Manipulating a{sv} mappings

Manipulating a{sv} mappings — Functions to manipulate mappings from string to variant, as represented in GVariant by a G_VARIANT_TYPE_VARDICT

Synopsis

#include <telepathy-glib/telepathy-glib.h>

gboolean            tp_vardict_get_boolean              (GVariant *variant,
                                                         const gchar *key,
                                                         gboolean *valid);
gdouble             tp_vardict_get_double               (GVariant *variant,
                                                         const gchar *key,
                                                         gboolean *valid);
gint32              tp_vardict_get_int32                (GVariant *variant,
                                                         const gchar *key,
                                                         gboolean *valid);
gint64              tp_vardict_get_int64                (GVariant *variant,
                                                         const gchar *key,
                                                         gboolean *valid);
const gchar *       tp_vardict_get_object_path          (GVariant *variant,
                                                         const gchar *key);
const gchar *       tp_vardict_get_string               (GVariant *variant,
                                                         const gchar *key);
guint32             tp_vardict_get_uint32               (GVariant *variant,
                                                         const gchar *key,
                                                         gboolean *valid);
guint64             tp_vardict_get_uint64               (GVariant *variant,
                                                         const gchar *key,
                                                         gboolean *valid);

Description

These functions provide convenient access to the values in such a mapping.

Details

tp_vardict_get_boolean ()

gboolean            tp_vardict_get_boolean              (GVariant *variant,
                                                         const gchar *key,
                                                         gboolean *valid);

If a value for key in variant is present and boolean, return it, and set *valid to TRUE if valid is not NULL.

Otherwise return FALSE, and set *valid to FALSE if valid is not NULL.

variant :

 a GVariant of type G_VARIANT_TYPE_VARDICT

key :

 The key to look up

valid :

 Either NULL, or a location to store TRUE if the key actually exists and has a boolean value. [out]

Returns :

 a boolean value for key

Since 0.19.10

tp_vardict_get_double ()

gdouble             tp_vardict_get_double               (GVariant *variant,
                                                         const gchar *key,
                                                         gboolean *valid);

If a value for key in variant is present and has any numeric type used by GVariant (gint32, guint32, gint64, guint64 or gdouble), return it as a double, and if valid is not NULL, set *valid to TRUE.

Otherwise, return 0.0, and if valid is not NULL, set *valid to FALSE.

variant :

 a GVariant of type G_VARIANT_TYPE_VARDICT

key :

 The key to look up

valid :

 Either NULL, or a location in which to store TRUE on success or FALSE on failure. [out]

Returns :

 the double precision floating-point value of key, or 0.0

Since 0.19.10

tp_vardict_get_int32 ()

gint32              tp_vardict_get_int32                (GVariant *variant,
                                                         const gchar *key,
                                                         gboolean *valid);

If a value for key in variant is present, has an integer type used by GVariant (gint32, guint32, gint64 or guint64) and fits in the range of a gint32, return it, and if valid is not NULL, set *valid to TRUE.

Otherwise, return 0, and if valid is not NULL, set *valid to FALSE.

variant :

 a GVariant of type G_VARIANT_TYPE_VARDICT

key :

 The key to look up

valid :

 Either NULL, or a location in which to store TRUE on success or FALSE on failure. [out]

Returns :

 the 32-bit signed integer value of key, or 0

Since 0.19.10

tp_vardict_get_int64 ()

gint64              tp_vardict_get_int64                (GVariant *variant,
                                                         const gchar *key,
                                                         gboolean *valid);

If a value for key in variant is present, has an integer type used by GVariant (gint32, guint32, gint64 or guint64) and fits in the range of a gint64, return it, and if valid is not NULL, set *valid to TRUE.

Otherwise, return 0, and if valid is not NULL, set *valid to FALSE.

variant :

 a GVariant of type G_VARIANT_TYPE_VARDICT

key :

 The key to look up

valid :

 Either NULL, or a location in which to store TRUE on success or FALSE on failure. [out]

Returns :

 the 64-bit signed integer value of key, or 0

Since 0.19.10

tp_vardict_get_object_path ()

const gchar *       tp_vardict_get_object_path          (GVariant *variant,
                                                         const gchar *key);

If a value for key in variant is present and is an object path, return it.

Otherwise return NULL.

The returned value is not copied, and is only valid as long as variant is kept. Copy it with g_strdup() if you need to keep it for longer.

variant :

 a GVariant of type G_VARIANT_TYPE_VARDICT

key :

 The key to look up

Returns :

 the object path value of key, or NULL. [transfer none][allow-none]

Since 0.19.10

tp_vardict_get_string ()

const gchar *       tp_vardict_get_string               (GVariant *variant,
                                                         const gchar *key);

If a value for key in variant is present and is a string, return it.

Otherwise return NULL.

The returned value is not copied, and is only valid as long as variant is kept. Copy it with g_strdup() if you need to keep it for longer.

variant :

 a GVariant of type G_VARIANT_TYPE_VARDICT

key :

 The key to look up

Returns :

 the string value of key, or NULL. [transfer none][allow-none]

Since 0.19.10

tp_vardict_get_uint32 ()

guint32             tp_vardict_get_uint32               (GVariant *variant,
                                                         const gchar *key,
                                                         gboolean *valid);

If a value for key in variant is present, has an integer type used by GVariant (gint32, guint32, gint64 or guint64) and fits in the range of a guint32, return it, and if valid is not NULL, set *valid to TRUE.

Otherwise, return 0, and if valid is not NULL, set *valid to FALSE.

variant :

 a GVariant of type G_VARIANT_TYPE_VARDICT

key :

 The key to look up

valid :

 Either NULL, or a location in which to store TRUE on success or FALSE on failure. [out]

Returns :

 the 32-bit unsigned integer value of key, or 0

Since 0.19.10

tp_vardict_get_uint64 ()

guint64             tp_vardict_get_uint64               (GVariant *variant,
                                                         const gchar *key,
                                                         gboolean *valid);

If a value for key in variant is present, has an integer type used by GVariant (gint32, guint32, gint64 or guint64) and is non-negative, return it, and if valid is not NULL, set *valid to TRUE.

Otherwise, return 0, and if valid is not NULL, set *valid to FALSE.

variant :

 a GVariant of type G_VARIANT_TYPE_VARDICT

key :

 The key to look up

valid :

 Either NULL, or a location in which to store TRUE on success or FALSE on failure. [out]

Returns :

 the 64-bit unsigned integer value of key, or 0

Since 0.19.10

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