[lttv.git] / ltt / branches / poly / 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 <lttv/traceset.h>
#include <lttv/attribute.h>
#include <lttv/hook.h>
#include <ltt/ltt.h>
#include <ltt/markers.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,
                                 LttvHooksById   *event_by_id);


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

void lttv_process_traceset_end(LttvTracesetContext *self,
                               LttvHooks           *after_traceset,
                               LttvHooks           *after_trace,
                               LttvHooks           *after_tracefile,
                               LttvHooks           *event,
                               LttvHooksById       *event_by_id);


void lttv_process_traceset_seek_time(LttvTracesetContext *self, LttTime start);

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,
    LttvHooksById *event_by_id);

void lttv_traceset_context_remove_hooks(LttvTracesetContext *self,
    LttvHooks *after_traceset,
    LttvHooks *after_trace, 
    LttvHooks *after_tracefile,
    LttvHooks *event, 
    LttvHooksById *event_by_id);

void lttv_trace_context_add_hooks(LttvTraceContext *self,
    LttvHooks *before_trace, 
    LttvHooks *before_tracefile,
    LttvHooks *event, 
    LttvHooksById *event_by_id);

void lttv_trace_context_remove_hooks(LttvTraceContext *self,
    LttvHooks *after_trace, 
    LttvHooks *after_tracefile,
    LttvHooks *event, 
    LttvHooksById *event_by_id);

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);


void lttv_tracefile_context_add_hooks_by_id(LttvTracefileContext *self,
					    unsigned i,
					    LttvHooks *event_by_id);

void lttv_tracefile_context_remove_hooks_by_id(LttvTracefileContext *self,
					       unsigned i);

/* A LttvTraceHook has two arrays of LttvTraceHookByFacility,
 * indexed by facility ID and a simple array used to walk all the hooks */
typedef struct _LttvTraceHook {
  LttvHook h;
  guint id;
  LttField *f1;
  LttField *f2;
  LttField *f3;
  gpointer hook_data;
} LttvTraceHookByFacility;


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

void lttv_trace_hook_destroy(LttvTraceHook *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. */
 
gint lttv_trace_find_hook(LttTrace *t, GQuark event_type,
    GQuark field1, GQuark field2, GQuark field3, LttvHook h,
    gpointer hook_data, LttvTraceHook *th);

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);


#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
ffd54a90	22	#include <lttv/traceset.h>
dc877563	23	#include <lttv/attribute.h>
	24	#include <lttv/hook.h>
	25	#include <ltt/ltt.h>
3c165eaf	26	#include <ltt/markers.h>
dc877563	27
	28	/* This is the generic part of trace processing. All events within a
	29	certain time interval are accessed and processing hooks are called for
	30	each. The events are examined in monotonically increasing time to more
	31	closely follow the traced system behavior.
	32
	33	Hooks are called at several different places during the processing:
	34	before traceset, after traceset, check trace, before trace, after trace,
	35	check tracefile, before tracefile, after tracefile,
	36	check_event, before_event, before_event_by_id,
	37	after_event, after_event_by_id.
	38
	39	In each case the "check" hooks are called first to determine if further
	40	processing of the trace, tracefile or event is wanted. Then, the before
	41	hooks and the after hooks are called. The before hooks for a traceset
	42	are called before those for the contained traces, which are called before
	43	those for the contained tracefiles. The after hooks are called in reverse
	44	order. The event hooks are called after all the before_tracefile hooks
	45	and before all the after_tracefile hooks.
	46
	47	The hooks receive two arguments, the hook_data and call_data. The hook_data
	48	is specified when the hook is registered and typically links to the
	49	object registering the hook (e.g. a graphical events viewer). The call_data
	50	must contain all the context related to the call. The traceset hooks receive
	51	the LttvTracesetContext provided by the caller. The trace hooks receive
	52	the LttvTraceContext from the traces array in the LttvTracesetContext.
	53	The tracefile and event hooks receive the LttvTracefileContext from
	54	the tracefiles array in the LttvTraceContext. The LttEvent and LttTime
	55	fields in the tracefile context are set to the current event and current
	56	event time before calling the event hooks. No other context field is
	57	modified.
	58
	59	The contexts in the traces and tracefiles arrays must be allocated by
	60	the caller, either before the call or during the before hooks of the
	61	enclosing traceset or trace. The order in the traces array must
	62	correspond to the lttv_traceset_get function. The order in the tracefiles
	63	arrays must correspond to the ltt_trace_control_tracefile_get and
	64	ltt_trace_per_cpu_tracefile_get functions. The traceset, trace and
	65	tracefile contexts may be subtyped as needed. Indeed, both the contexts
	66	and the hooks are defined by the caller. */
	67
ffd54a90	68
	69	typedef struct _LttvTracesetContext LttvTracesetContext;
	70	typedef struct _LttvTracesetContextClass LttvTracesetContextClass;
	71
	72	typedef struct _LttvTraceContext LttvTraceContext;
	73	typedef struct _LttvTraceContextClass LttvTraceContextClass;
	74
	75	typedef struct _LttvTracefileContext LttvTracefileContext;
	76	typedef struct _LttvTracefileContextClass LttvTracefileContextClass;
	77
8697a616	78	typedef struct _LttvTracesetContextPosition LttvTracesetContextPosition;
	79	typedef struct _LttvTraceContextPosition LttvTraceContextPosition;
	80
33e44b82	81	#ifndef LTTVFILTER_TYPE_DEFINED
	82	typedef struct _LttvFilter LttvFilter;
	83	#define LTTVFILTER_TYPE_DEFINED
	84	#endif
	85
dc877563	86	#define LTTV_TRACESET_CONTEXT_TYPE (lttv_traceset_context_get_type ())
	87	#define LTTV_TRACESET_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACESET_CONTEXT_TYPE, LttvTracesetContext))
	88	#define LTTV_TRACESET_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACESET_CONTEXT_TYPE, LttvTracesetContextClass))
	89	#define LTTV_IS_TRACESET_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACESET_CONTEXT_TYPE))
	90	#define LTTV_IS_TRACESET_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACESET_CONTEXT_TYPE))
	91	#define LTTV_TRACESET_CONTEXT_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACESET_CONTEXT_TYPE, LttvTracesetContextClass))
	92
dc877563	93	struct _LttvTracesetContext {
	94	GObject parent;
	95
	96	LttvTraceset *ts;
dc877563	97	LttvTraceContext **traces;
dc877563	98	LttvAttribute *a;
308711e5	99	LttvAttribute *ts_a;
8697a616	100	TimeInterval time_span;
2a2fa4f0	101	GTree *pqueue;
2c82c4dc	102
18c87975	103	LttvTracesetContextPosition sync_position; / position at which to sync the
18c87975	104	trace context */
dc877563	105	};
	106
	107	struct _LttvTracesetContextClass {
	108	GObjectClass parent;
	109
	110	void (init) (LttvTracesetContext self, LttvTraceset *ts);
	111	void (fini) (LttvTracesetContext self);
	112	LttvTracesetContext* (new_traceset_context) (LttvTracesetContext self);
	113	LttvTraceContext* (new_trace_context) (LttvTracesetContext self);
	114	LttvTracefileContext* (new_tracefile_context) (LttvTracesetContext self);
	115	};
	116
	117	GType lttv_traceset_context_get_type (void);
	118
	119	void lttv_context_init(LttvTracesetContext self, LttvTraceset ts);
	120
	121	void lttv_context_fini(LttvTracesetContext *self);
	122
	123	LttvTracesetContext *
	124	lttv_context_new_traceset_context(LttvTracesetContext *self);
	125
	126	LttvTraceContext *
	127	lttv_context_new_trace_context(LttvTracesetContext *self);
	128
	129	LttvTracefileContext *
	130	lttv_context_new_tracefile_context(LttvTracesetContext *self);
	131
	132
	133	#define LTTV_TRACE_CONTEXT_TYPE (lttv_trace_context_get_type ())
	134	#define LTTV_TRACE_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACE_CONTEXT_TYPE, LttvTraceContext))
	135	#define LTTV_TRACE_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACE_CONTEXT_TYPE, LttvTraceContextClass))
	136	#define LTTV_IS_TRACE_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACE_CONTEXT_TYPE))
	137	#define LTTV_IS_TRACE_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACE_CONTEXT_TYPE))
	138	#define LTTV_TRACE_CONTEXT_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACE_CONTEXT_TYPE, LttvTraceContextClass))
	139
dc877563	140	struct _LttvTraceContext {
	141	GObject parent;
	142
	143	LttvTracesetContext *ts_context;
	144	guint index; /* in ts_context->traces */
ffd54a90	145	LttTrace *t;
308711e5	146	LttvTrace *vt;
eed2ef37	147	//LttvTracefileContext **tracefiles;
eed2ef37	148	GArray *tracefiles;
dc877563	149	LttvAttribute *a;
308711e5	150	LttvAttribute *t_a;
14aecf75	151	TimeInterval time_span;
dc877563	152	};
	153
	154	struct _LttvTraceContextClass {
	155	GObjectClass parent;
	156	};
	157
	158	GType lttv_trace_context_get_type (void);
	159
	160	#define LTTV_TRACEFILE_CONTEXT_TYPE (lttv_tracefile_context_get_type ())
	161	#define LTTV_TRACEFILE_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACEFILE_CONTEXT_TYPE, LttvTracefileContext))
	162	#define LTTV_TRACEFILE_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_CAST ((vtable), LTTV_TRACEFILE_CONTEXT_TYPE, LttvTracefileContextClass))
	163	#define LTTV_IS_TRACEFILE_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), LTTV_TRACEFILE_CONTEXT_TYPE))
	164	#define LTTV_IS_TRACEFILE_CONTEXT_CLASS(vtable) (G_TYPE_CHECK_CLASS_TYPE ((vtable), LTTV_TRACEFILE_CONTEXT_TYPE))
	165	#define LTTV_TRACEFILE_CONTEXT_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), LTTV_TRACEFILE_CONTEXT_TYPE, LttvTracefileContextClass))
	166
dc877563	167	struct _LttvTracefileContext {
	168	GObject parent;
	169
	170	LttvTraceContext *t_context;
eed2ef37	171	// gboolean control;
dbb7bb09	172	guint index; /* in ts_context->tracefiles */
ffd54a90	173	LttTracefile *tf;
eed2ef37	174	// LttEvent *e;
8697a616	175	LttvHooks *event;
8697a616	176	LttvHooksById *event_by_id;
ffd54a90	177	LttTime timestamp;
dc877563	178	LttvAttribute *a;
e38d9ea0	179	gint target_pid; /* Target PID of the event.
e38d9ea0	180	Updated by state.c. -1 means unset. */
dc877563	181	};
	182
	183	struct _LttvTracefileContextClass {
	184	GObjectClass parent;
	185	};
	186
	187	GType lttv_tracefile_context_get_type (void);
	188
2a2fa4f0	189	/* Run through the events in a traceset in sorted order calling all the
	190	hooks appropriately. It starts at the current time and runs until end or
	191	nb_events are processed. */
	192
308711e5	193	void lttv_process_traceset(LttvTracesetContext *self, LttTime end,
2a2fa4f0	194	unsigned nb_events);
2a2fa4f0	195
8697a616	196	/* Process traceset can also be done in smaller pieces calling begin,
	197	* then seek and middle repeatedly, and end. The middle function return the
	198	* number of events processed. It will be smaller than nb_events if the end time
	199	* or end position is reached. */
2a2fa4f0	200
2a2fa4f0	201
8697a616	202	void lttv_process_traceset_begin(LttvTracesetContext *self,
	203	LttvHooks *before_traceset,
	204	LttvHooks *before_trace,
	205	LttvHooks *before_tracefile,
	206	LttvHooks *event,
	207	LttvHooksById *event_by_id);
	208
2a2fa4f0	209
8697a616	210	guint lttv_process_traceset_middle(LttvTracesetContext *self,
8697a616	211	LttTime end,
b8eccacd	212	guint nb_events,
8697a616	213	const LttvTracesetContextPosition *end_position);
	214
	215	void lttv_process_traceset_end(LttvTracesetContext *self,
	216	LttvHooks *after_traceset,
	217	LttvHooks *after_trace,
	218	LttvHooks *after_tracefile,
	219	LttvHooks *event,
	220	LttvHooksById *event_by_id);
2a2fa4f0	221
308711e5	222
	223	void lttv_process_traceset_seek_time(LttvTracesetContext *self, LttTime start);
	224
8697a616	225	gboolean lttv_process_traceset_seek_position(LttvTracesetContext *self,
	226	const LttvTracesetContextPosition *pos);
	227
308711e5	228	void lttv_process_trace_seek_time(LttvTraceContext *self, LttTime start);
dc877563	229
dc877563	230	void lttv_traceset_context_add_hooks(LttvTracesetContext *self,
8697a616	231	LttvHooks *before_traceset,
dc877563	232	LttvHooks *before_trace,
ffd54a90	233	LttvHooks *before_tracefile,
8697a616	234	LttvHooks *event,
8697a616	235	LttvHooksById *event_by_id);
dc877563	236
dc877563	237	void lttv_traceset_context_remove_hooks(LttvTracesetContext *self,
dc877563	238	LttvHooks *after_traceset,
dc877563	239	LttvHooks *after_trace,
ffd54a90	240	LttvHooks *after_tracefile,
8697a616	241	LttvHooks *event,
8697a616	242	LttvHooksById *event_by_id);
dc877563	243
a8c0f09d	244	void lttv_trace_context_add_hooks(LttvTraceContext *self,
8697a616	245	LttvHooks *before_trace,
	246	LttvHooks *before_tracefile,
	247	LttvHooks *event,
	248	LttvHooksById *event_by_id);
a8c0f09d	249
a8c0f09d	250	void lttv_trace_context_remove_hooks(LttvTraceContext *self,
8697a616	251	LttvHooks *after_trace,
	252	LttvHooks *after_tracefile,
	253	LttvHooks *event,
	254	LttvHooksById *event_by_id);
a8c0f09d	255
a8c0f09d	256	void lttv_tracefile_context_add_hooks(LttvTracefileContext *self,
8697a616	257	LttvHooks *before_tracefile,
	258	LttvHooks *event,
	259	LttvHooksById *event_by_id);
	260
a8c0f09d	261
a8c0f09d	262	void lttv_tracefile_context_remove_hooks(LttvTracefileContext *self,
8697a616	263	LttvHooks *after_tracefile,
	264	LttvHooks *event,
	265	LttvHooksById *event_by_id);
	266
a8c0f09d	267
	268	void lttv_tracefile_context_add_hooks_by_id(LttvTracefileContext *self,
	269	unsigned i,
8697a616	270	LttvHooks *event_by_id);
a8c0f09d	271
	272	void lttv_tracefile_context_remove_hooks_by_id(LttvTracefileContext *self,
	273	unsigned i);
	274
eed2ef37	275	/* A LttvTraceHook has two arrays of LttvTraceHookByFacility,
eed2ef37	276	* indexed by facility ID and a simple array used to walk all the hooks */
b445142a	277	typedef struct _LttvTraceHook {
	278	LttvHook h;
	279	guint id;
	280	LttField *f1;
	281	LttField *f2;
	282	LttField *f3;
2c82c4dc	283	gpointer hook_data;
eed2ef37	284	} LttvTraceHookByFacility;
	285
	286
3c165eaf	287	/* Get the head of marker list correcponding to the given trace hook.
	288	*/
	289	struct marker_info lttv_trace_hook_get_marker(LttvTraceHook th);
b445142a	290
eed2ef37	291	void lttv_trace_hook_destroy(LttvTraceHook *th);
b445142a	292
	293	/* Search in the trace for the id of the named event type within the named
	294	facility. Then, find the three (if non null) named fields. All that
	295	information is then used to fill the LttvTraceHook structure. This
	296	is useful to find the specific id for an event within a trace, for
	297	registering a hook using this structure as event data;
	298	it already contains the (up to three) needed fields handles. */
	299
3c165eaf	300	gint lttv_trace_find_hook(LttTrace *t, GQuark event_type,
2c82c4dc	301	GQuark field1, GQuark field2, GQuark field3, LttvHook h,
2c82c4dc	302	gpointer hook_data, LttvTraceHook *th);
b445142a	303
2d262115	304	LttvTracefileContext *lttv_traceset_context_get_current_tfc(
	305	LttvTracesetContext *self);
	306
8b0bbe19	307
9ba3aaaf	308	LttvTracesetContextPosition *lttv_traceset_context_position_new(
9ba3aaaf	309	const LttvTracesetContext *self);
5e2c04a2	310
8697a616	311	void lttv_traceset_context_position_save(const LttvTracesetContext *self,
	312	LttvTracesetContextPosition *pos);
	313
	314	void lttv_traceset_context_position_destroy(LttvTracesetContextPosition *pos);
	315
5e2c04a2	316	void lttv_traceset_context_position_copy(LttvTracesetContextPosition *dest,
	317	const LttvTracesetContextPosition *src);
	318
8697a616	319	gint lttv_traceset_context_pos_pos_compare(
8b0bbe19	320	const LttvTracesetContextPosition *pos1,
8b0bbe19	321	const LttvTracesetContextPosition *pos2);
8697a616	322
8697a616	323	gint lttv_traceset_context_ctx_pos_compare(const LttvTracesetContext *self,
8b0bbe19	324	const LttvTracesetContextPosition *pos2);
8697a616	325
2d262115	326	LttTime lttv_traceset_context_position_get_time(
8b0bbe19	327	const LttvTracesetContextPosition *pos);
8b0bbe19	328
27304273	329	gint compare_tracefile(gconstpointer a, gconstpointer b);
8b0bbe19	330
2c82c4dc	331
	332	/* Synchronisation helpers : save/restore synchronization between ltt traces and
	333	* a traceset context. */
18c87975	334	void lttv_process_traceset_synchronize_tracefiles(LttvTracesetContext *tsc);
2c82c4dc	335
18c87975	336	void lttv_process_traceset_get_sync_data(LttvTracesetContext *tsc);
2c82c4dc	337
0bd2f89c	338	/* Seek n events forward and backward (without filtering) : only use these where
	339	* necessary : the seek backward is costy. */
	340
	341	#define BACKWARD_SEEK_MUL 2 /* Multiplication factor of time_offset between
	342	backward seek iterations */
	343
9d227699	344	static const LttTime seek_back_default_offset = { 1, 0 };
33e44b82	345
fb3d6047	346	typedef gboolean check_handler(guint count, gboolean *stop_flag, gpointer data);
04f2543e	347
0bd2f89c	348	guint lttv_process_traceset_seek_n_forward(LttvTracesetContext *self,
33e44b82	349	guint n,
04f2543e	350	check_handler *check,
b139ad2a	351	gboolean *stop_flag,
	352	LttvFilter *filter1,
	353	LttvFilter *filter2,
fb3d6047	354	LttvFilter *filter3,
fb3d6047	355	gpointer data);
33e44b82	356	typedef void (seek_time_fct)(LttvTracesetContext self, LttTime start);
0bd2f89c	357
33e44b82	358	/* If first_offset is ltt_time_zero, it will choose a default value */
0bd2f89c	359	guint lttv_process_traceset_seek_n_backward(LttvTracesetContext *self,
33e44b82	360	guint n,
	361	LttTime first_offset,
	362	seek_time_fct,
04f2543e	363	check_handler *check,
b139ad2a	364	gboolean *stop_flag,
	365	LttvFilter *filter1,
	366	LttvFilter *filter2,
fb3d6047	367	LttvFilter *filter3,
fb3d6047	368	gpointer data);
33e44b82	369
0bd2f89c	370
dc877563	371	#endif // PROCESSTRACE_H