+++ /dev/null
-/*
- * writer.c
- *
- * Babeltrace CTF Writer
- *
- * Copyright 2013, 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-writer/clock-internal.h>
-#include <babeltrace/ctf-writer/writer-internal.h>
-#include <babeltrace/ctf-ir/field-types-internal.h>
-#include <babeltrace/ctf-ir/fields-internal.h>
-#include <babeltrace/ctf-writer/functor-internal.h>
-#include <babeltrace/ctf-ir/stream-class-internal.h>
-#include <babeltrace/ctf-ir/stream-internal.h>
-#include <babeltrace/ctf-ir/trace-internal.h>
-#include <babeltrace/ref.h>
-#include <babeltrace/compiler.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <inttypes.h>
-
-static
-void bt_ctf_writer_destroy(struct bt_object *obj);
-
-struct bt_ctf_writer *bt_ctf_writer_create(const char *path)
-{
- struct bt_ctf_writer *writer = NULL;
-
- if (!path) {
- goto error;
- }
-
- writer = g_new0(struct bt_ctf_writer, 1);
- if (!writer) {
- goto error;
- }
-
- bt_object_init(writer, bt_ctf_writer_destroy);
- writer->path = g_string_new(path);
- if (!writer->path) {
- goto error_destroy;
- }
-
- writer->trace = bt_ctf_trace_create();
- if (!writer->trace) {
- goto error_destroy;
- }
-
- writer->trace->is_created_by_writer = 1;
- bt_object_set_parent(writer->trace, writer);
- bt_put(writer->trace);
- /* Create trace directory if necessary and open a metadata file */
- if (g_mkdir_with_parents(path, S_IRWXU | S_IRWXG)) {
- perror("g_mkdir_with_parents");
- goto error_destroy;
- }
-
- writer->trace_dir_fd = open(path, O_RDONLY, S_IRWXU | S_IRWXG);
- if (writer->trace_dir_fd < 0) {
- perror("open");
- goto error_destroy;
- }
-
- writer->metadata_fd = openat(writer->trace_dir_fd, "metadata",
- O_WRONLY | O_CREAT | O_TRUNC,
- S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
-
- return writer;
-
-error_destroy:
- unlinkat(writer->trace_dir_fd, "metadata", 0);
- BT_PUT(writer);
-error:
- return writer;
-}
-
-void bt_ctf_writer_destroy(struct bt_object *obj)
-{
- struct bt_ctf_writer *writer;
-
- writer = container_of(obj, struct bt_ctf_writer, base);
- bt_ctf_writer_flush_metadata(writer);
- if (writer->path) {
- g_string_free(writer->path, TRUE);
- }
-
- if (writer->trace_dir_fd > 0) {
- if (close(writer->trace_dir_fd)) {
- perror("close");
- }
- }
-
- if (writer->metadata_fd > 0) {
- if (close(writer->metadata_fd)) {
- perror("close");
- }
- }
-
- bt_object_release(writer->trace);
- g_free(writer);
-}
-
-struct bt_ctf_trace *bt_ctf_writer_get_trace(struct bt_ctf_writer *writer)
-{
- struct bt_ctf_trace *trace = NULL;
-
- if (!writer) {
- goto end;
- }
-
- trace = writer->trace;
- bt_get(trace);
-end:
- return trace;
-}
-
-struct bt_ctf_stream *bt_ctf_writer_create_stream(struct bt_ctf_writer *writer,
- struct bt_ctf_stream_class *stream_class)
-{
- struct bt_ctf_stream *stream = NULL;
- int stream_class_count;
- bool stream_class_found = false;
- int i;
-
- if (!writer || !stream_class) {
- goto error;
- }
-
- /* Make sure the stream class is part of the writer's trace */
- stream_class_count = bt_ctf_trace_get_stream_class_count(writer->trace);
- if (stream_class_count < 0) {
- goto error;
- }
-
- for (i = 0; i < stream_class_count; i++) {
- struct bt_ctf_stream_class *existing_stream_class =
- bt_ctf_trace_get_stream_class(writer->trace, i);
-
- if (existing_stream_class == stream_class) {
- stream_class_found = true;
- }
-
- BT_PUT(existing_stream_class);
-
- if (stream_class_found) {
- break;
- }
- }
-
- if (!stream_class_found) {
- int ret = bt_ctf_trace_add_stream_class(writer->trace,
- stream_class);
-
- if (ret) {
- goto error;
- }
- }
-
- stream = bt_ctf_stream_create(stream_class, NULL);
- if (!stream) {
- goto error;
- }
-
- return stream;
-
-error:
- BT_PUT(stream);
- return stream;
-}
-
-int bt_ctf_writer_add_environment_field(struct bt_ctf_writer *writer,
- const char *name,
- const char *value)
-{
- int ret = -1;
-
- if (!writer || !name || !value) {
- goto end;
- }
-
- ret = bt_ctf_trace_set_environment_field_string(writer->trace,
- name, value);
-end:
- return ret;
-}
-
-int bt_ctf_writer_add_environment_field_int64(struct bt_ctf_writer *writer,
- const char *name,
- int64_t value)
-{
- int ret = -1;
-
- if (!writer || !name) {
- goto end;
- }
-
- ret = bt_ctf_trace_set_environment_field_integer(writer->trace, name,
- value);
-end:
- return ret;
-}
-
-int bt_ctf_writer_add_clock(struct bt_ctf_writer *writer,
- struct bt_ctf_clock *clock)
-{
- int ret = -1;
-
- if (!writer || !clock) {
- goto end;
- }
-
- ret = bt_ctf_trace_add_clock_class(writer->trace, clock->clock_class);
-end:
- return ret;
-}
-
-char *bt_ctf_writer_get_metadata_string(struct bt_ctf_writer *writer)
-{
- char *metadata_string = NULL;
-
- if (!writer) {
- goto end;
- }
-
- metadata_string = bt_ctf_trace_get_metadata_string(
- writer->trace);
-end:
- return metadata_string;
-}
-
-void bt_ctf_writer_flush_metadata(struct bt_ctf_writer *writer)
-{
- int ret;
- char *metadata_string = NULL;
-
- if (!writer) {
- goto end;
- }
-
- metadata_string = bt_ctf_trace_get_metadata_string(
- writer->trace);
- if (!metadata_string) {
- goto end;
- }
-
- if (lseek(writer->metadata_fd, 0, SEEK_SET) == (off_t)-1) {
- perror("lseek");
- goto end;
- }
-
- if (ftruncate(writer->metadata_fd, 0)) {
- perror("ftruncate");
- goto end;
- }
-
- ret = write(writer->metadata_fd, metadata_string,
- strlen(metadata_string));
- if (ret < 0) {
- perror("write");
- goto end;
- }
-end:
- g_free(metadata_string);
-}
-
-int bt_ctf_writer_set_byte_order(struct bt_ctf_writer *writer,
- enum bt_ctf_byte_order byte_order)
-{
- int ret = 0;
-
- if (!writer || writer->frozen) {
- ret = -1;
- goto end;
- }
-
- ret = bt_ctf_trace_set_byte_order(writer->trace,
- byte_order);
-end:
- return ret;
-}
-
-void bt_ctf_writer_get(struct bt_ctf_writer *writer)
-{
- bt_get(writer);
-}
-
-void bt_ctf_writer_put(struct bt_ctf_writer *writer)
-{
- bt_put(writer);
-}
-
-BT_HIDDEN
-void bt_ctf_writer_freeze(struct bt_ctf_writer *writer)
-{
- writer->frozen = 1;
-}
projects / babeltrace.git / blobdiff