/*
- * 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>
*
- * 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_USTCONSUMER_H
#define _LTTNG_USTCONSUMER_H
-#include <config.h>
-#include <errno.h>
-
-#include <common/consumer.h>
+#include <common/compat/errno.h>
+#include <common/consumer/consumer.h>
+#include <stdbool.h>
#ifdef HAVE_LIBLTTNG_UST_CTL
-/*
- * Mmap the ring buffer, read it and write the data to the tracefile.
- *
- * Returns the number of bytes written, else negative value on error.
- */
-extern ssize_t lttng_ustconsumer_on_read_subbuffer_mmap(
- struct lttng_consumer_local_data *ctx,
- struct lttng_consumer_stream *stream, unsigned long len);
+int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream);
+int lttng_ustconsumer_sample_snapshot_positions(
+ struct lttng_consumer_stream *stream);
-/* Not implemented */
-extern ssize_t lttng_ustconsumer_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_ustconsumer_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_ustconsumer_get_produced_snapshot(
- struct lttng_consumer_local_data *ctx,
- struct lttng_consumer_stream *stream,
- unsigned long *pos);
+ struct lttng_consumer_stream *stream, unsigned long *pos);
+int lttng_ustconsumer_get_consumed_snapshot(
+ struct lttng_consumer_stream *stream, unsigned long *pos);
int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
int sock, struct pollfd *consumer_sockpoll);
extern int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan);
extern void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan);
-extern int lttng_ustconsumer_allocate_stream(struct lttng_consumer_stream *stream);
+extern void lttng_ustconsumer_free_channel(struct lttng_consumer_channel *chan);
+extern int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream);
extern void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream);
int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream);
+void lttng_ustctl_flush_buffer(struct lttng_consumer_stream *stream,
+ int producer_active);
+int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream *stream,
+ uint64_t *stream_id);
+int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream);
+void lttng_ustconsumer_close_all_metadata(struct lttng_ht *ht);
+void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel *metadata);
+void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream);
+int lttng_ustconsumer_recv_metadata(int sock, uint64_t key, uint64_t offset,
+ uint64_t len, uint64_t version,
+ struct lttng_consumer_channel *channel, int timer, int wait);
+int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data *ctx,
+ struct lttng_consumer_channel *channel, int timer, int wait);
+enum sync_metadata_status lttng_ustconsumer_sync_metadata(
+ struct lttng_consumer_local_data *ctx,
+ struct lttng_consumer_stream *metadata);
+void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream *stream,
+ int producer);
+void lttng_ustconsumer_clear_buffer(struct lttng_consumer_stream *stream);
+int lttng_ustconsumer_get_current_timestamp(
+ struct lttng_consumer_stream *stream, uint64_t *ts);
+int lttng_ustconsumer_get_sequence_number(
+ struct lttng_consumer_stream *stream, uint64_t *seq);
+
#else /* HAVE_LIBLTTNG_UST_CTL */
static inline
ssize_t lttng_ustconsumer_on_read_subbuffer_mmap(
struct lttng_consumer_local_data *ctx,
- struct lttng_consumer_stream *stream, unsigned long len)
+ struct lttng_consumer_stream *stream, unsigned long len,
+ unsigned long padding)
{
return -ENOSYS;
}
static inline
ssize_t lttng_ustconsumer_on_read_subbuffer_splice(
struct lttng_consumer_local_data *ctx,
- struct lttng_consumer_stream *uststream, unsigned long len)
+ struct lttng_consumer_stream *uststream, unsigned long len,
+ unsigned long padding)
+{
+ return -ENOSYS;
+}
+
+static inline
+int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream)
{
return -ENOSYS;
}
static inline
-int lttng_ustconsumer_take_snapshot(struct lttng_consumer_local_data *ctx,
- struct lttng_consumer_stream *stream)
+int lttng_ustconsumer_sample_snapshot_positions(
+ struct lttng_consumer_stream *stream)
{
return -ENOSYS;
}
static inline
int lttng_ustconsumer_get_produced_snapshot(
- struct lttng_consumer_local_data *ctx,
- struct lttng_consumer_stream *stream,
- unsigned long *pos)
+ struct lttng_consumer_stream *stream, unsigned long *pos)
+{
+ return -ENOSYS;
+}
+
+static inline
+int lttng_ustconsumer_get_consumed_snapshot(
+ struct lttng_consumer_stream *stream, unsigned long *pos)
{
return -ENOSYS;
}
}
static inline
-int lttng_ustconsumer_allocate_stream(struct lttng_consumer_stream *stream)
+void lttng_ustconsumer_free_channel(struct lttng_consumer_channel *chan)
+{
+}
+
+static inline
+int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream)
{
return -ENOSYS;
}
{
}
+static inline
+int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream,
+ unsigned long *off)
+{
+ return -ENOSYS;
+}
+static inline
+int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream)
+{
+ return -ENOSYS;
+}
+static inline
+void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream *stream)
+{
+ return NULL;
+}
+static inline
+void lttng_ustctl_flush_buffer(struct lttng_consumer_stream *stream,
+ int producer_active)
+{
+}
+static inline
+void lttng_ustconsumer_close_all_metadata(struct lttng_ht *ht)
+{
+}
+static inline
+void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel *metadata)
+{
+}
+static inline
+void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream)
+{
+}
+static inline
+int lttng_ustconsumer_recv_metadata(int sock, uint64_t key, uint64_t offset,
+ uint64_t len, uint64_t version,
+ struct lttng_consumer_channel *channel, int timer)
+{
+ return -ENOSYS;
+}
+static inline
+int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data *ctx,
+ struct lttng_consumer_channel *channel, int timer, int wait)
+{
+ return -ENOSYS;
+}
+static inline
+enum sync_metadata_status lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data *ctx,
+ struct lttng_consumer_stream *metadata)
+{
+ return SYNC_METADATA_STATUS_ERROR;
+}
+static inline
+void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream *stream,
+ int producer)
+{
+}
+static inline
+void lttng_ustconsumer_clear_buffer(struct lttng_consumer_stream *stream)
+{
+}
+static inline
+int lttng_ustconsumer_get_current_timestamp(
+ struct lttng_consumer_stream *stream, uint64_t *ts)
+{
+ return -ENOSYS;
+}
+static inline
+int lttng_ustconsumer_get_sequence_number(
+ struct lttng_consumer_stream *stream, uint64_t *seq)
+{
+ return -ENOSYS;
+}
+static inline
+int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream *stream,
+ uint64_t *stream_id)
+{
+ return -ENOSYS;
+}
#endif /* HAVE_LIBLTTNG_UST_CTL */
#endif /* _LTTNG_USTCONSUMER_H */
projects / lttng-tools.git / blobdiff