace *trace)
-{
- int ret = 0;
- guint ds_file_group_i;
- GPtrArray *ds_file_groups = trace->ds_file_groups;
- bt_logging_level log_level = trace->log_level;
-
- for (ds_file_group_i = 0; ds_file_group_i < ds_file_groups->len;
- ds_file_group_i++) {
- guint entry_i;
- struct ctf_clock_class *default_cc;
- struct ctf_fs_ds_index_entry *last_entry;
- struct ctf_fs_ds_index *index;
-
- struct ctf_fs_ds_file_group *ds_file_group =
- g_ptr_array_index(ds_file_groups, ds_file_group_i);
-
- BT_ASSERT(ds_file_group);
- index = ds_file_group->index;
-
- BT_ASSERT(index);
- BT_ASSERT(index->entries);
- BT_ASSERT(index->entries->len > 0);
-
- /*
- * Iterate over all entries but the last one. The last one is
- * fixed differently after.
- */
- for (entry_i = 0; entry_i < index->entries->len - 1;
- entry_i++) {
- struct ctf_fs_ds_index_entry *curr_entry, *next_entry;
-
- curr_entry = g_ptr_array_index(index->entries, entry_i);
- next_entry = g_ptr_array_index(index->entries, entry_i + 1);
-
- /*
- * 1. Set the current index entry `end` timestamp to
- * the next index entry `begin` timestamp.
- */
- curr_entry->timestamp_end = next_entry->timestamp_begin;
- curr_entry->timestamp_end_ns = next_entry->timestamp_begin_ns;
- }
-
- /*
- * 2. Fix the last entry by decoding the last event of the last
- * packet.
- */
- last_entry = g_ptr_array_index(index->entries,
- index->entries->len - 1);
- BT_ASSERT(last_entry);
-
- BT_ASSERT(ds_file_group->sc->default_clock_class);
- default_cc = ds_file_group->sc->default_clock_class;
-
- /*
- * Decode packet to read the timestamp of the last event of the
- * entry.
- */
- ret = decode_packet_last_event_timestamp(trace, default_cc,
- last_entry, &last_entry->timestamp_end,
- &last_entry->timestamp_end_ns);
- if (ret) {
- BT_COMP_LOGE_APPEND_CAUSE(trace->self_comp,
- "Failed to decode stream's last packet to get its last event's clock snapshot.");
- goto end;
- }
- }
-
-end:
- return ret;
-}
-
-/*
- * Fix up packet index entries for barectf's "event-before-packet" bug.
- * Some buggy barectf tracer versions may emit events with a timestamp that is
- * less than the timestamp_begin of the their packets.
- *
- * To fix up this erroneous data we do the following:
- * 1. Starting at the second index entry, set the timestamp_begin of the
- * current entry to the timestamp of the first event of the packet.
- * 2. Set the previous entry's timestamp_end to the timestamp_begin of the
- * current packet.
- *
- * Known buggy tracer versions:
- * - before barectf 2.3.1
- */
-static
-int fix_index_barectf_event_before_packet_bug(struct ctf_fs_trace *trace)
-{
- int ret = 0;
- guint ds_file_group_i;
- GPtrArray *ds_file_groups = trace->ds_file_groups;
- bt_logging_level log_level = trace->log_level;
-
- for (ds_file_group_i = 0; ds_file_group_i < ds_file_groups->len;
- ds_file_group_i++) {
- guint entry_i;
- struct ctf_clock_class *default_cc;
- struct ctf_fs_ds_file_group *ds_file_group =
- g_ptr_array_index(ds_file_groups, ds_file_group_i);
-
- struct ctf_fs_ds_index *index = ds_file_group->index;
-
- BT_ASSERT(index);
- BT_ASSERT(index->entries);
- BT_ASSERT(index->entries->len > 0);
-
- BT_ASSERT(ds_file_group->sc->default_clock_class);
- default_cc = ds_file_group->sc->default_clock_class;
-
- /*
- * 1. Iterate over the index, starting from the second entry
- * (index = 1).
- */
- for (entry_i = 1; entry_i < index->entries->len;
- entry_i++) {
- struct ctf_fs_ds_index_entry *curr_entry, *prev_entry;
- prev_entry = g_ptr_array_index(index->entries, entry_i - 1);
- curr_entry = g_ptr_array_index(index->entries, entry_i);
- /*
- * 2. Set the current entry `begin` timestamp to the
- * timestamp of the first event of the current packet.
- */
- ret = decode_packet_first_event_timestamp(trace, default_cc,
- curr_entry, &curr_entry->timestamp_begin,
- &curr_entry->timestamp_begin_ns);
- if (ret) {
- BT_COMP_LOGE_APPEND_CAUSE(trace->self_comp,
- "Failed to decode first event's clock snapshot");
- goto end;
- }
-
- /*
- * 3. Set the previous entry `end` timestamp to the
- * timestamp of the first event of the current packet.
- */
- prev_entry->timestamp_end = curr_entry->timestamp_begin;
- prev_entry->timestamp_end_ns = curr_entry->timestamp_begin_ns;
- }
- }
-end:
- return ret;
-}
-
-/*
- * When using the lttng-crash feature it's likely that the last packets of each
- * stream have their timestamp_end set to zero. This is caused by the fact that
- * the tracer crashed and was not able to properly close the packets.
- *
- * To fix up this erroneous data we do the following:
- * For each index entry, if the entry's timestamp_end is 0 and the
- * timestamp_begin is not 0:
- * - If it's the stream file's last packet: set the packet index entry's end
- * time to the packet's last event's time, if any, or to the packet's
- * beginning time otherwise.
- * - If it's not the stream file's last packet: set the packet index
- * entry's end time to the next packet's beginning time.
- *
- * Affected versions:
- * - All current and future lttng-ust and lttng-modules versions.
- */
-static
-int fix_index_lttng_crash_quirk(struct ctf_fs_trace *trace)
-{
- int ret = 0;
- guint ds_file_group_idx;
- GPtrArray *ds_file_groups = trace->ds_file_groups;
- bt_logging_level log_level = trace->log_level;
-
- for (ds_file_group_idx = 0; ds_file_group_idx < ds_file_groups->len;
- ds_file_group_idx++) {
- guint entry_idx;
- struct ctf_clock_class *default_cc;
- struct ctf_fs_ds_index_entry *last_entry;
- struct ctf_fs_ds_index *index;
-
- struct ctf_fs_ds_file_group *ds_file_group =
- g_ptr_array_index(ds_file_groups, ds_file_group_idx);
-
- BT_ASSERT(ds_file_group);
- index = ds_file_group->index;
-
- BT_ASSERT(ds_file_group->sc->default_clock_class);
- default_cc = ds_file_group->sc->default_clock_class;
-
- BT_ASSERT(index);
- BT_ASSERT(index->entries);
- BT_ASSERT(index->entries->len > 0);
-
- last_entry = g_ptr_array_index(index->entries,
- index->entries->len - 1);
- BT_ASSERT(last_entry);
-
-
- /* 1. Fix the last entry first. */
- if (last_entry->timestamp_end == 0 &&
- last_entry->timestamp_begin != 0) {
- /*
- * Decode packet to read the timestamp of the
- * last event of the stream file.
- */
- ret = decode_packet_last_event_timestamp(trace,
- default_cc, last_entry,
- &last_entry->timestamp_end,
- &last_entry->timestamp_end_ns);
- if (ret) {
- BT_COMP_LOGE_APPEND_CAUSE(trace->self_comp,
- "Failed to decode last event's clock snapshot");
- goto end;
- }
- }
-
- /* Iterate over all entries but the last one. */
- for (entry_idx = 0; entry_idx < index->entries->len - 1;
- entry_idx++) {
- struct ctf_fs_ds_index_entry *curr_entry, *next_entry;
- curr_entry = g_ptr_array_index(index->entries, entry_idx);
- next_entry = g_ptr_array_index(index->entries, entry_idx + 1);
-
- if (curr_entry->timestamp_end == 0 &&
- curr_entry->timestamp_begin != 0) {
- /*
- * 2. Set the current index entry `end` timestamp to
- * the next index entry `begin` timestamp.
- */
- curr_entry->timestamp_end = next_entry->timestamp_begin;
- curr_entry->timestamp_end_ns = next_entry->timestamp_begin_ns;
- }
- }
- }
-
-end:
- return ret;
-}
-
-/*
- * Extract the tracer information necessary to compare versions.
- * Returns 0 on success, and -1 if the extraction is not successful because the
- * necessary fields are absents in the trace metadata.
- */
-static
-int extract_tracer_info(struct ctf_fs_trace *trace,
- struct tracer_info *current_tracer_info)
-{
- int ret = 0;
- struct ctf_trace_class_env_entry *entry;
-
- /* Clear the current_tracer_info struct */
- memset(current_tracer_info, 0, sizeof(*current_tracer_info));
-
- /*
- * To compare 2 tracer versions, at least the tracer name and it's
- * major version are needed. If one of these is missing, consider it an
- * extraction failure.
- */
- entry = ctf_trace_class_borrow_env_entry_by_name(
- trace->metadata->tc, "tracer_name");
- if (!entry || entry->type != CTF_TRACE_CLASS_ENV_ENTRY_TYPE_STR) {
- goto missing_bare_minimum;
- }
-
- /* Set tracer name. */
- current_tracer_info->name = entry->value.str->str;
-
- entry = ctf_trace_class_borrow_env_entry_by_name(
- trace->metadata->tc, "tracer_major");
- if (!entry || entry->type != CTF_TRACE_CLASS_ENV_ENTRY_TYPE_INT) {
- goto missing_bare_minimum;
- }
-
- /* Set major version number. */
- current_tracer_info->major = entry->value.i;
-
- entry = ctf_trace_class_borrow_env_entry_by_name(
- trace->metadata->tc, "tracer_minor");
- if (!entry || entry->type != CTF_TRACE_CLASS_ENV_ENTRY_TYPE_INT) {
- goto end;
- }
-
- /* Set minor version number. */
- current_tracer_info->minor = entry->value.i;
-
- entry = ctf_trace_class_borrow_env_entry_by_name(
- trace->metadata->tc, "tracer_patch");
- if (!entry) {
- /*
- * If `tracer_patch` doesn't exist `tracer_patchlevel` might.
- * For example, `lttng-modules` uses entry name
- * `tracer_patchlevel`.
- */
- entry = ctf_trace_class_borrow_env_entry_by_name(
- trace->metadata->tc, "tracer_patchlevel");
- }
-
- if (!entry || entry->type != CTF_TRACE_CLASS_ENV_ENTRY_TYPE_INT) {
- goto end;
- }
-
- /* Set patch version number. */
- current_tracer_info->patch = entry->value.i;
-
- goto end;
-
-missing_bare_minimum:
- ret = -1;
-end:
- return ret;
-}
-
-static
-bool is_tracer_affected_by_lttng_event_after_packet_bug(
- struct tracer_info *curr_tracer_info)
-{
- bool is_affected = false;
-
- if (strcmp(curr_tracer_info->name, "lttng-ust") == 0) {
- if (curr_tracer_info->major < 2) {
- is_affected = true;
- } else if (curr_tracer_info->major == 2) {
- /* fixed in lttng-ust 2.11.0 */
- if (curr_tracer_info->minor < 11) {
- is_affected = true;
- }
- }
- } else if (strcmp(curr_tracer_info->name, "lttng-modules") == 0) {
- if (curr_tracer_info->major < 2) {
- is_affected = true;
- } else if (curr_tracer_info->major == 2) {
- /* fixed in lttng-modules 2.11.0 */
- if (curr_tracer_info->minor == 10) {
- /* fixed in lttng-modules 2.10.10 */
- if (curr_tracer_info->patch < 10) {
- is_affected = true;
- }
- } else if (curr_tracer_info->minor == 9) {
- /* fixed in lttng-modules 2.9.13 */
- if (curr_tracer_info->patch < 13) {
- is_affected = true;
- }
- } else if (curr_tracer_info->minor < 9) {
- is_affected = true;
- }
- }
- }
-
- return is_affected;
-}
-
-static
-bool is_tracer_affected_by_barectf_event_before_packet_bug(
- struct tracer_info *curr_tracer_info)
-{
- bool is_affected = false;
-
- if (strcmp(curr_tracer_info->name, "barectf") == 0) {
- if (curr_tracer_info->major < 2) {
- is_affected = true;
- } else if (curr_tracer_info->major == 2) {
- if (curr_tracer_info->minor < 3) {
- is_affected = true;
- } else if (curr_tracer_info->minor == 3) {
- /* fixed in barectf 2.3.1 */
- if (curr_tracer_info->patch < 1) {
- is_affected = true;
- }
- }
- }
- }
-
- return is_affected;
-}
-
-static
-bool is_tracer_affected_by_lttng_crash_quirk(
- struct tracer_info *curr_tracer_info)
-{
- bool is_affected = false;
-
- /* All LTTng tracer may be affected by this lttng crash quirk. */
- if (strcmp(curr_tracer_info->name, "lttng-ust") == 0) {
- is_affected = true;
- } else if (strcmp(curr_tracer_info->name, "lttng-modules") == 0) {
- is_affected = true;
- }
-
- return is_affected;
-}
-
-/*
- * Looks for trace produced by known buggy tracers and fix up the index
- * produced earlier.
- */
-static
-int fix_packet_index_tracer_bugs(struct ctf_fs_component *ctf_fs,
- bt_self_component *self_comp,
- bt_self_component_class *self_comp_class)
-{
- int ret = 0;
- struct tracer_info current_tracer_info;
- bt_logging_level log_level = ctf_fs->log_level;
-
- ret = extract_tracer_info(ctf_fs->trace, ¤t_tracer_info);
- if (ret) {
- /*
- * A trace may not have all the necessary environment
- * entries to do the tracer version comparison.
- * At least, the tracer name and major version number
- * are needed. Failing to extract these entries is not
- * an error.
- */
- ret = 0;
- BT_LOGI_STR("Cannot extract tracer information necessary to compare with buggy versions.");
- goto end;;
- }
-
- /* Check if the trace may be affected by old tracer bugs. */
- if (is_tracer_affected_by_lttng_event_after_packet_bug(
- ¤t_tracer_info)) {
- BT_LOGI_STR("Trace may be affected by LTTng tracer packet timestamp bug. Fixing up.");
- ret = fix_index_lttng_event_after_packet_bug(ctf_fs->trace);
- if (ret) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(
- self_comp, self_comp_class,
- "Failed to fix LTTng event-after-packet bug.");
- goto end;
- }
- ctf_fs->trace->metadata->tc->quirks.lttng_event_after_packet = true;
- }
-
- if (is_tracer_affected_by_barectf_event_before_packet_bug(
- ¤t_tracer_info)) {
- BT_LOGI_STR("Trace may be affected by barectf tracer packet timestamp bug. Fixing up.");
- ret = fix_index_barectf_event_before_packet_bug(ctf_fs->trace);
- if (ret) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(
- self_comp, self_comp_class,
- "Failed to fix barectf event-before-packet bug.");
- goto end;
- }
- ctf_fs->trace->metadata->tc->quirks.barectf_event_before_packet = true;
- }
-
- if (is_tracer_affected_by_lttng_crash_quirk(
- ¤t_tracer_info)) {
- ret = fix_index_lttng_crash_quirk(ctf_fs->trace);
- if (ret) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(
- self_comp, self_comp_class,
- "Failed to fix lttng-crash timestamp quirks.");
- goto end;
- }
- ctf_fs->trace->metadata->tc->quirks.lttng_crash = true;
- }
-
-end:
- return ret;
-}
-
-static
-gint compare_ds_file_groups_by_first_path(gconstpointer a, gconstpointer b)
-{
- struct ctf_fs_ds_file_group * const *ds_file_group_a = a;
- struct ctf_fs_ds_file_group * const *ds_file_group_b = b;
- const struct ctf_fs_ds_file_info *first_ds_file_info_a;
- const struct ctf_fs_ds_file_info *first_ds_file_info_b;
-
- BT_ASSERT((*ds_file_group_a)->ds_file_infos->len > 0);
- BT_ASSERT((*ds_file_group_b)->ds_file_infos->len > 0);
- first_ds_file_info_a = (*ds_file_group_a)->ds_file_infos->pdata[0];
- first_ds_file_info_b = (*ds_file_group_b)->ds_file_infos->pdata[0];
- return strcmp(first_ds_file_info_a->path->str,
- first_ds_file_info_b->path->str);
-}
-
-static
-gint compare_strings(gconstpointer p_a, gconstpointer p_b)
-{
- const char *a = *((const char **) p_a);
- const char *b = *((const char **) p_b);
-
- return strcmp(a, b);
-}
-
-int ctf_fs_component_create_ctf_fs_trace(
- struct ctf_fs_component *ctf_fs,
- const bt_value *paths_value,
- const bt_value *trace_name_value,
- bt_self_component *self_comp,
- bt_self_component_class *self_comp_class)
-{
- int ret = 0;
- uint64_t i;
- bt_logging_level log_level = ctf_fs->log_level;
- GPtrArray *paths = NULL;
- GPtrArray *traces;
- const char *trace_name;
-
- BT_ASSERT(bt_value_get_type(paths_value) == BT_VALUE_TYPE_ARRAY);
- BT_ASSERT(!bt_value_array_is_empty(paths_value));
-
- traces = g_ptr_array_new_with_free_func(ctf_fs_trace_destroy_notifier);
- if (!traces) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Failed to allocate a GPtrArray.");
- goto error;
- }
-
- paths = g_ptr_array_new_with_free_func(g_free);
- if (!paths) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Failed to allocate a GPtrArray.");
- goto error;
- }
-
- trace_name = trace_name_value ? bt_value_string_get(trace_name_value) : NULL;
-
- /*
- * Create a sorted array of the paths, to make the execution of this
- * component deterministic.
- */
- for (i = 0; i < bt_value_array_get_length(paths_value); i++) {
- const bt_value *path_value =
- bt_value_array_borrow_element_by_index_const(paths_value, i);
- const char *input = bt_value_string_get(path_value);
- gchar *input_copy;
-
- input_copy = g_strdup(input);
- if (!input_copy) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Failed to copy a string.");
- goto error;
- }
-
- g_ptr_array_add(paths, input_copy);
- }
-
- g_ptr_array_sort(paths, compare_strings);
-
- /* Create a separate ctf_fs_trace object for each path. */
- for (i = 0; i < paths->len; i++) {
- const char *path = g_ptr_array_index(paths, i);
-
- ret = ctf_fs_component_create_ctf_fs_trace_one_path(ctf_fs,
- path, trace_name, traces, self_comp, self_comp_class);
- if (ret) {
- goto end;
- }
- }
-
- if (traces->len > 1) {
- struct ctf_fs_trace *first_trace = (struct ctf_fs_trace *) traces->pdata[0];
- const uint8_t *first_trace_uuid = first_trace->metadata->tc->uuid;
- struct ctf_fs_trace *trace;
-
- /*
- * We have more than one trace, they must all share the same
- * UUID, verify that.
- */
- for (i = 0; i < traces->len; i++) {
- struct ctf_fs_trace *this_trace =
- (struct ctf_fs_trace *) traces->pdata[i];
- const uint8_t *this_trace_uuid = this_trace->metadata->tc->uuid;
-
- if (!this_trace->metadata->tc->is_uuid_set) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Multiple traces given, but a trace does not have a UUID: path=%s",
- this_trace->path->str);
- goto error;
- }
-
- if (bt_uuid_compare(first_trace_uuid, this_trace_uuid) != 0) {
- char first_trace_uuid_str[BT_UUID_STR_LEN + 1];
- char this_trace_uuid_str[BT_UUID_STR_LEN + 1];
-
- bt_uuid_to_str(first_trace_uuid, first_trace_uuid_str);
- bt_uuid_to_str(this_trace_uuid, this_trace_uuid_str);
-
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Multiple traces given, but UUIDs don't match: "
- "first-trace-uuid=%s, first-trace-path=%s, "
- "trace-uuid=%s, trace-path=%s",
- first_trace_uuid_str, first_trace->path->str,
- this_trace_uuid_str, this_trace->path->str);
- goto error;
- }
- }
-
- ret = merge_ctf_fs_traces((struct ctf_fs_trace **) traces->pdata,
- traces->len, &trace);
- if (ret) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Failed to merge traces with the same UUID.");
- goto error;
- }
-
- ctf_fs->trace = trace;
- } else {
- /* Just one trace, it may or may not have a UUID, both are fine. */
- ctf_fs->trace = traces->pdata[0];
- traces->pdata[0] = NULL;
- }
-
- ret = fix_packet_index_tracer_bugs(ctf_fs, self_comp, self_comp_class);
- if (ret) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "Failed to fix packet index tracer bugs.");
- }
-
- /*
- * Sort data stream file groups by first data stream file info
- * path to get a deterministic order. This order influences the
- * order of the output ports. It also influences the order of
- * the automatic stream IDs if the trace's packet headers do not
- * contain a `stream_instance_id` field, in which case the data
- * stream file to stream ID association is always the same,
- * whatever the build and the system.
- *
- * Having a deterministic order here can help debugging and
- * testing.
- */
- g_ptr_array_sort(ctf_fs->trace->ds_file_groups,
- compare_ds_file_groups_by_first_path);
- goto end;
-error:
- ret = -1;
-
-end:
- if (traces) {
- g_ptr_array_free(traces, TRUE);
- }
-
- if (paths) {
- g_ptr_array_free(paths, TRUE);
- }
-
- return ret;
-}
-
-static
-GString *get_stream_instance_unique_name(
- struct ctf_fs_ds_file_group *ds_file_group)
-{
- GString *name;
- struct ctf_fs_ds_file_info *ds_file_info;
-
- name = g_string_new(NULL);
- if (!name) {
- goto end;
- }
-
- /*
- * If there's more than one stream file in the stream file
- * group, the first (earliest) stream file's path is used as
- * the stream's unique name.
- */
- BT_ASSERT(ds_file_group->ds_file_infos->len > 0);
- ds_file_info = g_ptr_array_index(ds_file_group->ds_file_infos, 0);
- g_string_assign(name, ds_file_info->path->str);
-
-end:
- return name;
-}
-
-/* Create the IR stream objects for ctf_fs_trace. */
-
-static
-int create_streams_for_trace(struct ctf_fs_trace *ctf_fs_trace)
-{
- int ret;
- GString *name = NULL;
- guint i;
- bt_logging_level log_level = ctf_fs_trace->log_level;
- bt_self_component *self_comp = ctf_fs_trace->self_comp;
-
- for (i = 0; i < ctf_fs_trace->ds_file_groups->len; i++) {
- struct ctf_fs_ds_file_group *ds_file_group =
- g_ptr_array_index(ctf_fs_trace->ds_file_groups, i);
- name = get_stream_instance_unique_name(ds_file_group);
-
- if (!name) {
- goto error;
- }
-
- if (ds_file_group->sc->ir_sc) {
- BT_ASSERT(ctf_fs_trace->trace);
-
- if (ds_file_group->stream_id == UINT64_C(-1)) {
- /* No stream ID: use 0 */
- ds_file_group->stream = bt_stream_create_with_id(
- ds_file_group->sc->ir_sc,
- ctf_fs_trace->trace,
- ctf_fs_trace->next_stream_id);
- ctf_fs_trace->next_stream_id++;
- } else {
- /* Specific stream ID */
- ds_file_group->stream = bt_stream_create_with_id(
- ds_file_group->sc->ir_sc,
- ctf_fs_trace->trace,
- (uint64_t) ds_file_group->stream_id);
- }
- } else {
- ds_file_group->stream = NULL;
- }
-
- if (!ds_file_group->stream) {
- BT_COMP_LOGE_APPEND_CAUSE(self_comp,
- "Cannot create stream for DS file group: "
- "addr=%p, stream-name=\"%s\"",
- ds_file_group, name->str);
- goto error;
- }
-
- ret = bt_stream_set_name(ds_file_group->stream,
- name->str);
- if (ret) {
- BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Cannot set stream's name: "
- "addr=%p, stream-name=\"%s\"",
- ds_file_group->stream, name->str);
- goto error;
- }
-
- g_string_free(name, TRUE);
- name = NULL;
- }
-
- ret = 0;
- goto end;
-
-error:
- ret = -1;
-
-end:
-
- if (name) {
- g_string_free(name, TRUE);
- }
- return ret;
-}
-
-static const struct bt_param_validation_value_descr inputs_elem_descr = {
- .type = BT_VALUE_TYPE_STRING,
-};
-
-static const struct bt_param_validation_map_value_entry_descr fs_params_entries_descr[] = {
- { "inputs", BT_PARAM_VALIDATION_MAP_VALUE_ENTRY_MANDATORY, {
- BT_VALUE_TYPE_ARRAY,
- .array = {
- .min_length = 1,
- .max_length = BT_PARAM_VALIDATION_INFINITE,
- .element_type = &inputs_elem_descr,
- }
- }},
- { "trace-name", BT_PARAM_VALIDATION_MAP_VALUE_ENTRY_OPTIONAL, { .type = BT_VALUE_TYPE_STRING } },
- { "clock-class-offset-s", BT_PARAM_VALIDATION_MAP_VALUE_ENTRY_OPTIONAL, { .type = BT_VALUE_TYPE_SIGNED_INTEGER } },
- { "clock-class-offset-ns", BT_PARAM_VALIDATION_MAP_VALUE_ENTRY_OPTIONAL, { .type = BT_VALUE_TYPE_SIGNED_INTEGER } },
- { "force-clock-class-origin-unix-epoch", BT_PARAM_VALIDATION_MAP_VALUE_ENTRY_OPTIONAL, { .type = BT_VALUE_TYPE_BOOL } },
- BT_PARAM_VALIDATION_MAP_VALUE_ENTRY_END
-};
-
-
-bool read_src_fs_parameters(const bt_value *params,
- const bt_value **inputs,
- const bt_value **trace_name,
- struct ctf_fs_component *ctf_fs,
- bt_self_component *self_comp,
- bt_self_component_class *self_comp_class) {
- bool ret;
- const bt_value *value;
- bt_logging_level log_level = ctf_fs->log_level;
- enum bt_param_validation_status validate_value_status;
- gchar *error = NULL;
-
- validate_value_status = bt_param_validation_validate(params,
- fs_params_entries_descr, &error);
- if (validate_value_status != BT_PARAM_VALIDATION_STATUS_OK) {
- BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp, self_comp_class,
- "%s", error);
- ret = false;
- goto end;
- }
-
- /* inputs parameter */
- *inputs = bt_value_map_borrow_entry_value_const(params, "inputs");
-
- /* clock-class-offset-s parameter */
- value = bt_value_map_borrow_entry_value_const(params,
- "clock-class-offset-s");
- if (value) {
- ctf_fs->metadata_config.clock_class_offset_s =
- bt_value_integer_signed_get(value);
- }
-
- /* clock-class-offset-ns parameter */
- value = bt_value_map_borrow_entry_value_const(params,
- "clock-class-offset-ns");
- if (value) {
- ctf_fs->metadata_config.clock_class_offset_ns =
- bt_value_integer_signed_get(value);
- }
-
- /* force-clock-class-origin-unix-epoch parameter */
- value = bt_value_map_borrow_entry_value_const(params,
- "force-clock-class-origin-unix-epoch");
- if (value) {
- ctf_fs->metadata_config.force_clock_class_origin_unix_epoch =
- bt_value_bool_get(value);
- }
-
- /* trace-name parameter */
- *trace_name = bt_value_map_borrow_entry_value_const(params, "trace-name");
-
- ret = true;
-
-end:
- g_free(error);
- return ret;
-}
-
-static
-struct ctf_fs_component *ctf_fs_create(
- const bt_value *params,
- bt_self_component_source *self_comp_src)
-{
- struct ctf_fs_component *ctf_fs = NULL;
- const bt_value *inputs_value;
- const bt_value *trace_name_value;
- bt_self_component *self_comp =
- bt_self_component_source_as_self_component(self_comp_src);
-
- ctf_fs = ctf_fs_component_create(bt_component_get_logging_level(
- bt_self_component_as_component(self_comp)), self_comp);
- if (!ctf_fs) {
- goto error;
- }
-
- if (!read_src_fs_parameters(params, &inputs_value, &trace_name_value,
- ctf_fs, self_comp, NULL)) {
- goto error;
- }
-
- bt_self_component_set_data(self_comp, ctf_fs);
-
- if (ctf_fs_component_create_ctf_fs_trace(ctf_fs, inputs_value,
- trace_name_value, self_comp, NULL)) {
- goto error;
- }
-
- if (create_streams_for_trace(ctf_fs->trace)) {
- goto error;
- }
-
- if (create_ports_for_trace(ctf_fs, ctf_fs->trace, self_comp_src)) {
- goto error;
- }
-
- goto end;
-
-error:
- ctf_fs_destroy(ctf_fs);
- ctf_fs = NULL;
- bt_self_component_set_data(self_comp, NULL);
-
-end:
- return ctf_fs;
-}
-
-BT_HIDDEN
-bt_component_class_initialize_method_status ctf_fs_init(
- bt_self_component_source *self_comp_src,
- bt_self_component_source_configuration *config,
- const bt_value *params, __attribute__((unused)) void *init_method_data)
-{
- struct ctf_fs_component *ctf_fs;
- bt_component_class_initialize_method_status ret =
- BT_COMPONENT_CLASS_INITIALIZE_METHOD_STATUS_OK;
-
- ctf_fs = ctf_fs_create(params, self_comp_src);
- if (!ctf_fs) {
- ret = BT_COMPONENT_CLASS_INITIALIZE_METHOD_STATUS_ERROR;
- }
-
- return ret;
-}
-
-BT_HIDDEN
-bt_component_class_query_method_status ctf_fs_query(
- bt_self_component_class_source *comp_class,
- bt_private_query_executor *priv_query_exec,
- const char *object, const bt_value *params,
- __attribute__((unused)) void *method_data,
- const bt_value **result)
-{
- bt_component_class_query_method_status status =
- BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_OK;
- bt_logging_level log_level = bt_query_executor_get_logging_level(
- bt_private_query_executor_as_query_executor_const(
- priv_query_exec));
-
- if (strcmp(object, "metadata-info") == 0) {
- status = metadata_info_query(comp_class, params, log_level,
- result);
- } else if (strcmp(object, "babeltrace.trace-infos") == 0) {
- status = trace_infos_query(comp_class, params, log_level,
- result);
- } else if (!strcmp(object, "babeltrace.support-info")) {
- status = support_info_query(comp_class, params, log_level, result);
- } else {
- BT_LOGE("Unknown query object `%s`", object);
- status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_UNKNOWN_OBJECT;
- goto end;
- }
-end:
- return status;
-}
projects / babeltrace.git / blobdiff