X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=include%2Flttng%2Fust-events.h;h=74a3bc651f4302c98aaff17e9db878a48e07ca47;hb=82b9bde830eff824adf7762afb7cb05c39bc83e3;hp=05966ff69e344218daf0fa29b9e401843e3b7eac;hpb=13b21cd60df2abab292653cead980ef27dbfab08;p=lttng-ust.git

diff --git a/include/lttng/ust-events.h b/include/lttng/ust-events.h
index 05966ff6..74a3bc65 100644
--- a/include/lttng/ust-events.h
+++ b/include/lttng/ust-events.h
@@ -37,6 +37,15 @@
 
 #define LTTNG_UST_UUID_LEN		16
 
+/*
+ * Tracepoint provider version. Compatibility based on the major number.
+ * Older tracepoint providers can always register to newer lttng-ust
+ * library, but the opposite is rejected: a newer tracepoint provider is
+ * rejected by an older lttng-ust library.
+ */
+#define LTTNG_UST_PROVIDER_MAJOR	1
+#define LTTNG_UST_PROVIDER_MINOR	0
+
 struct lttng_channel;
 struct lttng_session;
 struct lttng_ust_lib_ring_buffer_ctx;
@@ -54,6 +63,8 @@ enum lttng_client_types {
 	LTTNG_CLIENT_METADATA = 0,
 	LTTNG_CLIENT_DISCARD = 1,
 	LTTNG_CLIENT_OVERWRITE = 2,
+	LTTNG_CLIENT_DISCARD_RT = 3,
+	LTTNG_CLIENT_OVERWRITE_RT = 4,
 	LTTNG_NR_CLIENT_TYPES,
 };
 
@@ -87,15 +98,21 @@ struct lttng_enum_entry {
 
 #define __type_integer(_type, _byte_order, _base, _encoding)	\
 	{							\
-	    .atype = atype_integer,				\
-	    .u.basic.integer =					\
+	  .atype = atype_integer,				\
+	  .u =							\
 		{						\
-		  .size = sizeof(_type) * CHAR_BIT,		\
-		  .alignment = lttng_alignof(_type) * CHAR_BIT,	\
-		  .signedness = lttng_is_signed_type(_type),	\
-		  .reverse_byte_order = _byte_order != BYTE_ORDER,	\
-		  .base = _base,				\
-		  .encoding = lttng_encode_##_encoding,		\
+		  .basic = 					\
+			{					\
+			  .integer =				\
+				{				\
+				  .size = sizeof(_type) * CHAR_BIT,		\
+				  .alignment = lttng_alignof(_type) * CHAR_BIT,	\
+				  .signedness = lttng_is_signed_type(_type),	\
+				  .reverse_byte_order = _byte_order != BYTE_ORDER, \
+				  .base = _base,				\
+				  .encoding = lttng_encode_##_encoding,		\
+				}				\
+			}					\
 		},						\
 	}							\
 
@@ -121,14 +138,20 @@ struct lttng_integer_type {
 
 #define __type_float(_type)					\
 	{							\
-	    .atype = atype_float,				\
-	    .u.basic._float =					\
+	  .atype = atype_float,					\
+	  .u =							\
 		{						\
-		  .exp_dig = sizeof(_type) * CHAR_BIT		\
-				- _float_mant_dig(_type),	\
-		  .mant_dig = _float_mant_dig(_type),		\
-		  .alignment = lttng_alignof(_type) * CHAR_BIT,	\
-		  .reverse_byte_order = BYTE_ORDER != FLOAT_WORD_ORDER, \
+		  .basic =					\
+			{					\
+			  ._float =				\
+				{				\
+				  .exp_dig = sizeof(_type) * CHAR_BIT		\
+						  - _float_mant_dig(_type),	\
+				  .mant_dig = _float_mant_dig(_type),		\
+				  .alignment = lttng_alignof(_type) * CHAR_BIT,	\
+				  .reverse_byte_order = BYTE_ORDER != FLOAT_WORD_ORDER,	\
+				}				\
+			}					\
 		},						\
 	}							\
 
@@ -203,6 +226,12 @@ struct lttng_event_field {
 	char padding[LTTNG_UST_EVENT_FIELD_PADDING];
 };
 
+union lttng_ctx_value {
+	int64_t s64;
+	const char *str;
+	double d;
+};
+
 #define LTTNG_UST_CTX_FIELD_PADDING	40
 struct lttng_ctx_field {
 	struct lttng_event_field event_field;
@@ -210,6 +239,8 @@ struct lttng_ctx_field {
 	void (*record)(struct lttng_ctx_field *field,
 		       struct lttng_ust_lib_ring_buffer_ctx *ctx,
 		       struct lttng_channel *chan);
+	void (*get_value)(struct lttng_ctx_field *field,
+			 union lttng_ctx_value *value);
 	union {
 		char padding[LTTNG_UST_CTX_FIELD_PADDING];
 	} u;
@@ -241,7 +272,7 @@ struct lttng_event_desc {
 	} u;
 };
 
-#define LTTNG_UST_PROBE_DESC_PADDING	20
+#define LTTNG_UST_PROBE_DESC_PADDING	12
 struct lttng_probe_desc {
 	const char *provider;
 	const struct lttng_event_desc **event_desc;
@@ -249,6 +280,8 @@ struct lttng_probe_desc {
 	struct cds_list_head head;		/* chain registered probes */
 	struct cds_list_head lazy_init_head;
 	int lazy;				/* lazy registration */
+	uint32_t major;
+	uint32_t minor;
 	char padding[LTTNG_UST_PROBE_DESC_PADDING];
 };
 
@@ -365,6 +398,7 @@ struct lttng_event {
 	/* Backward references: list of lttng_enabler_ref (ref to enablers) */
 	struct cds_list_head enablers_ref_head;
 	struct cds_hlist_node hlist;	/* session ht of events */
+	int registered;			/* has reg'd tracepoint probe */
 };
 
 struct channel;
@@ -381,8 +415,11 @@ struct lttng_channel_ops {
 			size_t subbuf_size, size_t num_subbuf,
 			unsigned int switch_timer_interval,
 			unsigned int read_timer_interval,
-			unsigned char *uuid);
+			unsigned char *uuid,
+			uint32_t chan_id);
 	void (*channel_destroy)(struct lttng_channel *chan);
+	void *_deprecated1;
+	void *_deprecated2;
 	int (*event_reserve)(struct lttng_ust_lib_ring_buffer_ctx *ctx,
 			     uint32_t event_id);
 	void (*event_commit)(struct lttng_ust_lib_ring_buffer_ctx *ctx);
@@ -432,6 +469,7 @@ struct lttng_channel {
 	unsigned int id;
 	enum lttng_ust_chan_type type;
 	unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */
+	int tstate:1;			/* Transient enable state */
 };
 
 #define LTTNG_UST_EVENT_HT_BITS		12
@@ -463,6 +501,7 @@ struct lttng_session {
 	struct cds_list_head enablers_head;
 	struct lttng_ust_event_ht events_ht;	/* ht of events */
 	void *owner;				/* object owner */
+	int tstate:1;				/* Transient enable state */
 };
 
 struct lttng_transport {
@@ -502,6 +541,9 @@ int lttng_enabler_attach_context(struct lttng_enabler *enabler,
 
 int lttng_attach_context(struct lttng_ust_context *context_param,
 		struct lttng_ctx **ctx, struct lttng_session *session);
+void lttng_context_init(void);
+void lttng_context_exit(void);
+struct lttng_ctx *lttng_static_ctx;	/* Used by filtering */
 
 void lttng_transport_register(struct lttng_transport *transport);
 void lttng_transport_unregister(struct lttng_transport *transport);
@@ -510,10 +552,11 @@ void synchronize_trace(void);
 
 int lttng_probe_register(struct lttng_probe_desc *desc);
 void lttng_probe_unregister(struct lttng_probe_desc *desc);
-int lttng_fix_pending_event_desc(const struct lttng_event_desc *desc);
+int lttng_fix_pending_events(void);
 int lttng_probes_init(void);
 void lttng_probes_exit(void);
 int lttng_find_context(struct lttng_ctx *ctx, const char *name);
+int lttng_get_context_index(struct lttng_ctx *ctx, const char *name);
 struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx_p);
 void lttng_remove_context_field(struct lttng_ctx **ctx_p,
 				struct lttng_ctx_field *field);
@@ -522,12 +565,13 @@ int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_vpid_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_pthread_id_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_procname_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_ip_to_ctx(struct lttng_ctx **ctx);
 void lttng_context_vtid_reset(void);
 void lttng_context_vpid_reset(void);
 
-extern const struct lttng_ust_lib_ring_buffer_client_cb *lttng_client_callbacks_metadata;
-extern const struct lttng_ust_lib_ring_buffer_client_cb *lttng_client_callbacks_discard;
-extern const struct lttng_ust_lib_ring_buffer_client_cb *lttng_client_callbacks_overwrite;
+extern const struct lttng_ust_client_lib_ring_buffer_client_cb *lttng_client_callbacks_metadata;
+extern const struct lttng_ust_client_lib_ring_buffer_client_cb *lttng_client_callbacks_discard;
+extern const struct lttng_ust_client_lib_ring_buffer_client_cb *lttng_client_callbacks_overwrite;
 
 struct lttng_transport *lttng_transport_find(const char *name);