src.ctf.fs: use ctf_fs_ds_file::UP in add_ds_file_to_ds_file_group
[babeltrace.git] / src / plugins / ctf / fs-src / fs.cpp
index d49e987951186346d77a67aff4af30654821b04e..00985e6d8c45094c709fb6084207815aac698a2d 100644 (file)
@@ -360,10 +360,9 @@ bt2c::GCharUP ctf_fs_make_port_name(struct ctf_fs_ds_file_group *ds_file_group)
     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 =
-            (struct ctf_fs_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);
+        BT_ASSERT(ds_file_group->ds_file_infos.size() == 1);
+        const auto& ds_file_info = *ds_file_group->ds_file_infos[0];
+        g_string_append_printf(name, " | %s", ds_file_info.path.c_str());
     }
 
     return bt2c::GCharUP {g_string_free(name, FALSE)};
@@ -422,45 +421,26 @@ end:
     return ret;
 }
 
-/* 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)
+                                                     ctf_fs_ds_file_info::UP 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 =
-            (struct ctf_fs_ds_file_info *) g_ptr_array_index(ds_file_group->ds_file_infos, i);
+    auto it = ds_file_group->ds_file_infos.begin();
+
+    for (; it != ds_file_group->ds_file_infos.end(); ++it) {
+        const ctf_fs_ds_file_info& other_ds_file_info = **it;
 
-        if (ds_file_info->begin_ns < other_ds_file_info->begin_ns) {
+        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);
+    ds_file_group->ds_file_infos.insert(it, std::move(ds_file_info));
 }
 
 static bool ds_index_entries_equal(const struct ctf_fs_ds_index_entry *left,
@@ -495,16 +475,12 @@ static bool ds_index_entries_equal(const struct ctf_fs_ds_index_entry *left,
  */
 
 static void ds_index_insert_ds_index_entry_sorted(struct ctf_fs_ds_index *index,
-                                                  struct ctf_fs_ds_index_entry *entry)
+                                                  ctf_fs_ds_index_entry::UP 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 = (struct ctf_fs_ds_index_entry *) g_ptr_array_index(index->entries, i);
-
-        if (entry->timestamp_begin_ns <= other_entry->timestamp_begin_ns) {
+    auto otherEntry = index->entries.begin();
+    for (; otherEntry != index->entries.end(); ++otherEntry) {
+        if (entry->timestamp_begin_ns <= (*otherEntry)->timestamp_begin_ns) {
             break;
         }
     }
@@ -516,27 +492,16 @@ static void ds_index_insert_ds_index_entry_sorted(struct ctf_fs_ds_index *index,
      * 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 {
-        delete entry;
+    if (otherEntry == index->entries.end() ||
+        !ds_index_entries_equal(entry.get(), otherEntry->get())) {
+        index->entries.insert(otherEntry, std::move(entry));
     }
 }
 
-static void merge_ctf_fs_ds_indexes(struct ctf_fs_ds_index *dest, struct ctf_fs_ds_index *src)
+static void merge_ctf_fs_ds_indexes(struct ctf_fs_ds_index *dest, ctf_fs_ds_index::UP src)
 {
-    guint i;
-
-    for (i = 0; i < src->entries->len; i++) {
-        struct ctf_fs_ds_index_entry *entry =
-            (struct ctf_fs_ds_index_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);
+    for (auto& entry : src->entries) {
+        ds_index_insert_ds_index_entry_sorted(dest, std::move(entry));
     }
 }
 
@@ -547,9 +512,8 @@ static int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace, const
     struct ctf_fs_ds_file_group *ds_file_group = NULL;
     ctf_fs_ds_file_group::UP new_ds_file_group;
     int ret;
-    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;
+    ctf_fs_ds_file_info::UP ds_file_info;
+    ctf_fs_ds_index::UP index;
     struct ctf_msg_iter *msg_iter = NULL;
     struct ctf_stream_class *sc = NULL;
     struct ctf_msg_iter_packet_properties props;
@@ -558,7 +522,8 @@ static int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace, const
      * 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, path, ctf_fs_trace->logger);
+    const auto ds_file =
+        ctf_fs_ds_file_create(ctf_fs_trace, bt2::Stream::Shared {}, path, ctf_fs_trace->logger);
     if (!ds_file) {
         goto error;
     }
@@ -567,7 +532,7 @@ static int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace, const
     msg_iter = ctf_msg_iter_create(
         ctf_fs_trace->metadata->tc,
         bt_common_get_page_size(static_cast<int>(ctf_fs_trace->logger.level())) * 8,
-        ctf_fs_ds_file_medops, ds_file, nullptr, ctf_fs_trace->logger);
+        ctf_fs_ds_file_medops, ds_file.get(), nullptr, ctf_fs_trace->logger);
     if (!msg_iter) {
         BT_CPPLOGE_STR_SPEC(ctf_fs_trace->logger, "Cannot create a CTF message iterator.");
         goto error;
@@ -606,10 +571,10 @@ static int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace, const
         goto error;
     }
 
-    index = ctf_fs_ds_file_build_index(ds_file, ds_file_info, msg_iter);
+    index = ctf_fs_ds_file_build_index(ds_file.get(), ds_file_info.get(), msg_iter);
     if (!index) {
         BT_CPPLOGE_APPEND_CAUSE_SPEC(ctf_fs_trace->logger, "Failed to index CTF stream file \'{}\'",
-                                     ds_file->file->path->str);
+                                     ds_file->file->path);
         goto error;
     }
 
@@ -630,17 +595,14 @@ static int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace, const
          * there's no timestamp to order the file within its
          * group.
          */
-        new_ds_file_group = ctf_fs_ds_file_group_create(ctf_fs_trace, sc, UINT64_C(-1), index);
-
-        /* Ownership of index is transferred. */
-        index = NULL;
+        new_ds_file_group =
+            ctf_fs_ds_file_group_create(ctf_fs_trace, sc, UINT64_C(-1), std::move(index));
 
         if (!new_ds_file_group) {
             goto error;
         }
 
-        ds_file_group_insert_ds_file_info_sorted(new_ds_file_group.get(),
-                                                 BT_MOVE_REF(ds_file_info));
+        ds_file_group_insert_ds_file_info_sorted(new_ds_file_group.get(), std::move(ds_file_info));
         ctf_fs_trace->ds_file_groups.emplace_back(std::move(new_ds_file_group));
         goto end;
     }
@@ -658,9 +620,7 @@ static int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace, const
 
     if (!ds_file_group) {
         new_ds_file_group =
-            ctf_fs_ds_file_group_create(ctf_fs_trace, sc, stream_instance_id, index);
-        /* Ownership of index is transferred. */
-        index = NULL;
+            ctf_fs_ds_file_group_create(ctf_fs_trace, sc, stream_instance_id, std::move(index));
         if (!new_ds_file_group) {
             goto error;
         }
@@ -668,10 +628,10 @@ static int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace, const
         ds_file_group = new_ds_file_group.get();
         ctf_fs_trace->ds_file_groups.emplace_back(std::move(new_ds_file_group));
     } else {
-        merge_ctf_fs_ds_indexes(ds_file_group->index, index);
+        merge_ctf_fs_ds_indexes(ds_file_group->index.get(), std::move(index));
     }
 
-    ds_file_group_insert_ds_file_info_sorted(ds_file_group, BT_MOVE_REF(ds_file_info));
+    ds_file_group_insert_ds_file_info_sorted(ds_file_group, std::move(ds_file_info));
 
     goto end;
 
@@ -679,14 +639,10 @@ error:
     ret = -1;
 
 end:
-    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;
 }
 
@@ -707,8 +663,6 @@ static int create_ds_file_groups(struct ctf_fs_trace *ctf_fs_trace)
     }
 
     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_CPPLOGI_SPEC(ctf_fs_trace->logger,
@@ -725,7 +679,7 @@ static int create_ds_file_groups(struct ctf_fs_trace *ctf_fs_trace)
         }
 
         /* Create the file. */
-        file = ctf_fs_file_create(ctf_fs_trace->logger);
+        const auto file = ctf_fs_file_create(ctf_fs_trace->logger);
         if (!file) {
             BT_CPPLOGE_APPEND_CAUSE_SPEC(
                 ctf_fs_trace->logger,
@@ -735,40 +689,33 @@ static int create_ds_file_groups(struct ctf_fs_trace *ctf_fs_trace)
         }
 
         /* 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_CPPLOGI_SPEC(ctf_fs_trace->logger, "Ignoring non-regular file `{}`",
-                            file->path->str);
-            ctf_fs_file_destroy(file);
-            file = NULL;
+        file->path = fmt::format("{}" G_DIR_SEPARATOR_S "{}", ctf_fs_trace->path->str, basename);
+
+        if (!g_file_test(file->path.c_str(), G_FILE_TEST_IS_REGULAR)) {
+            BT_CPPLOGI_SPEC(ctf_fs_trace->logger, "Ignoring non-regular file `{}`", file->path);
             continue;
         }
 
-        ret = ctf_fs_file_open(file, "rb");
+        ret = ctf_fs_file_open(file.get(), "rb");
         if (ret) {
             BT_CPPLOGE_APPEND_CAUSE_SPEC(ctf_fs_trace->logger, "Cannot open stream file `{}`",
-                                         file->path->str);
+                                         file->path);
             goto error;
         }
 
         if (file->size == 0) {
             /* Skip empty stream. */
-            BT_CPPLOGI_SPEC(ctf_fs_trace->logger, "Ignoring empty file `{}`", file->path->str);
-            ctf_fs_file_destroy(file);
+            BT_CPPLOGI_SPEC(ctf_fs_trace->logger, "Ignoring empty file `{}`", file->path);
             continue;
         }
 
-        ret = add_ds_file_to_ds_file_group(ctf_fs_trace, file->path->str);
+        ret = add_ds_file_to_ds_file_group(ctf_fs_trace, file->path.c_str());
         if (ret) {
             BT_CPPLOGE_APPEND_CAUSE_SPEC(ctf_fs_trace->logger,
                                          "Cannot add stream file `{}` to stream file group",
-                                         file->path->str);
-            ctf_fs_file_destroy(file);
+                                         file->path);
             goto error;
         }
-
-        ctf_fs_file_destroy(file);
     }
 
     goto end;
@@ -1002,20 +949,12 @@ static unsigned int metadata_count_stream_and_event_classes(struct ctf_fs_trace
 static void merge_ctf_fs_ds_file_groups(struct ctf_fs_ds_file_group *dest,
                                         ctf_fs_ds_file_group::UP src)
 {
-    guint i;
-
-    for (i = 0; i < src->ds_file_infos->len; i++) {
-        struct ctf_fs_ds_file_info *ds_file_info =
-            (struct ctf_fs_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);
+    for (auto& ds_file_info : src->ds_file_infos) {
+        ds_file_group_insert_ds_file_info_sorted(dest, std::move(ds_file_info));
     }
 
     /* Merge both indexes. */
-    merge_ctf_fs_ds_indexes(dest->index, src->index);
+    merge_ctf_fs_ds_indexes(dest->index.get(), std::move(src->index));
 }
 
 /* Merge src_trace's data stream file groups into dest_trace's. */
@@ -1071,23 +1010,20 @@ static int merge_matching_ctf_fs_ds_file_groups(struct ctf_fs_trace *dest_trace,
          */
         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->logger);
+            auto index = ctf_fs_ds_index_create();
             if (!index) {
                 ret = -1;
                 goto end;
             }
 
             auto new_dest_group =
-                ctf_fs_ds_file_group_create(dest_trace, sc, src_group->stream_id, index);
+                ctf_fs_ds_file_group_create(dest_trace, sc, src_group->stream_id, std::move(index));
 
-            /* Ownership of index is transferred. */
-            index = NULL;
             if (!new_dest_group) {
                 ret = -1;
                 goto end;
@@ -1180,7 +1116,6 @@ static int decode_clock_snapshot_after_event(struct ctf_fs_trace *ctf_fs_trace,
                                              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;
     int ret = 0;
 
@@ -1188,7 +1123,8 @@ static int decode_clock_snapshot_after_event(struct ctf_fs_trace *ctf_fs_trace,
     BT_ASSERT(index_entry);
     BT_ASSERT(index_entry->path);
 
-    ds_file = ctf_fs_ds_file_create(ctf_fs_trace, NULL, index_entry->path, ctf_fs_trace->logger);
+    const auto ds_file = ctf_fs_ds_file_create(ctf_fs_trace, bt2::Stream::Shared {},
+                                               index_entry->path, ctf_fs_trace->logger);
     if (!ds_file) {
         BT_CPPLOGE_APPEND_CAUSE_SPEC(ctf_fs_trace->logger, "Failed to create a ctf_fs_ds_file");
         ret = -1;
@@ -1201,7 +1137,7 @@ static int decode_clock_snapshot_after_event(struct ctf_fs_trace *ctf_fs_trace,
     msg_iter = ctf_msg_iter_create(
         ctf_fs_trace->metadata->tc,
         bt_common_get_page_size(static_cast<int>(ctf_fs_trace->logger.level())) * 8,
-        ctf_fs_ds_file_medops, ds_file, NULL, ctf_fs_trace->logger);
+        ctf_fs_ds_file_medops, ds_file.get(), NULL, ctf_fs_trace->logger);
     if (!msg_iter) {
         /* ctf_msg_iter_create() logs errors. */
         ret = -1;
@@ -1253,9 +1189,6 @@ static int decode_clock_snapshot_after_event(struct ctf_fs_trace *ctf_fs_trace,
     }
 
 end:
-    if (ds_file) {
-        ctf_fs_ds_file_destroy(ds_file);
-    }
     if (msg_iter) {
         ctf_msg_iter_destroy(msg_iter);
     }
@@ -1304,27 +1237,21 @@ static int fix_index_lttng_event_after_packet_bug(struct ctf_fs_trace *trace)
     int ret = 0;
 
     for (const auto& ds_file_group : trace->ds_file_groups) {
-        guint entry_i;
         struct ctf_clock_class *default_cc;
-        struct ctf_fs_ds_index_entry *last_entry;
-        struct ctf_fs_ds_index *index;
 
         BT_ASSERT(ds_file_group);
-        index = ds_file_group->index;
+        const auto index = ds_file_group->index.get();
 
         BT_ASSERT(index);
-        BT_ASSERT(index->entries);
-        BT_ASSERT(index->entries->len > 0);
+        BT_ASSERT(!index->entries.empty());
 
         /*
          * 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 = (ctf_fs_ds_index_entry *) g_ptr_array_index(index->entries, entry_i);
-            next_entry = (ctf_fs_ds_index_entry *) g_ptr_array_index(index->entries, entry_i + 1);
+        for (size_t entry_i = 0; entry_i < index->entries.size() - 1; ++entry_i) {
+            ctf_fs_ds_index_entry *curr_entry = index->entries[entry_i].get();
+            ctf_fs_ds_index_entry *next_entry = index->entries[entry_i + 1].get();
 
             /*
              * 1. Set the current index entry `end` timestamp to
@@ -1338,8 +1265,7 @@ static int fix_index_lttng_event_after_packet_bug(struct ctf_fs_trace *trace)
          * 2. Fix the last entry by decoding the last event of the last
          * packet.
          */
-        last_entry =
-            (ctf_fs_ds_index_entry *) g_ptr_array_index(index->entries, index->entries->len - 1);
+        const auto last_entry = index->entries.back().get();
         BT_ASSERT(last_entry);
 
         BT_ASSERT(ds_file_group->sc->default_clock_class);
@@ -1383,13 +1309,11 @@ static int fix_index_barectf_event_before_packet_bug(struct ctf_fs_trace *trace)
     int ret = 0;
 
     for (const auto& ds_file_group : trace->ds_file_groups) {
-        guint entry_i;
         struct ctf_clock_class *default_cc;
-        struct ctf_fs_ds_index *index = ds_file_group->index;
+        const auto index = ds_file_group->index.get();
 
         BT_ASSERT(index);
-        BT_ASSERT(index->entries);
-        BT_ASSERT(index->entries->len > 0);
+        BT_ASSERT(!index->entries.empty());
 
         BT_ASSERT(ds_file_group->sc->default_clock_class);
         default_cc = ds_file_group->sc->default_clock_class;
@@ -1398,11 +1322,9 @@ static int fix_index_barectf_event_before_packet_bug(struct ctf_fs_trace *trace)
          * 1. Iterate over the index, starting from the second entry
          * (index = 1).
          */
-        for (entry_i = 1; entry_i < index->entries->len; entry_i++) {
-            ctf_fs_ds_index_entry *prev_entry =
-                (ctf_fs_ds_index_entry *) g_ptr_array_index(index->entries, entry_i - 1);
-            ctf_fs_ds_index_entry *curr_entry =
-                (ctf_fs_ds_index_entry *) g_ptr_array_index(index->entries, entry_i);
+        for (size_t entry_i = 1; entry_i < index->entries.size(); ++entry_i) {
+            ctf_fs_ds_index_entry *prev_entry = index->entries[entry_i - 1].get();
+            ctf_fs_ds_index_entry *curr_entry = index->entries[entry_i].get();
             /*
              * 2. Set the current entry `begin` timestamp to the
              * timestamp of the first event of the current packet.
@@ -1450,22 +1372,18 @@ static int fix_index_lttng_crash_quirk(struct ctf_fs_trace *trace)
     int ret = 0;
 
     for (const auto& ds_file_group : trace->ds_file_groups) {
-        guint entry_idx;
         struct ctf_clock_class *default_cc;
-        struct ctf_fs_ds_index *index;
 
         BT_ASSERT(ds_file_group);
-        index = ds_file_group->index;
+        const auto index = ds_file_group->index.get();
 
         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);
+        BT_ASSERT(!index->entries.empty());
 
-        ctf_fs_ds_index_entry *last_entry =
-            (ctf_fs_ds_index_entry *) g_ptr_array_index(index->entries, index->entries->len - 1);
+        const auto last_entry = index->entries.back().get();
         BT_ASSERT(last_entry);
 
         /* 1. Fix the last entry first. */
@@ -1485,11 +1403,9 @@ static int fix_index_lttng_crash_quirk(struct ctf_fs_trace *trace)
         }
 
         /* Iterate over all entries but the last one. */
-        for (entry_idx = 0; entry_idx < index->entries->len - 1; entry_idx++) {
-            ctf_fs_ds_index_entry *curr_entry =
-                (ctf_fs_ds_index_entry *) g_ptr_array_index(index->entries, entry_idx);
-            ctf_fs_ds_index_entry *next_entry =
-                (ctf_fs_ds_index_entry *) g_ptr_array_index(index->entries, entry_idx + 1);
+        for (size_t entry_idx = 0; entry_idx < index->entries.size() - 1; ++entry_idx) {
+            ctf_fs_ds_index_entry *curr_entry = index->entries[entry_idx].get();
+            ctf_fs_ds_index_entry *next_entry = index->entries[entry_idx + 1].get();
 
             if (curr_entry->timestamp_end == 0 && curr_entry->timestamp_begin != 0) {
                 /*
@@ -1716,15 +1632,13 @@ end:
 static bool compare_ds_file_groups_by_first_path(const ctf_fs_ds_file_group::UP& ds_file_group_a,
                                                  const ctf_fs_ds_file_group::UP& ds_file_group_b)
 {
-    BT_ASSERT(ds_file_group_a->ds_file_infos->len > 0);
-    BT_ASSERT(ds_file_group_b->ds_file_infos->len > 0);
+    BT_ASSERT(!ds_file_group_a->ds_file_infos.empty());
+    BT_ASSERT(!ds_file_group_b->ds_file_infos.empty());
 
-    const ctf_fs_ds_file_info *first_ds_file_info_a =
-        (const ctf_fs_ds_file_info *) ds_file_group_a->ds_file_infos->pdata[0];
-    const ctf_fs_ds_file_info *first_ds_file_info_b =
-        (const ctf_fs_ds_file_info *) ds_file_group_b->ds_file_infos->pdata[0];
+    const auto& first_ds_file_info_a = *ds_file_group_a->ds_file_infos[0];
+    const auto& first_ds_file_info_b = *ds_file_group_b->ds_file_infos[0];
 
-    return strcmp(first_ds_file_info_a->path->str, first_ds_file_info_b->path->str) < 0;
+    return first_ds_file_info_a.path < first_ds_file_info_b.path;
 }
 
 static gint compare_strings(gconstpointer p_a, gconstpointer p_b)
@@ -1882,9 +1796,9 @@ static GString *get_stream_instance_unique_name(struct ctf_fs_ds_file_group *ds_
      * 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 = (ctf_fs_ds_file_info *) g_ptr_array_index(ds_file_group->ds_file_infos, 0);
-    g_string_assign(name, ds_file_info->path->str);
+    BT_ASSERT(!ds_file_group->ds_file_infos.empty());
+    ds_file_info = ds_file_group->ds_file_infos[0].get();
+    g_string_assign(name, ds_file_info->path.c_str());
 
 end:
     return name;
@@ -1907,18 +1821,20 @@ static int create_streams_for_trace(struct ctf_fs_trace *ctf_fs_trace)
         BT_ASSERT(ds_file_group->sc->ir_sc);
         BT_ASSERT(ctf_fs_trace->trace);
 
+        bt_stream *stream;
+
         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);
+            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);
+            stream = bt_stream_create_with_id(ds_file_group->sc->ir_sc, ctf_fs_trace->trace,
+                                              (uint64_t) ds_file_group->stream_id);
         }
 
-        if (!ds_file_group->stream) {
+        if (!stream) {
             BT_CPPLOGE_APPEND_CAUSE_SPEC(ctf_fs_trace->logger,
                                          "Cannot create stream for DS file group: "
                                          "addr={}, stream-name=\"{}\"",
@@ -1926,12 +1842,14 @@ static int create_streams_for_trace(struct ctf_fs_trace *ctf_fs_trace)
             goto error;
         }
 
-        ret = bt_stream_set_name(ds_file_group->stream, name->str);
+        ds_file_group->stream = bt2::Stream::Shared::createWithoutRef(stream);
+
+        ret = bt_stream_set_name(ds_file_group->stream->libObjPtr(), name->str);
         if (ret) {
             BT_CPPLOGE_APPEND_CAUSE_SPEC(ctf_fs_trace->logger,
                                          "Cannot set stream's name: "
                                          "addr={}, stream-name=\"{}\"",
-                                         fmt::ptr(ds_file_group->stream), name->str);
+                                         fmt::ptr(ds_file_group->stream->libObjPtr()), name->str);
             goto error;
         }
 
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