Refactoring: add back constness of public API structures

[lttng-ust.git] / liblttng-ust / ust-core.c

diff --git a/liblttng-ust/ust-core.c b/liblttng-ust/ust-core.c
index 0b1fcf0b787724781e3dc855f00b41e6393e1ed1..2633832b801bab42ad311b73ab23752449d77caf 100644 (file)
--- a/liblttng-ust/ust-core.c
+++ b/liblttng-ust/ust-core.c
@@ -9,9 +9,12 @@
 #include <stddef.h>
 #include <stdlib.h>
 
+#include "context-internal.h"
 #include "ust-events-internal.h"
 #include <usterr-signal-safe.h>
 #include "lttng-tracer-core.h"
+#include "lttng-rb-clients.h"
+#include "lttng-counter-client.h"
 #include "jhash.h"
 
 static CDS_LIST_HEAD(lttng_transport_list);
@@ -87,7 +90,7 @@ void lttng_counter_transport_unregister(struct lttng_counter_transport *transpor
  * Needed by comm layer.
  */
 struct lttng_enum *lttng_ust_enum_get_from_desc(struct lttng_ust_session *session,
-               struct lttng_ust_enum_desc *enum_desc)
+               const struct lttng_ust_enum_desc *enum_desc)
 {
        struct lttng_enum *_enum;
        struct cds_hlist_head *head;
@@ -105,26 +108,26 @@ struct lttng_enum *lttng_ust_enum_get_from_desc(struct lttng_ust_session *sessio
        return NULL;
 }
 
-size_t lttng_ust_dummy_get_size(struct lttng_ust_ctx_field *field, size_t offset)
+size_t lttng_ust_dummy_get_size(void *priv __attribute__((unused)),
+               size_t offset)
 {
        size_t size = 0;
 
-       size += lib_ring_buffer_align(offset, lttng_alignof(char));
+       size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(char));
        size += sizeof(char);           /* tag */
        return size;
 }
 
-void lttng_ust_dummy_record(struct lttng_ust_ctx_field *field,
+void lttng_ust_dummy_record(void *priv __attribute__((unused)),
                 struct lttng_ust_lib_ring_buffer_ctx *ctx,
-                struct lttng_channel *chan)
+                struct lttng_ust_channel_buffer *chan)
 {
        char sel_char = (char) LTTNG_UST_DYNAMIC_TYPE_NONE;
 
-       lib_ring_buffer_align_ctx(ctx, lttng_alignof(sel_char));
-       chan->ops->event_write(ctx, &sel_char, sizeof(sel_char));
+       chan->ops->event_write(ctx, &sel_char, sizeof(sel_char), lttng_ust_rb_alignof(sel_char));
 }
 
-void lttng_ust_dummy_get_value(struct lttng_ust_ctx_field *field,
+void lttng_ust_dummy_get_value(void *priv __attribute__((unused)),
                struct lttng_ust_ctx_value *value)
 {
        value->sel = LTTNG_UST_DYNAMIC_TYPE_NONE;
@@ -137,3 +140,86 @@ int lttng_context_is_app(const char *name)
        }
        return 1;
 }
+
+struct lttng_ust_channel_buffer *lttng_ust_alloc_channel_buffer(void)
+{
+       struct lttng_ust_channel_buffer *lttng_chan_buf;
+       struct lttng_ust_channel_common *lttng_chan_common;
+       struct lttng_ust_channel_buffer_private *lttng_chan_buf_priv;
+
+       lttng_chan_buf = zmalloc(sizeof(struct lttng_ust_channel_buffer));
+       if (!lttng_chan_buf)
+               goto lttng_chan_buf_error;
+       lttng_chan_buf->struct_size = sizeof(struct lttng_ust_channel_buffer);
+       lttng_chan_common = zmalloc(sizeof(struct lttng_ust_channel_common));
+       if (!lttng_chan_common)
+               goto lttng_chan_common_error;
+       lttng_chan_common->struct_size = sizeof(struct lttng_ust_channel_common);
+       lttng_chan_buf_priv = zmalloc(sizeof(struct lttng_ust_channel_buffer_private));
+       if (!lttng_chan_buf_priv)
+               goto lttng_chan_buf_priv_error;
+       lttng_chan_buf->parent = lttng_chan_common;
+       lttng_chan_common->type = LTTNG_UST_CHANNEL_TYPE_BUFFER;
+       lttng_chan_common->child = lttng_chan_buf;
+       lttng_chan_buf->priv = lttng_chan_buf_priv;
+       lttng_chan_common->priv = &lttng_chan_buf_priv->parent;
+       lttng_chan_buf_priv->pub = lttng_chan_buf;
+       lttng_chan_buf_priv->parent.pub = lttng_chan_common;
+
+       return lttng_chan_buf;
+
+lttng_chan_buf_priv_error:
+       free(lttng_chan_common);
+lttng_chan_common_error:
+       free(lttng_chan_buf);
+lttng_chan_buf_error:
+       return NULL;
+}
+
+void lttng_ust_free_channel_common(struct lttng_ust_channel_common *chan)
+{
+       switch (chan->type) {
+       case LTTNG_UST_CHANNEL_TYPE_BUFFER:
+       {
+               struct lttng_ust_channel_buffer *chan_buf;
+
+               chan_buf = (struct lttng_ust_channel_buffer *)chan->child;
+               free(chan_buf->parent);
+               free(chan_buf->priv);
+               free(chan_buf);
+               break;
+       }
+       default:
+               abort();
+       }
+}
+
+void lttng_ust_ring_buffer_clients_init(void)
+{
+       lttng_ring_buffer_metadata_client_init();
+       lttng_ring_buffer_client_overwrite_init();
+       lttng_ring_buffer_client_overwrite_rt_init();
+       lttng_ring_buffer_client_discard_init();
+       lttng_ring_buffer_client_discard_rt_init();
+}
+
+void lttng_ust_ring_buffer_clients_exit(void)
+{
+       lttng_ring_buffer_client_discard_rt_exit();
+       lttng_ring_buffer_client_discard_exit();
+       lttng_ring_buffer_client_overwrite_rt_exit();
+       lttng_ring_buffer_client_overwrite_exit();
+       lttng_ring_buffer_metadata_client_exit();
+}
+
+void lttng_ust_counter_clients_init(void)
+{
+       lttng_counter_client_percpu_64_modular_init();
+       lttng_counter_client_percpu_32_modular_init();
+}
+
+void lttng_ust_counter_clients_exit(void)
+{
+       lttng_counter_client_percpu_32_modular_exit();
+       lttng_counter_client_percpu_64_modular_exit();
+}