Re-organize sources

[babeltrace.git] / src / plugins / ctf / fs-src / data-stream-file.h

diff --git a/src/plugins/ctf/fs-src/data-stream-file.h b/src/plugins/ctf/fs-src/data-stream-file.h
new file mode 100644 (file)
index 0000000..c826a65
--- /dev/null
+++ b/src/plugins/ctf/fs-src/data-stream-file.h
@@ -0,0 +1,116 @@
+#ifndef CTF_FS_DS_FILE_H
+#define CTF_FS_DS_FILE_H
+
+/*
+ * Copyright 2016 - Philippe Proulx <pproulx@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 <stdio.h>
+#include <stdbool.h>
+#include <glib.h>
+#include "common/babeltrace.h"
+#include <babeltrace2/babeltrace.h>
+
+#include "../common/msg-iter/msg-iter.h"
+#include "lttng-index.h"
+
+struct ctf_fs_component;
+struct ctf_fs_file;
+struct ctf_fs_trace;
+struct ctf_fs_ds_file;
+
+struct ctf_fs_ds_file_info {
+       /* Owned by this. */
+       GString *path;
+
+       /* Guaranteed to be set, as opposed to the index. */
+       int64_t begin_ns;
+};
+
+struct ctf_fs_metadata;
+
+struct ctf_fs_ds_file {
+       /* Weak */
+       struct ctf_fs_metadata *metadata;
+
+       /* Weak */
+       bt_self_message_iterator *pc_msg_iter;
+
+       /* Owned by this */
+       struct ctf_fs_file *file;
+
+       /* Owned by this */
+       bt_stream *stream;
+
+       /* Weak */
+       struct bt_msg_iter *msg_iter;
+
+       void *mmap_addr;
+
+       /*
+        * Max length of chunk to mmap() when updating the current mapping.
+        * This value must be page-aligned.
+        */
+       size_t mmap_max_len;
+
+       /* Length of the current mapping. Never exceeds the file's length. */
+       size_t mmap_len;
+
+       /* Offset in the file where the current mapping starts. */
+       off_t mmap_offset;
+
+       /*
+        * Offset, in the current mapping, of the address to return on the next
+        * request.
+        */
+       off_t request_offset;
+
+       bool end_reached;
+};
+
+BT_HIDDEN
+struct ctf_fs_ds_file *ctf_fs_ds_file_create(
+               struct ctf_fs_trace *ctf_fs_trace,
+               bt_self_message_iterator *pc_msg_iter,
+               struct bt_msg_iter *msg_iter,
+               bt_stream *stream, const char *path);
+
+BT_HIDDEN
+void ctf_fs_ds_file_destroy(struct ctf_fs_ds_file *stream);
+
+BT_HIDDEN
+bt_self_message_iterator_status ctf_fs_ds_file_next(
+               struct ctf_fs_ds_file *ds_file,
+               bt_message **msg);
+
+BT_HIDDEN
+struct ctf_fs_ds_index *ctf_fs_ds_file_build_index(
+               struct ctf_fs_ds_file *ds_file);
+
+BT_HIDDEN
+struct ctf_fs_ds_index *ctf_fs_ds_index_create();
+
+BT_HIDDEN
+void ctf_fs_ds_index_destroy(struct ctf_fs_ds_index *index);
+
+extern struct bt_msg_iter_medium_ops ctf_fs_ds_file_medops;
+
+#endif /* CTF_FS_DS_FILE_H */