[lttv.git] / trunk / 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 <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,
                                 LttvHooksById   *event_by_id);


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,
                               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);

typedef struct _LttvTraceHook {
  LttvHook h;
  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);
}

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;
}

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 {
	95	GObject parent;
	96
	97	LttvTraceset *ts;
dc877563	98	LttvTraceContext **traces;
dc877563	99	LttvAttribute *a;
308711e5	100	LttvAttribute *ts_a;
8697a616	101	TimeInterval time_span;
2a2fa4f0	102	GTree *pqueue;
2c82c4dc	103
18c87975	104	LttvTracesetContextPosition sync_position; / position at which to sync the
18c87975	105	trace context */
dc877563	106	};
	107
	108	struct _LttvTracesetContextClass {
	109	GObjectClass parent;
	110
	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);
	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
	127	LttvTraceContext *
	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 {
	142	GObject parent;
	143
	144	LttvTracesetContext *ts_context;
	145	guint index; /* in ts_context->traces */
ffd54a90	146	LttTrace *t;
308711e5	147	LttvTrace *vt;
eed2ef37	148	//LttvTracefileContext **tracefiles;
eed2ef37	149	GArray *tracefiles;
dc877563	150	LttvAttribute *a;
308711e5	151	LttvAttribute *t_a;
14aecf75	152	TimeInterval time_span;
dc877563	153	};
	154
	155	struct _LttvTraceContextClass {
	156	GObjectClass parent;
	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 {
	169	GObject parent;
	170
	171	LttvTraceContext *t_context;
eed2ef37	172	// gboolean control;
dbb7bb09	173	guint index; /* in ts_context->tracefiles */
ffd54a90	174	LttTracefile *tf;
eed2ef37	175	// LttEvent *e;
8697a616	176	LttvHooks *event;
8697a616	177	LttvHooksById *event_by_id;
ffd54a90	178	LttTime timestamp;
dc877563	179	LttvAttribute *a;
e38d9ea0	180	gint target_pid; /* Target PID of the event.
e38d9ea0	181	Updated by state.c. -1 means unset. */
dc877563	182	};
	183
	184	struct _LttvTracefileContextClass {
	185	GObjectClass parent;
	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
	191	hooks appropriately. It starts at the current time and runs until end or
	192	nb_events are processed. */
	193
308711e5	194	void lttv_process_traceset(LttvTracesetContext *self, LttTime end,
2a2fa4f0	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,
	204	LttvHooks *before_traceset,
	205	LttvHooks *before_trace,
	206	LttvHooks *before_tracefile,
	207	LttvHooks *event,
	208	LttvHooksById *event_by_id);
	209
2a2fa4f0	210
8697a616	211	guint lttv_process_traceset_middle(LttvTracesetContext *self,
8697a616	212	LttTime end,
cc038f06	213	gulong nb_events,
8697a616	214	const LttvTracesetContextPosition *end_position);
	215
	216	void lttv_process_traceset_end(LttvTracesetContext *self,
	217	LttvHooks *after_traceset,
	218	LttvHooks *after_trace,
	219	LttvHooks *after_tracefile,
	220	LttvHooks *event,
	221	LttvHooksById *event_by_id);
2a2fa4f0	222
308711e5	223
	224	void lttv_process_traceset_seek_time(LttvTracesetContext *self, LttTime start);
	225
8697a616	226	gboolean lttv_process_traceset_seek_position(LttvTracesetContext *self,
	227	const LttvTracesetContextPosition *pos);
	228
308711e5	229	void lttv_process_trace_seek_time(LttvTraceContext *self, LttTime start);
dc877563	230
dc877563	231	void lttv_traceset_context_add_hooks(LttvTracesetContext *self,
8697a616	232	LttvHooks *before_traceset,
dc877563	233	LttvHooks *before_trace,
ffd54a90	234	LttvHooks *before_tracefile,
8697a616	235	LttvHooks *event,
8697a616	236	LttvHooksById *event_by_id);
dc877563	237
dc877563	238	void lttv_traceset_context_remove_hooks(LttvTracesetContext *self,
dc877563	239	LttvHooks *after_traceset,
dc877563	240	LttvHooks *after_trace,
ffd54a90	241	LttvHooks *after_tracefile,
8697a616	242	LttvHooks *event,
8697a616	243	LttvHooksById *event_by_id);
dc877563	244
a8c0f09d	245	void lttv_trace_context_add_hooks(LttvTraceContext *self,
8697a616	246	LttvHooks *before_trace,
	247	LttvHooks *before_tracefile,
	248	LttvHooks *event,
	249	LttvHooksById *event_by_id);
a8c0f09d	250
a8c0f09d	251	void lttv_trace_context_remove_hooks(LttvTraceContext *self,
8697a616	252	LttvHooks *after_trace,
	253	LttvHooks *after_tracefile,
	254	LttvHooks *event,
	255	LttvHooksById *event_by_id);
a8c0f09d	256
a8c0f09d	257	void lttv_tracefile_context_add_hooks(LttvTracefileContext *self,
8697a616	258	LttvHooks *before_tracefile,
	259	LttvHooks *event,
	260	LttvHooksById *event_by_id);
	261
a8c0f09d	262
a8c0f09d	263	void lttv_tracefile_context_remove_hooks(LttvTracefileContext *self,
8697a616	264	LttvHooks *after_tracefile,
	265	LttvHooks *event,
	266	LttvHooksById *event_by_id);
	267
a8c0f09d	268
	269	void lttv_tracefile_context_add_hooks_by_id(LttvTracefileContext *self,
	270	unsigned i,
8697a616	271	LttvHooks *event_by_id);
a8c0f09d	272
	273	void lttv_tracefile_context_remove_hooks_by_id(LttvTracefileContext *self,
	274	unsigned i);
	275
b445142a	276	typedef struct _LttvTraceHook {
b445142a	277	LttvHook h;
937a4442	278	guint16 id; /* id of the marker associated with this hook */
937a4442	279	GPtrArray fields; / struct marker_fields pointers */
2c82c4dc	280	gpointer hook_data;
14b1ac27	281	} LttvTraceHook;
eed2ef37	282
08fb203b	283	/* Get the head of marker list corresponding to the given trace hook.
3c165eaf	284	*/
f57fd845	285	struct marker_info lttv_trace_hook_get_marker(LttTrace t, LttvTraceHook *th);
b445142a	286
032ba5da	287	/* Remove the hooks from the array. Does not free the array itself. */
032ba5da	288	void lttv_trace_hook_remove_all(GArray **th);
b445142a	289
	290	/* Search in the trace for the id of the named event type within the named
	291	facility. Then, find the three (if non null) named fields. All that
	292	information is then used to fill the LttvTraceHook structure. This
	293	is useful to find the specific id for an event within a trace, for
	294	registering a hook using this structure as event data;
937a4442	295	it already contains the (up to three) needed fields handles.
6418800d	296	Returns the modified LttvTraceHook array.
	297	Prints warnings if events or markers are not found. returns 1 on error,
	298	0 on success.
	299	Adds the hooks to the trace_hooks array.
937a4442	300	*/
937a4442	301
60c5092c	302	int lttv_trace_find_hook(LttTrace *t, GQuark facility_name, GQuark event_name,
6418800d	303	GQuark fields[], LttvHook h, gpointer hook_data, 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
a496afb7	311	static inline GQuark lttv_merge_facility_event_name(GQuark fac, GQuark ev)
	312	{
	313	char *tmp;
	314	const char sfac, sev;
	315	GQuark ret;
	316
	317	sfac = g_quark_to_string(fac);
	318	sev = g_quark_to_string(ev);
	319	tmp = g_new(char, strlen(sfac) + strlen(sev) + 3); /* 3: _ \0 \0 */
	320	strcpy(tmp, sfac);
	321	strcat(tmp, "_");
	322	strcat(tmp, sev);
	323	ret = g_quark_from_string(tmp);
	324	g_free(tmp);
	325	return ret;
	326	}
775c802c	327
2d262115	328	LttvTracefileContext *lttv_traceset_context_get_current_tfc(
	329	LttvTracesetContext *self);
	330
8b0bbe19	331
9ba3aaaf	332	LttvTracesetContextPosition *lttv_traceset_context_position_new(
9ba3aaaf	333	const LttvTracesetContext *self);
5e2c04a2	334
8697a616	335	void lttv_traceset_context_position_save(const LttvTracesetContext *self,
	336	LttvTracesetContextPosition *pos);
	337
	338	void lttv_traceset_context_position_destroy(LttvTracesetContextPosition *pos);
	339
5e2c04a2	340	void lttv_traceset_context_position_copy(LttvTracesetContextPosition *dest,
	341	const LttvTracesetContextPosition *src);
	342
8697a616	343	gint lttv_traceset_context_pos_pos_compare(
8b0bbe19	344	const LttvTracesetContextPosition *pos1,
8b0bbe19	345	const LttvTracesetContextPosition *pos2);
8697a616	346
8697a616	347	gint lttv_traceset_context_ctx_pos_compare(const LttvTracesetContext *self,
8b0bbe19	348	const LttvTracesetContextPosition *pos2);
8697a616	349
2d262115	350	LttTime lttv_traceset_context_position_get_time(
8b0bbe19	351	const LttvTracesetContextPosition *pos);
8b0bbe19	352
27304273	353	gint compare_tracefile(gconstpointer a, gconstpointer b);
8b0bbe19	354
2c82c4dc	355
	356	/* Synchronisation helpers : save/restore synchronization between ltt traces and
	357	* a traceset context. */
18c87975	358	void lttv_process_traceset_synchronize_tracefiles(LttvTracesetContext *tsc);
2c82c4dc	359
18c87975	360	void lttv_process_traceset_get_sync_data(LttvTracesetContext *tsc);
2c82c4dc	361
0bd2f89c	362	/* Seek n events forward and backward (without filtering) : only use these where
	363	* necessary : the seek backward is costy. */
	364
	365	#define BACKWARD_SEEK_MUL 2 /* Multiplication factor of time_offset between
	366	backward seek iterations */
	367
9d227699	368	static const LttTime seek_back_default_offset = { 1, 0 };
33e44b82	369
fb3d6047	370	typedef gboolean check_handler(guint count, gboolean *stop_flag, gpointer data);
04f2543e	371
0bd2f89c	372	guint lttv_process_traceset_seek_n_forward(LttvTracesetContext *self,
33e44b82	373	guint n,
04f2543e	374	check_handler *check,
b139ad2a	375	gboolean *stop_flag,
	376	LttvFilter *filter1,
	377	LttvFilter *filter2,
fb3d6047	378	LttvFilter *filter3,
fb3d6047	379	gpointer data);
33e44b82	380	typedef void (seek_time_fct)(LttvTracesetContext self, LttTime start);
0bd2f89c	381
33e44b82	382	/* If first_offset is ltt_time_zero, it will choose a default value */
0bd2f89c	383	guint lttv_process_traceset_seek_n_backward(LttvTracesetContext *self,
33e44b82	384	guint n,
	385	LttTime first_offset,
	386	seek_time_fct,
04f2543e	387	check_handler *check,
b139ad2a	388	gboolean *stop_flag,
	389	LttvFilter *filter1,
	390	LttvFilter *filter2,
fb3d6047	391	LttvFilter *filter3,
fb3d6047	392	gpointer data);
33e44b82	393
775c802c	394	#define FIELD_ARRAY(val...) ((GQuark[]){ val, 0 })
0bd2f89c	395
dc877563	396	#endif // PROCESSTRACE_H