X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=include%2Fust%2Flttng-events.h;h=303d0dafc0a9d6393bb25ff8ff12b789c1e26455;hb=8165c8da23fb8a3395d7e829f3d5734e18dd7db9;hp=743ff161953e1629f13ae0ac525d0e50bdea71a8;hpb=0a42beb627df1b9ea5cce4b1908e8a9cefaa1631;p=lttng-ust.git

diff --git a/include/ust/lttng-events.h b/include/ust/lttng-events.h
index 743ff161..303d0daf 100644
--- a/include/ust/lttng-events.h
+++ b/include/ust/lttng-events.h
@@ -15,9 +15,9 @@
 #include <uuid/uuid.h>
 #include <stdint.h>
 #include <ust/lttng-ust-abi.h>
-
-#undef is_signed_type
-#define is_signed_type(type)		(((type)(-1)) < 0)
+#include <ust/lttng-tracer.h>
+#include <endian.h>
+#include <float.h>
 
 struct ltt_channel;
 struct ltt_session;
@@ -32,6 +32,7 @@ enum abstract_types {
 	atype_array,
 	atype_sequence,
 	atype_string,
+	atype_float,
 	NR_ABSTRACT_TYPES,
 };
 
@@ -54,8 +55,8 @@ struct lttng_enum_entry {
 	    .u.basic.integer =					\
 		{						\
 		  .size = sizeof(_type) * CHAR_BIT,		\
-		  .alignment = ltt_alignof(_type) * CHAR_BIT,	\
-		  .signedness = is_signed_type(_type),		\
+		  .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,		\
@@ -71,6 +72,32 @@ struct lttng_integer_type {
 	enum lttng_string_encodings encoding;
 };
 
+#define _float_mant_dig(_type)						\
+	(sizeof(_type) == sizeof(float) ? FLT_MANT_DIG			\
+		: (sizeof(_type) == sizeof(double) ? DBL_MANT_DIG	\
+		: (sizeof(_type) == sizeof(long double) ? LDBL_MANT_DIG	\
+		: 0)))
+
+#define __type_float(_type)					\
+	{							\
+	    .atype = atype_float,				\
+	    .u.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, \
+		},						\
+	}							\
+
+struct lttng_float_type {
+	unsigned int exp_dig;		/* exponent digits, in bits */
+	unsigned int mant_dig;		/* mantissa digits, in bits */
+	unsigned short alignment;	/* in bits */
+	unsigned int reverse_byte_order:1;
+};
+
 union _lttng_basic_type {
 	struct lttng_integer_type integer;
 	struct {
@@ -79,6 +106,7 @@ union _lttng_basic_type {
 	struct {
 		enum lttng_string_encodings encoding;
 	} string;
+	struct lttng_float_type _float;
 };
 
 struct lttng_basic_type {
@@ -148,6 +176,8 @@ struct lttng_probe_desc {
 	struct cds_list_head head;		/* chain registered probes */
 };
 
+struct ust_pending_probe;
+
 /*
  * ltt_event structure is referred to by the tracing fast path. It must be
  * kept small.
@@ -163,20 +193,25 @@ struct ltt_event {
 	union {
 	} u;
 	struct cds_list_head list;		/* Event list */
+	struct ust_pending_probe *pending_probe;
 	int metadata_dumped:1;
 };
 
+struct channel;
+struct shm_handle;
+
 struct ltt_channel_ops {
-	struct channel *(*channel_create)(const char *name,
+	struct ltt_channel *(*channel_create)(const char *name,
 				struct ltt_channel *ltt_chan,
 				void *buf_addr,
 				size_t subbuf_size, size_t num_subbuf,
 				unsigned int switch_timer_interval,
-				unsigned int read_timer_interval,
-				int *shmid);
-	void (*channel_destroy)(struct channel *chan);
-	struct lib_ring_buffer *(*buffer_read_open)(struct channel *chan);
-	void (*buffer_read_close)(struct lib_ring_buffer *buf);
+				unsigned int read_timer_interval);
+	void (*channel_destroy)(struct ltt_channel *ltt_chan);
+	struct lib_ring_buffer *(*buffer_read_open)(struct channel *chan,
+				struct shm_handle *handle);
+	void (*buffer_read_close)(struct lib_ring_buffer *buf,
+				struct shm_handle *handle);
 	int (*event_reserve)(struct lib_ring_buffer_ctx *ctx,
 			     uint32_t event_id);
 	void (*event_commit)(struct lib_ring_buffer_ctx *ctx);
@@ -187,7 +222,8 @@ struct ltt_channel_ops {
 	 * packet. Note that the size returned is only a hint, since it
 	 * may change due to concurrent writes.
 	 */
-	size_t (*packet_avail_size)(struct channel *chan);
+	size_t (*packet_avail_size)(struct channel *chan,
+				    struct shm_handle *handle);
 	//wait_queue_head_t *(*get_reader_wait_queue)(struct channel *chan);
 	//wait_queue_head_t *(*get_hp_wait_queue)(struct channel *chan);
 	int (*is_finalized)(struct channel *chan);
@@ -203,10 +239,11 @@ struct ltt_channel {
 	struct ltt_session *session;
 	int objd;			/* Object associated to channel */
 	unsigned int free_event_id;	/* Next event ID to allocate */
+	unsigned int used_event_id;	/* Max allocated event IDs */
 	struct cds_list_head list;	/* Channel list */
 	struct ltt_channel_ops *ops;
 	int header_type;		/* 0: unset, 1: compact, 2: large */
-	int shmid;			/* shared memory ID */
+	struct shm_handle *handle;	/* shared-memory handle */
 	int metadata_dumped:1;
 };
 
@@ -264,6 +301,7 @@ void synchronize_trace(void);
 
 int ltt_probe_register(struct lttng_probe_desc *desc);
 void ltt_probe_unregister(struct lttng_probe_desc *desc);
+int pending_probe_fix_events(const struct lttng_event_desc *desc);
 const struct lttng_event_desc *ltt_event_get(const char *name);
 void ltt_event_put(const struct lttng_event_desc *desc);
 int ltt_probes_init(void);