doc/api/libbabeltrace2/DoxygenLayout.xml: use `topics` tab
[babeltrace.git] / src / plugins / ctf / fs-src / data-stream-file.hpp
index 86cc218b854e7f1e31e5596f049fb21cf80cc576..05a6db13538049d4ab194dd0695e03fa9a3f852e 100644 (file)
@@ -9,16 +9,19 @@
 
 #include <memory>
 #include <string>
+#include <vector>
 
 #include <glib.h>
 #include <stdio.h>
 
 #include <babeltrace2/babeltrace.h>
 
+#include "cpp-common/bt2/trace-ir.hpp"
 #include "cpp-common/bt2c/data-len.hpp"
 #include "cpp-common/bt2c/logging.hpp"
 
 #include "../common/src/msg-iter/msg-iter.hpp"
+#include "file.hpp"
 
 struct ctf_fs_ds_file_info
 {
@@ -32,21 +35,25 @@ struct ctf_fs_ds_file_info
 
 struct ctf_fs_ds_file
 {
+    using UP = std::unique_ptr<ctf_fs_ds_file>;
+
     explicit ctf_fs_ds_file(const bt2c::Logger& parentLogger) :
         logger {parentLogger, "PLUGIN/SRC.CTF.FS/DS"}
     {
     }
 
+    ctf_fs_ds_file(const ctf_fs_ds_file&) = delete;
+    ctf_fs_ds_file& operator=(const ctf_fs_ds_file&) = delete;
+    ~ctf_fs_ds_file();
+
     bt2c::Logger logger;
 
     /* Weak */
     struct ctf_fs_metadata *metadata = nullptr;
 
-    /* Owned by this */
-    struct ctf_fs_file *file = nullptr;
+    ctf_fs_file::UP file;
 
-    /* Owned by this */
-    bt_stream *stream = nullptr;
+    bt2::Stream::Shared stream;
 
     void *mmap_addr = nullptr;
 
@@ -71,15 +78,15 @@ struct ctf_fs_ds_file
 
 struct ctf_fs_ds_index_entry
 {
-    explicit ctf_fs_ds_index_entry(const bt2c::DataLen offsetParam,
-                                   const bt2c::DataLen packetSizeParam) noexcept :
-        offset(offsetParam),
-        packetSize(packetSizeParam)
+    ctf_fs_ds_index_entry(const bt2c::CStringView pathParam, const bt2c::DataLen offsetParam,
+                          const bt2c::DataLen packetSizeParam) noexcept :
+        path {pathParam},
+        offset {offsetParam}, packetSize {packetSizeParam}
     {
     }
 
     /* Weak, belongs to ctf_fs_ds_file_info. */
-    const char *path = nullptr;
+    const char *path;
 
     /* Position of the packet from the beginning of the file. */
     bt2c::DataLen offset;
@@ -102,40 +109,47 @@ struct ctf_fs_ds_index_entry
     /*
      * Packet sequence number, or UINT64_MAX if not present in the index.
      */
-    uint64_t packet_seq_num = 0;
+    uint64_t packet_seq_num = UINT64_MAX;
 };
 
 struct ctf_fs_ds_index
 {
-    /* Array of pointer to struct ctf_fs_ds_index_entry. */
-    GPtrArray *entries = nullptr;
-};
-
-struct ctf_fs_ds_file_group_deleter
-{
-    void operator()(struct ctf_fs_ds_file_group *group) noexcept;
+    std::vector<ctf_fs_ds_index_entry> entries;
 };
 
 struct ctf_fs_ds_file_group
 {
-    using UP = std::unique_ptr<ctf_fs_ds_file_group, ctf_fs_ds_file_group_deleter>;
+    using UP = std::unique_ptr<ctf_fs_ds_file_group>;
+
+    explicit ctf_fs_ds_file_group(struct ctf_fs_trace * const trace,
+                                  ctf_stream_class * const scParam, const uint64_t streamInstanceId,
+                                  ctf_fs_ds_index indexParam) noexcept :
+
+        sc {scParam},
+        stream_id(streamInstanceId), ctf_fs_trace {trace}, index {std::move(indexParam)}
+
+    {
+    }
+
+    /*
+     * Insert ds_file_info in the list of ds_file_infos at the right
+     * place to keep it sorted.
+     */
+    void insert_ds_file_info_sorted(ctf_fs_ds_file_info::UP ds_file_info);
 
     /*
-     * Array of struct ctf_fs_ds_file_info, owned by this.
-     *
      * This is an _ordered_ array of data stream file infos which
      * belong to this group (a single stream instance).
      *
      * You can call ctf_fs_ds_file_create() with one of those paths
      * and the trace IR stream below.
      */
-    GPtrArray *ds_file_infos = nullptr;
+    std::vector<ctf_fs_ds_file_info::UP> ds_file_infos;
 
     /* Owned by this */
     struct ctf_stream_class *sc = nullptr;
 
-    /* Owned by this */
-    bt_stream *stream = nullptr;
+    bt2::Stream::Shared stream;
 
     /* Stream (instance) ID; -1ULL means none */
     uint64_t stream_id = 0;
@@ -143,34 +157,18 @@ struct ctf_fs_ds_file_group
     /* Weak, belongs to component */
     struct ctf_fs_trace *ctf_fs_trace = nullptr;
 
-    /*
-     * Owned by this.
-     */
-    struct ctf_fs_ds_index *index = nullptr;
+    ctf_fs_ds_index index;
 };
 
-struct ctf_fs_ds_file *ctf_fs_ds_file_create(struct ctf_fs_trace *ctf_fs_trace, bt_stream *stream,
-                                             const char *path, const bt2c::Logger& logger);
-
-void ctf_fs_ds_file_destroy(struct ctf_fs_ds_file *stream);
-
-struct ctf_fs_ds_index *ctf_fs_ds_file_build_index(struct ctf_fs_ds_file *ds_file,
-                                                   struct ctf_fs_ds_file_info *ds_file_info,
-                                                   struct ctf_msg_iter *msg_iter);
-
-struct ctf_fs_ds_index *ctf_fs_ds_index_create(const bt2c::Logger& logger);
+ctf_fs_ds_file::UP ctf_fs_ds_file_create(ctf_fs_trace *ctf_fs_trace, bt2::Stream::Shared stream,
+                                         const char *path, const bt2c::Logger& logger);
 
-void ctf_fs_ds_index_destroy(struct ctf_fs_ds_index *index);
-
-void ctf_fs_ds_file_info_destroy(struct ctf_fs_ds_file_info *ds_file_info);
+bt2s::optional<ctf_fs_ds_index> ctf_fs_ds_file_build_index(struct ctf_fs_ds_file *ds_file,
+                                                           struct ctf_fs_ds_file_info *ds_file_info,
+                                                           struct ctf_msg_iter *msg_iter);
 
 ctf_fs_ds_file_info::UP ctf_fs_ds_file_info_create(const char *path, int64_t begin_ns);
 
-ctf_fs_ds_file_group::UP ctf_fs_ds_file_group_create(struct ctf_fs_trace *ctf_fs_trace,
-                                                     struct ctf_stream_class *sc,
-                                                     uint64_t stream_instance_id,
-                                                     struct ctf_fs_ds_index *index);
-
 /*
  * Medium operations to iterate on a single ctf_fs_ds_file.
  *
@@ -188,12 +186,19 @@ extern struct ctf_msg_iter_medium_ops ctf_fs_ds_file_medops;
  */
 extern struct ctf_msg_iter_medium_ops ctf_fs_ds_group_medops;
 
-enum ctf_msg_iter_medium_status ctf_fs_ds_group_medops_data_create(
-    struct ctf_fs_ds_file_group *ds_file_group, bt_self_message_iterator *self_msg_iter,
-    const bt2c::Logger& logger, struct ctf_fs_ds_group_medops_data **out);
+struct ctf_fs_ds_group_medops_data_deleter
+{
+    void operator()(struct ctf_fs_ds_group_medops_data *data) noexcept;
+};
 
-void ctf_fs_ds_group_medops_data_reset(struct ctf_fs_ds_group_medops_data *data);
+using ctf_fs_ds_group_medops_data_up =
+    std::unique_ptr<ctf_fs_ds_group_medops_data, ctf_fs_ds_group_medops_data_deleter>;
+
+enum ctf_msg_iter_medium_status
+ctf_fs_ds_group_medops_data_create(struct ctf_fs_ds_file_group *ds_file_group,
+                                   bt_self_message_iterator *self_msg_iter,
+                                   const bt2c::Logger& logger, ctf_fs_ds_group_medops_data_up& out);
 
-void ctf_fs_ds_group_medops_data_destroy(struct ctf_fs_ds_group_medops_data *data);
+void ctf_fs_ds_group_medops_data_reset(struct ctf_fs_ds_group_medops_data *data);
 
 #endif /* CTF_FS_DS_FILE_H */
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