*/
#include <babeltrace/plugin/plugin-system.h>
+#include <babeltrace/plugin/notification/iterator.h>
#include <glib.h>
#include <assert.h>
-#include "fs-internal.h"
+#include <unistd.h>
+#include "fs.h"
+#include "metadata.h"
+#include "data-stream.h"
+#include "file.h"
+
+#define PRINT_ERR_STREAM ctf_fs->error_fp
+#define PRINT_PREFIX "ctf-fs"
+#include "print.h"
static bool ctf_fs_debug;
static
-struct ctf_fs_component *ctf_fs_create(struct bt_value *params)
+struct bt_notification *ctf_fs_iterator_get(
+ struct bt_notification_iterator *iterator)
+{
+ struct bt_notification *notification = NULL;
+ struct ctf_fs_component *ctf_fs;
+ struct bt_component *component = bt_notification_iterator_get_component(
+ iterator);
+
+ if (!component) {
+ goto end;
+ }
+
+ ctf_fs = bt_component_get_private_data(component);
+ if (!ctf_fs) {
+ goto end;
+ }
+
+ notification = bt_get(ctf_fs->current_notification);
+end:
+ BT_PUT(component);
+ return notification;
+}
+
+static
+enum bt_notification_iterator_status ctf_fs_iterator_next(
+ struct bt_notification_iterator *iterator)
{
- return g_new0(struct ctf_fs_component, 1);
+ enum bt_notification_iterator_status ret;
+ struct bt_notification *notification = NULL;
+ struct ctf_fs_component *ctf_fs;
+ struct bt_component *component = bt_notification_iterator_get_component(
+ iterator);
+
+ if (!component) {
+ ret = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
+ goto end;
+ }
+
+ ctf_fs = bt_component_get_private_data(component);
+ assert(ctf_fs);
+
+ ret = ctf_fs_data_stream_get_next_notification(ctf_fs, ¬ification, 0);
+ if (ret || !notification) {
+ goto end;
+ }
+
+ bt_put(ctf_fs->current_notification);
+ ctf_fs->current_notification = notification;
+end:
+ BT_PUT(component);
+ return ret;
}
static
-void ctf_fs_destroy(void *data)
+void ctf_fs_iterator_destroy_data(struct ctf_fs_iterator *ctf_it)
{
- g_free(data);
+ g_free(ctf_it);
}
-BT_HIDDEN
+static
+void ctf_fs_iterator_destroy(struct bt_notification_iterator *it)
+{
+ void *data = bt_notification_iterator_get_private_data(it);
+
+ ctf_fs_iterator_destroy_data(data);
+}
+
+static
enum bt_component_status ctf_fs_iterator_init(struct bt_component *source,
struct bt_notification_iterator *it)
{
+ struct ctf_fs_iterator *ctf_it;
enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
assert(source && it);
+ ctf_it = g_new0(struct ctf_fs_iterator, 1);
+ if (!ctf_it) {
+ ret = BT_COMPONENT_STATUS_NOMEM;
+ goto end;
+ }
+
+ ret = bt_notification_iterator_set_get_cb(it, ctf_fs_iterator_get);
+ if (ret) {
+ goto error;
+ }
+
+ ret = bt_notification_iterator_set_next_cb(it, ctf_fs_iterator_next);
+ if (ret) {
+ goto error;
+ }
+
+ ret = bt_notification_iterator_set_destroy_cb(it,
+ ctf_fs_iterator_destroy);
+ if (ret) {
+ goto error;
+ }
+
+ ret = bt_notification_iterator_set_private_data(it, ctf_it);
+ if (ret) {
+ goto error;
+ }
+end:
+ return ret;
+error:
+ (void) bt_notification_iterator_set_private_data(it, NULL);
+ ctf_fs_iterator_destroy_data(ctf_it);
return ret;
}
+static
+void ctf_fs_destroy_data(struct ctf_fs_component *component)
+{
+ if (component->trace_path) {
+ g_string_free(component->trace_path, TRUE);
+ }
+
+ ctf_fs_metadata_fini(&component->metadata);
+ BT_PUT(component->current_notification);
+ if (component->streams) {
+ g_ptr_array_free(component->streams, TRUE);
+ }
+ g_free(component);
+}
+
+static
+void ctf_fs_destroy(struct bt_component *component)
+{
+ void *data = bt_component_get_private_data(component);
+
+ ctf_fs_destroy_data(data);
+}
+
+static
+int open_trace_streams(struct ctf_fs_component *ctf_fs)
+{
+ int ret = 0;
+ const char *name;
+ GError *error = NULL;
+ GDir *dir = g_dir_open(ctf_fs->trace_path->str, 0, &error);
+
+ if (!dir) {
+ PERR("Cannot open directory \"%s\": %s (code %d)\n",
+ ctf_fs->trace_path->str, error->message,
+ error->code);
+ goto error;
+ }
+
+ while ((name = g_dir_read_name(dir))) {
+ struct ctf_fs_file *file = NULL;
+ struct ctf_fs_stream *stream = NULL;
+
+ if (!strcmp(name, CTF_FS_METADATA_FILENAME)) {
+ /* Ignore the metadata stream. */
+ PDBG("Ignoring metadata file \"%s\"\n",
+ name);
+ continue;
+ }
+
+ if (name[0] == '.') {
+ PDBG("Ignoring hidden file \"%s\"\n",
+ name);
+ continue;
+ }
+
+ /* Create the file. */
+ file = ctf_fs_file_create(ctf_fs);
+ if (!file) {
+ PERR("Cannot create stream file object\n");
+ goto error;
+ }
+
+ /* Create full path string. */
+ g_string_append_printf(file->path, "%s/%s",
+ ctf_fs->trace_path->str, name);
+ if (!g_file_test(file->path->str, G_FILE_TEST_IS_REGULAR)) {
+ PDBG("Ignoring non-regular file \"%s\"\n", name);
+ ctf_fs_file_destroy(file);
+ continue;
+ }
+
+ /* Open the file. */
+ if (ctf_fs_file_open(ctf_fs, file, "rb")) {
+ ctf_fs_file_destroy(file);
+ goto error;
+ }
+
+ /* Create a private stream; file ownership is passed to it. */
+ stream = ctf_fs_stream_create(ctf_fs, file);
+ if (!stream) {
+ ctf_fs_file_destroy(file);
+ goto error;
+ }
+
+ g_ptr_array_add(ctf_fs->streams, stream);
+ }
+
+ goto end;
+error:
+ ret = -1;
+end:
+ if (dir) {
+ g_dir_close(dir);
+ dir = NULL;
+ }
+ if (error) {
+ g_error_free(error);
+ }
+ return ret;
+}
+
+static
+void stream_destroy(void *stream)
+{
+ ctf_fs_stream_destroy((struct ctf_fs_stream *) stream);
+}
+
+static
+struct ctf_fs_component *ctf_fs_create(struct bt_value *params)
+{
+ struct ctf_fs_component *ctf_fs;
+ struct bt_value *value = NULL;
+ const char *path;
+ enum bt_value_status ret;
+
+ ctf_fs = g_new0(struct ctf_fs_component, 1);
+ if (!ctf_fs) {
+ goto end;
+ }
+
+ /* FIXME: should probably look for a source URI */
+ value = bt_value_map_get(params, "path");
+ if (!value || bt_value_is_null(value) || !bt_value_is_string(value)) {
+ goto error;
+ }
+
+ ret = bt_value_string_get(value, &path);
+ if (ret != BT_VALUE_STATUS_OK) {
+ goto error;
+ }
+
+ ctf_fs->trace_path = g_string_new(path);
+ if (!ctf_fs->trace_path) {
+ goto error;
+ }
+
+ ctf_fs->streams = g_ptr_array_new_with_free_func(stream_destroy);
+ ctf_fs->error_fp = stderr;
+ ctf_fs->page_size = (size_t) getpagesize();
+
+ // FIXME: check error.
+ ctf_fs_metadata_set_trace(ctf_fs);
+
+ ret = open_trace_streams(ctf_fs);
+ if (ret) {
+ goto error;
+ }
+ goto end;
+
+error:
+ ctf_fs_destroy_data(ctf_fs);
+ ctf_fs = NULL;
+end:
+ BT_PUT(value);
+ return ctf_fs;
+}
+
BT_HIDDEN
enum bt_component_status ctf_fs_init(struct bt_component *source,
- struct bt_value *params)
+ struct bt_value *params)
{
struct ctf_fs_component *ctf_fs;
enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
return ret;
error:
(void) bt_component_set_private_data(source, NULL);
- ctf_fs_destroy(ctf_fs);
+ ctf_fs_destroy_data(ctf_fs);
return ret;
}
projects / babeltrace.git / blobdiff