lib: rename include dir to babeltrace2
[babeltrace.git] / plugins / ctf / fs-src / fs.c
index 6f02c8de4570a40738c6886173338e4acb64073a..3cee435af0f9a9b74f54fe65ca5e2804b18a3746 100644 (file)
  * SOFTWARE.
  */
 
-#include <babeltrace/common-internal.h>
-#include <babeltrace/babeltrace.h>
-#include <babeltrace/compat/uuid-internal.h>
+#include <babeltrace2/common-internal.h>
+#include <babeltrace2/babeltrace.h>
+#include <babeltrace2/compat/uuid-internal.h>
 #include <plugins-common.h>
 #include <glib.h>
-#include <babeltrace/assert-internal.h>
+#include <babeltrace2/assert-internal.h>
 #include <inttypes.h>
 #include <stdbool.h>
 #include "fs.h"
@@ -399,29 +399,48 @@ void ctf_fs_finalize(bt_self_component_source *component)
                bt_self_component_source_as_self_component(component)));
 }
 
-static
-GString *get_stream_instance_unique_name(
-               struct ctf_fs_ds_file_group *ds_file_group)
+gchar *ctf_fs_make_port_name(struct ctf_fs_ds_file_group *ds_file_group)
 {
-       GString *name;
-       struct ctf_fs_ds_file_info *ds_file_info;
+       GString *name = g_string_new(NULL);
 
-       name = g_string_new(NULL);
-       if (!name) {
-               goto end;
+       /*
+        * The unique port name is generated by concatenating unique identifiers
+        * for:
+        *
+        *   - the trace
+        *   - the stream class
+        *   - the stream
+        */
+
+       /* For the trace, use the uuid if present, else the path. */
+       if (ds_file_group->ctf_fs_trace->metadata->tc->is_uuid_set) {
+               char uuid_str[BABELTRACE_UUID_STR_LEN];
+
+               bt_uuid_unparse(ds_file_group->ctf_fs_trace->metadata->tc->uuid, uuid_str);
+               g_string_assign(name, uuid_str);
+       } else {
+               g_string_assign(name, ds_file_group->ctf_fs_trace->path->str);
        }
 
        /*
-        * If there's more than one stream file in the stream file
-        * group, the first (earliest) stream file's path is used as
-        * the stream's unique name.
+        * For the stream class, use the id if present.  We can omit this field
+        * otherwise, as there will only be a single stream class.
         */
-       BT_ASSERT(ds_file_group->ds_file_infos->len > 0);
-       ds_file_info = g_ptr_array_index(ds_file_group->ds_file_infos, 0);
-       g_string_assign(name, ds_file_info->path->str);
+       if (ds_file_group->sc->id != UINT64_C(-1)) {
+               g_string_append_printf(name, " | %" PRIu64, ds_file_group->sc->id);
+       }
 
-end:
-       return name;
+       /* For the stream, use the id if present, else, use the path. */
+       if (ds_file_group->stream_id != UINT64_C(-1)) {
+               g_string_append_printf(name, " | %" PRIu64, ds_file_group->stream_id);
+       } else {
+               BT_ASSERT(ds_file_group->ds_file_infos->len == 1);
+               struct ctf_fs_ds_file_info *ds_file_info =
+                       g_ptr_array_index(ds_file_group->ds_file_infos, 0);
+               g_string_append_printf(name, " | %s", ds_file_info->path->str);
+       }
+
+       return g_string_free(name, FALSE);
 }
 
 static
@@ -431,14 +450,14 @@ int create_one_port_for_trace(struct ctf_fs_component *ctf_fs,
 {
        int ret = 0;
        struct ctf_fs_port_data *port_data = NULL;
-       GString *port_name = NULL;
+       gchar *port_name;
 
-       port_name = get_stream_instance_unique_name(ds_file_group);
+       port_name = ctf_fs_make_port_name(ds_file_group);
        if (!port_name) {
                goto error;
        }
 
-       BT_LOGD("Creating one port named `%s`", port_name->str);
+       BT_LOGD("Creating one port named `%s`", port_name);
 
        /* Create output port for this file */
        port_data = g_new0(struct ctf_fs_port_data, 1);
@@ -449,7 +468,7 @@ int create_one_port_for_trace(struct ctf_fs_component *ctf_fs,
        port_data->ctf_fs = ctf_fs;
        port_data->ds_file_group = ds_file_group;
        ret = bt_self_component_source_add_output_port(
-               ctf_fs->self_comp, port_name->str, port_data, NULL);
+               ctf_fs->self_comp, port_name, port_data, NULL);
        if (ret) {
                goto error;
        }
@@ -463,7 +482,7 @@ error:
 
 end:
        if (port_name) {
-               g_string_free(port_name, TRUE);
+               g_free(port_name);
        }
 
        port_data_destroy(port_data);
@@ -505,13 +524,12 @@ void ctf_fs_ds_file_info_destroy(struct ctf_fs_ds_file_info *ds_file_info)
                g_string_free(ds_file_info->path, TRUE);
        }
 
-       ctf_fs_ds_index_destroy(ds_file_info->index);
        g_free(ds_file_info);
 }
 
 static
 struct ctf_fs_ds_file_info *ctf_fs_ds_file_info_create(const char *path,
-               int64_t begin_ns, struct ctf_fs_ds_index *index)
+               int64_t begin_ns)
 {
        struct ctf_fs_ds_file_info *ds_file_info;
 
@@ -528,11 +546,8 @@ struct ctf_fs_ds_file_info *ctf_fs_ds_file_info_create(const char *path,
        }
 
        ds_file_info->begin_ns = begin_ns;
-       ds_file_info->index = index;
-       index = NULL;
 
 end:
-       ctf_fs_ds_index_destroy(index);
        return ds_file_info;
 }
 
@@ -547,6 +562,13 @@ void ctf_fs_ds_file_group_destroy(struct ctf_fs_ds_file_group *ds_file_group)
                g_ptr_array_free(ds_file_group->ds_file_infos, TRUE);
        }
 
+       if (ds_file_group->index) {
+               if (ds_file_group->index->entries) {
+                       g_ptr_array_free(ds_file_group->index->entries, TRUE);
+               }
+               g_free(ds_file_group->index);
+       }
+
        bt_stream_put_ref(ds_file_group->stream);
        g_free(ds_file_group);
 }
@@ -555,7 +577,8 @@ static
 struct ctf_fs_ds_file_group *ctf_fs_ds_file_group_create(
                struct ctf_fs_trace *ctf_fs_trace,
                struct ctf_stream_class *sc,
-               uint64_t stream_instance_id)
+               uint64_t stream_instance_id,
+               struct ctf_fs_ds_index *index)
 {
        struct ctf_fs_ds_file_group *ds_file_group;
 
@@ -570,6 +593,8 @@ struct ctf_fs_ds_file_group *ctf_fs_ds_file_group_create(
                goto error;
        }
 
+       ds_file_group->index = index;
+
        ds_file_group->stream_id = stream_instance_id;
        BT_ASSERT(sc);
        ds_file_group->sc = sc;
@@ -578,6 +603,7 @@ struct ctf_fs_ds_file_group *ctf_fs_ds_file_group_create(
 
 error:
        ctf_fs_ds_file_group_destroy(ds_file_group);
+       ctf_fs_ds_index_destroy(index);
        ds_file_group = NULL;
 
 end:
@@ -629,6 +655,26 @@ void ds_file_group_insert_ds_file_info_sorted(
        array_insert(ds_file_group->ds_file_infos, ds_file_info, i);
 }
 
+static
+void ds_file_group_insert_ds_index_entry_sorted(
+       struct ctf_fs_ds_file_group *ds_file_group,
+       struct ctf_fs_ds_index_entry *entry)
+{
+       guint i;
+
+       /* Find the spot where to insert this index entry. */
+       for (i = 0; i < ds_file_group->index->entries->len; i++) {
+               struct ctf_fs_ds_index_entry *other_entry = g_ptr_array_index(
+                       ds_file_group->index->entries, i);
+
+               if (entry->timestamp_begin_ns < other_entry->timestamp_begin_ns) {
+                       break;
+               }
+       }
+
+       array_insert(ds_file_group->index->entries, entry, i);
+}
+
 /*
  * Create a new ds_file_info using the provided path, begin_ns and index, then
  * add it to ds_file_group's list of ds_file_infos.
@@ -637,15 +683,12 @@ void ds_file_group_insert_ds_file_info_sorted(
 static
 int ctf_fs_ds_file_group_add_ds_file_info(
                struct ctf_fs_ds_file_group *ds_file_group,
-               const char *path, int64_t begin_ns,
-               struct ctf_fs_ds_index *index)
+               const char *path, int64_t begin_ns)
 {
        struct ctf_fs_ds_file_info *ds_file_info;
        int ret = 0;
 
-       /* Onwership of index is transferred. */
-       ds_file_info = ctf_fs_ds_file_info_create(path, begin_ns, index);
-       index = NULL;
+       ds_file_info = ctf_fs_ds_file_info_create(path, begin_ns);
        if (!ds_file_info) {
                goto error;
        }
@@ -657,7 +700,6 @@ int ctf_fs_ds_file_group_add_ds_file_info(
 
 error:
        ctf_fs_ds_file_info_destroy(ds_file_info);
-       ctf_fs_ds_index_destroy(index);
        ret = -1;
 end:
        return ret;
@@ -742,15 +784,16 @@ int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace,
                 * group.
                 */
                ds_file_group = ctf_fs_ds_file_group_create(ctf_fs_trace,
-                       sc, UINT64_C(-1));
+                       sc, UINT64_C(-1), index);
+               /* Ownership of index is transferred. */
+               index = NULL;
+
                if (!ds_file_group) {
                        goto error;
                }
 
                ret = ctf_fs_ds_file_group_add_ds_file_info(ds_file_group,
-                       path, begin_ns, index);
-               /* Ownership of index is transferred. */
-               index = NULL;
+                       path, begin_ns);
                if (ret) {
                        goto error;
                }
@@ -778,7 +821,9 @@ int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace,
 
        if (!ds_file_group) {
                ds_file_group = ctf_fs_ds_file_group_create(ctf_fs_trace,
-                       sc, stream_instance_id);
+                       sc, stream_instance_id, index);
+               /* Ownership of index is transferred. */
+               index = NULL;
                if (!ds_file_group) {
                        goto error;
                }
@@ -787,8 +832,7 @@ int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace,
        }
 
        ret = ctf_fs_ds_file_group_add_ds_file_info(ds_file_group, path,
-               begin_ns, index);
-       index = NULL;
+               begin_ns);
        if (ret) {
                goto error;
        }
@@ -1368,12 +1412,25 @@ void merge_ctf_fs_ds_file_groups(struct ctf_fs_ds_file_group *dest, struct ctf_f
 
                ds_file_group_insert_ds_file_info_sorted(dest, ds_file_info);
        }
-}
 
+       /* Merge both indexes. */
+       for (i = 0; i < src->index->entries->len; i++) {
+               struct ctf_fs_ds_index_entry *entry = g_ptr_array_index(
+                       src->index->entries, i);
+
+               /*
+                * Ownership of the ctf_fs_ds_index_entry is transferred to
+                * dest.
+                */
+               g_ptr_array_index(src->index->entries, i) = NULL;
+
+               ds_file_group_insert_ds_index_entry_sorted(dest, entry);
+       }
+}
 /* Merge src_trace's data stream file groups into dest_trace's. */
 
 static
-void merge_matching_ctf_fs_ds_file_groups(
+int merge_matching_ctf_fs_ds_file_groups(
                struct ctf_fs_trace *dest_trace,
                struct ctf_fs_trace *src_trace)
 {
@@ -1381,6 +1438,7 @@ void merge_matching_ctf_fs_ds_file_groups(
        GPtrArray *dest = dest_trace->ds_file_groups;
        GPtrArray *src = src_trace->ds_file_groups;
        guint s_i;
+       int ret = 0;
 
        /*
         * Save the initial length of dest: we only want to check against the
@@ -1423,17 +1481,32 @@ void merge_matching_ctf_fs_ds_file_groups(
 
                /*
                 * Didn't find a friend in dest to merge our src_group into?
-                * Create a new empty one.
+                * Create a new empty one. This can happen if a stream was
+                * active in the source trace chunk but not in the destination
+                * trace chunk.
                 */
                if (!dest_group) {
                        struct ctf_stream_class *sc;
+                       struct ctf_fs_ds_index *index;
 
                        sc = ctf_trace_class_borrow_stream_class_by_id(
                                dest_trace->metadata->tc, src_group->sc->id);
                        BT_ASSERT(sc);
 
+                       index = ctf_fs_ds_index_create();
+                       if (!index) {
+                               ret = -1;
+                               goto end;
+                       }
+
                        dest_group = ctf_fs_ds_file_group_create(dest_trace, sc,
-                               src_group->stream_id);
+                               src_group->stream_id, index);
+                       /* Ownership of index is transferred. */
+                       index = NULL;
+                       if (!dest_group) {
+                               ret = -1;
+                               goto end;
+                       }
 
                        g_ptr_array_add(dest_trace->ds_file_groups, dest_group);
                }
@@ -1441,6 +1514,9 @@ void merge_matching_ctf_fs_ds_file_groups(
                BT_ASSERT(dest_group);
                merge_ctf_fs_ds_file_groups(dest_group, src_group);
        }
+
+end:
+       return ret;
 }
 
 /*
@@ -1454,11 +1530,12 @@ void merge_matching_ctf_fs_ds_file_groups(
  */
 
 static
-void merge_ctf_fs_traces(struct ctf_fs_trace **traces, unsigned int num_traces)
+int merge_ctf_fs_traces(struct ctf_fs_trace **traces, unsigned int num_traces)
 {
        unsigned int winner_count;
        struct ctf_fs_trace *winner;
        guint i;
+       int ret = 0;
        char uuid_str[BABELTRACE_UUID_STR_LEN];
 
        BT_ASSERT(num_traces >= 2);
@@ -1494,7 +1571,10 @@ void merge_ctf_fs_traces(struct ctf_fs_trace **traces, unsigned int num_traces)
                }
 
                /* Merge trace's data stream file groups into winner's. */
-               merge_matching_ctf_fs_ds_file_groups(winner, trace);
+               ret = merge_matching_ctf_fs_ds_file_groups(winner, trace);
+               if (ret) {
+                       goto end;
+               }
 
                /* Free the trace that got merged into winner, clear the slot in the array. */
                ctf_fs_trace_destroy(trace);
@@ -1504,6 +1584,9 @@ void merge_ctf_fs_traces(struct ctf_fs_trace **traces, unsigned int num_traces)
        /* Use the string representation of the UUID as the trace name. */
        bt_uuid_unparse(winner->metadata->tc->uuid, uuid_str);
        g_string_printf(winner->name, "%s", uuid_str);
+
+end:
+       return ret;
 }
 
 /*
@@ -1512,12 +1595,13 @@ void merge_ctf_fs_traces(struct ctf_fs_trace **traces, unsigned int num_traces)
  */
 
 static
-void merge_traces_with_same_uuid(struct ctf_fs_component *ctf_fs)
+int merge_traces_with_same_uuid(struct ctf_fs_component *ctf_fs)
 {
        GPtrArray *traces = ctf_fs->traces;
        guint range_start_idx = 0;
        unsigned int num_traces = 0;
        guint i;
+       int ret = 0;
 
        /* Sort the traces by uuid, then collapse traces with the same uuid in a single one. */
        g_ptr_array_sort(traces, sort_traces_by_uuid);
@@ -1545,7 +1629,10 @@ void merge_traces_with_same_uuid(struct ctf_fs_component *ctf_fs)
                range_len = range_end_exc_idx - range_start_idx;
                if (range_len > 1) {
                        struct ctf_fs_trace **range_start = (struct ctf_fs_trace **) &traces->pdata[range_start_idx];
-                       merge_ctf_fs_traces(range_start, range_len);
+                       ret = merge_ctf_fs_traces(range_start, range_len);
+                       if (ret) {
+                               goto end;
+                       }
                }
 
                num_traces++;
@@ -1562,6 +1649,9 @@ void merge_traces_with_same_uuid(struct ctf_fs_component *ctf_fs)
        }
 
        BT_ASSERT(num_traces == traces->len);
+
+end:
+       return ret;
 }
 
 int ctf_fs_component_create_ctf_fs_traces(bt_self_component_source *self_comp,
@@ -1581,12 +1671,37 @@ int ctf_fs_component_create_ctf_fs_traces(bt_self_component_source *self_comp,
                }
        }
 
-       merge_traces_with_same_uuid(ctf_fs);
+       ret = merge_traces_with_same_uuid(ctf_fs);
 
 end:
        return ret;
 }
 
+static
+GString *get_stream_instance_unique_name(
+               struct ctf_fs_ds_file_group *ds_file_group)
+{
+       GString *name;
+       struct ctf_fs_ds_file_info *ds_file_info;
+
+       name = g_string_new(NULL);
+       if (!name) {
+               goto end;
+       }
+
+       /*
+        * If there's more than one stream file in the stream file
+        * group, the first (earliest) stream file's path is used as
+        * the stream's unique name.
+        */
+       BT_ASSERT(ds_file_group->ds_file_infos->len > 0);
+       ds_file_info = g_ptr_array_index(ds_file_group->ds_file_infos, 0);
+       g_string_assign(name, ds_file_info->path->str);
+
+end:
+       return name;
+}
+
 /* Create the IR stream objects for ctf_fs_trace. */
 
 static
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