+++ /dev/null
-/*
- * trace.c
- *
- * Babeltrace CTF IR - Trace
- *
- * Copyright 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <babeltrace/ctf-ir/trace-internal.h>
-#include <babeltrace/ctf-ir/clock-class-internal.h>
-#include <babeltrace/ctf-ir/stream-internal.h>
-#include <babeltrace/ctf-ir/stream-class-internal.h>
-#include <babeltrace/ctf-ir/event-internal.h>
-#include <babeltrace/ctf-ir/event-class.h>
-#include <babeltrace/ctf-ir/event-class-internal.h>
-#include <babeltrace/ctf-writer/functor-internal.h>
-#include <babeltrace/ctf-writer/clock-internal.h>
-#include <babeltrace/ctf-ir/field-types-internal.h>
-#include <babeltrace/ctf-ir/attributes-internal.h>
-#include <babeltrace/ctf-ir/validation-internal.h>
-#include <babeltrace/ctf-ir/visitor-internal.h>
-#include <babeltrace/ctf-ir/utils.h>
-#include <babeltrace/graph/notification-schema.h>
-#include <babeltrace/compiler.h>
-#include <babeltrace/values.h>
-#include <babeltrace/ref.h>
-#include <babeltrace/endian.h>
-
-#define DEFAULT_IDENTIFIER_SIZE 128
-#define DEFAULT_METADATA_STRING_SIZE 4096
-
-struct listener_wrapper {
- bt_ctf_listener_cb listener;
- void *data;
-};
-
-static
-void bt_ctf_trace_destroy(struct bt_object *obj);
-static
-int init_trace_packet_header(struct bt_ctf_trace *trace);
-static
-void bt_ctf_trace_freeze(struct bt_ctf_trace *trace);
-
-static
-const unsigned int field_type_aliases_alignments[] = {
- [FIELD_TYPE_ALIAS_UINT5_T] = 1,
- [FIELD_TYPE_ALIAS_UINT8_T ... FIELD_TYPE_ALIAS_UINT16_T] = 8,
- [FIELD_TYPE_ALIAS_UINT27_T] = 1,
- [FIELD_TYPE_ALIAS_UINT32_T ... FIELD_TYPE_ALIAS_UINT64_T] = 8,
-};
-
-static
-const unsigned int field_type_aliases_sizes[] = {
- [FIELD_TYPE_ALIAS_UINT5_T] = 5,
- [FIELD_TYPE_ALIAS_UINT8_T] = 8,
- [FIELD_TYPE_ALIAS_UINT16_T] = 16,
- [FIELD_TYPE_ALIAS_UINT27_T] = 27,
- [FIELD_TYPE_ALIAS_UINT32_T] = 32,
- [FIELD_TYPE_ALIAS_UINT64_T] = 64,
-};
-
-struct bt_ctf_trace *bt_ctf_trace_create(void)
-{
- struct bt_ctf_trace *trace = NULL;
-
- trace = g_new0(struct bt_ctf_trace, 1);
- if (!trace) {
- goto error;
- }
-
- bt_ctf_trace_set_byte_order(trace, BT_CTF_BYTE_ORDER_NATIVE);
- bt_object_init(trace, bt_ctf_trace_destroy);
- trace->clocks = g_ptr_array_new_with_free_func(
- (GDestroyNotify) bt_put);
- trace->streams = g_ptr_array_new_with_free_func(
- (GDestroyNotify) bt_object_release);
- trace->stream_classes = g_ptr_array_new_with_free_func(
- (GDestroyNotify) bt_object_release);
- if (!trace->clocks || !trace->stream_classes || !trace->streams) {
- goto error;
- }
-
- /* Generate a trace UUID */
- uuid_generate(trace->uuid);
- if (init_trace_packet_header(trace)) {
- goto error;
- }
-
- /* Create the environment array object */
- trace->environment = bt_ctf_attributes_create();
- if (!trace->environment) {
- goto error;
- }
-
- trace->listeners = g_ptr_array_new_with_free_func(
- (GDestroyNotify) g_free);
- if (!trace->listeners) {
- goto error;
- }
-
- return trace;
-
-error:
- BT_PUT(trace);
- return trace;
-}
-
-const char *bt_ctf_trace_get_name(struct bt_ctf_trace *trace)
-{
- const char *name = NULL;
-
- if (!trace || !trace->name) {
- goto end;
- }
-
- name = trace->name->str;
-end:
- return name;
-}
-
-int bt_ctf_trace_set_name(struct bt_ctf_trace *trace, const char *name)
-{
- int ret = 0;
-
- if (!trace || !name || trace->frozen) {
- ret = -1;
- goto end;
- }
-
- trace->name = trace->name ? g_string_assign(trace->name, name) :
- g_string_new(name);
- if (!trace->name) {
- ret = -1;
- goto end;
- }
-end:
- return ret;
-}
-
-void bt_ctf_trace_destroy(struct bt_object *obj)
-{
- struct bt_ctf_trace *trace;
-
- trace = container_of(obj, struct bt_ctf_trace, base);
- if (trace->environment) {
- bt_ctf_attributes_destroy(trace->environment);
- }
-
- if (trace->name) {
- g_string_free(trace->name, TRUE);
- }
-
- if (trace->clocks) {
- g_ptr_array_free(trace->clocks, TRUE);
- }
-
- if (trace->streams) {
- g_ptr_array_free(trace->streams, TRUE);
- }
-
- if (trace->stream_classes) {
- g_ptr_array_free(trace->stream_classes, TRUE);
- }
-
- if (trace->listeners) {
- g_ptr_array_free(trace->listeners, TRUE);
- }
-
- bt_put(trace->packet_header_type);
- g_free(trace);
-}
-
-int bt_ctf_trace_set_environment_field(struct bt_ctf_trace *trace,
- const char *name, struct bt_value *value)
-{
- int ret = 0;
-
- if (!trace || !name || !value ||
- bt_ctf_validate_identifier(name) ||
- !(bt_value_is_integer(value) || bt_value_is_string(value))) {
- ret = -1;
- goto end;
- }
-
- if (strchr(name, ' ')) {
- ret = -1;
- goto end;
- }
-
- if (trace->frozen) {
- /*
- * New environment fields may be added to a frozen trace,
- * but existing fields may not be changed.
- *
- * The object passed is frozen like all other attributes.
- */
- struct bt_value *attribute =
- bt_ctf_attributes_get_field_value_by_name(
- trace->environment, name);
-
- if (attribute) {
- BT_PUT(attribute);
- ret = -1;
- goto end;
- }
-
- bt_value_freeze(value);
- }
-
- ret = bt_ctf_attributes_set_field_value(trace->environment, name,
- value);
-
-end:
- return ret;
-}
-
-int bt_ctf_trace_set_environment_field_string(struct bt_ctf_trace *trace,
- const char *name, const char *value)
-{
- int ret = 0;
- struct bt_value *env_value_string_obj = NULL;
-
- if (!trace || !name || !value) {
- ret = -1;
- goto end;
- }
-
- if (trace->frozen) {
- /*
- * New environment fields may be added to a frozen trace,
- * but existing fields may not be changed.
- */
- struct bt_value *attribute =
- bt_ctf_attributes_get_field_value_by_name(
- trace->environment, name);
-
- if (attribute) {
- BT_PUT(attribute);
- ret = -1;
- goto end;
- }
- }
-
- env_value_string_obj = bt_value_string_create_init(value);
-
- if (!env_value_string_obj) {
- ret = -1;
- goto end;
- }
-
- if (trace->frozen) {
- bt_value_freeze(env_value_string_obj);
- }
- ret = bt_ctf_trace_set_environment_field(trace, name,
- env_value_string_obj);
-
-end:
- BT_PUT(env_value_string_obj);
- return ret;
-}
-
-int bt_ctf_trace_set_environment_field_integer(struct bt_ctf_trace *trace,
- const char *name, int64_t value)
-{
- int ret = 0;
- struct bt_value *env_value_integer_obj = NULL;
-
- if (!trace || !name) {
- ret = -1;
- goto end;
- }
-
- if (trace->frozen) {
- /*
- * New environment fields may be added to a frozen trace,
- * but existing fields may not be changed.
- */
- struct bt_value *attribute =
- bt_ctf_attributes_get_field_value_by_name(
- trace->environment, name);
-
- if (attribute) {
- BT_PUT(attribute);
- ret = -1;
- goto end;
- }
- }
-
- env_value_integer_obj = bt_value_integer_create_init(value);
- if (!env_value_integer_obj) {
- ret = -1;
- goto end;
- }
-
- ret = bt_ctf_trace_set_environment_field(trace, name,
- env_value_integer_obj);
- if (trace->frozen) {
- bt_value_freeze(env_value_integer_obj);
- }
-end:
- BT_PUT(env_value_integer_obj);
- return ret;
-}
-
-int bt_ctf_trace_get_environment_field_count(struct bt_ctf_trace *trace)
-{
- int ret = 0;
-
- if (!trace) {
- ret = -1;
- goto end;
- }
-
- ret = bt_ctf_attributes_get_count(trace->environment);
-
-end:
- return ret;
-}
-
-const char *
-bt_ctf_trace_get_environment_field_name(struct bt_ctf_trace *trace,
- int index)
-{
- const char *ret = NULL;
-
- if (!trace) {
- goto end;
- }
-
- ret = bt_ctf_attributes_get_field_name(trace->environment, index);
-
-end:
- return ret;
-}
-
-struct bt_value *bt_ctf_trace_get_environment_field_value(
- struct bt_ctf_trace *trace, int index)
-{
- struct bt_value *ret = NULL;
-
- if (!trace) {
- goto end;
- }
-
- ret = bt_ctf_attributes_get_field_value(trace->environment, index);
-
-end:
- return ret;
-}
-
-struct bt_value *bt_ctf_trace_get_environment_field_value_by_name(
- struct bt_ctf_trace *trace, const char *name)
-{
- struct bt_value *ret = NULL;
-
- if (!trace || !name) {
- goto end;
- }
-
- ret = bt_ctf_attributes_get_field_value_by_name(trace->environment,
- name);
-
-end:
- return ret;
-}
-
-int bt_ctf_trace_add_clock_class(struct bt_ctf_trace *trace,
- struct bt_ctf_clock_class *clock_class)
-{
- int ret = 0;
- struct search_query query = { .value = clock_class, .found = 0 };
-
- if (!trace || !bt_ctf_clock_class_is_valid(clock_class)) {
- ret = -1;
- goto end;
- }
-
- /* Check for duplicate clock classes */
- g_ptr_array_foreach(trace->clocks, value_exists, &query);
- if (query.found) {
- ret = -1;
- goto end;
- }
-
- bt_get(clock_class);
- g_ptr_array_add(trace->clocks, clock_class);
-
- if (trace->frozen) {
- bt_ctf_clock_class_freeze(clock_class);
- }
-end:
- return ret;
-}
-
-int bt_ctf_trace_get_clock_class_count(struct bt_ctf_trace *trace)
-{
- int ret = -1;
-
- if (!trace) {
- goto end;
- }
-
- ret = trace->clocks->len;
-end:
- return ret;
-}
-
-struct bt_ctf_clock_class *bt_ctf_trace_get_clock_class(
- struct bt_ctf_trace *trace, int index)
-{
- struct bt_ctf_clock_class *clock_class = NULL;
-
- if (!trace || index < 0 || index >= trace->clocks->len) {
- goto end;
- }
-
- clock_class = g_ptr_array_index(trace->clocks, index);
- bt_get(clock_class);
-end:
- return clock_class;
-}
-
-int bt_ctf_trace_add_stream_class(struct bt_ctf_trace *trace,
- struct bt_ctf_stream_class *stream_class)
-{
- int ret, i;
- int64_t stream_id;
- struct bt_ctf_validation_output trace_sc_validation_output = { 0 };
- struct bt_ctf_validation_output *ec_validation_outputs = NULL;
- const enum bt_ctf_validation_flag trace_sc_validation_flags =
- BT_CTF_VALIDATION_FLAG_TRACE |
- BT_CTF_VALIDATION_FLAG_STREAM;
- const enum bt_ctf_validation_flag ec_validation_flags =
- BT_CTF_VALIDATION_FLAG_EVENT;
- struct bt_ctf_field_type *packet_header_type = NULL;
- struct bt_ctf_field_type *packet_context_type = NULL;
- struct bt_ctf_field_type *event_header_type = NULL;
- struct bt_ctf_field_type *stream_event_ctx_type = NULL;
- int event_class_count;
- struct bt_ctf_trace *current_parent_trace = NULL;
-
- if (!trace || !stream_class) {
- ret = -1;
- goto end;
- }
-
- current_parent_trace = bt_ctf_stream_class_get_trace(stream_class);
- if (current_parent_trace) {
- /* Stream class is already associated to a trace, abort. */
- ret = -1;
- goto end;
- }
-
- event_class_count =
- bt_ctf_stream_class_get_event_class_count(stream_class);
- assert(event_class_count >= 0);
-
- /* Check for duplicate stream classes */
- for (i = 0; i < trace->stream_classes->len; i++) {
- if (trace->stream_classes->pdata[i] == stream_class) {
- /* Stream class already registered to the trace */
- ret = -1;
- goto end;
- }
- }
-
- if (stream_class->clock) {
- struct bt_ctf_clock_class *stream_clock_class =
- stream_class->clock->clock_class;
-
- if (trace->is_created_by_writer) {
- /*
- * Make sure this clock was also added to the
- * trace (potentially through its CTF writer
- * owner).
- */
- size_t i;
-
- for (i = 0; i < trace->clocks->len; i++) {
- if (trace->clocks->pdata[i] ==
- stream_clock_class) {
- /* Found! */
- break;
- }
- }
-
- if (i == trace->clocks->len) {
- /* Not found */
- ret = -1;
- goto end;
- }
- } else {
- /*
- * This trace was NOT created by a CTF writer,
- * thus do not allow the stream class to add to
- * have a clock at all. Those are two
- * independent APIs (non-writer and writer
- * APIs), and isolating them simplifies things.
- */
- ret = -1;
- goto end;
- }
- }
-
- /*
- * We're about to freeze both the trace and the stream class.
- * Also, each event class contained in this stream class are
- * already frozen.
- *
- * This trace, this stream class, and all its event classes
- * should be valid at this point.
- *
- * Validate trace and stream class first, then each event
- * class of this stream class can be validated individually.
- */
- packet_header_type =
- bt_ctf_trace_get_packet_header_type(trace);
- packet_context_type =
- bt_ctf_stream_class_get_packet_context_type(stream_class);
- event_header_type =
- bt_ctf_stream_class_get_event_header_type(stream_class);
- stream_event_ctx_type =
- bt_ctf_stream_class_get_event_context_type(stream_class);
- ret = bt_ctf_validate_class_types(trace->environment,
- packet_header_type, packet_context_type, event_header_type,
- stream_event_ctx_type, NULL, NULL, trace->valid,
- stream_class->valid, 1, &trace_sc_validation_output,
- trace_sc_validation_flags);
- BT_PUT(packet_header_type);
- BT_PUT(packet_context_type);
- BT_PUT(event_header_type);
- BT_PUT(stream_event_ctx_type);
-
- if (ret) {
- /*
- * This means something went wrong during the validation
- * process, not that the objects are invalid.
- */
- goto end;
- }
-
- if ((trace_sc_validation_output.valid_flags &
- trace_sc_validation_flags) !=
- trace_sc_validation_flags) {
- /* Invalid trace/stream class */
- ret = -1;
- goto end;
- }
-
- if (event_class_count > 0) {
- ec_validation_outputs = g_new0(struct bt_ctf_validation_output,
- event_class_count);
- if (!ec_validation_outputs) {
- ret = -1;
- goto end;
- }
- }
-
- /* Validate each event class individually */
- for (i = 0; i < event_class_count; i++) {
- struct bt_ctf_event_class *event_class =
- bt_ctf_stream_class_get_event_class(stream_class, i);
- struct bt_ctf_field_type *event_context_type = NULL;
- struct bt_ctf_field_type *event_payload_type = NULL;
-
- event_context_type =
- bt_ctf_event_class_get_context_type(event_class);
- event_payload_type =
- bt_ctf_event_class_get_payload_type(event_class);
-
- /*
- * It is important to use the field types returned by
- * the previous trace and stream class validation here
- * because copies could have been made.
- */
- ret = bt_ctf_validate_class_types(trace->environment,
- trace_sc_validation_output.packet_header_type,
- trace_sc_validation_output.packet_context_type,
- trace_sc_validation_output.event_header_type,
- trace_sc_validation_output.stream_event_ctx_type,
- event_context_type, event_payload_type,
- 1, 1, event_class->valid, &ec_validation_outputs[i],
- ec_validation_flags);
- BT_PUT(event_context_type);
- BT_PUT(event_payload_type);
- BT_PUT(event_class);
-
- if (ret) {
- goto end;
- }
-
- if ((ec_validation_outputs[i].valid_flags &
- ec_validation_flags) != ec_validation_flags) {
- /* Invalid event class */
- ret = -1;
- goto end;
- }
- }
-
- stream_id = bt_ctf_stream_class_get_id(stream_class);
- if (stream_id < 0) {
- stream_id = trace->next_stream_id++;
-
- /* Try to assign a new stream id */
- for (i = 0; i < trace->stream_classes->len; i++) {
- if (stream_id == bt_ctf_stream_class_get_id(
- trace->stream_classes->pdata[i])) {
- /* Duplicate stream id found */
- ret = -1;
- goto end;
- }
- }
-
- if (bt_ctf_stream_class_set_id_no_check(stream_class,
- stream_id)) {
- /* TODO Should retry with a different stream id */
- ret = -1;
- goto end;
- }
- }
-
- bt_object_set_parent(stream_class, trace);
- g_ptr_array_add(trace->stream_classes, stream_class);
-
- /*
- * At this point we know that the function will be successful.
- * Therefore we can replace the trace and stream class field
- * types with what's in their validation output structure and
- * mark them as valid. We can also replace the field types of
- * all the event classes of the stream class and mark them as
- * valid.
- */
- bt_ctf_validation_replace_types(trace, stream_class, NULL,
- &trace_sc_validation_output, trace_sc_validation_flags);
- trace->valid = 1;
- stream_class->valid = 1;
-
- /*
- * Put what was not moved in bt_ctf_validation_replace_types().
- */
- bt_ctf_validation_output_put_types(&trace_sc_validation_output);
-
- for (i = 0; i < event_class_count; i++) {
- struct bt_ctf_event_class *event_class =
- bt_ctf_stream_class_get_event_class(stream_class, i);
-
- bt_ctf_validation_replace_types(NULL, NULL, event_class,
- &ec_validation_outputs[i], ec_validation_flags);
- event_class->valid = 1;
- BT_PUT(event_class);
-
- /*
- * Put what was not moved in
- * bt_ctf_validation_replace_types().
- */
- bt_ctf_validation_output_put_types(&ec_validation_outputs[i]);
- }
-
- /*
- * All field type byte orders set as "native" byte ordering can now be
- * safely set to trace's own endianness, including the stream class'.
- */
- bt_ctf_field_type_set_native_byte_order(trace->packet_header_type,
- trace->byte_order);
- bt_ctf_stream_class_set_byte_order(stream_class, trace->byte_order);
-
- /*
- * Freeze the trace and the stream class.
- */
- bt_ctf_stream_class_freeze(stream_class);
- bt_ctf_trace_freeze(trace);
-
- /* Notifiy listeners of the trace's schema modification. */
- bt_ctf_stream_class_visit(stream_class,
- bt_ctf_trace_object_modification, trace);
-end:
- if (ret) {
- bt_object_set_parent(stream_class, NULL);
-
- if (ec_validation_outputs) {
- for (i = 0; i < event_class_count; i++) {
- bt_ctf_validation_output_put_types(
- &ec_validation_outputs[i]);
- }
- }
- }
-
- g_free(ec_validation_outputs);
- bt_ctf_validation_output_put_types(&trace_sc_validation_output);
- bt_put(current_parent_trace);
- assert(!packet_header_type);
- assert(!packet_context_type);
- assert(!event_header_type);
- assert(!stream_event_ctx_type);
-
- return ret;
-}
-
-int bt_ctf_trace_get_stream_class_count(struct bt_ctf_trace *trace)
-{
- int ret;
-
- if (!trace) {
- ret = -1;
- goto end;
- }
-
- ret = trace->stream_classes->len;
-end:
- return ret;
-}
-
-struct bt_ctf_stream_class *bt_ctf_trace_get_stream_class(
- struct bt_ctf_trace *trace, int index)
-{
- struct bt_ctf_stream_class *stream_class = NULL;
-
- if (!trace || index < 0 || index >= trace->stream_classes->len) {
- goto end;
- }
-
- stream_class = g_ptr_array_index(trace->stream_classes, index);
- bt_get(stream_class);
-end:
- return stream_class;
-}
-
-struct bt_ctf_stream_class *bt_ctf_trace_get_stream_class_by_id(
- struct bt_ctf_trace *trace, uint32_t id)
-{
- int i;
- struct bt_ctf_stream_class *stream_class = NULL;
-
- if (!trace) {
- goto end;
- }
-
- for (i = 0; i < trace->stream_classes->len; i++) {
- struct bt_ctf_stream_class *stream_class_candidate;
-
- stream_class_candidate =
- g_ptr_array_index(trace->stream_classes, i);
-
- if (bt_ctf_stream_class_get_id(stream_class_candidate) ==
- (int64_t) id) {
- stream_class = stream_class_candidate;
- bt_get(stream_class);
- goto end;
- }
- }
-
-end:
- return stream_class;
-}
-
-struct bt_ctf_clock_class *bt_ctf_trace_get_clock_class_by_name(
- struct bt_ctf_trace *trace, const char *name)
-{
- size_t i;
- struct bt_ctf_clock_class *clock_class = NULL;
-
- if (!trace || !name) {
- goto end;
- }
-
- for (i = 0; i < trace->clocks->len; i++) {
- struct bt_ctf_clock_class *cur_clk =
- g_ptr_array_index(trace->clocks, i);
- const char *cur_clk_name = bt_ctf_clock_class_get_name(cur_clk);
-
- if (!cur_clk_name) {
- goto end;
- }
-
- if (!strcmp(cur_clk_name, name)) {
- clock_class = cur_clk;
- bt_get(clock_class);
- goto end;
- }
- }
-
-end:
- return clock_class;
-}
-
-BT_HIDDEN
-const char *get_byte_order_string(int byte_order)
-{
- const char *string;
-
- switch (byte_order) {
- case LITTLE_ENDIAN:
- string = "le";
- break;
- case BIG_ENDIAN:
- string = "be";
- break;
- default:
- string = "unknown";
- break;
- }
-
- return string;
-}
-
-static
-int append_trace_metadata(struct bt_ctf_trace *trace,
- struct metadata_context *context)
-{
- unsigned char *uuid = trace->uuid;
- int ret;
-
- g_string_append(context->string, "trace {\n");
-
- g_string_append(context->string, "\tmajor = 1;\n");
- g_string_append(context->string, "\tminor = 8;\n");
-
- g_string_append_printf(context->string,
- "\tuuid = \"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\";\n",
- uuid[0], uuid[1], uuid[2], uuid[3],
- uuid[4], uuid[5], uuid[6], uuid[7],
- uuid[8], uuid[9], uuid[10], uuid[11],
- uuid[12], uuid[13], uuid[14], uuid[15]);
- g_string_append_printf(context->string, "\tbyte_order = %s;\n",
- get_byte_order_string(trace->byte_order));
-
- g_string_append(context->string, "\tpacket.header := ");
- context->current_indentation_level++;
- g_string_assign(context->field_name, "");
- ret = bt_ctf_field_type_serialize(trace->packet_header_type,
- context);
- if (ret) {
- goto end;
- }
- context->current_indentation_level--;
-
- g_string_append(context->string, ";\n};\n\n");
-end:
- return ret;
-}
-
-static
-void append_env_metadata(struct bt_ctf_trace *trace,
- struct metadata_context *context)
-{
- int i;
- int env_size;
-
- env_size = bt_ctf_attributes_get_count(trace->environment);
-
- if (env_size <= 0) {
- return;
- }
-
- g_string_append(context->string, "env {\n");
-
- for (i = 0; i < env_size; i++) {
- struct bt_value *env_field_value_obj = NULL;
- const char *entry_name;
-
- entry_name = bt_ctf_attributes_get_field_name(
- trace->environment, i);
- env_field_value_obj = bt_ctf_attributes_get_field_value(
- trace->environment, i);
-
- if (!entry_name || !env_field_value_obj) {
- goto loop_next;
- }
-
- switch (bt_value_get_type(env_field_value_obj)) {
- case BT_VALUE_TYPE_INTEGER:
- {
- int ret;
- int64_t int_value;
-
- ret = bt_value_integer_get(env_field_value_obj,
- &int_value);
-
- if (ret) {
- goto loop_next;
- }
-
- g_string_append_printf(context->string,
- "\t%s = %" PRId64 ";\n", entry_name,
- int_value);
- break;
- }
- case BT_VALUE_TYPE_STRING:
- {
- int ret;
- const char *str_value;
- char *escaped_str = NULL;
-
- ret = bt_value_string_get(env_field_value_obj,
- &str_value);
-
- if (ret) {
- goto loop_next;
- }
-
- escaped_str = g_strescape(str_value, NULL);
-
- if (!escaped_str) {
- goto loop_next;
- }
-
- g_string_append_printf(context->string,
- "\t%s = \"%s\";\n", entry_name, escaped_str);
- free(escaped_str);
- break;
- }
-
- default:
- goto loop_next;
- }
-
-loop_next:
- BT_PUT(env_field_value_obj);
- }
-
- g_string_append(context->string, "};\n\n");
-}
-
-char *bt_ctf_trace_get_metadata_string(struct bt_ctf_trace *trace)
-{
- char *metadata = NULL;
- struct metadata_context *context = NULL;
- int err = 0;
- size_t i;
-
- if (!trace) {
- goto end;
- }
-
- context = g_new0(struct metadata_context, 1);
- if (!context) {
- goto end;
- }
-
- context->field_name = g_string_sized_new(DEFAULT_IDENTIFIER_SIZE);
- context->string = g_string_sized_new(DEFAULT_METADATA_STRING_SIZE);
- g_string_append(context->string, "/* CTF 1.8 */\n\n");
- if (append_trace_metadata(trace, context)) {
- goto error;
- }
- append_env_metadata(trace, context);
- g_ptr_array_foreach(trace->clocks,
- (GFunc)bt_ctf_clock_class_serialize, context);
-
- for (i = 0; i < trace->stream_classes->len; i++) {
- err = bt_ctf_stream_class_serialize(
- trace->stream_classes->pdata[i], context);
- if (err) {
- goto error;
- }
- }
-
- metadata = context->string->str;
-error:
- g_string_free(context->string, err ? TRUE : FALSE);
- g_string_free(context->field_name, TRUE);
- g_free(context);
-end:
- return metadata;
-}
-
-enum bt_ctf_byte_order bt_ctf_trace_get_byte_order(struct bt_ctf_trace *trace)
-{
- enum bt_ctf_byte_order ret = BT_CTF_BYTE_ORDER_UNKNOWN;
-
- if (!trace) {
- goto end;
- }
-
- switch (trace->byte_order) {
- case BIG_ENDIAN:
- ret = BT_CTF_BYTE_ORDER_BIG_ENDIAN;
- break;
- case LITTLE_ENDIAN:
- ret = BT_CTF_BYTE_ORDER_LITTLE_ENDIAN;
- break;
- default:
- break;
- }
-end:
- return ret;
-}
-
-int bt_ctf_trace_set_byte_order(struct bt_ctf_trace *trace,
- enum bt_ctf_byte_order byte_order)
-{
- int ret = 0;
- int internal_byte_order;
-
- if (!trace || trace->frozen) {
- ret = -1;
- goto end;
- }
-
- switch (byte_order) {
- case BT_CTF_BYTE_ORDER_NATIVE:
- /*
- * This doesn't make sense since the CTF specification defines
- * the "native" byte order as "the byte order described in the
- * trace description". However, this behavior had been
- * implemented as part of v1.2 and is kept to maintain
- * compatibility.
- *
- * This may be changed on a major version bump only.
- */
- internal_byte_order = (G_BYTE_ORDER == G_LITTLE_ENDIAN) ?
- LITTLE_ENDIAN : BIG_ENDIAN;
- break;
- case BT_CTF_BYTE_ORDER_LITTLE_ENDIAN:
- internal_byte_order = LITTLE_ENDIAN;
- break;
- case BT_CTF_BYTE_ORDER_BIG_ENDIAN:
- case BT_CTF_BYTE_ORDER_NETWORK:
- internal_byte_order = BIG_ENDIAN;
- break;
- default:
- ret = -1;
- goto end;
- }
-
- trace->byte_order = internal_byte_order;
-end:
- return ret;
-}
-
-struct bt_ctf_field_type *bt_ctf_trace_get_packet_header_type(
- struct bt_ctf_trace *trace)
-{
- struct bt_ctf_field_type *field_type = NULL;
-
- if (!trace) {
- goto end;
- }
-
- bt_get(trace->packet_header_type);
- field_type = trace->packet_header_type;
-end:
- return field_type;
-}
-
-int bt_ctf_trace_set_packet_header_type(struct bt_ctf_trace *trace,
- struct bt_ctf_field_type *packet_header_type)
-{
- int ret = 0;
-
- if (!trace || trace->frozen) {
- ret = -1;
- goto end;
- }
-
- /* packet_header_type must be a structure. */
- if (packet_header_type &&
- bt_ctf_field_type_get_type_id(packet_header_type) !=
- BT_CTF_TYPE_ID_STRUCT) {
- ret = -1;
- goto end;
- }
-
- bt_put(trace->packet_header_type);
- trace->packet_header_type = bt_get(packet_header_type);
-end:
- return ret;
-}
-
-static
-int get_stream_class_count(void *element)
-{
- return bt_ctf_trace_get_stream_class_count(
- (struct bt_ctf_trace *) element);
-}
-
-static
-void *get_stream_class(void *element, int i)
-{
- return bt_ctf_trace_get_stream_class(
- (struct bt_ctf_trace *) element, i);
-}
-
-static
-int visit_stream_class(void *object, bt_ctf_visitor visitor,void *data)
-{
- return bt_ctf_stream_class_visit(object, visitor, data);
-}
-
-int bt_ctf_trace_visit(struct bt_ctf_trace *trace,
- bt_ctf_visitor visitor, void *data)
-{
- int ret;
- struct bt_ctf_object obj =
- { .object = trace, .type = BT_CTF_OBJECT_TYPE_TRACE };
-
- if (!trace || !visitor) {
- ret = -1;
- goto end;
- }
-
- ret = visitor_helper(&obj, get_stream_class_count,
- get_stream_class, visit_stream_class, visitor, data);
-end:
- return ret;
-}
-
-static
-int invoke_listener(struct bt_ctf_object *object, void *data)
-{
- struct listener_wrapper *listener_wrapper = data;
-
- listener_wrapper->listener(object, listener_wrapper->data);
- return 0;
-}
-
-int bt_ctf_trace_add_listener(struct bt_ctf_trace *trace,
- bt_ctf_listener_cb listener, void *listener_data)
-{
- int ret = 0;
- struct listener_wrapper *listener_wrapper =
- g_new0(struct listener_wrapper, 1);
-
- if (!trace || !listener || !listener_wrapper) {
- ret = -1;
- goto error;
- }
-
- listener_wrapper->listener = listener;
- listener_wrapper->data = listener_data;
-
- /* Visit the current schema. */
- ret = bt_ctf_trace_visit(trace, invoke_listener, listener_wrapper);
- if (ret) {
- goto error;
- }
-
- /*
- * Add listener to the array of callbacks which will be invoked on
- * schema changes.
- */
- g_ptr_array_add(trace->listeners, listener_wrapper);
- return ret;
-error:
- g_free(listener_wrapper);
- return ret;
-}
-
-BT_HIDDEN
-int bt_ctf_trace_object_modification(struct bt_ctf_object *object,
- void *trace_ptr)
-{
- size_t i;
- struct bt_ctf_trace *trace = trace_ptr;
-
- assert(trace);
- assert(object);
-
- if (trace->listeners->len == 0) {
- goto end;
- }
-
- for (i = 0; i < trace->listeners->len; i++) {
- struct listener_wrapper *listener =
- g_ptr_array_index(trace->listeners, i);
-
- listener->listener(object, listener->data);
- }
-end:
- return 0;
-}
-
-BT_HIDDEN
-struct bt_ctf_field_type *get_field_type(enum field_type_alias alias)
-{
- int ret;
- unsigned int alignment, size;
- struct bt_ctf_field_type *field_type = NULL;
-
- if (alias >= NR_FIELD_TYPE_ALIAS) {
- goto end;
- }
-
- alignment = field_type_aliases_alignments[alias];
- size = field_type_aliases_sizes[alias];
- field_type = bt_ctf_field_type_integer_create(size);
- ret = bt_ctf_field_type_set_alignment(field_type, alignment);
- if (ret) {
- BT_PUT(field_type);
- }
-end:
- return field_type;
-}
-
-static
-void bt_ctf_trace_freeze(struct bt_ctf_trace *trace)
-{
- int i;
-
- bt_ctf_field_type_freeze(trace->packet_header_type);
- bt_ctf_attributes_freeze(trace->environment);
-
- for (i = 0; i < trace->clocks->len; i++) {
- struct bt_ctf_clock_class *clock_class =
- g_ptr_array_index(trace->clocks, i);
-
- bt_ctf_clock_class_freeze(clock_class);
- }
-
- trace->frozen = 1;
-}
-
-static
-int init_trace_packet_header(struct bt_ctf_trace *trace)
-{
- int ret = 0;
- struct bt_ctf_field *magic = NULL, *uuid_array = NULL;
- struct bt_ctf_field_type *_uint32_t =
- get_field_type(FIELD_TYPE_ALIAS_UINT32_T);
- struct bt_ctf_field_type *_uint8_t =
- get_field_type(FIELD_TYPE_ALIAS_UINT8_T);
- struct bt_ctf_field_type *trace_packet_header_type =
- bt_ctf_field_type_structure_create();
- struct bt_ctf_field_type *uuid_array_type =
- bt_ctf_field_type_array_create(_uint8_t, 16);
-
- if (!trace_packet_header_type || !uuid_array_type) {
- ret = -1;
- goto end;
- }
-
- ret = bt_ctf_field_type_structure_add_field(trace_packet_header_type,
- _uint32_t, "magic");
- if (ret) {
- goto end;
- }
-
- ret = bt_ctf_field_type_structure_add_field(trace_packet_header_type,
- uuid_array_type, "uuid");
- if (ret) {
- goto end;
- }
-
- ret = bt_ctf_field_type_structure_add_field(trace_packet_header_type,
- _uint32_t, "stream_id");
- if (ret) {
- goto end;
- }
-
- ret = bt_ctf_trace_set_packet_header_type(trace,
- trace_packet_header_type);
- if (ret) {
- goto end;
- }
-end:
- bt_put(uuid_array_type);
- bt_put(_uint32_t);
- bt_put(_uint8_t);
- bt_put(magic);
- bt_put(uuid_array);
- bt_put(trace_packet_header_type);
- return ret;
-}
projects / babeltrace.git / blobdiff