[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 <babeltrace/uuid.h>
#include <assert.h>
#include <glib.h>

struct ctf_trace;
struct ctf_stream_declaration;
struct ctf_event_declaration;
struct ctf_clock;
struct ctf_callsite;

struct ctf_stream_definition {
	struct ctf_stream_declaration *stream_class;
	uint64_t real_timestamp;		/* Current timestamp, in ns */
	uint64_t cycles_timestamp;		/* Current timestamp, in cycles */
	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_event_definition pointers indexed by id */
	struct definition_scope *parent_def_scope;	/* for initialization */
	int stream_definitions_created;

	struct ctf_clock *current_clock;

	/* Event discarded information */
	uint64_t events_discarded;
	uint64_t prev_real_timestamp;		/* Start-of-last-packet timestamp in ns */
	uint64_t prev_real_timestamp_end;	/* End-of-last-packet timestamp in ns */
	uint64_t prev_cycles_timestamp;		/* Start-of-last-packet timestamp in cycles */
	uint64_t prev_cycles_timestamp_end;	/* End-of-last-packet timestamp in cycles */
};

struct ctf_event_definition {
	struct ctf_stream_definition *stream;
	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_CALLSITE_SET_FIELD(ctf_callsite, field)			\
	do {								\
		(ctf_callsite)->field_mask |= CTF_CALLSITE_ ## field;	\
	} while (0)

#define CTF_CALLSITE_FIELD_IS_SET(ctf_callsite, field)			\
		((ctf_callsite)->field_mask & CTF_CALLSITE_ ## field)

#define CTF_CALLSITE_GET_FIELD(ctf_callsite, field)			\
	({								\
		assert(CTF_CALLSITE_FIELD_IS_SET(ctf_callsite, field));	\
		(ctf_callsite)->(field);				\
	})

struct ctf_callsite {
	GQuark name;		/* event name associated with callsite */
	char *func;
	char *file;
	uint64_t line;
	uint64_t ip;
	struct bt_list_head node;
	enum {					/* Fields populated mask */
		CTF_CALLSITE_name	=	(1U << 0),
		CTF_CALLSITE_func	=	(1U << 1),
		CTF_CALLSITE_file	=	(1U << 2),
		CTF_CALLSITE_line	=	(1U << 3),
		CTF_CALLSITE_ip		=	(1U << 4),
	} field_mask;
};

struct ctf_callsite_dups {
	struct bt_list_head head;
};

#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 hostname[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_declaration pointers */
	struct ctf_stream_definition *metadata;
	GHashTable *clocks;
	GHashTable *callsites;
	struct ctf_clock *single_clock;		/* currently supports only one clock */
	struct trace_collection *collection;	/* Container of this trace */
	GPtrArray *event_declarations;		/* Array of all the struct bt_ctf_event_decl */

	struct declaration_struct *packet_header_decl;

	uint64_t major;
	uint64_t minor;
	unsigned char uuid[BABELTRACE_UUID_LEN];
	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];

	struct bt_context *ctx;
	struct bt_trace_handle *handle;
};

#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_declaration {
	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_declaration 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_definition 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_declaration {
	/* stream mapped by stream_id */
	struct ctf_stream_declaration *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;
	GQuark model_emf_uri;

	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),
		CTF_EVENT_model_emf_uri =	(1 << 5),
	} field_mask;
};

#endif /* _BABELTRACE_CTF_IR_METADATA_H */
Commit	Line	Data
	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 <babeltrace/uuid.h>
	28	#include <assert.h>
	29	#include <glib.h>
	30
	31	struct ctf_trace;
	32	struct ctf_stream_declaration;
	33	struct ctf_event_declaration;
	34	struct ctf_clock;
	35	struct ctf_callsite;
	36
	37	struct ctf_stream_definition {
	38	struct ctf_stream_declaration *stream_class;
	39	uint64_t real_timestamp; /* Current timestamp, in ns */
	40	uint64_t cycles_timestamp; /* Current timestamp, in cycles */
	41	uint64_t event_id; /* Current event ID */
	42	int has_timestamp;
	43	uint64_t stream_id;
	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;
	49	GPtrArray events_by_id; / Array of struct ctf_event_definition pointers indexed by id */
	50	struct definition_scope parent_def_scope; / for initialization */
	51	int stream_definitions_created;
	52
	53	struct ctf_clock *current_clock;
	54
	55	/* Event discarded information */
	56	uint64_t events_discarded;
	57	uint64_t prev_real_timestamp; /* Start-of-last-packet timestamp in ns */
	58	uint64_t prev_real_timestamp_end; /* End-of-last-packet timestamp in ns */
	59	uint64_t prev_cycles_timestamp; /* Start-of-last-packet timestamp in cycles */
	60	uint64_t prev_cycles_timestamp_end; /* End-of-last-packet timestamp in cycles */
	61	};
	62
	63	struct ctf_event_definition {
	64	struct ctf_stream_definition *stream;
	65	struct definition_struct *event_context;
	66	struct definition_struct *event_fields;
	67	};
	68
	69	#define CTF_CLOCK_SET_FIELD(ctf_clock, field) \
	70	do { \
	71	(ctf_clock)->field_mask \|= CTF_CLOCK_ ## field; \
	72	} while (0)
	73
	74	#define CTF_CLOCK_FIELD_IS_SET(ctf_clock, field) \
	75	((ctf_clock)->field_mask & CTF_CLOCK_ ## field)
	76
	77	#define CTF_CLOCK_GET_FIELD(ctf_clock, field) \
	78	({ \
	79	assert(CTF_CLOCK_FIELD_IS_SET(ctf_clock, field)); \
	80	(ctf_clock)->(field); \
	81	})
	82
	83	struct ctf_clock {
	84	GQuark name;
	85	GQuark uuid;
	86	char *description;
	87	uint64_t freq; /* frequency, in HZ */
	88	/* precision in seconds is: precision * (1/freq) */
	89	uint64_t precision;
	90	/*
	91	* The offset from Epoch is: offset_s + (offset * (1/freq))
	92	* Coarse clock offset from Epoch (in seconds).
	93	*/
	94	uint64_t offset_s;
	95	/* Fine clock offset from Epoch, in (1/freq) units. */
	96	uint64_t offset;
	97	int absolute;
	98
	99	enum { /* Fields populated mask */
	100	CTF_CLOCK_name = (1U << 0),
	101	CTF_CLOCK_freq = (1U << 1),
	102	} field_mask;
	103	};
	104
	105	#define CTF_CALLSITE_SET_FIELD(ctf_callsite, field) \
	106	do { \
	107	(ctf_callsite)->field_mask \|= CTF_CALLSITE_ ## field; \
	108	} while (0)
	109
	110	#define CTF_CALLSITE_FIELD_IS_SET(ctf_callsite, field) \
	111	((ctf_callsite)->field_mask & CTF_CALLSITE_ ## field)
	112
	113	#define CTF_CALLSITE_GET_FIELD(ctf_callsite, field) \
	114	({ \
	115	assert(CTF_CALLSITE_FIELD_IS_SET(ctf_callsite, field)); \
	116	(ctf_callsite)->(field); \
	117	})
	118
	119	struct ctf_callsite {
	120	GQuark name; /* event name associated with callsite */
	121	char *func;
	122	char *file;
	123	uint64_t line;
	124	uint64_t ip;
	125	struct bt_list_head node;
	126	enum { /* Fields populated mask */
	127	CTF_CALLSITE_name = (1U << 0),
	128	CTF_CALLSITE_func = (1U << 1),
	129	CTF_CALLSITE_file = (1U << 2),
	130	CTF_CALLSITE_line = (1U << 3),
	131	CTF_CALLSITE_ip = (1U << 4),
	132	} field_mask;
	133	};
	134
	135	struct ctf_callsite_dups {
	136	struct bt_list_head head;
	137	};
	138
	139	#define CTF_TRACE_SET_FIELD(ctf_trace, field) \
	140	do { \
	141	(ctf_trace)->field_mask \|= CTF_TRACE_ ## field; \
	142	} while (0)
	143
	144	#define CTF_TRACE_FIELD_IS_SET(ctf_trace, field) \
	145	((ctf_trace)->field_mask & CTF_TRACE_ ## field)
	146
	147	#define CTF_TRACE_GET_FIELD(ctf_trace, field) \
	148	({ \
	149	assert(CTF_TRACE_FIELD_IS_SET(ctf_trace, field)); \
	150	(ctf_trace)->(field); \
	151	})
	152
	153	#define TRACER_ENV_LEN 128
	154
	155	/* tracer-specific environment */
	156	struct ctf_tracer_env {
	157	int vpid; /* negative if unset */
	158
	159	/* All strings below: "" if unset. */
	160	char procname[TRACER_ENV_LEN];
	161	char hostname[TRACER_ENV_LEN];
	162	char domain[TRACER_ENV_LEN];
	163	char sysname[TRACER_ENV_LEN];
	164	char release[TRACER_ENV_LEN];
	165	char version[TRACER_ENV_LEN];
	166	};
	167
	168	struct ctf_trace {
	169	struct trace_descriptor parent;
	170	/* root scope */
	171	struct declaration_scope *root_declaration_scope;
	172
	173	struct declaration_scope *declaration_scope;
	174	/* innermost definition scope. to be used as parent of stream. */
	175	struct definition_scope *definition_scope;
	176	GPtrArray streams; / Array of struct ctf_stream_declaration pointers */
	177	struct ctf_stream_definition *metadata;
	178	GHashTable *clocks;
	179	GHashTable *callsites;
	180	struct ctf_clock single_clock; / currently supports only one clock */
	181	struct trace_collection collection; / Container of this trace */
	182	GPtrArray event_declarations; / Array of all the struct bt_ctf_event_decl */
	183
	184	struct declaration_struct *packet_header_decl;
	185
	186	uint64_t major;
	187	uint64_t minor;
	188	unsigned char uuid[BABELTRACE_UUID_LEN];
	189	int byte_order; /* trace BYTE_ORDER. 0 if unset. */
	190	struct ctf_tracer_env env;
	191
	192	enum { /* Fields populated mask */
	193	CTF_TRACE_major = (1U << 0),
	194	CTF_TRACE_minor = (1U << 1),
	195	CTF_TRACE_uuid = (1U << 2),
	196	CTF_TRACE_byte_order = (1U << 3),
	197	CTF_TRACE_packet_header = (1U << 4),
	198	} field_mask;
	199
	200	/* Information about trace backing directory and files */
	201	DIR *dir;
	202	int dirfd;
	203	int flags; /* open flags */
	204
	205	/* Heap of streams, ordered to always get the lowest timestam */
	206	struct ptr_heap *stream_heap;
	207	char path[PATH_MAX];
	208
	209	struct bt_context *ctx;
	210	struct bt_trace_handle *handle;
	211	};
	212
	213	#define CTF_STREAM_SET_FIELD(ctf_stream, field) \
	214	do { \
	215	(ctf_stream)->field_mask \|= CTF_STREAM_ ## field; \
	216	} while (0)
	217
	218	#define CTF_STREAM_FIELD_IS_SET(ctf_stream, field) \
	219	((ctf_stream)->field_mask & CTF_STREAM_ ## field)
	220
	221	#define CTF_STREAM_GET_FIELD(ctf_stream, field) \
	222	({ \
	223	assert(CTF_STREAM_FIELD_IS_SET(ctf_stream, field)); \
	224	(ctf_stream)->(field); \
	225	})
	226
	227	struct ctf_stream_declaration {
	228	struct ctf_trace *trace;
	229	/* parent is lexical scope conaining the stream scope */
	230	struct declaration_scope *declaration_scope;
	231	/* innermost definition scope. to be used as parent of event. */
	232	struct definition_scope *definition_scope;
	233	GPtrArray events_by_id; / Array of struct ctf_event_declaration pointers indexed by id */
	234	GHashTable event_quark_to_id; / GQuark to numeric id */
	235
	236	struct declaration_struct *packet_context_decl;
	237	struct declaration_struct *event_header_decl;
	238	struct declaration_struct *event_context_decl;
	239
	240	uint64_t stream_id;
	241
	242	enum { /* Fields populated mask */
	243	CTF_STREAM_stream_id = (1 << 0),
	244	} field_mask;
	245
	246	GPtrArray streams; / Array of struct ctf_stream_definition pointers */
	247	};
	248
	249	#define CTF_EVENT_SET_FIELD(ctf_event, field) \
	250	do { \
	251	(ctf_event)->field_mask \|= CTF_EVENT_ ## field; \
	252	} while (0)
	253
	254	#define CTF_EVENT_FIELD_IS_SET(ctf_event, field) \
	255	((ctf_event)->field_mask & CTF_EVENT_ ## field)
	256
	257	#define CTF_EVENT_GET_FIELD(ctf_event, field) \
	258	({ \
	259	assert(CTF_EVENT_FIELD_IS_SET(ctf_event, field)); \
	260	(ctf_event)->(field); \
	261	})
	262
	263	struct ctf_event_declaration {
	264	/* stream mapped by stream_id */
	265	struct ctf_stream_declaration *stream;
	266	/* parent is lexical scope conaining the event scope */
	267	struct declaration_scope *declaration_scope;
	268
	269	struct declaration_struct *context_decl;
	270	struct declaration_struct *fields_decl;
	271
	272	GQuark name;
	273	uint64_t id; /* Numeric identifier within the stream */
	274	uint64_t stream_id;
	275	int loglevel;
	276	GQuark model_emf_uri;
	277
	278	enum { /* Fields populated mask */
	279	CTF_EVENT_name = (1 << 0),
	280	CTF_EVENT_id = (1 << 1),
	281	CTF_EVENT_stream_id = (1 << 2),
	282	CTF_EVENT_loglevel = (1 << 4),
	283	CTF_EVENT_model_emf_uri = (1 << 5),
	284	} field_mask;
	285	};
	286
	287	#endif /* _BABELTRACE_CTF_IR_METADATA_H */