Fix: pass private data to context callbacks

[lttng-ust.git] / liblttng-ust / lttng-rb-clients.h

diff --git a/liblttng-ust/lttng-rb-clients.h b/liblttng-ust/lttng-rb-clients.h
index 85d4e1bcbfe1477cd85a340af3bb750367bbcd0c..9cec72e8dc53b887fd2fba9029e5ba79a71a30d4 100644 (file)
--- a/liblttng-ust/lttng-rb-clients.h
+++ b/liblttng-ust/lttng-rb-clients.h
@@ -1,48 +1,94 @@
-#ifndef _LTTNG_RB_CLIENT_H
-#define _LTTNG_RB_CLIENT_H
-
 /*
- * Copyright (c) 2013 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
+ * SPDX-License-Identifier: LGPL-2.1-only
  *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ * Copyright (C) 2013 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  */
 
+#ifndef _LTTNG_RB_CLIENT_H
+#define _LTTNG_RB_CLIENT_H
+
+#include <stdint.h>
+#include "../libringbuffer/ringbuffer-config.h"
+
 struct lttng_ust_client_lib_ring_buffer_client_cb {
        struct lttng_ust_lib_ring_buffer_client_cb parent;
 
        int (*timestamp_begin) (struct lttng_ust_lib_ring_buffer *buf,
-                       struct lttng_ust_shm_handle *handle,
+                       struct lttng_ust_lib_ring_buffer_channel *chan,
                        uint64_t *timestamp_begin);
        int (*timestamp_end) (struct lttng_ust_lib_ring_buffer *buf,
-                       struct lttng_ust_shm_handle *handle,
+                       struct lttng_ust_lib_ring_buffer_channel *chan,
                        uint64_t *timestamp_end);
        int (*events_discarded) (struct lttng_ust_lib_ring_buffer *buf,
-                       struct lttng_ust_shm_handle *handle,
+                       struct lttng_ust_lib_ring_buffer_channel *chan,
                        uint64_t *events_discarded);
        int (*content_size) (struct lttng_ust_lib_ring_buffer *buf,
-                       struct lttng_ust_shm_handle *handle,
+                       struct lttng_ust_lib_ring_buffer_channel *chan,
                        uint64_t *content_size);
        int (*packet_size) (struct lttng_ust_lib_ring_buffer *buf,
-                       struct lttng_ust_shm_handle *handle,
+                       struct lttng_ust_lib_ring_buffer_channel *chan,
                        uint64_t *packet_size);
        int (*stream_id) (struct lttng_ust_lib_ring_buffer *buf,
-                       struct lttng_ust_shm_handle *handle,
+                       struct lttng_ust_lib_ring_buffer_channel *chan,
                        uint64_t *stream_id);
        int (*current_timestamp) (struct lttng_ust_lib_ring_buffer *buf,
-                       struct lttng_ust_shm_handle *handle,
+                       struct lttng_ust_lib_ring_buffer_channel *chan,
                        uint64_t *ts);
+       int (*sequence_number) (struct lttng_ust_lib_ring_buffer *buf,
+               struct lttng_ust_lib_ring_buffer_channel *chan, uint64_t *seq);
+       int (*instance_id) (struct lttng_ust_lib_ring_buffer *buf,
+                       struct lttng_ust_lib_ring_buffer_channel *chan, uint64_t *id);
 };
 
+/*
+ * The ring buffer clients init/exit symbols are private ABI for
+ * liblttng-ust-ctl, which is why they are not hidden.
+ */
+void lttng_ust_ring_buffer_clients_init(void);
+void lttng_ust_ring_buffer_clients_exit(void);
+
+void lttng_ring_buffer_client_overwrite_init(void)
+       __attribute__((visibility("hidden")));
+
+void lttng_ring_buffer_client_overwrite_rt_init(void)
+       __attribute__((visibility("hidden")));
+
+void lttng_ring_buffer_client_discard_init(void)
+       __attribute__((visibility("hidden")));
+
+void lttng_ring_buffer_client_discard_rt_init(void)
+       __attribute__((visibility("hidden")));
+
+void lttng_ring_buffer_metadata_client_init(void)
+       __attribute__((visibility("hidden")));
+
+
+void lttng_ring_buffer_client_overwrite_exit(void)
+       __attribute__((visibility("hidden")));
+
+void lttng_ring_buffer_client_overwrite_rt_exit(void)
+       __attribute__((visibility("hidden")));
+
+void lttng_ring_buffer_client_discard_exit(void)
+       __attribute__((visibility("hidden")));
+
+void lttng_ring_buffer_client_discard_rt_exit(void)
+       __attribute__((visibility("hidden")));
+
+void lttng_ring_buffer_metadata_client_exit(void)
+       __attribute__((visibility("hidden")));
+
+
+void lttng_ust_fixup_ring_buffer_client_overwrite_tls(void)
+       __attribute__((visibility("hidden")));
+
+void lttng_ust_fixup_ring_buffer_client_overwrite_rt_tls(void)
+       __attribute__((visibility("hidden")));
+
+void lttng_ust_fixup_ring_buffer_client_discard_tls(void)
+       __attribute__((visibility("hidden")));
+
+void lttng_ust_fixup_ring_buffer_client_discard_rt_tls(void)
+       __attribute__((visibility("hidden")));
+
 #endif /* _LTTNG_RB_CLIENT_H */