ust-consumer: Expose user space clear buffer operation

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

diff --git a/src/common/ust-consumer/ust-consumer.h b/src/common/ust-consumer/ust-consumer.h
index 4357380a60965855d36fe199d9cf7c68eb446e5b..742506b4fbdb9aa80bbc47745cd8efc5d0a6e194 100644 (file)
--- a/src/common/ust-consumer/ust-consumer.h
+++ b/src/common/ust-consumer/ust-consumer.h
@@ -19,14 +19,16 @@
 #ifndef _LTTNG_USTCONSUMER_H
 #define _LTTNG_USTCONSUMER_H
 
-#include <config.h>
 #include <errno.h>
 
-#include <common/consumer.h>
+#include <common/consumer/consumer.h>
+#include <stdbool.h>
 
 #ifdef HAVE_LIBLTTNG_UST_CTL
 
 int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream);
+int lttng_ustconsumer_sample_snapshot_positions(
+               struct lttng_consumer_stream *stream);
 
 int lttng_ustconsumer_get_produced_snapshot(
                struct lttng_consumer_stream *stream, unsigned long *pos);
@@ -38,6 +40,7 @@ int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
 
 extern int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan);
 extern void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan);
+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);
 
@@ -50,6 +53,8 @@ void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream);
 int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream,
                unsigned long *off);
 void *lttng_ustctl_get_mmap_base(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);
@@ -57,16 +62,19 @@ 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, struct lttng_consumer_channel *channel,
-               int timer, int wait);
+               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);
 int 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 */
 
@@ -94,6 +102,13 @@ int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream)
        return -ENOSYS;
 }
 
+static inline
+int lttng_ustconsumer_sample_snapshot_positions(
+               struct lttng_consumer_stream *stream)
+{
+       return -ENOSYS;
+}
+
 static inline
 int lttng_ustconsumer_get_produced_snapshot(
                struct lttng_consumer_stream *stream, unsigned long *pos)
@@ -101,6 +116,13 @@ int lttng_ustconsumer_get_produced_snapshot(
        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_recv_cmd(struct lttng_consumer_local_data *ctx,
                int sock, struct pollfd *consumer_sockpoll)
@@ -119,6 +141,11 @@ void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan)
 {
 }
 
+static inline
+void lttng_ustconsumer_free_channel(struct lttng_consumer_channel *chan)
+{
+}
+
 static inline
 int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream)
 {
@@ -165,6 +192,11 @@ 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)
 {
 }
@@ -178,8 +210,8 @@ 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, struct lttng_consumer_channel *channel,
-               int timer)
+               uint64_t len, uint64_t version,
+               struct lttng_consumer_channel *channel, int timer)
 {
        return -ENOSYS;
 }
@@ -201,12 +233,22 @@ void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream *stream,
 {
 }
 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)
 {