X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=include%2Flttng%2Fust-ctl.h;h=4b254efac37d458025379116c73151070ec77458;hb=fb31eb73d8a4a6d9784ed5c335b7fa3b9684108c;hp=08122a79da002d43fe778812bf9f5b639801a2ad;hpb=f53329f3d1489c6241f8606954835357a56a9eab;p=lttng-ust.git

diff --git a/include/lttng/ust-ctl.h b/include/lttng/ust-ctl.h
index 08122a79..4b254efa 100644
--- a/include/lttng/ust-ctl.h
+++ b/include/lttng/ust-ctl.h
@@ -19,9 +19,16 @@
 #ifndef _LTTNG_UST_CTL_H
 #define _LTTNG_UST_CTL_H
 
-#include <lttng/ust-abi.h>
-#include <sys/types.h>
 #include <limits.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <lttng/ust-abi.h>
+
+#ifndef LTTNG_PACKED
+#error "LTTNG_PACKED should be defined"
+#endif
 
 #ifndef LTTNG_UST_UUID_LEN
 #define LTTNG_UST_UUID_LEN	16
@@ -53,6 +60,7 @@ struct ustctl_consumer_channel_attr {
 	enum lttng_ust_output output;		/* splice, mmap */
 	uint32_t chan_id;			/* channel ID */
 	unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */
+	int64_t blocking_timeout;			/* Blocking timeout (usec) */
 } LTTNG_PACKED;
 
 /*
@@ -226,6 +234,7 @@ int ustctl_put_next_subbuf(struct ustctl_consumer_stream *stream);
 /* snapshot */
 
 int ustctl_snapshot(struct ustctl_consumer_stream *stream);
+int ustctl_snapshot_sample_positions(struct ustctl_consumer_stream *stream);
 int ustctl_snapshot_get_consumed(struct ustctl_consumer_stream *stream,
 		unsigned long *pos);
 int ustctl_snapshot_get_produced(struct ustctl_consumer_stream *stream,
@@ -236,8 +245,15 @@ int ustctl_put_subbuf(struct ustctl_consumer_stream *stream);
 
 void ustctl_flush_buffer(struct ustctl_consumer_stream *stream,
 		int producer_active);
+void ustctl_clear_buffer(struct ustctl_consumer_stream *stream);
 
 /* index */
+
+/*
+ * Getters which need to be used on the current packet (between get/put
+ * or get_next/put_next.
+ */
+
 int ustctl_get_timestamp_begin(struct ustctl_consumer_stream *stream,
 		uint64_t *timestamp_begin);
 int ustctl_get_timestamp_end(struct ustctl_consumer_stream *stream,
@@ -248,15 +264,26 @@ int ustctl_get_content_size(struct ustctl_consumer_stream *stream,
 	uint64_t *content_size);
 int ustctl_get_packet_size(struct ustctl_consumer_stream *stream,
 	uint64_t *packet_size);
-int ustctl_get_stream_id(struct ustctl_consumer_stream *stream,
-		uint64_t *stream_id);
-int ustctl_get_current_timestamp(struct ustctl_consumer_stream *stream,
-		uint64_t *ts);
 int ustctl_get_sequence_number(struct ustctl_consumer_stream *stream,
 		uint64_t *seq);
+
+/*
+ * Getter returning state invariant for the stream, which can be used
+ * without "get" operation.
+ */
+
+int ustctl_get_stream_id(struct ustctl_consumer_stream *stream,
+		uint64_t *stream_id);
 int ustctl_get_instance_id(struct ustctl_consumer_stream *stream,
 		uint64_t *id);
 
+/*
+ * Getter returning the current timestamp as perceived from the
+ * tracer.
+ */
+int ustctl_get_current_timestamp(struct ustctl_consumer_stream *stream,
+		uint64_t *ts);
+
 /* returns whether UST has perf counters support. */
 int ustctl_has_perf_counters(void);
 
@@ -309,7 +336,7 @@ struct ustctl_integer_type {
 	uint32_t signedness;
 	uint32_t reverse_byte_order;
 	uint32_t base;		/* 2, 8, 10, 16, for pretty print */
-	enum ustctl_string_encodings encoding;
+	int32_t encoding;	/* enum ustctl_string_encodings */
 	uint16_t alignment;	/* in bits */
 	char padding[USTCTL_UST_INTEGER_TYPE_PADDING];
 } LTTNG_PACKED;
@@ -330,11 +357,20 @@ struct ustctl_enum_value {
 	char padding[USTCTL_UST_ENUM_VALUE_PADDING];
 } LTTNG_PACKED;
 
+enum ustctl_ust_enum_entry_options {
+	USTCTL_UST_ENUM_ENTRY_OPTION_IS_AUTO = 1U << 0,
+};
+
 #define USTCTL_UST_ENUM_ENTRY_PADDING	32
 struct ustctl_enum_entry {
 	struct ustctl_enum_value start, end; /* start and end are inclusive */
 	char string[LTTNG_UST_SYM_NAME_LEN];
-	char padding[USTCTL_UST_ENUM_ENTRY_PADDING];
+	union {
+		struct {
+			uint32_t options;
+		} LTTNG_PACKED extra;
+		char padding[USTCTL_UST_ENUM_ENTRY_PADDING];
+	} u;
 } LTTNG_PACKED;
 
 #define USTCTL_UST_BASIC_TYPE_PADDING	296
@@ -346,7 +382,7 @@ union _ustctl_basic_type {
 		uint64_t id;	/* enum ID in sessiond. */
 	} enumeration;
 	struct {
-		enum ustctl_string_encodings encoding;
+		int32_t encoding;	/* enum ustctl_string_encodings */
 	} string;
 	struct ustctl_float_type _float;
 	char padding[USTCTL_UST_BASIC_TYPE_PADDING];