[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);


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
308711e5	223
	224	void lttv_process_traceset_seek_time(LttvTracesetContext *self, LttTime start);
	225
800dfee0	226	void lttv_traceset_context_compute_time_span(LttvTracesetContext *self,
90e19f82	227	TimeInterval *time_span);
800dfee0	228
8697a616	229	gboolean lttv_process_traceset_seek_position(LttvTracesetContext *self,
90e19f82	230	const LttvTracesetContextPosition *pos);
8697a616	231
308711e5	232	void lttv_process_trace_seek_time(LttvTraceContext *self, LttTime start);
dc877563	233
dc877563	234	void lttv_traceset_context_add_hooks(LttvTracesetContext *self,
90e19f82 AM	235	LttvHooks *before_traceset,
	236	LttvHooks *before_trace,
	237	LttvHooks *before_tracefile,
	238	LttvHooks *event,
	239	LttvHooksByIdChannelArray *event_by_id_channel);
dc877563	240
dc877563	241	void lttv_traceset_context_remove_hooks(LttvTracesetContext *self,
90e19f82 AM	242	LttvHooks *after_traceset,
	243	LttvHooks *after_trace,
	244	LttvHooks *after_tracefile,
	245	LttvHooks *event,
	246	LttvHooksByIdChannelArray *event_by_id_channel);
dc877563	247
a8c0f09d	248	void lttv_trace_context_add_hooks(LttvTraceContext *self,
90e19f82 AM	249	LttvHooks *before_trace,
	250	LttvHooks *before_tracefile,
	251	LttvHooks *event,
	252	LttvHooksByIdChannelArray *event_by_id_channel);
a8c0f09d	253
a8c0f09d	254	void lttv_trace_context_remove_hooks(LttvTraceContext *self,
90e19f82 AM	255	LttvHooks *after_trace,
	256	LttvHooks *after_tracefile,
	257	LttvHooks *event,
	258	LttvHooksByIdChannelArray *event_by_id_channel);
a8c0f09d	259
a8c0f09d	260	void lttv_tracefile_context_add_hooks(LttvTracefileContext *self,
90e19f82 AM	261	LttvHooks *before_tracefile,
	262	LttvHooks *event,
	263	LttvHooksById *event_by_id);
8697a616	264
a8c0f09d	265
a8c0f09d	266	void lttv_tracefile_context_remove_hooks(LttvTracefileContext *self,
90e19f82 AM	267	LttvHooks *after_tracefile,
	268	LttvHooks *event,
	269	LttvHooksById *event_by_id);
a8c0f09d	270
b445142a	271	typedef struct _LttvTraceHook {
90e19f82 AM	272	LttvHook h;
	273	struct marker_data *mdata;
	274	GQuark channel;
	275	guint16 id; /* id of the marker associated with this hook */
	276	GPtrArray fields; / struct marker_fields pointers */
	277	gpointer hook_data;
14b1ac27	278	} LttvTraceHook;
eed2ef37	279
08fb203b	280	/* Get the head of marker list corresponding to the given trace hook.
3c165eaf	281	*/
f57fd845	282	struct marker_info lttv_trace_hook_get_marker(LttTrace t, LttvTraceHook *th);
b445142a	283
032ba5da	284	/* Remove the hooks from the array. Does not free the array itself. */
032ba5da	285	void lttv_trace_hook_remove_all(GArray **th);
b445142a	286
	287	/* Search in the trace for the id of the named event type within the named
	288	facility. Then, find the three (if non null) named fields. All that
	289	information is then used to fill the LttvTraceHook structure. This
	290	is useful to find the specific id for an event within a trace, for
	291	registering a hook using this structure as event data;
937a4442	292	it already contains the (up to three) needed fields handles.
6418800d	293	Returns the modified LttvTraceHook array.
	294	Prints warnings if events or markers are not found. returns 1 on error,
	295	0 on success.
	296	Adds the hooks to the trace_hooks array.
937a4442	297	*/
937a4442	298
60c5092c	299	int lttv_trace_find_hook(LttTrace *t, GQuark facility_name, GQuark event_name,
90e19f82 AM	300	GQuark fields[], LttvHook h, gpointer hook_data,
90e19f82 AM	301	GArray **trace_hooks);
b445142a	302
775c802c	303	static inline struct marker_field *
	304	lttv_trace_get_hook_field(LttvTraceHook *hook, unsigned int index)
	305	{
	306	return g_ptr_array_index(hook->fields, index);
	307	}
	308
750eb11a	309	#if 0
a496afb7	310	static inline GQuark lttv_merge_facility_event_name(GQuark fac, GQuark ev)
a496afb7	311	{
90e19f82 AM	312	char *tmp;
	313	const char sfac, sev;
	314	GQuark ret;
	315
	316	sfac = g_quark_to_string(fac);
	317	sev = g_quark_to_string(ev);
	318	tmp = g_new(char, strlen(sfac) + strlen(sev) + 3); /* 3: _ \0 \0 */
	319	strcpy(tmp, sfac);
	320	strcat(tmp, "_");
	321	strcat(tmp, sev);
	322	ret = g_quark_from_string(tmp);
	323	g_free(tmp);
	324	return ret;
a496afb7	325	}
750eb11a	326	#endif //0
775c802c	327
90e19f82 AM	328	LttvTracefileContext *
90e19f82 AM	329	lttv_traceset_context_get_current_tfc(LttvTracesetContext *self);
2d262115	330
8b0bbe19	331
90e19f82 AM	332	LttvTracesetContextPosition *
90e19f82 AM	333	lttv_traceset_context_position_new(const LttvTracesetContext *self);
5e2c04a2	334
8697a616	335	void lttv_traceset_context_position_save(const LttvTracesetContext *self,
90e19f82	336	LttvTracesetContextPosition *pos);
8697a616	337
	338	void lttv_traceset_context_position_destroy(LttvTracesetContextPosition *pos);
	339
5e2c04a2	340	void lttv_traceset_context_position_copy(LttvTracesetContextPosition *dest,
90e19f82	341	const LttvTracesetContextPosition *src);
5e2c04a2	342
90e19f82 AM	343	gint
	344	lttv_traceset_context_pos_pos_compare(const LttvTracesetContextPosition *pos1,
	345	const LttvTracesetContextPosition *pos2);
8697a616	346
8697a616	347	gint lttv_traceset_context_ctx_pos_compare(const LttvTracesetContext *self,
90e19f82	348	const LttvTracesetContextPosition *pos2);
8697a616	349
90e19f82 AM	350	LttTime
90e19f82 AM	351	lttv_traceset_context_position_get_time(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,
90e19f82 AM	373	guint n,
	374	check_handler *check,
	375	gboolean *stop_flag,
	376	LttvFilter *filter1,
	377	LttvFilter *filter2,
	378	LttvFilter *filter3,
	379	gpointer data);
	380
33e44b82	381	typedef void (seek_time_fct)(LttvTracesetContext self, LttTime start);
0bd2f89c	382
33e44b82	383	/* If first_offset is ltt_time_zero, it will choose a default value */
0bd2f89c	384	guint lttv_process_traceset_seek_n_backward(LttvTracesetContext *self,
90e19f82 AM	385	guint n,
	386	LttTime first_offset,
	387	seek_time_fct,
	388	check_handler *check,
	389	gboolean *stop_flag,
	390	LttvFilter *filter1,
	391	LttvFilter *filter2,
	392	LttvFilter *filter3,
	393	gpointer data);
33e44b82	394
775c802c	395	#define FIELD_ARRAY(val...) ((GQuark[]){ val, 0 })
0bd2f89c	396
dc877563	397	#endif // PROCESSTRACE_H