ctf.fs: split streams, one per port

[babeltrace.git] / plugins / ctf / fs / fs.h

diff --git a/plugins/ctf/fs/fs.h b/plugins/ctf/fs/fs.h
index 7a67b48abddc021436168254a316098221a72d47..0a34856af8a8000cc08815b36ebec8c6f6f8bbe3 100644 (file)
--- a/plugins/ctf/fs/fs.h
+++ b/plugins/ctf/fs/fs.h
@@ -1,5 +1,5 @@
-#ifndef BABELTRACE_PLUGIN_CTF_FS_INTERNAL_H
-#define BABELTRACE_PLUGIN_CTF_FS_INTERNAL_H
+#ifndef BABELTRACE_PLUGIN_CTF_FS_H
+#define BABELTRACE_PLUGIN_CTF_FS_H
 
 /*
  * BabelTrace - CTF on File System Component
@@ -29,13 +29,14 @@
  */
 
 #include <babeltrace/babeltrace-internal.h>
-#include <babeltrace/plugin/component.h>
+#include <babeltrace/graph/component.h>
+#include "data-stream.h"
 
-#define CTF_FS_COMPONENT_NAME "fs"
 #define CTF_FS_COMPONENT_DESCRIPTION \
        "Component used to read a CTF trace located on a file system."
 
-static bool ctf_fs_debug;
+BT_HIDDEN
+extern bool ctf_fs_debug;
 
 struct ctf_fs_file {
        struct ctf_fs_component *ctf_fs;
@@ -56,36 +57,63 @@ struct ctf_fs_stream {
        struct ctf_fs_file *file;
        struct bt_ctf_stream *stream;
        struct bt_ctf_notif_iter *notif_iter;
+       /* A stream is assumed to be indexed. */
+       struct index index;
        void *mmap_addr;
+       /* Max length of chunk to mmap() when updating the current mapping. */
+       size_t mmap_max_len;
+       /* Length of the current mapping. */
        size_t mmap_len;
+       /* Length of the current mapping which *exists* in the backing file. */
+       size_t mmap_valid_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;
 };
 
-struct ctf_fs_data_stream {
-       GPtrArray *streams;
-};
-
-struct ctf_fs_iterator {
-       int dummy;
+struct ctf_fs_component_options {
 };
 
-struct ctf_fs_component_options {
-       bool opt_dummy : 1;
+struct ctf_fs_port_data {
+       GString *path;
 };
 
 struct ctf_fs_component {
+       struct bt_private_component *priv_comp;
        GString *trace_path;
        FILE *error_fp;
        size_t page_size;
-       struct bt_notification *last_notif;
-       struct ctf_fs_metadata metadata;
-       struct ctf_fs_data_stream data_stream;
        struct ctf_fs_component_options options;
+       struct ctf_fs_metadata *metadata;
+
+       /* Array of struct ctf_fs_port_data *, owned by this */
+       GPtrArray *port_data;
 };
 
 BT_HIDDEN
-enum bt_component_status ctf_fs_init(struct bt_component *source,
-               struct bt_value *params);
+enum bt_component_status ctf_fs_init(struct bt_private_component *source,
+               struct bt_value *params, void *init_method_data);
+
+BT_HIDDEN
+void ctf_fs_finalize(struct bt_private_component *component);
+
+BT_HIDDEN
+enum bt_notification_iterator_status ctf_fs_iterator_init(
+               struct bt_private_notification_iterator *it,
+               struct bt_private_port *port);
+
+void ctf_fs_iterator_finalize(struct bt_private_notification_iterator *it);
+
+struct bt_notification_iterator_next_return ctf_fs_iterator_next(
+               struct bt_private_notification_iterator *iterator);
+
+BT_HIDDEN
+struct bt_value *ctf_fs_query(struct bt_component_class *comp_class,
+               const char *object, struct bt_value *params);
 
-#endif /* BABELTRACE_PLUGIN_CTF_FS_INTERNAL_H */
+#endif /* BABELTRACE_PLUGIN_CTF_FS_H */