+/* 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 STATE_H
#define STATE_H
#include <glib.h>
#include <lttv/processTrace.h>
-/* The operating system state kept during the trace analysis
+/* The operating system state, kept during the trace analysis,
contains a subset of the real operating system state,
sufficient for the analysis, and possibly organized quite differently.
and LttvTracefileContext objects, used by processTrace, through
subtyping. The context objects already reflect the multiple tracefiles
(one per cpu) per trace and multiple traces per trace set. The state
- objects defined here simply add fields to the relevant context objects. */
+ objects defined here simply add fields to the relevant context objects.
+
+ There is no traceset specific state yet. It may eventually contains such
+ things as clock differences over time.
+
+ The trace state currently consists in a process table.
+
+ The tracefile level state relates to the associated cpu. It contains the
+ position of the current event in the tracefile (since the state depends on
+ which events have been processed) and a pointer to the current process,
+ in the process table, being run on that cpu.
+
+ For each process in the process table, various informations such as exec
+ file name, pid, ppid and creation time are stored. Each process state also
+ contains an execution mode stack (e.g. irq within system call, called
+ from user mode). */
typedef struct _LttvTracesetState LttvTracesetState;
typedef struct _LttvTracesetStateClass LttvTracesetStateClass;
typedef struct _LttvTracefileState LttvTracefileState;
typedef struct _LttvTracefileStateClass LttvTracefileStateClass;
-gboolean lttv_state_add_event_hooks(LttvTracesetState *self);
+void lttv_state_add_event_hooks(LttvTracesetState *self);
+
+void lttv_state_remove_event_hooks(LttvTracesetState *self);
+
+void lttv_state_save_add_event_hooks(LttvTracesetState *self);
-gboolean lttv_state_remove_event_hooks(LttvTracesetState *self);
+void lttv_state_save_remove_event_hooks(LttvTracesetState *self);
+
+void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t);
/* The LttvProcessState structure defines the current state for each process.
A process can make system calls (in some rare cases nested) and receive
/* opened file descriptors, address map?... */
} LttvProcessState;
-
+//FIXME : find by pid and birth time : both are necessary to be unique
LttvProcessState *lttv_state_find_process(LttvTracefileState *tfs, guint pid);
+LttvProcessState *lttv_state_find_process_from_trace(LttvTraceState *ts, guint pid);
/* The LttvTracesetState, LttvTraceState and LttvTracefileState types
LttvTraceContext parent;
GHashTable *processes; /* LttvProcessState objects indexed by pid */
+ guint nb_event, save_interval;
/* Block/char devices, locks, memory pages... */
GQuark *eventtype_names;
GQuark *syscall_names;
GQuark *trap_names;
GQuark *irq_names;
+ gboolean recompute_state_in_seek;
+ gboolean saved_state_ready;
+ gboolean saved_state_available;
};
struct _LttvTraceStateClass {
LttvTraceContextClass parent;
+
+ void (*state_save) (LttvTraceState *self, LttvAttribute *container);
+ void (*state_restore) (LttvTraceState *self, LttvAttribute *container);
+ void (*state_saved_free) (LttvTraceState *self, LttvAttribute *container);
};
GType lttv_trace_state_get_type (void);
+void lttv_state_save(LttvTraceState *self, LttvAttribute *container);
+
+void lttv_state_restore(LttvTraceState *self, LttvAttribute *container);
+
+void lttv_state_saved_state_free(LttvTraceState *self,
+ LttvAttribute *container);
+
#define LTTV_TRACEFILE_STATE_TYPE (lttv_tracefile_state_get_type ())
#define LTTV_TRACEFILE_STATE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), LTTV_TRACEFILE_STATE_TYPE, LttvTracefileState))
LttvProcessState *process;
GQuark cpu_name;
+ guint saved_position;
};
struct _LttvTracefileStateClass {