[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;

	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;
2c82c4dc	103
90e19f82 AM	104	LttvTracesetContextPosition sync_position; / position at which to sync the
90e19f82 AM	105	trace context */
dc877563	106	};
	107
	108	struct _LttvTracesetContextClass {
90e19f82	109	GObjectClass parent;
dc877563	110
90e19f82 AM	111	void (init) (LttvTracesetContext self, LttvTraceset *ts);
	112	void (fini) (LttvTracesetContext self);
	113	LttvTracesetContext* (new_traceset_context) (LttvTracesetContext self);
	114	LttvTraceContext* (new_trace_context) (LttvTracesetContext self);
	115	LttvTracefileContext* (new_tracefile_context) (LttvTracesetContext self);
dc877563	116	};
	117
	118	GType lttv_traceset_context_get_type (void);
	119
	120	void lttv_context_init(LttvTracesetContext self, LttvTraceset ts);
	121
	122	void lttv_context_fini(LttvTracesetContext *self);
	123
	124	LttvTracesetContext *
	125	lttv_context_new_traceset_context(LttvTracesetContext *self);
	126
90e19f82	127	LttvTraceContext *
dc877563	128	lttv_context_new_trace_context(LttvTracesetContext *self);
	129
	130	LttvTracefileContext *
	131	lttv_context_new_tracefile_context(LttvTracesetContext *self);
	132
	133
	134	#define LTTV_TRACE_CONTEXT_TYPE (lttv_trace_context_get_type ())
	135	#define LTTV_TRACE_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACE_CONTEXT_TYPE, LttvTraceContext))
	136	#define LTTV_TRACE_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACE_CONTEXT_TYPE, LttvTraceContextClass))
	137	#define LTTV_IS_TRACE_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACE_CONTEXT_TYPE))
	138	#define LTTV_IS_TRACE_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACE_CONTEXT_TYPE))
	139	#define LTTV_TRACE_CONTEXT_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACE_CONTEXT_TYPE, LttvTraceContextClass))
	140
dc877563	141	struct _LttvTraceContext {
90e19f82 AM	142	GObject parent;
	143
	144	LttvTracesetContext *ts_context;
	145	guint index; /* in ts_context->traces */
	146	LttTrace *t;
	147	LttvTrace *vt;
	148	//LttvTracefileContext **tracefiles;
	149	GArray *tracefiles;
	150	LttvAttribute *a;
	151	LttvAttribute *t_a;
	152	TimeInterval time_span;
dc877563	153	};
	154
	155	struct _LttvTraceContextClass {
90e19f82	156	GObjectClass parent;
dc877563	157	};
	158
	159	GType lttv_trace_context_get_type (void);
	160
	161	#define LTTV_TRACEFILE_CONTEXT_TYPE (lttv_tracefile_context_get_type ())
	162	#define LTTV_TRACEFILE_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACEFILE_CONTEXT_TYPE, LttvTracefileContext))
	163	#define LTTV_TRACEFILE_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACEFILE_CONTEXT_TYPE, LttvTracefileContextClass))
	164	#define LTTV_IS_TRACEFILE_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACEFILE_CONTEXT_TYPE))
	165	#define LTTV_IS_TRACEFILE_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACEFILE_CONTEXT_TYPE))
	166	#define LTTV_TRACEFILE_CONTEXT_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACEFILE_CONTEXT_TYPE, LttvTracefileContextClass))
	167
dc877563	168	struct _LttvTracefileContext {
90e19f82	169	GObject parent;
dc877563	170
90e19f82	171	LttvTraceContext *t_context;
eed2ef37	172	// gboolean control;
90e19f82 AM	173	guint index; /* in ts_context->tracefiles */
90e19f82 AM	174	LttTracefile *tf;
eed2ef37	175	// LttEvent *e;
90e19f82 AM	176	LttvHooks *event;
	177	LttvHooksById *event_by_id;
	178	LttTime timestamp;
	179	LttvAttribute *a;
	180	gint target_pid; /* Target PID of the event.
e38d9ea0	181	Updated by state.c. -1 means unset. */
dc877563	182	};
	183
	184	struct _LttvTracefileContextClass {
90e19f82	185	GObjectClass parent;
dc877563	186	};
	187
	188	GType lttv_tracefile_context_get_type (void);
	189
2a2fa4f0	190	/* Run through the events in a traceset in sorted order calling all the
90e19f82 AM	191	hooks appropriately. It starts at the current time and runs until end or
90e19f82 AM	192	nb_events are processed. */
2a2fa4f0	193
308711e5	194	void lttv_process_traceset(LttvTracesetContext *self, LttTime end,
90e19f82	195	unsigned nb_events);
2a2fa4f0	196
8697a616	197	/* Process traceset can also be done in smaller pieces calling begin,
	198	* then seek and middle repeatedly, and end. The middle function return the
	199	* number of events processed. It will be smaller than nb_events if the end time
	200	* or end position is reached. */
2a2fa4f0	201
2a2fa4f0	202
8697a616	203	void lttv_process_traceset_begin(LttvTracesetContext *self,
90e19f82 AM	204	LttvHooks *before_traceset,
	205	LttvHooks *before_trace,
	206	LttvHooks *before_tracefile,
	207	LttvHooks *event,
	208	LttvHooksByIdChannelArray *event_by_id_channel);
8697a616	209
2a2fa4f0	210
8697a616	211	guint lttv_process_traceset_middle(LttvTracesetContext *self,
90e19f82 AM	212	LttTime end,
	213	gulong nb_events,
	214	const LttvTracesetContextPosition *end_position);
8697a616	215
8697a616	216	void lttv_process_traceset_end(LttvTracesetContext *self,
90e19f82 AM	217	LttvHooks *after_traceset,
	218	LttvHooks *after_trace,
	219	LttvHooks *after_tracefile,
	220	LttvHooks *event,
	221	LttvHooksByIdChannelArray *event_by_id_channel);
2a2fa4f0	222
3667f07d YB	223	guint lttv_process_traceset_update(LttvTracesetContext *self);
3667f07d YB	224
308711e5	225
	226	void lttv_process_traceset_seek_time(LttvTracesetContext *self, LttTime start);
	227
800dfee0	228	void lttv_traceset_context_compute_time_span(LttvTracesetContext *self,
90e19f82	229	TimeInterval *time_span);
800dfee0	230
8697a616	231	gboolean lttv_process_traceset_seek_position(LttvTracesetContext *self,
90e19f82	232	const LttvTracesetContextPosition *pos);
8697a616	233
308711e5	234	void lttv_process_trace_seek_time(LttvTraceContext *self, LttTime start);
dc877563	235
dc877563	236	void lttv_traceset_context_add_hooks(LttvTracesetContext *self,
90e19f82 AM	237	LttvHooks *before_traceset,
	238	LttvHooks *before_trace,
	239	LttvHooks *before_tracefile,
	240	LttvHooks *event,
	241	LttvHooksByIdChannelArray *event_by_id_channel);
dc877563	242
dc877563	243	void lttv_traceset_context_remove_hooks(LttvTracesetContext *self,
90e19f82 AM	244	LttvHooks *after_traceset,
	245	LttvHooks *after_trace,
	246	LttvHooks *after_tracefile,
	247	LttvHooks *event,
	248	LttvHooksByIdChannelArray *event_by_id_channel);
dc877563	249
a8c0f09d	250	void lttv_trace_context_add_hooks(LttvTraceContext *self,
90e19f82 AM	251	LttvHooks *before_trace,
	252	LttvHooks *before_tracefile,
	253	LttvHooks *event,
	254	LttvHooksByIdChannelArray *event_by_id_channel);
a8c0f09d	255
a8c0f09d	256	void lttv_trace_context_remove_hooks(LttvTraceContext *self,
90e19f82 AM	257	LttvHooks *after_trace,
	258	LttvHooks *after_tracefile,
	259	LttvHooks *event,
	260	LttvHooksByIdChannelArray *event_by_id_channel);
a8c0f09d	261
a8c0f09d	262	void lttv_tracefile_context_add_hooks(LttvTracefileContext *self,
90e19f82 AM	263	LttvHooks *before_tracefile,
	264	LttvHooks *event,
	265	LttvHooksById *event_by_id);
8697a616	266
a8c0f09d	267
a8c0f09d	268	void lttv_tracefile_context_remove_hooks(LttvTracefileContext *self,
90e19f82 AM	269	LttvHooks *after_tracefile,
	270	LttvHooks *event,
	271	LttvHooksById *event_by_id);
a8c0f09d	272
b445142a	273	typedef struct _LttvTraceHook {
90e19f82 AM	274	LttvHook h;
	275	struct marker_data *mdata;
	276	GQuark channel;
	277	guint16 id; /* id of the marker associated with this hook */
	278	GPtrArray fields; / struct marker_fields pointers */
	279	gpointer hook_data;
14b1ac27	280	} LttvTraceHook;
eed2ef37	281
08fb203b	282	/* Get the head of marker list corresponding to the given trace hook.
3c165eaf	283	*/
f57fd845	284	struct marker_info lttv_trace_hook_get_marker(LttTrace t, LttvTraceHook *th);
b445142a	285
032ba5da	286	/* Remove the hooks from the array. Does not free the array itself. */
032ba5da	287	void lttv_trace_hook_remove_all(GArray **th);
b445142a	288
	289	/* Search in the trace for the id of the named event type within the named
	290	facility. Then, find the three (if non null) named fields. All that
	291	information is then used to fill the LttvTraceHook structure. This
	292	is useful to find the specific id for an event within a trace, for
	293	registering a hook using this structure as event data;
937a4442	294	it already contains the (up to three) needed fields handles.
6418800d	295	Returns the modified LttvTraceHook array.
	296	Prints warnings if events or markers are not found. returns 1 on error,
	297	0 on success.
	298	Adds the hooks to the trace_hooks array.
937a4442	299	*/
937a4442	300
60c5092c	301	int lttv_trace_find_hook(LttTrace *t, GQuark facility_name, GQuark event_name,
90e19f82 AM	302	GQuark fields[], LttvHook h, gpointer hook_data,
90e19f82 AM	303	GArray **trace_hooks);
b445142a	304
775c802c	305	static inline struct marker_field *
	306	lttv_trace_get_hook_field(LttvTraceHook *hook, unsigned int index)
	307	{
	308	return g_ptr_array_index(hook->fields, index);
	309	}
	310
750eb11a	311	#if 0
a496afb7	312	static inline GQuark lttv_merge_facility_event_name(GQuark fac, GQuark ev)
a496afb7	313	{
90e19f82 AM	314	char *tmp;
	315	const char sfac, sev;
	316	GQuark ret;
	317
	318	sfac = g_quark_to_string(fac);
	319	sev = g_quark_to_string(ev);
	320	tmp = g_new(char, strlen(sfac) + strlen(sev) + 3); /* 3: _ \0 \0 */
	321	strcpy(tmp, sfac);
	322	strcat(tmp, "_");
	323	strcat(tmp, sev);
	324	ret = g_quark_from_string(tmp);
	325	g_free(tmp);
	326	return ret;
a496afb7	327	}
750eb11a	328	#endif //0
775c802c	329
90e19f82 AM	330	LttvTracefileContext *
90e19f82 AM	331	lttv_traceset_context_get_current_tfc(LttvTracesetContext *self);
2d262115	332
8b0bbe19	333
90e19f82 AM	334	LttvTracesetContextPosition *
90e19f82 AM	335	lttv_traceset_context_position_new(const LttvTracesetContext *self);
5e2c04a2	336
8697a616	337	void lttv_traceset_context_position_save(const LttvTracesetContext *self,
90e19f82	338	LttvTracesetContextPosition *pos);
8697a616	339
	340	void lttv_traceset_context_position_destroy(LttvTracesetContextPosition *pos);
	341
5e2c04a2	342	void lttv_traceset_context_position_copy(LttvTracesetContextPosition *dest,
90e19f82	343	const LttvTracesetContextPosition *src);
5e2c04a2	344
90e19f82 AM	345	gint
	346	lttv_traceset_context_pos_pos_compare(const LttvTracesetContextPosition *pos1,
	347	const LttvTracesetContextPosition *pos2);
8697a616	348
8697a616	349	gint lttv_traceset_context_ctx_pos_compare(const LttvTracesetContext *self,
90e19f82	350	const LttvTracesetContextPosition *pos2);
8697a616	351
90e19f82 AM	352	LttTime
90e19f82 AM	353	lttv_traceset_context_position_get_time(const LttvTracesetContextPosition *pos);
8b0bbe19	354
27304273	355	gint compare_tracefile(gconstpointer a, gconstpointer b);
8b0bbe19	356
2c82c4dc	357
	358	/* Synchronisation helpers : save/restore synchronization between ltt traces and
	359	* a traceset context. */
18c87975	360	void lttv_process_traceset_synchronize_tracefiles(LttvTracesetContext *tsc);
2c82c4dc	361
18c87975	362	void lttv_process_traceset_get_sync_data(LttvTracesetContext *tsc);
2c82c4dc	363
0bd2f89c	364	/* Seek n events forward and backward (without filtering) : only use these where
	365	* necessary : the seek backward is costy. */
	366
	367	#define BACKWARD_SEEK_MUL 2 /* Multiplication factor of time_offset between
	368	backward seek iterations */
	369
9d227699	370	static const LttTime seek_back_default_offset = { 1, 0 };
33e44b82	371
fb3d6047	372	typedef gboolean check_handler(guint count, gboolean *stop_flag, gpointer data);
04f2543e	373
0bd2f89c	374	guint lttv_process_traceset_seek_n_forward(LttvTracesetContext *self,
90e19f82 AM	375	guint n,
	376	check_handler *check,
	377	gboolean *stop_flag,
	378	LttvFilter *filter1,
	379	LttvFilter *filter2,
	380	LttvFilter *filter3,
	381	gpointer data);
	382
33e44b82	383	typedef void (seek_time_fct)(LttvTracesetContext self, LttTime start);
0bd2f89c	384
33e44b82	385	/* If first_offset is ltt_time_zero, it will choose a default value */
0bd2f89c	386	guint lttv_process_traceset_seek_n_backward(LttvTracesetContext *self,
90e19f82 AM	387	guint n,
	388	LttTime first_offset,
	389	seek_time_fct,
	390	check_handler *check,
	391	gboolean *stop_flag,
	392	LttvFilter *filter1,
	393	LttvFilter *filter2,
	394	LttvFilter *filter3,
	395	gpointer data);
33e44b82	396
775c802c	397	#define FIELD_ARRAY(val...) ((GQuark[]){ val, 0 })
0bd2f89c	398
dc877563	399	#endif // PROCESSTRACE_H