#include <inttypes.h>
#include <sys/mman.h>
#include <babeltrace/ctf-ir/stream.h>
+#include <babeltrace/plugin/notification/iterator.h>
+#include "file.h"
+#include "metadata.h"
+#include "../common/notif-iter/notif-iter.h"
+#include <assert.h>
#define PRINT_ERR_STREAM ctf_fs->error_fp
#define PRINT_PREFIX "ctf-fs-data-stream"
#include "print.h"
-#include "file.h"
-#include "metadata.h"
-#include "../common/notif-iter/notif-iter.h"
-
-static void ctf_fs_stream_destroy(struct ctf_fs_stream *stream)
+BT_HIDDEN
+void ctf_fs_stream_destroy(struct ctf_fs_stream *stream)
{
if (stream->file) {
ctf_fs_file_destroy(stream->file);
/* Map new region */
stream->mmap_addr = mmap((void *) 0, stream->mmap_len,
- PROT_READ, MAP_PRIVATE, fileno(stream->file->fp),
- stream->mmap_offset);
+ PROT_READ, MAP_PRIVATE, fileno(stream->file->fp),
+ stream->mmap_offset);
if (stream->mmap_addr == MAP_FAILED) {
PERR("Cannot memory-map address (size %zu) of file \"%s\" (%p) at offset %zu: %s\n",
- stream->mmap_len, stream->file->path->str,
- stream->file->fp, stream->mmap_offset,
- strerror(errno));
+ stream->mmap_len, stream->file->path->str,
+ stream->file->fp, stream->mmap_offset,
+ strerror(errno));
goto error;
}
goto end;
-
error:
stream_munmap(stream);
ret = -1;
-
end:
return ret;
}
.get_stream = medop_get_stream,
};
-static struct ctf_fs_stream *ctf_fs_stream_create(
+BT_HIDDEN
+struct ctf_fs_stream *ctf_fs_stream_create(
struct ctf_fs_component *ctf_fs, struct ctf_fs_file *file)
{
struct ctf_fs_stream *stream = g_new0(struct ctf_fs_stream, 1);
stream->file = file;
stream->notif_iter = bt_ctf_notif_iter_create(ctf_fs->metadata.trace,
- 12, medops, stream, ctf_fs->error_fp);
+ ctf_fs->page_size, medops, stream, ctf_fs->error_fp);
if (!stream->notif_iter) {
goto error;
}
- stream->mmap_len = ctf_fs->page_size;
-
+ stream->mmap_len = ctf_fs->page_size * 2048;
goto end;
-
error:
- /* Do not touch borrowed file */
+ /* Do not touch "borrowed" file. */
stream->file = NULL;
ctf_fs_stream_destroy(stream);
stream = NULL;
-
end:
return stream;
}
-int ctf_fs_data_stream_open_streams(struct ctf_fs_component *ctf_fs)
-{
- int ret = 0;
- GError *error = NULL;
- GDir *dir = g_dir_open(ctf_fs->trace_path->str, 0, &error);
- const char *name;
-
- 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) == 0) {
- /* 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(file->path, ctf_fs->trace_path->str);
- g_string_append(file->path, "/");
- g_string_append(file->path, 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 */
- stream = ctf_fs_stream_create(ctf_fs, file);
- if (!stream) {
- ctf_fs_file_destroy(file);
- goto error;
- }
-
- /* Append file to the array of files */
- g_ptr_array_add(ctf_fs->data_stream.streams, stream);
- }
-
- goto end;
-
-error:
- ret = -1;
-
-end:
- if (dir) {
- g_dir_close(dir);
- dir = NULL;
- }
-
- if (error) {
- g_error_free(error);
- }
-
- return ret;
-}
-
-int ctf_fs_data_stream_init(struct ctf_fs_component *ctf_fs,
- struct ctf_fs_data_stream *data_stream)
-{
- int ret = 0;
-
- data_stream->streams = g_ptr_array_new_with_free_func(
- (GDestroyNotify) ctf_fs_stream_destroy);
- if (!data_stream->streams) {
- PERR("Cannot allocate array of streams\n");
- goto error;
- }
-
- goto end;
-
-error:
- ret = -1;
-
-end:
- return ret;
-}
-
-void ctf_fs_data_stream_deinit(struct ctf_fs_data_stream *data_stream)
-{
- g_ptr_array_free(data_stream->streams, TRUE);
-}
-
-int ctf_fs_data_stream_get_next_notification(
+enum bt_notification_iterator_status ctf_fs_data_stream_get_next_notification(
struct ctf_fs_component *ctf_fs,
- struct bt_ctf_notif_iter_notif **notification)
+ struct bt_notification **notification)
{
- int ret = 0;
- struct ctf_fs_stream *stream = g_ptr_array_index(
- ctf_fs->data_stream.streams, 0);
enum bt_ctf_notif_iter_status status;
+ enum bt_notification_iterator_status ret;
+ /* FIXME, only iterating on one stream for the moment. */
+ struct ctf_fs_stream *stream = g_ptr_array_index(ctf_fs->streams, 0);
- status = bt_ctf_notif_iter_get_next_notification(
- stream->notif_iter, notification);
+ if (stream->end_reached) {
+ status = BT_CTF_NOTIF_ITER_STATUS_EOF;
+ goto end;
+ }
+
+ status = bt_ctf_notif_iter_get_next_notification(stream->notif_iter,
+ notification);
if (status != BT_CTF_NOTIF_ITER_STATUS_OK &&
status != BT_CTF_NOTIF_ITER_STATUS_EOF) {
- goto error;
+ goto end;
}
+
+ /* Should be handled in bt_ctf_notif_iter_get_next_notification. */
if (status == BT_CTF_NOTIF_ITER_STATUS_EOF) {
- *notification = NULL;
+ *notification = bt_notification_stream_end_create(
+ stream->stream);
+ if (!*notification) {
+ status = BT_CTF_NOTIF_ITER_STATUS_ERROR;
+ }
+ status = BT_CTF_NOTIF_ITER_STATUS_OK;
+ stream->end_reached = true;
}
-
- goto end;
-
-error:
- ret = -1;
-
end:
+ switch (status) {
+ case BT_CTF_NOTIF_ITER_STATUS_EOF:
+ ret = BT_NOTIFICATION_ITERATOR_STATUS_END;
+ break;
+ case BT_CTF_NOTIF_ITER_STATUS_OK:
+ ret = BT_NOTIFICATION_ITERATOR_STATUS_OK;
+ break;
+ case BT_CTF_NOTIF_ITER_STATUS_AGAIN:
+ /*
+ * Should not make it this far as this is medium-specific;
+ * there is nothing for the user to do and it should have been
+ * handled upstream.
+ */
+ assert(0);
+ case BT_CTF_NOTIF_ITER_STATUS_INVAL:
+ /* No argument provided by the user, so don't return INVAL. */
+ case BT_CTF_NOTIF_ITER_STATUS_ERROR:
+ default:
+ ret = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
+ break;
+ }
return ret;
}
projects / babeltrace.git / blobdiff