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/* Swfdec
* Copyright (C) 2007-2008 Benjamin Otte <otte@gnome.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#ifndef _SWFDEC_AS_CONTEXT_H_
#define _SWFDEC_AS_CONTEXT_H_
#include <glib-object.h>
#include <swfdec/swfdec_as_types.h>
G_BEGIN_DECLS
typedef enum {
SWFDEC_AS_CONTEXT_NEW,
SWFDEC_AS_CONTEXT_RUNNING,
SWFDEC_AS_CONTEXT_INTERRUPTED,
SWFDEC_AS_CONTEXT_ABORTED
} SwfdecAsContextState;
typedef struct _SwfdecAsContextClass SwfdecAsContextClass;
#define SWFDEC_TYPE_AS_CONTEXT (swfdec_as_context_get_type())
#define SWFDEC_IS_AS_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), SWFDEC_TYPE_AS_CONTEXT))
#define SWFDEC_IS_AS_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), SWFDEC_TYPE_AS_CONTEXT))
#define SWFDEC_AS_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), SWFDEC_TYPE_AS_CONTEXT, SwfdecAsContext))
#define SWFDEC_AS_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), SWFDEC_TYPE_AS_CONTEXT, SwfdecAsContextClass))
#define SWFDEC_AS_CONTEXT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), SWFDEC_TYPE_AS_CONTEXT, SwfdecAsContextClass))
struct _SwfdecAsContext {
GObject object;
SwfdecAsContextState state; /* our current state */
SwfdecAsObject * global; /* the global object or NULL if not initialized yet.
In SwfdecPlayer is NULL unless a sandbox is in use */
GRand * rand; /* random number generator */
GTimeVal start_time; /* time this movie started (for GetTime action) */
/* GC properties */
gsize memory_until_gc;/* amount of memory allocations that trigger a GC */
/* bookkeeping for GC */
gsize memory; /* total memory currently in use */
gsize memory_since_gc;/* memory allocated since last GC run */
GHashTable * interned_strings;/* string => memory mapping the context manages */
gpointer gc_objects; /* all SwfdecGcObjects the context manages */
gpointer objects; /* all objects the context manages */
gpointer strings; /* all strings the context manages */
gpointer numbers; /* all numbers the context manages */
gpointer movies; /* all movies the context manages */
GHashTable * constant_pools; /* memory address => SwfdecConstantPool for all gc'ed pools */
/* execution state */
unsigned int version; /* currently active version */
unsigned int call_depth; /* current depth of call stack (equals length of frame list) */
SwfdecAsFrame * frame; /* topmost stack frame */
gboolean exception; /* whether we are throwing an exception */
SwfdecAsValue exception_value; /* value of the exception being thrown, can be anything including undefined */
/* stack */
SwfdecAsValue * base; /* stack base */
SwfdecAsValue * end; /* end of stack */
SwfdecAsValue * cur; /* pointer to current top of stack */
SwfdecAsStack * stack; /* current stack */
/* debugging */
SwfdecAsDebugger * debugger; /* debugger (or NULL if none) */
};
struct _SwfdecAsContextClass {
GObjectClass object_class;
/* mark all objects that should not be collected */
void (* mark) (SwfdecAsContext * context);
/* overwrite if you want to report a different time than gettimeofday */
void (* get_time) (SwfdecAsContext * context,
GTimeVal * tv);
/* overwrite if you want to abort on infinite loops */
gboolean (* check_continue) (SwfdecAsContext * context);
};
GType swfdec_as_context_get_type (void);
void swfdec_as_context_startup (SwfdecAsContext * context);
gboolean swfdec_as_context_is_aborted (SwfdecAsContext * context);
gboolean swfdec_as_context_is_constructing
(SwfdecAsContext * context);
SwfdecAsFrame * swfdec_as_context_get_frame (SwfdecAsContext * context);
void swfdec_as_context_get_time (SwfdecAsContext * context,
GTimeVal * tv);
const char * swfdec_as_context_get_string (SwfdecAsContext * context,
const char * string);
const char * swfdec_as_context_give_string (SwfdecAsContext * context,
char * string);
void swfdec_as_context_abort (SwfdecAsContext * context,
const char * reason);
void swfdec_as_context_throw (SwfdecAsContext * context,
const SwfdecAsValue * value);
gboolean swfdec_as_context_catch (SwfdecAsContext * context,
SwfdecAsValue * value);
gboolean swfdec_as_context_try_use_mem (SwfdecAsContext * context,
gsize bytes);
void swfdec_as_context_use_mem (SwfdecAsContext * context,
gsize bytes);
void swfdec_as_context_unuse_mem (SwfdecAsContext * context,
gsize bytes);
void swfdec_as_value_mark (SwfdecAsValue * value);
void swfdec_as_string_mark (const char * string);
void swfdec_as_context_gc (SwfdecAsContext * context);
void swfdec_as_context_maybe_gc (SwfdecAsContext * context);
G_END_DECLS
#endif
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