Standardize `!ptr` i/o `ptr == NULL`, `ptr` i/o `ptr != NULL`
[babeltrace.git] / src / plugins / ctf / fs-src / fs.c
index 847450607a61d859aab6366c4028549660a6c68f..e4eb385282ca7dc01916b395ddfe12dbdd6892b6 100644 (file)
  * SOFTWARE.
  */
 
+#define BT_COMP_LOG_SELF_COMP self_comp
+#define BT_LOG_OUTPUT_LEVEL log_level
+#define BT_LOG_TAG "PLUGIN/SRC.CTF.FS"
+#include "plugins/comp-logging.h"
+
 #include "common/common.h"
 #include <babeltrace2/babeltrace.h>
-#include "compat/uuid.h"
+#include "common/uuid.h"
 #include <glib.h>
 #include "common/assert.h"
 #include <inttypes.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"
 
-#define BT_LOG_TAG "PLUGIN/SRC.CTF.FS"
-#include "logging.h"
-
 static
 int msg_iter_data_set_current_ds_file(struct ctf_fs_msg_iter_data *msg_iter_data)
 {
@@ -61,7 +64,8 @@ int msg_iter_data_set_current_ds_file(struct ctf_fs_msg_iter_data *msg_iter_data
                msg_iter_data->pc_msg_iter,
                msg_iter_data->msg_iter,
                msg_iter_data->ds_file_group->stream,
-               ds_file_info->path->str);
+               ds_file_info->path->str,
+               msg_iter_data->log_level);
        if (!msg_iter_data->ds_file) {
                ret = -1;
        }
@@ -100,11 +104,11 @@ void set_msg_iter_emits_stream_beginning_end_messages(
 }
 
 static
-bt_self_message_iterator_status ctf_fs_iterator_next_one(
+bt_component_class_message_iterator_next_method_status ctf_fs_iterator_next_one(
                struct ctf_fs_msg_iter_data *msg_iter_data,
                const bt_message **out_msg)
 {
-       bt_self_message_iterator_status status;
+       bt_component_class_message_iterator_next_method_status status;
 
        BT_ASSERT(msg_iter_data->ds_file);
 
@@ -113,11 +117,11 @@ bt_self_message_iterator_status ctf_fs_iterator_next_one(
 
                status = ctf_fs_ds_file_next(msg_iter_data->ds_file, &msg);
                switch (status) {
-               case BT_SELF_MESSAGE_ITERATOR_STATUS_OK:
+               case BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK:
                        *out_msg = msg;
                        msg = NULL;
                        goto end;
-               case BT_SELF_MESSAGE_ITERATOR_STATUS_END:
+               case BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_END:
                {
                        int ret;
 
@@ -139,7 +143,7 @@ bt_self_message_iterator_status ctf_fs_iterator_next_one(
                         */
                        ret = msg_iter_data_set_current_ds_file(msg_iter_data);
                        if (ret) {
-                               status = BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR;
+                               status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_ERROR;
                                goto end;
                        }
 
@@ -156,20 +160,21 @@ end:
 }
 
 BT_HIDDEN
-bt_self_message_iterator_status ctf_fs_iterator_next(
+bt_component_class_message_iterator_next_method_status ctf_fs_iterator_next(
                bt_self_message_iterator *iterator,
                bt_message_array_const msgs, uint64_t capacity,
                uint64_t *count)
 {
-       bt_self_message_iterator_status status =
-               BT_SELF_MESSAGE_ITERATOR_STATUS_OK;
+       bt_component_class_message_iterator_next_method_status status =
+               BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK;
        struct ctf_fs_msg_iter_data *msg_iter_data =
                bt_self_message_iterator_get_data(iterator);
        uint64_t i = 0;
 
-       while (i < capacity && status == BT_SELF_MESSAGE_ITERATOR_STATUS_OK) {
+       while (i < capacity &&
+                       status == BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK) {
                status = ctf_fs_iterator_next_one(msg_iter_data, &msgs[i]);
-               if (status == BT_SELF_MESSAGE_ITERATOR_STATUS_OK) {
+               if (status == BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK) {
                        i++;
                }
        }
@@ -177,17 +182,17 @@ bt_self_message_iterator_status ctf_fs_iterator_next(
        if (i > 0) {
                /*
                 * Even if ctf_fs_iterator_next_one() returned something
-                * else than BT_SELF_MESSAGE_ITERATOR_STATUS_OK, we
+                * else than BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK, we
                 * accumulated message objects in the output
                 * message array, so we need to return
-                * BT_SELF_MESSAGE_ITERATOR_STATUS_OK so that they are
+                * BT_COMPONENT_CLASS_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.
                 */
                *count = i;
-               status = BT_SELF_MESSAGE_ITERATOR_STATUS_OK;
+               status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK;
        }
 
        return status;
@@ -212,17 +217,17 @@ end:
 }
 
 BT_HIDDEN
-bt_self_message_iterator_status ctf_fs_iterator_seek_beginning(
-               bt_self_message_iterator *it)
+bt_component_class_message_iterator_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_self_message_iterator_status status =
-               BT_SELF_MESSAGE_ITERATOR_STATUS_OK;
+       bt_component_class_message_iterator_seek_beginning_method_status status =
+               BT_COMPONENT_CLASS_MESSAGE_ITERATOR_SEEK_BEGINNING_METHOD_STATUS_OK;
 
        BT_ASSERT(msg_iter_data);
        if (ctf_fs_iterator_reset(msg_iter_data)) {
-               status = BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR;
+               status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_SEEK_BEGINNING_METHOD_STATUS_ERROR;
        }
 
        return status;
@@ -236,46 +241,53 @@ void ctf_fs_iterator_finalize(bt_self_message_iterator *it)
 }
 
 BT_HIDDEN
-bt_self_message_iterator_status ctf_fs_iterator_init(
+bt_component_class_message_iterator_init_method_status ctf_fs_iterator_init(
                bt_self_message_iterator *self_msg_iter,
-               bt_self_component_source *self_comp,
+               bt_self_component_source *self_comp_src,
                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_self_message_iterator_status ret =
-               BT_SELF_MESSAGE_ITERATOR_STATUS_OK;
+       bt_component_class_message_iterator_init_method_status ret =
+               BT_COMPONENT_CLASS_MESSAGE_ITERATOR_INIT_METHOD_STATUS_OK;
+       bt_logging_level log_level;
+       bt_self_component *self_comp;
 
        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;
+       self_comp = port_data->ctf_fs->self_comp;
        msg_iter_data = g_new0(struct ctf_fs_msg_iter_data, 1);
        if (!msg_iter_data) {
-               ret = BT_SELF_MESSAGE_ITERATOR_STATUS_NOMEM;
+               ret = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_INIT_METHOD_STATUS_MEMORY_ERROR;
                goto error;
        }
 
+       msg_iter_data->log_level = log_level;
+       msg_iter_data->self_comp = self_comp;
        msg_iter_data->pc_msg_iter = self_msg_iter;
        msg_iter_data->msg_iter = bt_msg_iter_create(
                port_data->ds_file_group->ctf_fs_trace->metadata->tc,
-               bt_common_get_page_size(BT_LOG_OUTPUT_LEVEL) * 8,
-               ctf_fs_ds_file_medops, NULL, BT_LOG_OUTPUT_LEVEL);
+               bt_common_get_page_size(msg_iter_data->log_level) * 8,
+               ctf_fs_ds_file_medops, NULL, msg_iter_data->log_level,
+               self_comp);
        if (!msg_iter_data->msg_iter) {
-               BT_LOGE_STR("Cannot create a CTF message iterator.");
-               ret = BT_SELF_MESSAGE_ITERATOR_STATUS_NOMEM;
+               BT_COMP_LOGE_STR("Cannot create a CTF message iterator.");
+               ret = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_INIT_METHOD_STATUS_MEMORY_ERROR;
                goto error;
        }
 
        msg_iter_data->ds_file_group = port_data->ds_file_group;
        if (ctf_fs_iterator_reset(msg_iter_data)) {
-               ret = BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR;
+               ret = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_INIT_METHOD_STATUS_ERROR;
                goto error;
        }
 
        bt_self_message_iterator_set_data(self_msg_iter,
                msg_iter_data);
-       if (ret != BT_SELF_MESSAGE_ITERATOR_STATUS_OK) {
+       if (ret != BT_COMPONENT_CLASS_MESSAGE_ITERATOR_INIT_METHOD_STATUS_OK) {
                goto error;
        }
 
@@ -359,7 +371,8 @@ void ctf_fs_trace_destroy_notifier(void *data)
        ctf_fs_trace_destroy(trace);
 }
 
-struct ctf_fs_component *ctf_fs_component_create(void)
+struct ctf_fs_component *ctf_fs_component_create(bt_logging_level log_level,
+               bt_self_component *self_comp)
 {
        struct ctf_fs_component *ctf_fs;
 
@@ -368,6 +381,8 @@ struct ctf_fs_component *ctf_fs_component_create(void)
                goto error;
        }
 
+       ctf_fs->log_level = log_level;
+       ctf_fs->self_comp = self_comp;
        ctf_fs->port_data =
                g_ptr_array_new_with_free_func(port_data_destroy_notifier);
        if (!ctf_fs->port_data) {
@@ -412,9 +427,9 @@ gchar *ctf_fs_make_port_name(struct ctf_fs_ds_file_group *ds_file_group)
 
        /* 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[BABELTRACE_UUID_STR_LEN];
+               char uuid_str[BT_UUID_STR_LEN + 1];
 
-               bt_uuid_unparse(ds_file_group->ctf_fs_trace->metadata->tc->uuid, uuid_str);
+               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);
@@ -449,13 +464,15 @@ int create_one_port_for_trace(struct ctf_fs_component *ctf_fs,
        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 = ctf_fs->self_comp;
 
        port_name = ctf_fs_make_port_name(ds_file_group);
        if (!port_name) {
                goto error;
        }
 
-       BT_LOGI("Creating one port named `%s`", port_name);
+       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);
@@ -466,7 +483,7 @@ int create_one_port_for_trace(struct ctf_fs_component *ctf_fs,
        port_data->ctf_fs = ctf_fs;
        port_data->ds_file_group = ds_file_group;
        ret = bt_self_component_source_add_output_port(
-               ctf_fs->self_comp, port_name, port_data, NULL);
+               ctf_fs->self_comp_src, port_name, port_data, NULL);
        if (ret) {
                goto error;
        }
@@ -479,9 +496,7 @@ error:
        ret = -1;
 
 end:
-       if (port_name) {
-               g_free(port_name);
-       }
+       g_free(port_name);
 
        port_data_destroy(port_data);
        return ret;
@@ -493,6 +508,8 @@ int create_ports_for_trace(struct ctf_fs_component *ctf_fs,
 {
        int ret = 0;
        size_t i;
+       bt_logging_level log_level = ctf_fs_trace->log_level;
+       bt_self_component *self_comp = ctf_fs_trace->self_comp;
 
        /* Create one output port for each stream file group */
        for (i = 0; i < ctf_fs_trace->ds_file_groups->len; i++) {
@@ -502,7 +519,7 @@ int create_ports_for_trace(struct ctf_fs_component *ctf_fs,
                ret = create_one_port_for_trace(ctf_fs, ctf_fs_trace,
                        ds_file_group);
                if (ret) {
-                       BT_LOGE("Cannot create output port.");
+                       BT_COMP_LOGE("Cannot create output port.");
                        goto end;
                }
        }
@@ -718,24 +735,26 @@ int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace,
        struct bt_msg_iter *msg_iter = NULL;
        struct ctf_stream_class *sc = NULL;
        struct bt_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;
 
        msg_iter = bt_msg_iter_create(ctf_fs_trace->metadata->tc,
-               bt_common_get_page_size(BT_LOG_OUTPUT_LEVEL) * 8,
-               ctf_fs_ds_file_medops, NULL, BT_LOG_OUTPUT_LEVEL);
+               bt_common_get_page_size(log_level) * 8,
+               ctf_fs_ds_file_medops, NULL, log_level, self_comp);
        if (!msg_iter) {
-               BT_LOGE_STR("Cannot create a CTF message iterator.");
+               BT_COMP_LOGE_STR("Cannot create a CTF message iterator.");
                goto error;
        }
 
        ds_file = ctf_fs_ds_file_create(ctf_fs_trace, NULL, msg_iter,
-               NULL, path);
+               NULL, path, log_level);
        if (!ds_file) {
                goto error;
        }
 
        ret = bt_msg_iter_get_packet_properties(ds_file->msg_iter, &props);
        if (ret) {
-               BT_LOGE("Cannot get stream file's first packet's header and context fields (`%s`).",
+               BT_COMP_LOGE("Cannot get stream file's first packet's header and context fields (`%s`).",
                        path);
                goto error;
        }
@@ -753,7 +772,7 @@ int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace,
                        sc->default_clock_class->offset_seconds,
                        sc->default_clock_class->offset_cycles, &begin_ns);
                if (ret) {
-                       BT_LOGE("Cannot convert clock cycles to nanoseconds from origin (`%s`).",
+                       BT_COMP_LOGE("Cannot convert clock cycles to nanoseconds from origin (`%s`).",
                                path);
                        goto error;
                }
@@ -761,7 +780,7 @@ int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace,
 
        index = ctf_fs_ds_file_build_index(ds_file);
        if (!index) {
-               BT_LOGW("Failed to index CTF stream file \'%s\'",
+               BT_COMP_LOGW("Failed to index CTF stream file \'%s\'",
                        ds_file->file->path->str);
        }
 
@@ -865,11 +884,13 @@ int create_ds_file_groups(struct ctf_fs_trace *ctf_fs_trace)
        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;
 
        /* Check each file in the path directory, except specific ones */
        dir = g_dir_open(ctf_fs_trace->path->str, 0, &error);
        if (!dir) {
-               BT_LOGE("Cannot open directory `%s`: %s (code %d)",
+               BT_COMP_LOGE("Cannot open directory `%s`: %s (code %d)",
                        ctf_fs_trace->path->str, error->message,
                        error->code);
                goto error;
@@ -878,23 +899,23 @@ 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)) {
+               if (strcmp(basename, CTF_FS_METADATA_FILENAME) == 0) {
                        /* Ignore the metadata stream. */
-                       BT_LOGI("Ignoring metadata file `%s" G_DIR_SEPARATOR_S "%s`",
+                       BT_COMP_LOGI("Ignoring metadata file `%s" G_DIR_SEPARATOR_S "%s`",
                                ctf_fs_trace->path->str, basename);
                        continue;
                }
 
                if (basename[0] == '.') {
-                       BT_LOGI("Ignoring hidden file `%s" G_DIR_SEPARATOR_S "%s`",
+                       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();
+               file = ctf_fs_file_create(log_level, self_comp);
                if (!file) {
-                       BT_LOGE("Cannot create stream file object for file `%s" G_DIR_SEPARATOR_S "%s`",
+                       BT_COMP_LOGE("Cannot create stream file object for file `%s" G_DIR_SEPARATOR_S "%s`",
                                ctf_fs_trace->path->str, basename);
                        goto error;
                }
@@ -903,7 +924,7 @@ int create_ds_file_groups(struct ctf_fs_trace *ctf_fs_trace)
                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_LOGI("Ignoring non-regular file `%s`",
+                       BT_COMP_LOGI("Ignoring non-regular file `%s`",
                                file->path->str);
                        ctf_fs_file_destroy(file);
                        file = NULL;
@@ -912,13 +933,13 @@ int create_ds_file_groups(struct ctf_fs_trace *ctf_fs_trace)
 
                ret = ctf_fs_file_open(file, "rb");
                if (ret) {
-                       BT_LOGE("Cannot open stream file `%s`", file->path->str);
+                       BT_COMP_LOGE("Cannot open stream file `%s`", file->path->str);
                        goto error;
                }
 
                if (file->size == 0) {
                        /* Skip empty stream. */
-                       BT_LOGI("Ignoring empty file `%s`", file->path->str);
+                       BT_COMP_LOGI("Ignoring empty file `%s`", file->path->str);
                        ctf_fs_file_destroy(file);
                        continue;
                }
@@ -926,7 +947,7 @@ int create_ds_file_groups(struct ctf_fs_trace *ctf_fs_trace)
                ret = add_ds_file_to_ds_file_group(ctf_fs_trace,
                        file->path->str);
                if (ret) {
-                       BT_LOGE("Cannot add stream file `%s` to stream file group",
+                       BT_COMP_LOGE("Cannot add stream file `%s` to stream file group",
                                file->path->str);
                        ctf_fs_file_destroy(file);
                        goto error;
@@ -954,16 +975,16 @@ end:
 }
 
 static
-int set_trace_name(bt_trace *trace, const char *name_suffix)
+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_trace_class *tc = bt_trace_borrow_class_const(trace);
        const bt_value *val;
        GString *name;
 
        name = g_string_new(NULL);
        if (!name) {
-               BT_LOGE_STR("Failed to allocate a GString.");
+               BT_COMP_LOGE_STR("Failed to allocate a GString.");
                ret = -1;
                goto end;
        }
@@ -972,8 +993,8 @@ int set_trace_name(bt_trace *trace, const char *name_suffix)
         * Check if we have a trace environment string value named `hostname`.
         * If so, use it as the trace name's prefix.
         */
-       val = bt_trace_class_borrow_environment_entry_value_by_name_const(
-               tc, "hostname");
+       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));
 
@@ -1002,9 +1023,10 @@ end:
 }
 
 static
-struct ctf_fs_trace *ctf_fs_trace_create(bt_self_component_source *self_comp,
+struct ctf_fs_trace *ctf_fs_trace_create(bt_self_component *self_comp,
                const char *path, const char *name,
-               struct ctf_fs_metadata_config *metadata_config)
+               struct ctf_fs_metadata_config *metadata_config,
+               bt_logging_level log_level)
 {
        struct ctf_fs_trace *ctf_fs_trace;
        int ret;
@@ -1014,6 +1036,8 @@ struct ctf_fs_trace *ctf_fs_trace_create(bt_self_component_source *self_comp,
                goto end;
        }
 
+       ctf_fs_trace->log_level = log_level;
+       ctf_fs_trace->self_comp = self_comp;
        ctf_fs_trace->path = g_string_new(path);
        if (!ctf_fs_trace->path) {
                goto error;
@@ -1036,8 +1060,8 @@ struct ctf_fs_trace *ctf_fs_trace_create(bt_self_component_source *self_comp,
                goto error;
        }
 
-       ret = ctf_fs_metadata_set_trace_class(self_comp,
-               ctf_fs_trace, metadata_config);
+       ret = ctf_fs_metadata_set_trace_class(self_comp, ctf_fs_trace,
+               metadata_config);
        if (ret) {
                goto error;
        }
@@ -1051,7 +1075,14 @@ struct ctf_fs_trace *ctf_fs_trace_create(bt_self_component_source *self_comp,
        }
 
        if (ctf_fs_trace->trace) {
-               ret = set_trace_name(ctf_fs_trace->trace, name);
+               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;
                }
@@ -1096,21 +1127,22 @@ end:
 }
 
 static
-int add_trace_path(GList **trace_paths, const char *path)
+int add_trace_path(GList **trace_paths, const char *path,
+               bt_logging_level log_level, bt_self_component *self_comp)
 {
        GString *norm_path = NULL;
        int ret = 0;
 
        norm_path = bt_common_normalize_path(path, NULL);
        if (!norm_path) {
-               BT_LOGE("Failed to normalize path `%s`.", path);
+               BT_COMP_LOGE("Failed to normalize path `%s`.", path);
                ret = -1;
                goto end;
        }
 
        // FIXME: Remove or ifdef for __MINGW32__
        if (strcmp(norm_path->str, "/") == 0) {
-               BT_LOGE("Opening a trace in `/` is not supported.");
+               BT_COMP_LOGE("Opening a trace in `/` is not supported.");
                ret = -1;
                goto end;
        }
@@ -1128,7 +1160,8 @@ end:
 }
 
 static
-int ctf_fs_find_traces(GList **trace_paths, const char *start_path)
+int ctf_fs_find_traces(GList **trace_paths, const char *start_path,
+               bt_logging_level log_level, bt_self_component *self_comp)
 {
        int ret;
        GError *error = NULL;
@@ -1146,7 +1179,8 @@ int ctf_fs_find_traces(GList **trace_paths, const char *start_path)
                 * Stop recursion: a CTF trace cannot contain another
                 * CTF trace.
                 */
-               ret = add_trace_path(trace_paths, start_path);
+               ret = add_trace_path(trace_paths, start_path, log_level,
+                       self_comp);
                goto end;
        }
 
@@ -1159,12 +1193,12 @@ int ctf_fs_find_traces(GList **trace_paths, const char *start_path)
        dir = g_dir_open(start_path, 0, &error);
        if (!dir) {
                if (error->code == G_FILE_ERROR_ACCES) {
-                       BT_LOGI("Cannot open directory `%s`: %s (code %d): continuing",
+                       BT_COMP_LOGI("Cannot open directory `%s`: %s (code %d): continuing",
                                start_path, error->message, error->code);
                        goto end;
                }
 
-               BT_LOGE("Cannot open directory `%s`: %s (code %d)",
+               BT_COMP_LOGE("Cannot open directory `%s`: %s (code %d)",
                        start_path, error->message, error->code);
                ret = -1;
                goto end;
@@ -1179,7 +1213,8 @@ int ctf_fs_find_traces(GList **trace_paths, const char *start_path)
                }
 
                g_string_printf(sub_path, "%s" G_DIR_SEPARATOR_S "%s", start_path, basename);
-               ret = ctf_fs_find_traces(trace_paths, sub_path->str);
+               ret = ctf_fs_find_traces(trace_paths, sub_path->str,
+                       log_level, self_comp);
                g_string_free(sub_path, TRUE);
                if (ret) {
                        goto end;
@@ -1254,7 +1289,7 @@ GList *ctf_fs_create_trace_names(GList *trace_paths, const char *base_path) {
 /* Helper for ctf_fs_component_create_ctf_fs_traces, to handle a single path/root. */
 
 static
-int ctf_fs_component_create_ctf_fs_traces_one_root(bt_self_component_source *self_comp,
+int ctf_fs_component_create_ctf_fs_traces_one_root(
                struct ctf_fs_component *ctf_fs,
                const char *path_param)
 {
@@ -1265,28 +1300,34 @@ int ctf_fs_component_create_ctf_fs_traces_one_root(bt_self_component_source *sel
        GList *trace_names = NULL;
        GList *tp_node;
        GList *tn_node;
+       bt_logging_level log_level = ctf_fs->log_level;
+       bt_self_component *self_comp = ctf_fs->self_comp;
 
        norm_path = bt_common_normalize_path(path_param, NULL);
        if (!norm_path) {
-               BT_LOGE("Failed to normalize path: `%s`.",
+               BT_COMP_LOGE("Failed to normalize path: `%s`.",
                        path_param);
                goto error;
        }
 
-       ret = ctf_fs_find_traces(&trace_paths, norm_path->str);
+       ret = ctf_fs_find_traces(&trace_paths, norm_path->str, log_level,
+               self_comp);
        if (ret) {
                goto error;
        }
 
        if (!trace_paths) {
-               BT_LOGE("No CTF traces recursively found in `%s`.",
+               BT_COMP_LOGE("No CTF traces recursively found in `%s`.",
                        path_param);
+               (void) BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_COMPONENT(
+                       ctf_fs->self_comp,
+                       "No CTF traces recursively found in `%s`.", path_param);
                goto error;
        }
 
        trace_names = ctf_fs_create_trace_names(trace_paths, norm_path->str);
        if (!trace_names) {
-               BT_LOGE("Cannot create trace names from trace paths.");
+               BT_COMP_LOGE("Cannot create trace names from trace paths.");
                goto error;
        }
 
@@ -1298,9 +1339,10 @@ int ctf_fs_component_create_ctf_fs_traces_one_root(bt_self_component_source *sel
 
                ctf_fs_trace = ctf_fs_trace_create(self_comp,
                                trace_path->str, trace_name->str,
-                               &ctf_fs->metadata_config);
+                               &ctf_fs->metadata_config,
+                               log_level);
                if (!ctf_fs_trace) {
-                       BT_LOGE("Cannot create trace for `%s`.",
+                       BT_COMP_LOGE("Cannot create trace for `%s`.",
                                trace_path->str);
                        goto error;
                }
@@ -1492,7 +1534,8 @@ int merge_matching_ctf_fs_ds_file_groups(
                                dest_trace->metadata->tc, src_group->sc->id);
                        BT_ASSERT(sc);
 
-                       index = ctf_fs_ds_index_create();
+                       index = ctf_fs_ds_index_create(dest_trace->log_level,
+                               dest_trace->self_comp);
                        if (!index) {
                                ret = -1;
                                goto end;
@@ -1535,7 +1578,7 @@ int merge_ctf_fs_traces(struct ctf_fs_trace **traces, unsigned int num_traces)
        struct ctf_fs_trace *winner;
        guint i;
        int ret = 0;
-       char uuid_str[BABELTRACE_UUID_STR_LEN];
+       char uuid_str[BT_UUID_STR_LEN + 1];
 
        BT_ASSERT(num_traces >= 2);
 
@@ -1581,7 +1624,7 @@ int merge_ctf_fs_traces(struct ctf_fs_trace **traces, unsigned int num_traces)
        }
 
        /* Use the string representation of the UUID as the trace name. */
-       bt_uuid_unparse(winner->metadata->tc->uuid, uuid_str);
+       bt_uuid_to_str(winner->metadata->tc->uuid, uuid_str);
        g_string_printf(winner->name, "%s", uuid_str);
 
 end:
@@ -1640,7 +1683,7 @@ int merge_traces_with_same_uuid(struct ctf_fs_component *ctf_fs)
 
        /* Clear any NULL slot (traces that got merged in another one) in the array.  */
        for (i = 0; i < traces->len;) {
-               if (g_ptr_array_index(traces, i) == NULL) {
+               if (!g_ptr_array_index(traces, i)) {
                        g_ptr_array_remove_index_fast(traces, i);
                } else {
                        i++;
@@ -1662,9 +1705,10 @@ int ctf_fs_component_create_ctf_fs_traces(bt_self_component_source *self_comp,
 
        for (i = 0; i < bt_value_array_get_size(paths_value); i++) {
                const bt_value *path_value = bt_value_array_borrow_element_by_index_const(paths_value, i);
-               const char *path = bt_value_string_get(path_value);
+               const char *input = bt_value_string_get(path_value);
 
-               ret = ctf_fs_component_create_ctf_fs_traces_one_root(self_comp, ctf_fs, path);
+               ret = ctf_fs_component_create_ctf_fs_traces_one_root(ctf_fs,
+                       input);
                if (ret) {
                        goto end;
                }
@@ -1709,6 +1753,8 @@ 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 =
@@ -1741,7 +1787,7 @@ int create_streams_for_trace(struct ctf_fs_trace *ctf_fs_trace)
                }
 
                if (!ds_file_group->stream) {
-                       BT_LOGE("Cannot create stream for DS file group: "
+                       BT_COMP_LOGE("Cannot create stream for DS file group: "
                                "addr=%p, stream-name=\"%s\"",
                                ds_file_group, name->str);
                        goto error;
@@ -1750,7 +1796,7 @@ int create_streams_for_trace(struct ctf_fs_trace *ctf_fs_trace)
                ret = bt_stream_set_name(ds_file_group->stream,
                        name->str);
                if (ret) {
-                       BT_LOGE("Cannot set stream's name: "
+                       BT_COMP_LOGE("Cannot set stream's name: "
                                "addr=%p, stream-name=\"%s\"",
                                ds_file_group->stream, name->str);
                        goto error;
@@ -1780,31 +1826,34 @@ end:
  */
 
 static
-bool validate_paths_parameter(const bt_value *paths)
+bool validate_inputs_parameter(struct ctf_fs_component *ctf_fs,
+               const bt_value *inputs)
 {
        bool ret;
        bt_value_type type;
        uint64_t i;
+       bt_logging_level log_level = ctf_fs->log_level;
+       bt_self_component *self_comp = ctf_fs->self_comp;
 
-       if (!paths) {
-               BT_LOGE("missing \"paths\" parameter");
+       if (!inputs) {
+               BT_COMP_LOGE("missing \"inputs\" parameter");
                goto error;
        }
 
-       type = bt_value_get_type(paths);
+       type = bt_value_get_type(inputs);
        if (type != BT_VALUE_TYPE_ARRAY) {
-               BT_LOGE("`paths` parameter: expecting array value: type=%s",
+               BT_COMP_LOGE("`inputs` parameter: expecting array value: type=%s",
                        bt_common_value_type_string(type));
                goto error;
        }
 
-       for (i = 0; i < bt_value_array_get_size(paths); i++) {
+       for (i = 0; i < bt_value_array_get_size(inputs); i++) {
                const bt_value *elem;
 
-               elem = bt_value_array_borrow_element_by_index_const(paths, i);
+               elem = bt_value_array_borrow_element_by_index_const(inputs, i);
                type = bt_value_get_type(elem);
                if (type != BT_VALUE_TYPE_STRING) {
-                       BT_LOGE("`paths` parameter: expecting string value: index=%" PRIu64 ", type=%s",
+                       BT_COMP_LOGE("`inputs` parameter: expecting string value: index=%" PRIu64 ", type=%s",
                                i, bt_common_value_type_string(type));
                        goto error;
                }
@@ -1821,13 +1870,15 @@ end:
 }
 
 bool read_src_fs_parameters(const bt_value *params,
-               const bt_value **paths, struct ctf_fs_component *ctf_fs) {
+               const bt_value **inputs, struct ctf_fs_component *ctf_fs) {
        bool ret;
        const bt_value *value;
+       bt_logging_level log_level = ctf_fs->log_level;
+       bt_self_component *self_comp = ctf_fs->self_comp;
 
-       /* paths parameter */
-       *paths = bt_value_map_borrow_entry_value_const(params, "paths");
-       if (!validate_paths_parameter(*paths)) {
+       /* inputs parameter */
+       *inputs = bt_value_map_borrow_entry_value_const(params, "inputs");
+       if (!validate_inputs_parameter(ctf_fs, *inputs)) {
                goto error;
        }
 
@@ -1836,11 +1887,11 @@ bool read_src_fs_parameters(const bt_value *params,
                "clock-class-offset-s");
        if (value) {
                if (!bt_value_is_signed_integer(value)) {
-                       BT_LOGE("clock-class-offset-s must be an integer");
+                       BT_COMP_LOGE("clock-class-offset-s must be an integer");
                        goto error;
                }
                ctf_fs->metadata_config.clock_class_offset_s =
-                       bt_value_signed_integer_get(value);
+                       bt_value_integer_signed_get(value);
        }
 
        /* clock-class-offset-ns parameter */
@@ -1848,11 +1899,11 @@ bool read_src_fs_parameters(const bt_value *params,
                "clock-class-offset-ns");
        if (value) {
                if (!bt_value_is_signed_integer(value)) {
-                       BT_LOGE("clock-class-offset-ns must be an integer");
+                       BT_COMP_LOGE("clock-class-offset-ns must be an integer");
                        goto error;
                }
                ctf_fs->metadata_config.clock_class_offset_ns =
-                       bt_value_signed_integer_get(value);
+                       bt_value_integer_signed_get(value);
        }
 
 
@@ -1868,34 +1919,30 @@ end:
 
 static
 struct ctf_fs_component *ctf_fs_create(
-               bt_self_component_source *self_comp,
+               bt_self_component_source *self_comp_src,
                const bt_value *params)
 {
        struct ctf_fs_component *ctf_fs = NULL;
        guint i;
-       const bt_value *paths_value;
+       const bt_value *inputs_value;
+       bt_self_component *self_comp =
+               bt_self_component_source_as_self_component(self_comp_src);
 
-       ctf_fs = ctf_fs_component_create();
+       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, &paths_value, ctf_fs)) {
+       if (!read_src_fs_parameters(params, &inputs_value, ctf_fs)) {
                goto error;
        }
 
-       bt_self_component_set_data(
-               bt_self_component_source_as_self_component(self_comp),
-               ctf_fs);
-
-       /*
-        * We don't need to get a new reference here because as long as
-        * our private ctf_fs_component object exists, the containing
-        * private component should also exist.
-        */
+       bt_self_component_set_data(self_comp, ctf_fs);
        ctf_fs->self_comp = self_comp;
+       ctf_fs->self_comp_src = self_comp_src;
 
-       if (ctf_fs_component_create_ctf_fs_traces(self_comp, ctf_fs, paths_value)) {
+       if (ctf_fs_component_create_ctf_fs_traces(self_comp_src, ctf_fs, inputs_value)) {
                goto error;
        }
 
@@ -1916,47 +1963,51 @@ struct ctf_fs_component *ctf_fs_create(
 error:
        ctf_fs_destroy(ctf_fs);
        ctf_fs = NULL;
-       bt_self_component_set_data(
-               bt_self_component_source_as_self_component(self_comp),
-               NULL);
+       bt_self_component_set_data(self_comp, NULL);
 
 end:
        return ctf_fs;
 }
 
 BT_HIDDEN
-bt_self_component_status ctf_fs_init(
+bt_component_class_init_method_status ctf_fs_init(
                bt_self_component_source *self_comp,
                const bt_value *params, __attribute__((unused)) void *init_method_data)
 {
        struct ctf_fs_component *ctf_fs;
-       bt_self_component_status ret = BT_SELF_COMPONENT_STATUS_OK;
+       bt_component_class_init_method_status ret =
+               BT_COMPONENT_CLASS_INIT_METHOD_STATUS_OK;
 
        ctf_fs = ctf_fs_create(self_comp, params);
        if (!ctf_fs) {
-               ret = BT_SELF_COMPONENT_STATUS_ERROR;
+               ret = BT_COMPONENT_CLASS_INIT_METHOD_STATUS_ERROR;
        }
 
        return ret;
 }
 
 BT_HIDDEN
-bt_query_status ctf_fs_query(
+bt_component_class_query_method_status ctf_fs_query(
                bt_self_component_class_source *comp_class,
                const bt_query_executor *query_exec,
                const char *object, const bt_value *params,
-               __attribute__((unused)) bt_logging_level log_level,
+               bt_logging_level log_level,
                const bt_value **result)
 {
-       bt_query_status status = BT_QUERY_STATUS_OK;
-
-       if (!strcmp(object, "metadata-info")) {
-               status = metadata_info_query(comp_class, params, result);
-       } else if (!strcmp(object, "trace-info")) {
-               status = trace_info_query(comp_class, params, result);
+       bt_component_class_query_method_status status =
+               BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_OK;
+
+       if (strcmp(object, "metadata-info") == 0) {
+               status = metadata_info_query(comp_class, params, log_level,
+                       result);
+       } else if (strcmp(object, "trace-info") == 0) {
+               status = trace_info_query(comp_class, params, log_level,
+                       result);
+       } else if (!strcmp(object, "support-info")) {
+               status = support_info_query(comp_class, params, log_level, result);
        } else {
                BT_LOGE("Unknown query object `%s`", object);
-               status = BT_QUERY_STATUS_INVALID_OBJECT;
+               status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_INVALID_OBJECT;
                goto end;
        }
 end:
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