[babeltrace.git] / include / babeltrace / ctf-ir / metadata.h

#ifndef _BABELTRACE_CTF_IR_METADATA_H
#define _BABELTRACE_CTF_IR_METADATA_H

/*
 * BabelTrace
 *
 * CTF Intermediate Representation Metadata Header
 *
 * Copyright 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 */

#include <babeltrace/types.h>
#include <babeltrace/format.h>
#include <babeltrace/ctf/types.h>
#include <sys/types.h>
#include <dirent.h>
#include <uuid/uuid.h>
#include <assert.h>
#include <glib.h>

struct ctf_trace;
struct ctf_stream_class;
struct ctf_stream;
struct ctf_event;
struct ctf_stream;
struct ctf_clock;

struct ctf_stream {
	struct ctf_stream_class *stream_class;
	uint64_t timestamp;			/* Current timestamp, in ns */
	uint64_t event_id;			/* Current event ID */
	int has_timestamp;
	uint64_t stream_id;

	struct definition_struct *trace_packet_header;
	struct definition_struct *stream_packet_context;
	struct definition_struct *stream_event_header;
	struct definition_struct *stream_event_context;
	GPtrArray *events_by_id;		/* Array of struct ctf_stream_event pointers indexed by id */
	struct definition_scope *parent_def_scope;	/* for initialization */
	int stream_definitions_created;

	struct ctf_clock *current_clock;

	/* Event discarded information */
	uint32_t events_discarded;
	uint64_t prev_timestamp;	/* Last event */
	uint64_t prev_timestamp_end;	/* End-of-packet timestamp */
};

struct ctf_stream_event {
	struct definition_struct *event_context;
	struct definition_struct *event_fields;
};

#define CTF_CLOCK_SET_FIELD(ctf_clock, field)				\
	do {								\
		(ctf_clock)->field_mask |= CTF_CLOCK_ ## field;		\
	} while (0)

#define CTF_CLOCK_FIELD_IS_SET(ctf_clock, field)			\
		((ctf_clock)->field_mask & CTF_CLOCK_ ## field)

#define CTF_CLOCK_GET_FIELD(ctf_clock, field)				\
	({								\
		assert(CTF_CLOCK_FIELD_IS_SET(ctf_clock, field));	\
		(ctf_clock)->(field);					\
	})

struct ctf_clock {
	GQuark name;
	GQuark uuid;
	char *description;
	uint64_t freq;	/* frequency, in HZ */
	/* precision in seconds is: precision * (1/freq) */
	uint64_t precision;
	/*
	 * The offset from Epoch is: offset_s + (offset * (1/freq))
	 * Coarse clock offset from Epoch (in seconds).
	 */
	uint64_t offset_s;
	/* Fine clock offset from Epoch, in (1/freq) units. */
	uint64_t offset;
	int absolute;

	enum {					/* Fields populated mask */
		CTF_CLOCK_name		=	(1U << 0),
		CTF_CLOCK_freq		=	(1U << 1),
	} field_mask;
};

#define CTF_TRACE_SET_FIELD(ctf_trace, field)				\
	do {								\
		(ctf_trace)->field_mask |= CTF_TRACE_ ## field;		\
	} while (0)

#define CTF_TRACE_FIELD_IS_SET(ctf_trace, field)			\
		((ctf_trace)->field_mask & CTF_TRACE_ ## field)

#define CTF_TRACE_GET_FIELD(ctf_trace, field)				\
	({								\
		assert(CTF_TRACE_FIELD_IS_SET(ctf_trace, field));	\
		(ctf_trace)->(field);					\
	})

#define TRACER_ENV_LEN	128

/* tracer-specific environment */
struct ctf_tracer_env {
	int vpid;		/* negative if unset */

	/* All strings below: "" if unset. */
	char procname[TRACER_ENV_LEN];
	char domain[TRACER_ENV_LEN];
	char sysname[TRACER_ENV_LEN];
	char release[TRACER_ENV_LEN];
	char version[TRACER_ENV_LEN];
};

struct ctf_trace {
	struct trace_descriptor parent;
	/* root scope */
	struct declaration_scope *root_declaration_scope;

	struct declaration_scope *declaration_scope;
	/* innermost definition scope. to be used as parent of stream. */
	struct definition_scope *definition_scope;
	GPtrArray *streams;			/* Array of struct ctf_stream_class pointers */
	struct ctf_stream *metadata;
	GHashTable *clocks;
	struct ctf_clock *single_clock;		/* currently supports only one clock */
	struct trace_collection *collection;	/* Container of this trace */

	struct declaration_struct *packet_header_decl;

	uint64_t major;
	uint64_t minor;
	uuid_t uuid;
	int byte_order;		/* trace BYTE_ORDER. 0 if unset. */
	struct ctf_tracer_env env;

	enum {					/* Fields populated mask */
		CTF_TRACE_major		=	(1U << 0),
		CTF_TRACE_minor		=	(1U << 1),
		CTF_TRACE_uuid		=	(1U << 2),
		CTF_TRACE_byte_order	=	(1U << 3),
		CTF_TRACE_packet_header	=	(1U << 4),
	} field_mask;

	/* Information about trace backing directory and files */
	DIR *dir;
	int dirfd;
	int flags;		/* open flags */

	/* Heap of streams, ordered to always get the lowest timestam */
	struct ptr_heap *stream_heap;
	char path[PATH_MAX];
};

#define CTF_STREAM_SET_FIELD(ctf_stream, field)				\
	do {								\
		(ctf_stream)->field_mask |= CTF_STREAM_ ## field;	\
	} while (0)

#define CTF_STREAM_FIELD_IS_SET(ctf_stream, field)			\
		((ctf_stream)->field_mask & CTF_STREAM_ ## field)

#define CTF_STREAM_GET_FIELD(ctf_stream, field)				\
	({								\
		assert(CTF_STREAM_FIELD_IS_SET(ctf_stream, field));	\
		(ctf_stream)->(field);					\
	})

struct ctf_stream_class {
	struct ctf_trace *trace;
	/* parent is lexical scope conaining the stream scope */
	struct declaration_scope *declaration_scope;
	/* innermost definition scope. to be used as parent of event. */
	struct definition_scope *definition_scope;
	GPtrArray *events_by_id;		/* Array of struct ctf_event pointers indexed by id */
	GHashTable *event_quark_to_id;		/* GQuark to numeric id */

	struct declaration_struct *packet_context_decl;
	struct declaration_struct *event_header_decl;
	struct declaration_struct *event_context_decl;

	uint64_t stream_id;

	enum {					/* Fields populated mask */
		CTF_STREAM_stream_id =	(1 << 0),
	} field_mask;

	GPtrArray *streams;	/* Array of struct ctf_stream pointers */
};

#define CTF_EVENT_SET_FIELD(ctf_event, field)				\
	do {								\
		(ctf_event)->field_mask |= CTF_EVENT_ ## field;		\
	} while (0)

#define CTF_EVENT_FIELD_IS_SET(ctf_event, field)			\
		((ctf_event)->field_mask & CTF_EVENT_ ## field)

#define CTF_EVENT_GET_FIELD(ctf_event, field)				\
	({								\
		assert(CTF_EVENT_FIELD_IS_SET(ctf_event, field));	\
		(ctf_event)->(field);					\
	})

struct ctf_event {
	/* stream mapped by stream_id */
	struct ctf_stream_class *stream;
	/* parent is lexical scope conaining the event scope */
	struct declaration_scope *declaration_scope;

	struct declaration_struct *context_decl;
	struct declaration_struct *fields_decl;

	GQuark name;
	uint64_t id;		/* Numeric identifier within the stream */
	uint64_t stream_id;
	int loglevel;

	enum {					/* Fields populated mask */
		CTF_EVENT_name	=		(1 << 0),
		CTF_EVENT_id 	= 		(1 << 1),
		CTF_EVENT_stream_id = 		(1 << 2),
		CTF_EVENT_loglevel =		(1 << 4),
	} field_mask;
};

#endif /* _BABELTRACE_CTF_IR_METADATA_H */
Commit	Line	Data
145b8090 MD	1	#ifndef _BABELTRACE_CTF_IR_METADATA_H
	2	#define _BABELTRACE_CTF_IR_METADATA_H
	3
	4	/*
	5	* BabelTrace
	6	*
	7	* CTF Intermediate Representation Metadata Header
	8	*
	9	* Copyright 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	10	*
	11	* Permission is hereby granted, free of charge, to any person obtaining a copy
	12	* of this software and associated documentation files (the "Software"), to deal
	13	* in the Software without restriction, including without limitation the rights
	14	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	15	* copies of the Software, and to permit persons to whom the Software is
	16	* furnished to do so, subject to the following conditions:
	17	*
	18	* The above copyright notice and this permission notice shall be included in
	19	* all copies or substantial portions of the Software.
	20	*/
	21
	22	#include <babeltrace/types.h>
	23	#include <babeltrace/format.h>
	24	#include <babeltrace/ctf/types.h>
	25	#include <sys/types.h>
	26	#include <dirent.h>
	27	#include <uuid/uuid.h>
	28	#include <assert.h>
	29	#include <glib.h>
	30
	31	struct ctf_trace;
	32	struct ctf_stream_class;
	33	struct ctf_stream;
	34	struct ctf_event;
25ccc85b MD	35	struct ctf_stream;
25ccc85b MD	36	struct ctf_clock;
145b8090 MD	37
	38	struct ctf_stream {
	39	struct ctf_stream_class *stream_class;
	40	uint64_t timestamp; /* Current timestamp, in ns */
c87a8eb2	41	uint64_t event_id; /* Current event ID */
5e2eb0ae	42	int has_timestamp;
661c4ce8	43	uint64_t stream_id;
145b8090 MD	44
	45	struct definition_struct *trace_packet_header;
	46	struct definition_struct *stream_packet_context;
	47	struct definition_struct *stream_event_header;
	48	struct definition_struct *stream_event_context;
42dc00b7	49	GPtrArray events_by_id; / Array of struct ctf_stream_event pointers indexed by id */
145b8090 MD	50	struct definition_scope parent_def_scope; / for initialization */
145b8090 MD	51	int stream_definitions_created;
fca04958	52
25ccc85b MD	53	struct ctf_clock *current_clock;
25ccc85b MD	54
fca04958 MD	55	/* Event discarded information */
fca04958 MD	56	uint32_t events_discarded;
3217ac37 MD	57	uint64_t prev_timestamp; /* Last event */
3217ac37 MD	58	uint64_t prev_timestamp_end; /* End-of-packet timestamp */
145b8090 MD	59	};
145b8090 MD	60
42dc00b7	61	struct ctf_stream_event {
145b8090 MD	62	struct definition_struct *event_context;
	63	struct definition_struct *event_fields;
	64	};
	65
50cb9c56 MD	66	#define CTF_CLOCK_SET_FIELD(ctf_clock, field) \
	67	do { \
	68	(ctf_clock)->field_mask \|= CTF_CLOCK_ ## field; \
	69	} while (0)
	70
	71	#define CTF_CLOCK_FIELD_IS_SET(ctf_clock, field) \
	72	((ctf_clock)->field_mask & CTF_CLOCK_ ## field)
	73
	74	#define CTF_CLOCK_GET_FIELD(ctf_clock, field) \
	75	({ \
	76	assert(CTF_CLOCK_FIELD_IS_SET(ctf_clock, field)); \
	77	(ctf_clock)->(field); \
	78	})
	79
	80	struct ctf_clock {
	81	GQuark name;
	82	GQuark uuid;
	83	char *description;
	84	uint64_t freq; /* frequency, in HZ */
	85	/* precision in seconds is: precision * (1/freq) */
	86	uint64_t precision;
	87	/*
	88	* The offset from Epoch is: offset_s + (offset * (1/freq))
	89	* Coarse clock offset from Epoch (in seconds).
	90	*/
	91	uint64_t offset_s;
	92	/* Fine clock offset from Epoch, in (1/freq) units. */
	93	uint64_t offset;
11ac6674	94	int absolute;
50cb9c56 MD	95
	96	enum { /* Fields populated mask */
	97	CTF_CLOCK_name = (1U << 0),
bf94ab2b	98	CTF_CLOCK_freq = (1U << 1),
50cb9c56 MD	99	} field_mask;
	100	};
	101
145b8090 MD	102	#define CTF_TRACE_SET_FIELD(ctf_trace, field) \
	103	do { \
	104	(ctf_trace)->field_mask \|= CTF_TRACE_ ## field; \
	105	} while (0)
	106
	107	#define CTF_TRACE_FIELD_IS_SET(ctf_trace, field) \
	108	((ctf_trace)->field_mask & CTF_TRACE_ ## field)
	109
	110	#define CTF_TRACE_GET_FIELD(ctf_trace, field) \
	111	({ \
	112	assert(CTF_TRACE_FIELD_IS_SET(ctf_trace, field)); \
	113	(ctf_trace)->(field); \
	114	})
	115
cadd09e9 MD	116	#define TRACER_ENV_LEN 128
	117
	118	/* tracer-specific environment */
	119	struct ctf_tracer_env {
	120	int vpid; /* negative if unset */
	121
	122	/* All strings below: "" if unset. */
	123	char procname[TRACER_ENV_LEN];
	124	char domain[TRACER_ENV_LEN];
	125	char sysname[TRACER_ENV_LEN];
	126	char release[TRACER_ENV_LEN];
	127	char version[TRACER_ENV_LEN];
	128	};
	129
145b8090 MD	130	struct ctf_trace {
	131	struct trace_descriptor parent;
	132	/* root scope */
	133	struct declaration_scope *root_declaration_scope;
	134
	135	struct declaration_scope *declaration_scope;
	136	/* innermost definition scope. to be used as parent of stream. */
	137	struct definition_scope *definition_scope;
	138	GPtrArray streams; / Array of struct ctf_stream_class pointers */
2d0bea29	139	struct ctf_stream *metadata;
50cb9c56	140	GHashTable *clocks;
25ccc85b	141	struct ctf_clock single_clock; / currently supports only one clock */
fa709ab2	142	struct trace_collection collection; / Container of this trace */
145b8090	143
145b8090 MD	144	struct declaration_struct *packet_header_decl;
	145
	146	uint64_t major;
	147	uint64_t minor;
	148	uuid_t uuid;
	149	int byte_order; /* trace BYTE_ORDER. 0 if unset. */
cadd09e9	150	struct ctf_tracer_env env;
145b8090 MD	151
	152	enum { /* Fields populated mask */
	153	CTF_TRACE_major = (1U << 0),
	154	CTF_TRACE_minor = (1U << 1),
	155	CTF_TRACE_uuid = (1U << 2),
	156	CTF_TRACE_byte_order = (1U << 3),
	157	CTF_TRACE_packet_header = (1U << 4),
	158	} field_mask;
	159
	160	/* Information about trace backing directory and files */
	161	DIR *dir;
	162	int dirfd;
	163	int flags; /* open flags */
	164
	165	/* Heap of streams, ordered to always get the lowest timestam */
	166	struct ptr_heap *stream_heap;
82662ad4	167	char path[PATH_MAX];
145b8090 MD	168	};
	169
	170	#define CTF_STREAM_SET_FIELD(ctf_stream, field) \
	171	do { \
	172	(ctf_stream)->field_mask \|= CTF_STREAM_ ## field; \
	173	} while (0)
	174
	175	#define CTF_STREAM_FIELD_IS_SET(ctf_stream, field) \
	176	((ctf_stream)->field_mask & CTF_STREAM_ ## field)
	177
	178	#define CTF_STREAM_GET_FIELD(ctf_stream, field) \
	179	({ \
	180	assert(CTF_STREAM_FIELD_IS_SET(ctf_stream, field)); \
	181	(ctf_stream)->(field); \
	182	})
	183
	184	struct ctf_stream_class {
	185	struct ctf_trace *trace;
	186	/* parent is lexical scope conaining the stream scope */
	187	struct declaration_scope *declaration_scope;
	188	/* innermost definition scope. to be used as parent of event. */
	189	struct definition_scope *definition_scope;
	190	GPtrArray events_by_id; / Array of struct ctf_event pointers indexed by id */
	191	GHashTable event_quark_to_id; / GQuark to numeric id */
	192
145b8090 MD	193	struct declaration_struct *packet_context_decl;
	194	struct declaration_struct *event_header_decl;
	195	struct declaration_struct *event_context_decl;
	196
	197	uint64_t stream_id;
	198
	199	enum { /* Fields populated mask */
	200	CTF_STREAM_stream_id = (1 << 0),
	201	} field_mask;
	202
2d0bea29	203	GPtrArray streams; / Array of struct ctf_stream pointers */
145b8090 MD	204	};
	205
	206	#define CTF_EVENT_SET_FIELD(ctf_event, field) \
	207	do { \
	208	(ctf_event)->field_mask \|= CTF_EVENT_ ## field; \
	209	} while (0)
	210
	211	#define CTF_EVENT_FIELD_IS_SET(ctf_event, field) \
	212	((ctf_event)->field_mask & CTF_EVENT_ ## field)
	213
	214	#define CTF_EVENT_GET_FIELD(ctf_event, field) \
	215	({ \
	216	assert(CTF_EVENT_FIELD_IS_SET(ctf_event, field)); \
	217	(ctf_event)->(field); \
	218	})
	219
	220	struct ctf_event {
	221	/* stream mapped by stream_id */
	222	struct ctf_stream_class *stream;
	223	/* parent is lexical scope conaining the event scope */
	224	struct declaration_scope *declaration_scope;
	225
145b8090 MD	226	struct declaration_struct *context_decl;
	227	struct declaration_struct *fields_decl;
	228
	229	GQuark name;
	230	uint64_t id; /* Numeric identifier within the stream */
	231	uint64_t stream_id;
306eeaa6	232	int loglevel;
145b8090 MD	233
145b8090 MD	234	enum { /* Fields populated mask */
d86d62f8 MD	235	CTF_EVENT_name = (1 << 0),
	236	CTF_EVENT_id = (1 << 1),
	237	CTF_EVENT_stream_id = (1 << 2),
306eeaa6	238	CTF_EVENT_loglevel = (1 << 4),
145b8090 MD	239	} field_mask;
	240	};
	241
	242	#endif /* _BABELTRACE_CTF_IR_METADATA_H */