SoW-2020-0002: Trace Hit Counters: trigger error reporting integration

[lttng-tools.git] / src / common / kernel-consumer / kernel-consumer.h

diff --git a/src/common/kernel-consumer/kernel-consumer.h b/src/common/kernel-consumer/kernel-consumer.h
index f4f46169de2a15bf9548df2d8f554a43681ceef9..004becb0f0feea1f93694d8ab21bc7a778322b25 100644 (file)
--- a/src/common/kernel-consumer/kernel-consumer.h
+++ b/src/common/kernel-consumer/kernel-consumer.h
@@ -1,70 +1,30 @@
 /*
- * Copyright (C) 2011 - Julien Desfossez <julien.desfossez@polymtl.ca>
- * Copyright (C) 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca>
+ * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; only version 2
- * of the License.
+ * SPDX-License-Identifier: GPL-2.0-only
  *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
 #ifndef _LTTNG_KCONSUMER_H
 #define _LTTNG_KCONSUMER_H
 
-#include <common/consumer.h>
-
-/*
- * Mmap the ring buffer, read it and write the data to the tracefile.
- *
- * Returns the number of bytes written, or negative value on error.
- */
-extern ssize_t lttng_kconsumer_on_read_subbuffer_mmap(
-               struct lttng_consumer_local_data *ctx,
-               struct lttng_consumer_stream *stream, unsigned long len);
-
-/*
- * Splice the data from the ring buffer to the tracefile.
- *
- * Returns the number of bytes spliced, or negative error value on
- * error.
- */
-extern ssize_t lttng_kconsumer_on_read_subbuffer_splice(
-               struct lttng_consumer_local_data *ctx,
-               struct lttng_consumer_stream *stream, unsigned long len);
-
-/*
- * Take a snapshot for a specific fd
- *
- * Returns 0 on success, < 0 on error
- */
-int lttng_kconsumer_take_snapshot(struct lttng_consumer_local_data *ctx,
-        struct lttng_consumer_stream *stream);
-
-/*
- * Get the produced position
- *
- * Returns 0 on success, < 0 on error
- */
-int lttng_kconsumer_get_produced_snapshot(
-        struct lttng_consumer_local_data *ctx,
-        struct lttng_consumer_stream *stream,
-        unsigned long *pos);
+#include <stdbool.h>
+#include <common/consumer/consumer.h>
 
+int lttng_kconsumer_take_snapshot(struct lttng_consumer_stream *stream);
+int lttng_kconsumer_sample_snapshot_positions(
+               struct lttng_consumer_stream *stream);
+int lttng_kconsumer_get_produced_snapshot(struct lttng_consumer_stream *stream,
+               unsigned long *pos);
+int lttng_kconsumer_get_consumed_snapshot(struct lttng_consumer_stream *stream,
+               unsigned long *pos);
 int lttng_kconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
                int sock, struct pollfd *consumer_sockpoll);
-
-
-ssize_t lttng_kconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
-               struct lttng_consumer_local_data *ctx);
 int lttng_kconsumer_on_recv_stream(struct lttng_consumer_stream *stream);
+int lttng_kconsumer_data_pending(struct lttng_consumer_stream *stream);
+enum sync_metadata_status lttng_kconsumer_sync_metadata(
+               struct lttng_consumer_stream *metadata);
 
 #endif /* _LTTNG_KCONSUMER_H */