[lttv.git] / lttv / lttv / tracecontext.h

/* This file is part of the Linux Trace Toolkit viewer
 * Copyright (C) 2003-2004 Michel Dagenais
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License Version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, 
 * MA 02111-1307, USA.
 */

#ifndef PROCESSTRACE_H
#define PROCESSTRACE_H

#include <string.h>
#include <lttv/traceset.h>
#include <lttv/attribute.h>
#include <lttv/hook.h>
#include <ltt/ltt.h>
#include <ltt/marker.h>

/* This is the generic part of trace processing. All events within a
   certain time interval are accessed and processing hooks are called for
   each. The events are examined in monotonically increasing time to more
   closely follow the traced system behavior. 

   Hooks are called at several different places during the processing:
   before traceset, after traceset, check trace, before trace, after trace, 
   check tracefile, before tracefile, after tracefile, 
   check_event, before_event, before_event_by_id, 
   after_event, after_event_by_id.

   In each case the "check" hooks are called first to determine if further
   processing of the trace, tracefile or event is wanted. Then, the before
   hooks and the after hooks are called. The before hooks for a traceset
   are called before those for the contained traces, which are called before
   those for the contained tracefiles. The after hooks are called in reverse
   order. The event hooks are called after all the before_tracefile hooks
   and before all the after_tracefile hooks.

   The hooks receive two arguments, the hook_data and call_data. The hook_data
   is specified when the hook is registered and typically links to the
   object registering the hook (e.g. a graphical events viewer). The call_data
   must contain all the context related to the call. The traceset hooks receive
   the LttvTracesetContext provided by the caller. The trace hooks receive
   the LttvTraceContext from the traces array in the LttvTracesetContext.
   The tracefile and event hooks receive the LttvTracefileContext from
   the tracefiles array in the LttvTraceContext. The LttEvent and LttTime
   fields in the tracefile context are set to the current event and current
   event time before calling the event hooks. No other context field is 
   modified.

   The contexts in the traces and tracefiles arrays must be allocated by 
   the caller, either before the call or during the before hooks of the 
   enclosing traceset or trace. The order in the traces array must
   correspond to the lttv_traceset_get function. The order in the tracefiles
   arrays must correspond to the ltt_trace_control_tracefile_get and
   ltt_trace_per_cpu_tracefile_get functions. The traceset, trace and
   tracefile contexts may be subtyped as needed. Indeed, both the contexts
   and the hooks are defined by the caller. */


typedef struct _LttvTracesetContext LttvTracesetContext;
typedef struct _LttvTracesetContextClass LttvTracesetContextClass;

typedef struct _LttvTraceContext LttvTraceContext;
typedef struct _LttvTraceContextClass LttvTraceContextClass;

typedef struct _LttvTracefileContext LttvTracefileContext;
typedef struct _LttvTracefileContextClass LttvTracefileContextClass;

typedef struct _LttvTracesetContextPosition LttvTracesetContextPosition;
typedef struct _LttvTraceContextPosition LttvTraceContextPosition;

#ifndef LTTVFILTER_TYPE_DEFINED
typedef struct _LttvFilter LttvFilter;
#define LTTVFILTER_TYPE_DEFINED
#endif

#define LTTV_TRACESET_CONTEXT_TYPE  (lttv_traceset_context_get_type ())
#define LTTV_TRACESET_CONTEXT(obj)  (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACESET_CONTEXT_TYPE, LttvTracesetContext))
#define LTTV_TRACESET_CONTEXT_CLASS(vtable)  (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACESET_CONTEXT_TYPE, LttvTracesetContextClass))
#define LTTV_IS_TRACESET_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACESET_CONTEXT_TYPE))
#define LTTV_IS_TRACESET_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACESET_CONTEXT_TYPE))
#define LTTV_TRACESET_CONTEXT_GET_CLASS(inst)  (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACESET_CONTEXT_TYPE, LttvTracesetContextClass))

struct _LttvTracesetContext {
	GObject parent;

	LttvTraceset *ts;
	LttvTraceContext **traces;
	LttvAttribute *a;
	LttvAttribute *ts_a;
	TimeInterval time_span;
	GTree *pqueue;
	struct bt_ctf_iter *iter;
	/* TODO ybrosseau: Added for babeltrace proto */
	LttvHooks *event_hooks;

	LttvTracesetContextPosition *sync_position;   /* position at which to sync the
	                                                 trace context */
};

struct _LttvTracesetContextClass {
	GObjectClass parent;

	void (*init) (LttvTracesetContext *self, LttvTraceset *ts);
	void (*fini) (LttvTracesetContext *self);
	LttvTracesetContext* (*new_traceset_context) (LttvTracesetContext *self);
	LttvTraceContext* (*new_trace_context) (LttvTracesetContext *self);
	LttvTracefileContext* (*new_tracefile_context) (LttvTracesetContext *self);
};

GType lttv_traceset_context_get_type (void);

void lttv_context_init(LttvTracesetContext *self, LttvTraceset *ts);

void lttv_context_fini(LttvTracesetContext *self);

LttvTracesetContext *
lttv_context_new_traceset_context(LttvTracesetContext *self);

LttvTraceContext *
lttv_context_new_trace_context(LttvTracesetContext *self);

LttvTracefileContext *
lttv_context_new_tracefile_context(LttvTracesetContext *self);


#define LTTV_TRACE_CONTEXT_TYPE  (lttv_trace_context_get_type ())
#define LTTV_TRACE_CONTEXT(obj)  (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACE_CONTEXT_TYPE, LttvTraceContext))
#define LTTV_TRACE_CONTEXT_CLASS(vtable)  (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACE_CONTEXT_TYPE, LttvTraceContextClass))
#define LTTV_IS_TRACE_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACE_CONTEXT_TYPE))
#define LTTV_IS_TRACE_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACE_CONTEXT_TYPE))
#define LTTV_TRACE_CONTEXT_GET_CLASS(inst)  (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACE_CONTEXT_TYPE, LttvTraceContextClass))

struct _LttvTraceContext {
	GObject parent;

	LttvTracesetContext *ts_context;
	guint index;                /* in ts_context->traces */
	LttTrace *t;
	LttvTrace *vt;
	//LttvTracefileContext **tracefiles;
	GArray *tracefiles;
	LttvAttribute *a;
	LttvAttribute *t_a;
	TimeInterval time_span;
};

struct _LttvTraceContextClass {
	GObjectClass parent;
};

GType lttv_trace_context_get_type (void);

#define LTTV_TRACEFILE_CONTEXT_TYPE  (lttv_tracefile_context_get_type ())
#define LTTV_TRACEFILE_CONTEXT(obj)  (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACEFILE_CONTEXT_TYPE, LttvTracefileContext))
#define LTTV_TRACEFILE_CONTEXT_CLASS(vtable)  (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACEFILE_CONTEXT_TYPE, LttvTracefileContextClass))
#define LTTV_IS_TRACEFILE_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACEFILE_CONTEXT_TYPE))
#define LTTV_IS_TRACEFILE_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACEFILE_CONTEXT_TYPE))
#define LTTV_TRACEFILE_CONTEXT_GET_CLASS(inst)  (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACEFILE_CONTEXT_TYPE, LttvTracefileContextClass))

struct _LttvTracefileContext {
	GObject parent;

	LttvTraceContext *t_context;
 // gboolean control;
	guint index;                /* in ts_context->tracefiles */
	LttTracefile *tf;
 // LttEvent *e;
	LttvHooks *event;
	LttvHooksById *event_by_id;
	LttTime timestamp;
	LttvAttribute *a;
	gint target_pid;          /* Target PID of the event.
				Updated by state.c. -1 means unset. */
};

struct _LttvTracefileContextClass {
	GObjectClass parent;
};

GType lttv_tracefile_context_get_type (void);

/* Run through the events in a traceset in sorted order calling all the
	 hooks appropriately. It starts at the current time and runs until end or
	 nb_events are processed. */

void lttv_process_traceset(LttvTracesetContext *self, LttTime end, 
		unsigned nb_events);

/* Process traceset can also be done in smaller pieces calling begin,
 * then seek and middle repeatedly, and end. The middle function return the
 * number of events processed. It will be smaller than nb_events if the end time
 * or end position is reached. */


void lttv_process_traceset_begin(LttvTracesetContext *self,
		LttvHooks *before_traceset,
		LttvHooks *before_trace,
		LttvHooks *before_tracefile,
		LttvHooks *event,
		LttvHooksByIdChannelArray *event_by_id_channel);


guint lttv_process_traceset_middle(LttvTracesetContext *self,
		LttTime end,
		gulong nb_events,
		const LttvTracesetContextPosition *end_position);

void lttv_process_traceset_end(LttvTracesetContext *self,
		LttvHooks *after_traceset,
		LttvHooks *after_trace,
		LttvHooks *after_tracefile,
		LttvHooks *event,
		LttvHooksByIdChannelArray *event_by_id_channel);

guint lttv_process_traceset_update(LttvTracesetContext *self);


void lttv_process_traceset_seek_time(LttvTracesetContext *self, LttTime start);

void lttv_traceset_context_compute_time_span(LttvTracesetContext *self,
		TimeInterval *time_span);

gboolean lttv_process_traceset_seek_position(LttvTracesetContext *self, 
		const LttvTracesetContextPosition *pos);

void lttv_process_trace_seek_time(LttvTraceContext *self, LttTime start);

void lttv_traceset_context_add_hooks(LttvTracesetContext *self,
		LttvHooks *before_traceset,
		LttvHooks *before_trace,
		LttvHooks *before_tracefile,
		LttvHooks *event,
		LttvHooksByIdChannelArray *event_by_id_channel);

void lttv_traceset_context_remove_hooks(LttvTracesetContext *self,
		LttvHooks *after_traceset,
		LttvHooks *after_trace,
		LttvHooks *after_tracefile,
		LttvHooks *event,
		LttvHooksByIdChannelArray *event_by_id_channel);

void lttv_trace_context_add_hooks(LttvTraceContext *self,
		LttvHooks *before_trace,
		LttvHooks *before_tracefile,
		LttvHooks *event,
		LttvHooksByIdChannelArray *event_by_id_channel);

void lttv_trace_context_remove_hooks(LttvTraceContext *self,
		LttvHooks *after_trace,
		LttvHooks *after_tracefile,
		LttvHooks *event,
		LttvHooksByIdChannelArray *event_by_id_channel);

void lttv_tracefile_context_add_hooks(LttvTracefileContext *self,
		LttvHooks *before_tracefile,
		LttvHooks *event,
		LttvHooksById *event_by_id);


void lttv_tracefile_context_remove_hooks(LttvTracefileContext *self,
		LttvHooks *after_tracefile,
		LttvHooks *event,
		LttvHooksById *event_by_id);

typedef struct _LttvTraceHook {
	LttvHook h;
	struct marker_data *mdata;
	GQuark channel;
	guint16 id;  /* id of the marker associated with this hook */
	GPtrArray *fields;  /* struct marker_fields pointers */
	gpointer hook_data;
} LttvTraceHook;

/* Get the head of marker list corresponding to the given trace hook.
 */
struct marker_info *lttv_trace_hook_get_marker(LttTrace *t, LttvTraceHook *th);

/* Remove the hooks from the array. Does not free the array itself. */
void lttv_trace_hook_remove_all(GArray **th);

/* Search in the trace for the id of the named event type within the named
   facility. Then, find the three (if non null) named fields. All that
   information is then used to fill the LttvTraceHook structure. This
   is useful to find the specific id for an event within a trace, for
   registering a hook using this structure as event data;
   it already contains the (up to three) needed fields handles.
   Returns the modified LttvTraceHook array.
   Prints warnings if events or markers are not found. returns 1 on error,
   0 on success.
   Adds the hooks to the trace_hooks array.
 */

int lttv_trace_find_hook(LttTrace *t, GQuark facility_name, GQuark event_name,
		GQuark fields[], LttvHook h, gpointer hook_data,
		GArray **trace_hooks);

static inline struct marker_field *
lttv_trace_get_hook_field(LttvTraceHook *hook, unsigned int index)
{
	return g_ptr_array_index(hook->fields, index);
}

#if 0
static inline GQuark lttv_merge_facility_event_name(GQuark fac, GQuark ev)
{
	char *tmp;
	const char *sfac, *sev;
	GQuark ret;

	sfac = g_quark_to_string(fac);
	sev = g_quark_to_string(ev);
	tmp = g_new(char, strlen(sfac) + strlen(sev) + 3); /* 3: _ \0 \0 */
	strcpy(tmp, sfac);
	strcat(tmp, "_");
	strcat(tmp, sev);
	ret = g_quark_from_string(tmp);
	g_free(tmp);
	return ret;
}
#endif //0

LttvTracefileContext *
lttv_traceset_context_get_current_tfc(LttvTracesetContext *self);


LttvTracesetContextPosition *
lttv_traceset_context_position_new(const LttvTracesetContext *self);

void lttv_traceset_context_position_save(const LttvTracesetContext *self,
		LttvTracesetContextPosition *pos);

void lttv_traceset_context_position_destroy(LttvTracesetContextPosition *pos);

void lttv_traceset_context_position_copy(LttvTracesetContextPosition *dest,
		const LttvTracesetContextPosition *src);

gint
lttv_traceset_context_pos_pos_compare(const LttvTracesetContextPosition *pos1,
		const LttvTracesetContextPosition *pos2);

gint lttv_traceset_context_ctx_pos_compare(const LttvTracesetContext *self,
		const LttvTracesetContextPosition *pos2);

LttTime
lttv_traceset_context_position_get_time(const LttvTracesetContextPosition *pos);

gint compare_tracefile(gconstpointer a, gconstpointer b);


/* Synchronisation helpers : save/restore synchronization between ltt traces and
 * a traceset context. */
void lttv_process_traceset_synchronize_tracefiles(LttvTracesetContext *tsc);

void lttv_process_traceset_get_sync_data(LttvTracesetContext *tsc);

/* Seek n events forward and backward (without filtering) : only use these where
 * necessary : the seek backward is costy. */

#define BACKWARD_SEEK_MUL 2 /* Multiplication factor of time_offset between
                               backward seek iterations */

static const LttTime seek_back_default_offset = { 1, 0 };

typedef gboolean check_handler(guint count, gboolean *stop_flag, gpointer data);

guint lttv_process_traceset_seek_n_forward(LttvTracesetContext *self,
		guint n,
		check_handler *check,
		gboolean *stop_flag,
		LttvFilter *filter1,
		LttvFilter *filter2,
		LttvFilter *filter3,
		gpointer data);

typedef void (*seek_time_fct)(LttvTracesetContext *self, LttTime start);

/* If first_offset is ltt_time_zero, it will choose a default value */
guint lttv_process_traceset_seek_n_backward(LttvTracesetContext *self,
		guint n,
		LttTime first_offset,
		seek_time_fct,
		check_handler *check,
		gboolean *stop_flag,
		LttvFilter *filter1,
		LttvFilter *filter2,
		LttvFilter *filter3,
		gpointer data);

#define FIELD_ARRAY(val...) ((GQuark[]){ val, 0 })

#endif // PROCESSTRACE_H
Commit	Line	Data
9c312311	1	/* This file is part of the Linux Trace Toolkit viewer
	2	* Copyright (C) 2003-2004 Michel Dagenais
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License Version 2 as
	6	* published by the Free Software Foundation;
	7	*
	8	* This program is distributed in the hope that it will be useful,
	9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	* GNU General Public License for more details.
	12	*
	13	* You should have received a copy of the GNU General Public License
	14	* along with this program; if not, write to the Free Software
	15	* Foundation, Inc., 59 Temple Place - Suite 330, Boston,
	16	* MA 02111-1307, USA.
	17	*/
	18
dc877563	19	#ifndef PROCESSTRACE_H
	20	#define PROCESSTRACE_H
	21
a496afb7	22	#include <string.h>
ffd54a90	23	#include <lttv/traceset.h>
dc877563	24	#include <lttv/attribute.h>
	25	#include <lttv/hook.h>
	26	#include <ltt/ltt.h>
bb38a290	27	#include <ltt/marker.h>
dc877563	28
	29	/* This is the generic part of trace processing. All events within a
	30	certain time interval are accessed and processing hooks are called for
	31	each. The events are examined in monotonically increasing time to more
	32	closely follow the traced system behavior.
	33
	34	Hooks are called at several different places during the processing:
	35	before traceset, after traceset, check trace, before trace, after trace,
	36	check tracefile, before tracefile, after tracefile,
	37	check_event, before_event, before_event_by_id,
	38	after_event, after_event_by_id.
	39
	40	In each case the "check" hooks are called first to determine if further
	41	processing of the trace, tracefile or event is wanted. Then, the before
	42	hooks and the after hooks are called. The before hooks for a traceset
	43	are called before those for the contained traces, which are called before
	44	those for the contained tracefiles. The after hooks are called in reverse
	45	order. The event hooks are called after all the before_tracefile hooks
	46	and before all the after_tracefile hooks.
	47
	48	The hooks receive two arguments, the hook_data and call_data. The hook_data
	49	is specified when the hook is registered and typically links to the
	50	object registering the hook (e.g. a graphical events viewer). The call_data
	51	must contain all the context related to the call. The traceset hooks receive
	52	the LttvTracesetContext provided by the caller. The trace hooks receive
	53	the LttvTraceContext from the traces array in the LttvTracesetContext.
	54	The tracefile and event hooks receive the LttvTracefileContext from
	55	the tracefiles array in the LttvTraceContext. The LttEvent and LttTime
	56	fields in the tracefile context are set to the current event and current
	57	event time before calling the event hooks. No other context field is
	58	modified.
	59
	60	The contexts in the traces and tracefiles arrays must be allocated by
	61	the caller, either before the call or during the before hooks of the
	62	enclosing traceset or trace. The order in the traces array must
	63	correspond to the lttv_traceset_get function. The order in the tracefiles
	64	arrays must correspond to the ltt_trace_control_tracefile_get and
	65	ltt_trace_per_cpu_tracefile_get functions. The traceset, trace and
	66	tracefile contexts may be subtyped as needed. Indeed, both the contexts
	67	and the hooks are defined by the caller. */
	68
ffd54a90	69
	70	typedef struct _LttvTracesetContext LttvTracesetContext;
	71	typedef struct _LttvTracesetContextClass LttvTracesetContextClass;
	72
	73	typedef struct _LttvTraceContext LttvTraceContext;
	74	typedef struct _LttvTraceContextClass LttvTraceContextClass;
	75
	76	typedef struct _LttvTracefileContext LttvTracefileContext;
	77	typedef struct _LttvTracefileContextClass LttvTracefileContextClass;
	78
8697a616	79	typedef struct _LttvTracesetContextPosition LttvTracesetContextPosition;
	80	typedef struct _LttvTraceContextPosition LttvTraceContextPosition;
	81
33e44b82	82	#ifndef LTTVFILTER_TYPE_DEFINED
	83	typedef struct _LttvFilter LttvFilter;
	84	#define LTTVFILTER_TYPE_DEFINED
	85	#endif
	86
dc877563	87	#define LTTV_TRACESET_CONTEXT_TYPE (lttv_traceset_context_get_type ())
	88	#define LTTV_TRACESET_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACESET_CONTEXT_TYPE, LttvTracesetContext))
	89	#define LTTV_TRACESET_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACESET_CONTEXT_TYPE, LttvTracesetContextClass))
	90	#define LTTV_IS_TRACESET_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACESET_CONTEXT_TYPE))
	91	#define LTTV_IS_TRACESET_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACESET_CONTEXT_TYPE))
	92	#define LTTV_TRACESET_CONTEXT_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACESET_CONTEXT_TYPE, LttvTracesetContextClass))
	93
dc877563	94	struct _LttvTracesetContext {
90e19f82	95	GObject parent;
dc877563	96
90e19f82 AM	97	LttvTraceset *ts;
	98	LttvTraceContext **traces;
	99	LttvAttribute *a;
	100	LttvAttribute *ts_a;
	101	TimeInterval time_span;
	102	GTree *pqueue;
922581a4 YB	103	struct bt_ctf_iter *iter;
	104	/* TODO ybrosseau: Added for babeltrace proto */
	105	LttvHooks *event_hooks;
2c82c4dc	106
90e19f82 AM	107	LttvTracesetContextPosition sync_position; / position at which to sync the
90e19f82 AM	108	trace context */
dc877563	109	};
	110
	111	struct _LttvTracesetContextClass {
90e19f82	112	GObjectClass parent;
dc877563	113
90e19f82 AM	114	void (init) (LttvTracesetContext self, LttvTraceset *ts);
	115	void (fini) (LttvTracesetContext self);
	116	LttvTracesetContext* (new_traceset_context) (LttvTracesetContext self);
	117	LttvTraceContext* (new_trace_context) (LttvTracesetContext self);
	118	LttvTracefileContext* (new_tracefile_context) (LttvTracesetContext self);
dc877563	119	};
	120
	121	GType lttv_traceset_context_get_type (void);
	122
	123	void lttv_context_init(LttvTracesetContext self, LttvTraceset ts);
	124
	125	void lttv_context_fini(LttvTracesetContext *self);
	126
	127	LttvTracesetContext *
	128	lttv_context_new_traceset_context(LttvTracesetContext *self);
	129
90e19f82	130	LttvTraceContext *
dc877563	131	lttv_context_new_trace_context(LttvTracesetContext *self);
	132
	133	LttvTracefileContext *
	134	lttv_context_new_tracefile_context(LttvTracesetContext *self);
	135
	136
	137	#define LTTV_TRACE_CONTEXT_TYPE (lttv_trace_context_get_type ())
	138	#define LTTV_TRACE_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACE_CONTEXT_TYPE, LttvTraceContext))
	139	#define LTTV_TRACE_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACE_CONTEXT_TYPE, LttvTraceContextClass))
	140	#define LTTV_IS_TRACE_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACE_CONTEXT_TYPE))
	141	#define LTTV_IS_TRACE_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACE_CONTEXT_TYPE))
	142	#define LTTV_TRACE_CONTEXT_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACE_CONTEXT_TYPE, LttvTraceContextClass))
	143
dc877563	144	struct _LttvTraceContext {
90e19f82 AM	145	GObject parent;
	146
	147	LttvTracesetContext *ts_context;
	148	guint index; /* in ts_context->traces */
	149	LttTrace *t;
	150	LttvTrace *vt;
	151	//LttvTracefileContext **tracefiles;
	152	GArray *tracefiles;
	153	LttvAttribute *a;
	154	LttvAttribute *t_a;
	155	TimeInterval time_span;
dc877563	156	};
	157
	158	struct _LttvTraceContextClass {
90e19f82	159	GObjectClass parent;
dc877563	160	};
	161
	162	GType lttv_trace_context_get_type (void);
	163
	164	#define LTTV_TRACEFILE_CONTEXT_TYPE (lttv_tracefile_context_get_type ())
	165	#define LTTV_TRACEFILE_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACEFILE_CONTEXT_TYPE, LttvTracefileContext))
	166	#define LTTV_TRACEFILE_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACEFILE_CONTEXT_TYPE, LttvTracefileContextClass))
	167	#define LTTV_IS_TRACEFILE_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACEFILE_CONTEXT_TYPE))
	168	#define LTTV_IS_TRACEFILE_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACEFILE_CONTEXT_TYPE))
	169	#define LTTV_TRACEFILE_CONTEXT_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACEFILE_CONTEXT_TYPE, LttvTracefileContextClass))
	170
dc877563	171	struct _LttvTracefileContext {
90e19f82	172	GObject parent;
dc877563	173
90e19f82	174	LttvTraceContext *t_context;
eed2ef37	175	// gboolean control;
90e19f82 AM	176	guint index; /* in ts_context->tracefiles */
90e19f82 AM	177	LttTracefile *tf;
eed2ef37	178	// LttEvent *e;
90e19f82 AM	179	LttvHooks *event;
	180	LttvHooksById *event_by_id;
	181	LttTime timestamp;
	182	LttvAttribute *a;
	183	gint target_pid; /* Target PID of the event.
e38d9ea0	184	Updated by state.c. -1 means unset. */
dc877563	185	};
	186
	187	struct _LttvTracefileContextClass {
90e19f82	188	GObjectClass parent;
dc877563	189	};
	190
	191	GType lttv_tracefile_context_get_type (void);
	192
2a2fa4f0	193	/* Run through the events in a traceset in sorted order calling all the
90e19f82 AM	194	hooks appropriately. It starts at the current time and runs until end or
90e19f82 AM	195	nb_events are processed. */
2a2fa4f0	196
308711e5	197	void lttv_process_traceset(LttvTracesetContext *self, LttTime end,
90e19f82	198	unsigned nb_events);
2a2fa4f0	199
8697a616	200	/* Process traceset can also be done in smaller pieces calling begin,
	201	* then seek and middle repeatedly, and end. The middle function return the
	202	* number of events processed. It will be smaller than nb_events if the end time
	203	* or end position is reached. */
2a2fa4f0	204
2a2fa4f0	205
8697a616	206	void lttv_process_traceset_begin(LttvTracesetContext *self,
90e19f82 AM	207	LttvHooks *before_traceset,
	208	LttvHooks *before_trace,
	209	LttvHooks *before_tracefile,
	210	LttvHooks *event,
	211	LttvHooksByIdChannelArray *event_by_id_channel);
8697a616	212
2a2fa4f0	213
8697a616	214	guint lttv_process_traceset_middle(LttvTracesetContext *self,
90e19f82 AM	215	LttTime end,
	216	gulong nb_events,
	217	const LttvTracesetContextPosition *end_position);
8697a616	218
8697a616	219	void lttv_process_traceset_end(LttvTracesetContext *self,
90e19f82 AM	220	LttvHooks *after_traceset,
	221	LttvHooks *after_trace,
	222	LttvHooks *after_tracefile,
	223	LttvHooks *event,
	224	LttvHooksByIdChannelArray *event_by_id_channel);
2a2fa4f0	225
3667f07d YB	226	guint lttv_process_traceset_update(LttvTracesetContext *self);
3667f07d YB	227
308711e5	228
	229	void lttv_process_traceset_seek_time(LttvTracesetContext *self, LttTime start);
	230
800dfee0	231	void lttv_traceset_context_compute_time_span(LttvTracesetContext *self,
90e19f82	232	TimeInterval *time_span);
800dfee0	233
8697a616	234	gboolean lttv_process_traceset_seek_position(LttvTracesetContext *self,
90e19f82	235	const LttvTracesetContextPosition *pos);
8697a616	236
308711e5	237	void lttv_process_trace_seek_time(LttvTraceContext *self, LttTime start);
dc877563	238
dc877563	239	void lttv_traceset_context_add_hooks(LttvTracesetContext *self,
90e19f82 AM	240	LttvHooks *before_traceset,
	241	LttvHooks *before_trace,
	242	LttvHooks *before_tracefile,
	243	LttvHooks *event,
	244	LttvHooksByIdChannelArray *event_by_id_channel);
dc877563	245
dc877563	246	void lttv_traceset_context_remove_hooks(LttvTracesetContext *self,
90e19f82 AM	247	LttvHooks *after_traceset,
	248	LttvHooks *after_trace,
	249	LttvHooks *after_tracefile,
	250	LttvHooks *event,
	251	LttvHooksByIdChannelArray *event_by_id_channel);
dc877563	252
a8c0f09d	253	void lttv_trace_context_add_hooks(LttvTraceContext *self,
90e19f82 AM	254	LttvHooks *before_trace,
	255	LttvHooks *before_tracefile,
	256	LttvHooks *event,
	257	LttvHooksByIdChannelArray *event_by_id_channel);
a8c0f09d	258
a8c0f09d	259	void lttv_trace_context_remove_hooks(LttvTraceContext *self,
90e19f82 AM	260	LttvHooks *after_trace,
	261	LttvHooks *after_tracefile,
	262	LttvHooks *event,
	263	LttvHooksByIdChannelArray *event_by_id_channel);
a8c0f09d	264
a8c0f09d	265	void lttv_tracefile_context_add_hooks(LttvTracefileContext *self,
90e19f82 AM	266	LttvHooks *before_tracefile,
	267	LttvHooks *event,
	268	LttvHooksById *event_by_id);
8697a616	269
a8c0f09d	270
a8c0f09d	271	void lttv_tracefile_context_remove_hooks(LttvTracefileContext *self,
90e19f82 AM	272	LttvHooks *after_tracefile,
	273	LttvHooks *event,
	274	LttvHooksById *event_by_id);
a8c0f09d	275
b445142a	276	typedef struct _LttvTraceHook {
90e19f82 AM	277	LttvHook h;
	278	struct marker_data *mdata;
	279	GQuark channel;
	280	guint16 id; /* id of the marker associated with this hook */
	281	GPtrArray fields; / struct marker_fields pointers */
	282	gpointer hook_data;
14b1ac27	283	} LttvTraceHook;
eed2ef37	284
08fb203b	285	/* Get the head of marker list corresponding to the given trace hook.
3c165eaf	286	*/
f57fd845	287	struct marker_info lttv_trace_hook_get_marker(LttTrace t, LttvTraceHook *th);
b445142a	288
032ba5da	289	/* Remove the hooks from the array. Does not free the array itself. */
032ba5da	290	void lttv_trace_hook_remove_all(GArray **th);
b445142a	291
	292	/* Search in the trace for the id of the named event type within the named
	293	facility. Then, find the three (if non null) named fields. All that
	294	information is then used to fill the LttvTraceHook structure. This
	295	is useful to find the specific id for an event within a trace, for
	296	registering a hook using this structure as event data;
937a4442	297	it already contains the (up to three) needed fields handles.
6418800d	298	Returns the modified LttvTraceHook array.
	299	Prints warnings if events or markers are not found. returns 1 on error,
	300	0 on success.
	301	Adds the hooks to the trace_hooks array.
937a4442	302	*/
937a4442	303
60c5092c	304	int lttv_trace_find_hook(LttTrace *t, GQuark facility_name, GQuark event_name,
90e19f82 AM	305	GQuark fields[], LttvHook h, gpointer hook_data,
90e19f82 AM	306	GArray **trace_hooks);
b445142a	307
775c802c	308	static inline struct marker_field *
	309	lttv_trace_get_hook_field(LttvTraceHook *hook, unsigned int index)
	310	{
	311	return g_ptr_array_index(hook->fields, index);
	312	}
	313
750eb11a	314	#if 0
a496afb7	315	static inline GQuark lttv_merge_facility_event_name(GQuark fac, GQuark ev)
a496afb7	316	{
90e19f82 AM	317	char *tmp;
	318	const char sfac, sev;
	319	GQuark ret;
	320
	321	sfac = g_quark_to_string(fac);
	322	sev = g_quark_to_string(ev);
	323	tmp = g_new(char, strlen(sfac) + strlen(sev) + 3); /* 3: _ \0 \0 */
	324	strcpy(tmp, sfac);
	325	strcat(tmp, "_");
	326	strcat(tmp, sev);
	327	ret = g_quark_from_string(tmp);
	328	g_free(tmp);
	329	return ret;
a496afb7	330	}
750eb11a	331	#endif //0
775c802c	332
90e19f82 AM	333	LttvTracefileContext *
90e19f82 AM	334	lttv_traceset_context_get_current_tfc(LttvTracesetContext *self);
2d262115	335
8b0bbe19	336
90e19f82 AM	337	LttvTracesetContextPosition *
90e19f82 AM	338	lttv_traceset_context_position_new(const LttvTracesetContext *self);
5e2c04a2	339
8697a616	340	void lttv_traceset_context_position_save(const LttvTracesetContext *self,
90e19f82	341	LttvTracesetContextPosition *pos);
8697a616	342
	343	void lttv_traceset_context_position_destroy(LttvTracesetContextPosition *pos);
	344
5e2c04a2	345	void lttv_traceset_context_position_copy(LttvTracesetContextPosition *dest,
90e19f82	346	const LttvTracesetContextPosition *src);
5e2c04a2	347
90e19f82 AM	348	gint
	349	lttv_traceset_context_pos_pos_compare(const LttvTracesetContextPosition *pos1,
	350	const LttvTracesetContextPosition *pos2);
8697a616	351
8697a616	352	gint lttv_traceset_context_ctx_pos_compare(const LttvTracesetContext *self,
90e19f82	353	const LttvTracesetContextPosition *pos2);
8697a616	354
90e19f82 AM	355	LttTime
90e19f82 AM	356	lttv_traceset_context_position_get_time(const LttvTracesetContextPosition *pos);
8b0bbe19	357
27304273	358	gint compare_tracefile(gconstpointer a, gconstpointer b);
8b0bbe19	359
2c82c4dc	360
	361	/* Synchronisation helpers : save/restore synchronization between ltt traces and
	362	* a traceset context. */
18c87975	363	void lttv_process_traceset_synchronize_tracefiles(LttvTracesetContext *tsc);
2c82c4dc	364
18c87975	365	void lttv_process_traceset_get_sync_data(LttvTracesetContext *tsc);
2c82c4dc	366
0bd2f89c	367	/* Seek n events forward and backward (without filtering) : only use these where
	368	* necessary : the seek backward is costy. */
	369
	370	#define BACKWARD_SEEK_MUL 2 /* Multiplication factor of time_offset between
	371	backward seek iterations */
	372
9d227699	373	static const LttTime seek_back_default_offset = { 1, 0 };
33e44b82	374
fb3d6047	375	typedef gboolean check_handler(guint count, gboolean *stop_flag, gpointer data);
04f2543e	376
0bd2f89c	377	guint lttv_process_traceset_seek_n_forward(LttvTracesetContext *self,
90e19f82 AM	378	guint n,
	379	check_handler *check,
	380	gboolean *stop_flag,
	381	LttvFilter *filter1,
	382	LttvFilter *filter2,
	383	LttvFilter *filter3,
	384	gpointer data);
	385
33e44b82	386	typedef void (seek_time_fct)(LttvTracesetContext self, LttTime start);
0bd2f89c	387
33e44b82	388	/* If first_offset is ltt_time_zero, it will choose a default value */
0bd2f89c	389	guint lttv_process_traceset_seek_n_backward(LttvTracesetContext *self,
90e19f82 AM	390	guint n,
	391	LttTime first_offset,
	392	seek_time_fct,
	393	check_handler *check,
	394	gboolean *stop_flag,
	395	LttvFilter *filter1,
	396	LttvFilter *filter2,
	397	LttvFilter *filter3,
	398	gpointer data);
33e44b82	399
775c802c	400	#define FIELD_ARRAY(val...) ((GQuark[]){ val, 0 })
0bd2f89c	401
dc877563	402	#endif // PROCESSTRACE_H