X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=src%2Fcommon%2Fconsumer%2Fconsumer.h;h=0aaa73e5550e83c5a6fc6cab189198beea4de8a5;hb=fe7bf56464d7747362e1bde77c2769a62c81ac4c;hp=e28c20bf1c397c28384126c849564cde0b27d833;hpb=b623cb6a788d9e666d9a93658ab04b06458863ef;p=lttng-tools.git

diff --git a/src/common/consumer/consumer.h b/src/common/consumer/consumer.h
index e28c20bf1..0aaa73e55 100644
--- a/src/common/consumer/consumer.h
+++ b/src/common/consumer/consumer.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca>
+ * Copyright (C) 2011 EfficiOS Inc.
  * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  * Copyright (C) 2012 David Goulet <dgoulet@efficios.com>
  * Copyright (C) 2018 Jérémie Galarneau <jeremie.galarneau@efficios.com>
@@ -13,6 +13,7 @@
 
 #include <limits.h>
 #include <poll.h>
+#include <stdint.h>
 #include <unistd.h>
 #include <urcu/list.h>
 
@@ -299,6 +300,12 @@ struct stream_subbuffer {
 	} info;
 };
 
+enum get_next_subbuffer_status {
+	GET_NEXT_SUBBUFFER_STATUS_OK,
+	GET_NEXT_SUBBUFFER_STATUS_NO_DATA,
+	GET_NEXT_SUBBUFFER_STATUS_ERROR,
+};
+
 /*
  * Perform any operation required to acknowledge
  * the wake-up of a consumer stream (e.g. consume a byte on a wake-up pipe).
@@ -321,8 +328,8 @@ typedef int (*on_sleep_cb)(struct lttng_consumer_stream *,
  *
  * Stream and channel locks are acquired during this call.
  */
-typedef int (*get_next_subbuffer_cb)(struct lttng_consumer_stream *,
-		struct stream_subbuffer *);
+typedef enum get_next_subbuffer_status (*get_next_subbuffer_cb)(
+		struct lttng_consumer_stream *, struct stream_subbuffer *);
 
 /*
  * Populate the stream_subbuffer's info member. The info to populate
@@ -390,6 +397,13 @@ typedef void (*lock_cb)(struct lttng_consumer_stream *);
  */
 typedef void (*unlock_cb)(struct lttng_consumer_stream *);
 
+/*
+ * Assert that the stream and channel lock and any other stream type specific
+ * lock that need to be acquired during the processing of a read_subbuffer
+ * operation is acquired.
+ */
+typedef void (*assert_locked_cb)(struct lttng_consumer_stream *);
+
 /*
  * Invoked when a subbuffer's metadata version does not match the last
  * known metadata version.
@@ -641,6 +655,7 @@ struct lttng_consumer_stream {
 		send_live_beacon_cb send_live_beacon;
 		on_sleep_cb on_sleep;
 		unlock_cb unlock;
+		assert_locked_cb assert_locked;
 	} read_subbuffer_ops;
 	struct metadata_bucket *metadata_bucket;
 };
@@ -1000,10 +1015,16 @@ ssize_t lttng_consumer_read_subbuffer(struct lttng_consumer_stream *stream,
 		struct lttng_consumer_local_data *ctx,
 		bool locked_by_caller);
 int lttng_consumer_on_recv_stream(struct lttng_consumer_stream *stream);
-void consumer_add_relayd_socket(uint64_t net_seq_idx, int sock_type,
-		struct lttng_consumer_local_data *ctx, int sock,
-		struct pollfd *consumer_sockpoll, struct lttcomm_relayd_sock *relayd_sock,
-		uint64_t sessiond_id, uint64_t relayd_session_id);
+void consumer_add_relayd_socket(uint64_t net_seq_idx,
+		int sock_type,
+		struct lttng_consumer_local_data *ctx,
+		int sock,
+		struct pollfd *consumer_sockpoll,
+		uint64_t sessiond_id,
+		uint64_t relayd_session_id,
+		uint32_t relayd_version_major,
+		uint32_t relayd_version_minor,
+		enum lttcomm_sock_proto relayd_socket_protocol);
 void consumer_flag_relayd_for_destroy(
 		struct consumer_relayd_sock_pair *relayd);
 int consumer_data_pending(uint64_t id);
@@ -1053,5 +1074,6 @@ int lttng_consumer_clear_channel(struct lttng_consumer_channel *channel);
 enum lttcomm_return_code lttng_consumer_open_channel_packets(
 		struct lttng_consumer_channel *channel);
 int consumer_metadata_wakeup_pipe(const struct lttng_consumer_channel *channel);
+void lttng_consumer_sigbus_handle(void *addr);
 
 #endif /* LIB_CONSUMER_H */