CamelObject

CamelObject —

Synopsis




#define             CAMEL_OBJECT_TRACK_INSTANCES
typedef             CamelType;
                    CamelObject;
#define             CAMEL_CHECK_CAST                    (obj, ctype, ptype)
#define             CAMEL_CHECK_CLASS_CAST              (klass, ctype, ptype)
#define             CAMEL_CHECK_TYPE                    (obj, ctype)
#define             CAMEL_CHECK_CLASS_TYPE              (klass, ctype)
extern              CamelType camel_object_type;
#define             CAMEL_OBJECT_TYPE
#define             CAMEL_OBJECT_GET_TYPE               (o)
typedef             CamelObjectHookID;
                    CamelObjectMeta;
extern              CamelType camel_interface_type;
#define             CAMEL_INTERFACE_TYPE
                    CamelInterface;
void                (*CamelObjectClassInitFunc)         (CamelObjectClass *);
void                (*CamelObjectClassFinalizeFunc)     (CamelObjectClass *);
void                (*CamelObjectInitFunc)              (CamelObject *,
                                                         CamelObjectClass *);
void                (*CamelObjectFinalizeFunc)          (CamelObject *);
gboolean            (*CamelObjectEventPrepFunc)         (CamelObject *,
                                                         gpointer );
void                (*CamelObjectEventHookFunc)         (CamelObject *,
                                                         gpointer ,
                                                         gpointer );
#define             CAMEL_INVALID_TYPE
enum                CamelObjectFlags;
void                camel_type_init                     (void);
CamelType           camel_type_register                 (CamelType parent,
                                                         const char *name,
                                                         size_t instance_size,
                                                         size_t classfuncs_size,
                                                         CamelObjectClassInitFunc class_init,
                                                         CamelObjectClassFinalizeFunc class_finalize,
                                                         CamelObjectInitFunc instance_init,
                                                         CamelObjectFinalizeFunc instance_finalize);
CamelType           camel_interface_register            (CamelType parent,
                                                         const char *name,
                                                         size_t classfuncs_size,
                                                         CamelObjectClassInitFunc class_init,
                                                         CamelObjectClassFinalizeFunc class_finalize);
#define             camel_type_get_global_classfuncs    (x)
const char*         camel_type_to_name                  (CamelType type);
CamelType           camel_name_to_type                  (const char *name);
void                camel_object_class_add_event        (CamelObjectClass *klass,
                                                         const char *name,
                                                         CamelObjectEventPrepFunc prep);
void                camel_object_class_add_interface    (CamelObjectClass *klass,
                                                         CamelType itype);
void                camel_object_class_dump_tree        (CamelType root);
CamelObject*        camel_object_cast                   (CamelObject *obj,
                                                         CamelType ctype);
gboolean            camel_object_is                     (CamelObject *obj,
                                                         CamelType ctype);
CamelObjectClass*   camel_object_class_cast             (CamelObjectClass *klass,
                                                         CamelType ctype);
gboolean            camel_object_class_is               (CamelObjectClass *klass,
                                                         CamelType ctype);
CamelObjectClass*   camel_interface_cast                (CamelObjectClass *klass,
                                                         CamelType ctype);
gboolean            camel_interface_is                  (CamelObjectClass *k,
                                                         CamelType ctype);
CamelObject*        camel_object_new                    (CamelType type);
CamelObject*        camel_object_new_name               (const char *name);
void                camel_object_ref                    (void *);
void                camel_object_unref                  (void *);
CamelObjectHookID   camel_object_hook_event             (void *obj,
                                                         const char *name,
                                                         CamelObjectEventHookFunc hook,
                                                         void *data);
void                camel_object_remove_event           (void *obj,
                                                         CamelObjectHookID id);
void                camel_object_unhook_event           (void *obj,
                                                         const char *name,
                                                         CamelObjectEventHookFunc hook,
                                                         void *data);
void                camel_object_trigger_event          (void *obj,
                                                         const char *name,
                                                         void *event_data);
void*               camel_object_get_interface          (void *vo,
                                                         CamelType itype);
int                 camel_object_set                    (void *obj,
                                                         struct _CamelException *ex,
                                                         ...);
int                 camel_object_setv                   (void *obj,
                                                         struct _CamelException *ex,
                                                         CamelArgV *);
int                 camel_object_get                    (void *obj,
                                                         struct _CamelException *ex,
                                                         ...);
int                 camel_object_getv                   (void *obj,
                                                         struct _CamelException *ex,
                                                         CamelArgGetV *);
void*               camel_object_get_ptr                (void *vo,
                                                         CamelException *ex,
                                                         int tag);
int                 camel_object_get_int                (void *vo,
                                                         CamelException *ex,
                                                         int tag);
char*               camel_object_meta_get               (void *vo,
                                                         const char *name);
gboolean            camel_object_meta_set               (void *vo,
                                                         const char *name,
                                                         const char *value);
int                 camel_object_state_read             (void *vo);
int                 camel_object_state_write            (void *vo);
void                camel_object_free                   (void *vo,
                                                         guint32 tag,
                                                         void *value);
                    CamelObjectBag;
void*               (*CamelCopyFunc)                    (const void *vo);
CamelObjectBag*     camel_object_bag_new                (GHashFunc hash,
                                                         GEqualFunc equal,
                                                         CamelCopyFunc keycopy,
                                                         GFreeFunc keyfree);
void*               camel_object_bag_get                (CamelObjectBag *bag,
                                                         const void *key);
void*               camel_object_bag_peek               (CamelObjectBag *bag,
                                                         const void *key);
void*               camel_object_bag_reserve            (CamelObjectBag *bag,
                                                         const void *key);
void                camel_object_bag_add                (CamelObjectBag *bag,
                                                         const void *key,
                                                         void *o);
void                camel_object_bag_abort              (CamelObjectBag *bag,
                                                         const void *key);
void                camel_object_bag_rekey              (CamelObjectBag *bag,
                                                         void *o,
                                                         const void *newkey);
GPtrArray*          camel_object_bag_list               (CamelObjectBag *bag);
void                camel_object_bag_remove             (CamelObjectBag *bag,
                                                         void *o);
void                camel_object_bag_destroy            (CamelObjectBag *bag);
#define             CAMEL_MAKE_CLASS                    (type, tname, parent, pname)
                    CamelIteratorVTable;
                    CamelIterator;
void*               camel_iterator_new                  (CamelIteratorVTable *klass,
                                                         size_t size);
void                camel_iterator_free                 (void *it);
const void*         camel_iterator_next                 (void *it,
                                                         CamelException *ex);
void                camel_iterator_reset                (void *it);
int                 camel_iterator_length               (void *it);


Description

Details

CAMEL_OBJECT_TRACK_INSTANCES

#define CAMEL_OBJECT_TRACK_INSTANCES


CamelType

typedef struct _CamelObjectClass *CamelType;


CamelObject

typedef struct {
	struct _CamelObjectClass *klass;

	guint32 magic;		/* only really needed for debugging ... */

	/* current hooks on this object */
	struct _CamelHookList *hooks;

	guint32 ref_count:24;
	guint32 flags:8;

#ifdef CAMEL_OBJECT_TRACK_INSTANCES
	struct _CamelObject *next, *prev;
#endif
} CamelObject;


CAMEL_CHECK_CAST()

#define             CAMEL_CHECK_CAST(obj, ctype, ptype)

obj :
ctype :
ptype :

CAMEL_CHECK_CLASS_CAST()

#define             CAMEL_CHECK_CLASS_CAST(klass, ctype, ptype)

klass :
ctype :
ptype :

CAMEL_CHECK_TYPE()

#define CAMEL_CHECK_TYPE(obj, ctype)                (camel_object_is ((CamelObject *)(obj), (CamelType)(ctype) ))

obj :
ctype :

CAMEL_CHECK_CLASS_TYPE()

#define CAMEL_CHECK_CLASS_TYPE(klass, ctype)        (camel_object_class_is ((CamelObjectClass *)(klass), (CamelType)(ctype)))

klass :
ctype :

camel_object_type

extern CamelType camel_object_type;


CAMEL_OBJECT_TYPE

#define CAMEL_OBJECT_TYPE        (camel_object_type)


CAMEL_OBJECT_GET_TYPE()

#define CAMEL_OBJECT_GET_TYPE(o)  ((CamelType)(CAMEL_OBJECT(o))->klass)

o :

CamelObjectHookID

typedef unsigned int CamelObjectHookID;


CamelObjectMeta

typedef struct {
	struct _CamelObjectMeta *next;

	char *value;
	char name[1];		/* allocated as part of structure */
} CamelObjectMeta;


camel_interface_type

extern CamelType camel_interface_type;


CAMEL_INTERFACE_TYPE

#define CAMEL_INTERFACE_TYPE (camel_interface_type)


CamelInterface

typedef struct {
	struct _CamelObjectClass type;
} CamelInterface;


CamelObjectClassInitFunc ()

void                (*CamelObjectClassInitFunc)         (CamelObjectClass *);

Param1 :

CamelObjectClassFinalizeFunc ()

void                (*CamelObjectClassFinalizeFunc)     (CamelObjectClass *);

Param1 :

CamelObjectInitFunc ()

void                (*CamelObjectInitFunc)              (CamelObject *,
                                                         CamelObjectClass *);

Param1 :
Param2 :

CamelObjectFinalizeFunc ()

void                (*CamelObjectFinalizeFunc)          (CamelObject *);

Param1 :

CamelObjectEventPrepFunc ()

gboolean            (*CamelObjectEventPrepFunc)         (CamelObject *,
                                                         gpointer );

Param1 :
Param2 :
Returns :

CamelObjectEventHookFunc ()

void                (*CamelObjectEventHookFunc)         (CamelObject *,
                                                         gpointer ,
                                                         gpointer );

Param1 :
Param2 :
Param3 :

CAMEL_INVALID_TYPE

#define CAMEL_INVALID_TYPE (NULL)


enum CamelObjectFlags

typedef enum _CamelObjectFlags {
	CAMEL_OBJECT_DESTROY = (1<<0),
} CamelObjectFlags;


camel_type_init ()

void                camel_type_init                     (void);


camel_type_register ()

CamelType           camel_type_register                 (CamelType parent,
                                                         const char *name,
                                                         size_t instance_size,
                                                         size_t classfuncs_size,
                                                         CamelObjectClassInitFunc class_init,
                                                         CamelObjectClassFinalizeFunc class_finalize,
                                                         CamelObjectInitFunc instance_init,
                                                         CamelObjectFinalizeFunc instance_finalize);

parent :
name :
instance_size :
classfuncs_size :
class_init :
class_finalize :
instance_init :
instance_finalize :
Returns :

camel_interface_register ()

CamelType           camel_interface_register            (CamelType parent,
                                                         const char *name,
                                                         size_t classfuncs_size,
                                                         CamelObjectClassInitFunc class_init,
                                                         CamelObjectClassFinalizeFunc class_finalize);

parent :
name :
classfuncs_size :
class_init :
class_finalize :
Returns :

camel_type_get_global_classfuncs()

#define camel_type_get_global_classfuncs(x) ((CamelObjectClass *)(x))

x :

camel_type_to_name ()

const char*         camel_type_to_name                  (CamelType type);

type :
Returns :

camel_name_to_type ()

CamelType           camel_name_to_type                  (const char *name);

name :
Returns :

camel_object_class_add_event ()

void                camel_object_class_add_event        (CamelObjectClass *klass,
                                                         const char *name,
                                                         CamelObjectEventPrepFunc prep);

klass :
name :
prep :

camel_object_class_add_interface ()

void                camel_object_class_add_interface    (CamelObjectClass *klass,
                                                         CamelType itype);

klass :
itype :

camel_object_class_dump_tree ()

void                camel_object_class_dump_tree        (CamelType root);

root :

camel_object_cast ()

CamelObject*        camel_object_cast                   (CamelObject *obj,
                                                         CamelType ctype);

obj :
ctype :
Returns :

camel_object_is ()

gboolean            camel_object_is                     (CamelObject *obj,
                                                         CamelType ctype);

obj :
ctype :
Returns :

camel_object_class_cast ()

CamelObjectClass*   camel_object_class_cast             (CamelObjectClass *klass,
                                                         CamelType ctype);

klass :
ctype :
Returns :

camel_object_class_is ()

gboolean            camel_object_class_is               (CamelObjectClass *klass,
                                                         CamelType ctype);

klass :
ctype :
Returns :

camel_interface_cast ()

CamelObjectClass*   camel_interface_cast                (CamelObjectClass *klass,
                                                         CamelType ctype);

klass :
ctype :
Returns :

camel_interface_is ()

gboolean            camel_interface_is                  (CamelObjectClass *k,
                                                         CamelType ctype);

k :
ctype :
Returns :

camel_object_new ()

CamelObject*        camel_object_new                    (CamelType type);

type :
Returns :

camel_object_new_name ()

CamelObject*        camel_object_new_name               (const char *name);

name :
Returns :

camel_object_ref ()

void                camel_object_ref                    (void *);

Param1 :

camel_object_unref ()

void                camel_object_unref                  (void *);

Param1 :

camel_object_hook_event ()

CamelObjectHookID   camel_object_hook_event             (void *obj,
                                                         const char *name,
                                                         CamelObjectEventHookFunc hook,
                                                         void *data);

obj :
name :
hook :
data :
Returns :

camel_object_remove_event ()

void                camel_object_remove_event           (void *obj,
                                                         CamelObjectHookID id);

obj :
id :

camel_object_unhook_event ()

void                camel_object_unhook_event           (void *obj,
                                                         const char *name,
                                                         CamelObjectEventHookFunc hook,
                                                         void *data);

obj :
name :
hook :
data :

camel_object_trigger_event ()

void                camel_object_trigger_event          (void *obj,
                                                         const char *name,
                                                         void *event_data);

obj :
name :
event_data :

camel_object_get_interface ()

void*               camel_object_get_interface          (void *vo,
                                                         CamelType itype);

vo :
itype :
Returns :

camel_object_set ()

int                 camel_object_set                    (void *obj,
                                                         struct _CamelException *ex,
                                                         ...);

obj :
ex :
... :
Returns :

camel_object_setv ()

int                 camel_object_setv                   (void *obj,
                                                         struct _CamelException *ex,
                                                         CamelArgV *);

obj :
ex :
Param3 :
Returns :

camel_object_get ()

int                 camel_object_get                    (void *obj,
                                                         struct _CamelException *ex,
                                                         ...);

obj :
ex :
... :
Returns :

camel_object_getv ()

int                 camel_object_getv                   (void *obj,
                                                         struct _CamelException *ex,
                                                         CamelArgGetV *);

obj :
ex :
Param3 :
Returns :

camel_object_get_ptr ()

void*               camel_object_get_ptr                (void *vo,
                                                         CamelException *ex,
                                                         int tag);

vo :
ex :
tag :
Returns :

camel_object_get_int ()

int                 camel_object_get_int                (void *vo,
                                                         CamelException *ex,
                                                         int tag);

vo :
ex :
tag :
Returns :

camel_object_meta_get ()

char*               camel_object_meta_get               (void *vo,
                                                         const char *name);

Get a meta-data on an object.

vo :
name :
Returns : NULL if the meta-data is not set.

camel_object_meta_set ()

gboolean            camel_object_meta_set               (void *vo,
                                                         const char *name,
                                                         const char *value);

Set a meta-data item on an object. If the object supports persistent data, then the meta-data will be persistent across sessions.

If the meta-data changes, is added, or removed, then a "meta_changed" event will be triggered with the name of the changed data.

vo :
name : Name of meta-data. Should be prefixed with class of setter.
value : Value to set. If NULL, then the meta-data is removed.
Returns : TRUE if the setting caused a change to the object's metadata.

camel_object_state_read ()

int                 camel_object_state_read             (void *vo);

Read persistent object state from object_set(CAMEL_OBJECT_STATE_FILE).

vo :
Returns : -1 on error.

camel_object_state_write ()

int                 camel_object_state_write            (void *vo);

Write persistent state to the file as set by object_set(CAMEL_OBJECT_STATE_FILE).

vo :
Returns : -1 on error.

camel_object_free ()

void                camel_object_free                   (void *vo,
                                                         guint32 tag,
                                                         void *value);

vo :
tag :
value :

CamelObjectBag

typedef struct _CamelObjectBag CamelObjectBag;


CamelCopyFunc ()

void*               (*CamelCopyFunc)                    (const void *vo);

vo :
Returns :

camel_object_bag_new ()

CamelObjectBag*     camel_object_bag_new                (GHashFunc hash,
                                                         GEqualFunc equal,
                                                         CamelCopyFunc keycopy,
                                                         GFreeFunc keyfree);

Allocate a new object bag. Object bag's are key'd hash tables of camel-objects which can be updated atomically using transaction semantics.

hash :
equal :
keycopy :
keyfree :
Returns :

camel_object_bag_get ()

void*               camel_object_bag_get                (CamelObjectBag *bag,
                                                         const void *key);

Lookup an object by key. If the key is currently reserved, then wait until the key has been committed before continuing.

bag :
key :
Returns : NULL if the object corresponding to key is not in the bag. Otherwise a ref'd object pointer which the caller owns the ref to.

camel_object_bag_peek ()

void*               camel_object_bag_peek               (CamelObjectBag *bag,
                                                         const void *key);

Lookup the object key in bag, ignoring any reservations. If it isn't committed, then it isn't considered. This should only be used where reliable transactional-based state is not required.

Unlike other 'peek' operations, the object is still reffed if found.

bag :
key :
Returns : A referenced object, or NULL if key is not present in the bag.

camel_object_bag_reserve ()

void*               camel_object_bag_reserve            (CamelObjectBag *bag,
                                                         const void *key);

Reserve a key in the object bag. If the key is already reserved in another thread, then wait until the reservation has been committed.

After reserving a key, you either get a reffed pointer to the object corresponding to the key, similar to object_bag_get, or you get NULL, signifying that you then MIST call either object_bag_add or object_bag_abort.

You may reserve multiple keys from the same thread, but they should always be reserved in the same order, to avoid deadlocks.

bag :
key :
Returns :

camel_object_bag_add ()

void                camel_object_bag_add                (CamelObjectBag *bag,
                                                         const void *key,
                                                         void *o);

Add an object vo to the object bag bag. The key MUST have previously been reserved using camel_object_bag_reserve().

bag :
key :
o :

camel_object_bag_abort ()

void                camel_object_bag_abort              (CamelObjectBag *bag,
                                                         const void *key);

Abort a key reservation.

bag :
key :

camel_object_bag_rekey ()

void                camel_object_bag_rekey              (CamelObjectBag *bag,
                                                         void *o,
                                                         const void *newkey);

Re-key an object, atomically. The key for object o is set to newkey, in an atomic manner.

It is an api (fatal) error if o is not currently in the bag.

bag :
o :
newkey :

camel_object_bag_list ()

GPtrArray*          camel_object_bag_list               (CamelObjectBag *bag);

bag :
Returns :

camel_object_bag_remove ()

void                camel_object_bag_remove             (CamelObjectBag *bag,
                                                         void *o);

bag :
o :

camel_object_bag_destroy ()

void                camel_object_bag_destroy            (CamelObjectBag *bag);

bag :

CAMEL_MAKE_CLASS()

#define             CAMEL_MAKE_CLASS(type, tname, parent, pname)

type :
tname :
parent :
pname :

CamelIteratorVTable

typedef struct {
	/* free fields, dont free base object */
	void (*free)(void *it);
	/* go to the next messageinfo */
	const void *(*next)(void *it, CamelException *ex);
	/* go back to the start */
	void (*reset)(void *it);
	/* *ESTIMATE* how many results are in the iterator */
	int (*length)(void *it);
} CamelIteratorVTable;


CamelIterator

typedef struct {
	CamelIteratorVTable *klass;

	/* subclasses adds new fields afterwards */
} CamelIterator;


camel_iterator_new ()

void*               camel_iterator_new                  (CamelIteratorVTable *klass,
                                                         size_t size);

klass :
size :
Returns :

camel_iterator_free ()

void                camel_iterator_free                 (void *it);

it :

camel_iterator_next ()

const void*         camel_iterator_next                 (void *it,
                                                         CamelException *ex);

it :
ex :
Returns :

camel_iterator_reset ()

void                camel_iterator_reset                (void *it);

it :

camel_iterator_length ()

int                 camel_iterator_length               (void *it);

it :
Returns :