lib: graph: add "self" and some "private" APIs
[babeltrace.git] / plugins / text / dmesg / dmesg.c
index 6ea9af0de14aae05c7f814654f20155258eea0e5..36efc583ed6a886e78dd93c8b5ed9ba583455403 100644 (file)
@@ -1,6 +1,6 @@
 /*
  * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
- * Copyright 2017 Philippe Proulx <jeremie.galarneau@efficios.com>
+ * Copyright 2017 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
@@ -45,7 +45,7 @@ struct dmesg_component;
 
 struct dmesg_notif_iter {
        struct dmesg_component *dmesg_comp;
-       struct bt_private_connection_private_notification_iterator *pc_notif_iter; /* Weak */
+       struct bt_self_notification_iterator *pc_notif_iter; /* Weak */
        char *linebuf;
        size_t linebuf_len;
        FILE *fp;
@@ -163,7 +163,7 @@ int create_meta(struct dmesg_component *dmesg_comp, bool has_ts)
 
                ret = bt_private_stream_class_set_default_clock_class(
                        dmesg_comp->stream_class,
-                       bt_clock_class_borrow_from_private(
+                       bt_private_clock_class_borrow_clock_class(
                                dmesg_comp->clock_class));
                if (ret) {
                        BT_LOGE_STR("Cannot set stream class's default clock class.");
@@ -351,19 +351,21 @@ void destroy_dmesg_component(struct dmesg_component *dmesg_comp)
 }
 
 static
-enum bt_component_status create_port(struct bt_private_component *priv_comp)
+enum bt_self_component_status create_port(
+               struct bt_self_component_source *self_comp)
 {
-       return bt_private_component_source_add_output_port(priv_comp,
+       return bt_self_component_source_add_output_port(self_comp,
                "out", NULL, NULL);
 }
 
 BT_HIDDEN
-enum bt_component_status dmesg_init(struct bt_private_component *priv_comp,
+enum bt_self_component_status dmesg_init(
+               struct bt_self_component_source *self_comp,
                struct bt_value *params, void *init_method_data)
 {
        int ret = 0;
        struct dmesg_component *dmesg_comp = g_new0(struct dmesg_component, 1);
-       enum bt_component_status status = BT_COMPONENT_STATUS_OK;
+       enum bt_self_component_status status = BT_SELF_COMPONENT_STATUS_OK;
 
        if (!dmesg_comp) {
                BT_LOGE_STR("Failed to allocate one dmesg component structure.");
@@ -378,7 +380,7 @@ enum bt_component_status dmesg_init(struct bt_private_component *priv_comp,
 
        ret = handle_params(dmesg_comp, params);
        if (ret) {
-               BT_LOGE("Invalid parameters: comp-addr=%p", priv_comp);
+               BT_LOGE("Invalid parameters: comp-addr=%p", self_comp);
                goto error;
        }
 
@@ -386,25 +388,29 @@ enum bt_component_status dmesg_init(struct bt_private_component *priv_comp,
                        !g_file_test(dmesg_comp->params.path->str,
                        G_FILE_TEST_IS_REGULAR)) {
                BT_LOGE("Input path is not a regular file: "
-                       "comp-addr=%p, path=\"%s\"", priv_comp,
+                       "comp-addr=%p, path=\"%s\"", self_comp,
                        dmesg_comp->params.path->str);
                goto error;
        }
 
-       status = create_port(priv_comp);
-       if (status != BT_COMPONENT_STATUS_OK) {
+       status = create_port(self_comp);
+       if (status != BT_SELF_COMPONENT_STATUS_OK) {
                goto error;
        }
 
-       (void) bt_private_component_set_user_data(priv_comp, dmesg_comp);
+       bt_self_component_set_data(
+               bt_self_component_source_borrow_self_component(self_comp),
+               dmesg_comp);
        goto end;
 
 error:
        destroy_dmesg_component(dmesg_comp);
-       (void) bt_private_component_set_user_data(priv_comp, NULL);
+       bt_self_component_set_data(
+               bt_self_component_source_borrow_self_component(self_comp),
+               NULL);
 
        if (status >= 0) {
-               status = BT_COMPONENT_STATUS_ERROR;
+               status = BT_SELF_COMPONENT_STATUS_ERROR;
        }
 
 end:
@@ -412,11 +418,10 @@ end:
 }
 
 BT_HIDDEN
-void dmesg_finalize(struct bt_private_component *priv_comp)
+void dmesg_finalize(struct bt_self_component_source *self_comp)
 {
-       void *data = bt_private_component_get_user_data(priv_comp);
-
-       destroy_dmesg_component(data);
+       destroy_dmesg_component(bt_self_component_get_data(
+               bt_self_component_source_borrow_self_component(self_comp)));
 }
 
 static
@@ -618,29 +623,27 @@ void destroy_dmesg_notif_iter(struct dmesg_notif_iter *dmesg_notif_iter)
 }
 
 BT_HIDDEN
-enum bt_notification_iterator_status dmesg_notif_iter_init(
-               struct bt_private_connection_private_notification_iterator *priv_notif_iter,
-               struct bt_private_port *priv_port)
+enum bt_self_notification_iterator_status dmesg_notif_iter_init(
+               struct bt_self_notification_iterator *self_notif_iter,
+               struct bt_self_component_source *self_comp,
+               struct bt_self_component_port_output *self_port)
 {
-       struct bt_private_component *priv_comp = NULL;
        struct dmesg_component *dmesg_comp;
        struct dmesg_notif_iter *dmesg_notif_iter =
                g_new0(struct dmesg_notif_iter, 1);
-       enum bt_notification_iterator_status status =
-               BT_NOTIFICATION_ITERATOR_STATUS_OK;
+       enum bt_self_notification_iterator_status status =
+               BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK;
 
        if (!dmesg_notif_iter) {
                BT_LOGE_STR("Failed to allocate on dmesg notification iterator structure.");
                goto error;
        }
 
-       priv_comp = bt_private_connection_private_notification_iterator_get_private_component(
-               priv_notif_iter);
-       BT_ASSERT(priv_comp);
-       dmesg_comp = bt_private_component_get_user_data(priv_comp);
+       dmesg_comp = bt_self_component_get_data(
+               bt_self_component_source_borrow_self_component(self_comp));
        BT_ASSERT(dmesg_comp);
        dmesg_notif_iter->dmesg_comp = dmesg_comp;
-       dmesg_notif_iter->pc_notif_iter = priv_notif_iter;
+       dmesg_notif_iter->pc_notif_iter = self_notif_iter;
 
        if (dmesg_comp->params.read_from_stdin) {
                dmesg_notif_iter->fp = stdin;
@@ -653,47 +656,45 @@ enum bt_notification_iterator_status dmesg_notif_iter_init(
                }
        }
 
-       (void) bt_private_connection_private_notification_iterator_set_user_data(priv_notif_iter,
+       bt_self_notification_iterator_set_data(self_notif_iter,
                dmesg_notif_iter);
        goto end;
 
 error:
        destroy_dmesg_notif_iter(dmesg_notif_iter);
-       (void) bt_private_connection_private_notification_iterator_set_user_data(priv_notif_iter,
-               NULL);
+       bt_self_notification_iterator_set_data(self_notif_iter, NULL);
        if (status >= 0) {
-               status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
+               status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_ERROR;
        }
 
 end:
-       bt_object_put_ref(priv_comp);
        return status;
 }
 
 BT_HIDDEN
 void dmesg_notif_iter_finalize(
-               struct bt_private_connection_private_notification_iterator *priv_notif_iter)
+               struct bt_self_notification_iterator *priv_notif_iter)
 {
-       destroy_dmesg_notif_iter(bt_private_connection_private_notification_iterator_get_user_data(
+       destroy_dmesg_notif_iter(bt_self_notification_iterator_get_data(
                priv_notif_iter));
 }
 
 static
-enum bt_notification_iterator_status dmesg_notif_iter_next_one(
+enum bt_self_notification_iterator_status dmesg_notif_iter_next_one(
                struct dmesg_notif_iter *dmesg_notif_iter,
                struct bt_private_notification **notif)
 {
        ssize_t len;
        struct dmesg_component *dmesg_comp;
-       enum bt_notification_iterator_status status =
-               BT_NOTIFICATION_ITERATOR_STATUS_OK;
+       enum bt_self_notification_iterator_status status =
+               BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK;
 
        BT_ASSERT(dmesg_notif_iter);
        dmesg_comp = dmesg_notif_iter->dmesg_comp;
        BT_ASSERT(dmesg_comp);
 
        if (dmesg_notif_iter->state == STATE_DONE) {
-               status = BT_NOTIFICATION_ITERATOR_STATUS_END;
+               status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_END;
                goto end;
        }
 
@@ -711,14 +712,14 @@ enum bt_notification_iterator_status dmesg_notif_iter_next_one(
                        &dmesg_notif_iter->linebuf_len, dmesg_notif_iter->fp);
                if (len < 0) {
                        if (errno == EINVAL) {
-                               status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
+                               status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_ERROR;
                        } else if (errno == ENOMEM) {
                                status =
-                                       BT_NOTIFICATION_ITERATOR_STATUS_NOMEM;
+                                       BT_SELF_NOTIFICATION_ITERATOR_STATUS_NOMEM;
                        } else {
                                if (dmesg_notif_iter->state == STATE_EMIT_STREAM_BEGINNING) {
                                        /* Stream did not even begin */
-                                       status = BT_NOTIFICATION_ITERATOR_STATUS_END;
+                                       status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_END;
                                        goto end;
                                } else {
                                        /* End current packet now */
@@ -793,7 +794,7 @@ handle_state:
        if (!*notif) {
                BT_LOGE("Cannot create notification: dmesg-comp-addr=%p",
                        dmesg_comp);
-               status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
+               status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_ERROR;
        }
 
 end:
@@ -801,25 +802,27 @@ end:
 }
 
 BT_HIDDEN
-enum bt_notification_iterator_status dmesg_notif_iter_next(
-               struct bt_private_connection_private_notification_iterator *priv_notif_iter,
+enum bt_self_notification_iterator_status dmesg_notif_iter_next(
+               struct bt_self_notification_iterator *self_notif_iter,
                bt_notification_array notifs, uint64_t capacity,
                uint64_t *count)
 {
        struct dmesg_notif_iter *dmesg_notif_iter =
-               bt_private_connection_private_notification_iterator_get_user_data(
-                       priv_notif_iter);
-       enum bt_notification_iterator_status status =
-               BT_NOTIFICATION_ITERATOR_STATUS_OK;
+               bt_self_notification_iterator_get_data(
+                       self_notif_iter);
+       enum bt_self_notification_iterator_status status =
+               BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK;
        uint64_t i = 0;
 
-       while (i < capacity && status == BT_NOTIFICATION_ITERATOR_STATUS_OK) {
-               struct bt_private_notification *priv_notif;
+       while (i < capacity &&
+                       status == BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK) {
+               struct bt_private_notification *priv_notif = NULL;
 
                status = dmesg_notif_iter_next_one(dmesg_notif_iter,
                        &priv_notif);
-               notifs[i] = bt_notification_borrow_from_private(priv_notif);
-               if (status == BT_NOTIFICATION_ITERATOR_STATUS_OK) {
+               notifs[i] = bt_private_notification_borrow_notification(
+                       priv_notif);
+               if (status == BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK) {
                        i++;
                }
        }
@@ -828,17 +831,17 @@ enum bt_notification_iterator_status dmesg_notif_iter_next(
                /*
                 * Even if dmesg_notif_iter_next_one() returned
                 * something else than
-                * BT_NOTIFICATION_ITERATOR_STATUS_OK, we accumulated
-                * notification objects in the output notification
-                * array, so we need to return
-                * BT_NOTIFICATION_ITERATOR_STATUS_OK so that they are
-                * transfered to downstream. This other status occurs
-                * again the next time muxer_notif_iter_do_next() is
-                * called, possibly without any accumulated
+                * BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK, we
+                * accumulated notification objects in the output
+                * notification array, so we need to return
+                * BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK so that they
+                * are transfered to downstream. This other status
+                * occurs again the next time muxer_notif_iter_do_next()
+                * is called, possibly without any accumulated
                 * notification, in which case we'll return it.
                 */
                *count = i;
-               status = BT_NOTIFICATION_ITERATOR_STATUS_OK;
+               status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK;
        }
 
        return status;
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