+++ /dev/null
-/* 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);
-
-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
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