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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019 Red Hat, Inc.
*/
#ifndef __NM_VALUE_TYPE_H__
#define __NM_VALUE_TYPE_H__
typedef enum _nm_packed {
NM_VALUE_TYPE_NONE = 0,
NM_VALUE_TYPE_UNSPEC = 1,
NM_VALUE_TYPE_BOOL,
NM_VALUE_TYPE_INT32,
NM_VALUE_TYPE_INT,
NM_VALUE_TYPE_INT64,
NM_VALUE_TYPE_UINT32,
NM_VALUE_TYPE_UINT,
NM_VALUE_TYPE_UINT64,
/* Flags are for G_TYPE_FLAGS. That is, internally they are tracked
* as a guint, they have a g_param_spec_flags() property and they are
* serialized on D-Bus as "u". */
NM_VALUE_TYPE_FLAGS,
/* G_TYPE_ENUM */
NM_VALUE_TYPE_ENUM,
NM_VALUE_TYPE_STRING,
NM_VALUE_TYPE_BYTES,
NM_VALUE_TYPE_STRV,
} NMValueType;
/*****************************************************************************/
#ifdef NM_VALUE_TYPE_DEFINE_FUNCTIONS
typedef union {
bool v_bool;
gint32 v_int32;
gint64 v_int64;
guint64 v_uint64;
int v_int;
const char *v_string;
/* for convenience, also let the union contain other pointer types. These are
* for NM_VALUE_TYPE_UNSPEC. */
gconstpointer *v_ptr;
const GPtrArray *v_ptrarray;
} NMValueTypUnion;
/* Set the NMValueTypUnion. You can also assign the member directly.
* The only purpose of this is that it also returns a pointer to the
* union. So, you can do
*
* ptr = NM_VALUE_TYP_UNION_SET (&value_typ_union_storage, v_bool, TRUE);
*/
#define NM_VALUE_TYP_UNION_SET(_arg, _type, _val) \
({ \
NMValueTypUnion *const _arg2 = (_arg); \
\
*_arg2 = (NMValueTypUnion){ \
._type = (_val), \
}; \
_arg2; \
})
typedef struct {
bool has;
NMValueTypUnion val;
} NMValueTypUnioMaybe;
#define NM_VALUE_TYP_UNIO_MAYBE_SET(_arg, _type, _val) \
({ \
NMValueTypUnioMaybe *const _arg2 = (_arg); \
\
*_arg2 = (NMValueTypUnioMaybe){ \
.has = TRUE, \
.val._type = (_val), \
}; \
_arg2; \
})
/*****************************************************************************/
static inline int
nm_value_type_cmp(NMValueType value_type, gconstpointer p_a, gconstpointer p_b)
{
switch (value_type) {
case NM_VALUE_TYPE_BOOL:
NM_CMP_DIRECT(*((const bool *) p_a), *((const bool *) p_b));
return 0;
case NM_VALUE_TYPE_INT32:
NM_CMP_DIRECT(*((const gint32 *) p_a), *((const gint32 *) p_b));
return 0;
case NM_VALUE_TYPE_INT:
case NM_VALUE_TYPE_ENUM:
NM_CMP_DIRECT(*((const int *) p_a), *((const int *) p_b));
return 0;
case NM_VALUE_TYPE_INT64:
NM_CMP_DIRECT(*((const gint64 *) p_a), *((const gint64 *) p_b));
return 0;
case NM_VALUE_TYPE_UINT32:
NM_CMP_DIRECT(*((const guint32 *) p_a), *((const guint32 *) p_b));
return 0;
case NM_VALUE_TYPE_UINT:
case NM_VALUE_TYPE_FLAGS:
NM_CMP_DIRECT(*((const guint *) p_a), *((const guint *) p_b));
return 0;
case NM_VALUE_TYPE_UINT64:
NM_CMP_DIRECT(*((const guint64 *) p_a), *((const guint64 *) p_b));
return 0;
case NM_VALUE_TYPE_STRING:
return nm_strcmp0(*((const char *const *) p_a), *((const char *const *) p_b));
case NM_VALUE_TYPE_BYTES:
case NM_VALUE_TYPE_STRV:
/* These types have implementation define memory representations. */
break;
case NM_VALUE_TYPE_NONE:
case NM_VALUE_TYPE_UNSPEC:
break;
}
return nm_assert_unreachable_val(0);
}
static inline gboolean
nm_value_type_equal(NMValueType value_type, gconstpointer p_a, gconstpointer p_b)
{
return nm_value_type_cmp(value_type, p_a, p_b) == 0;
}
static inline void
nm_value_type_copy(NMValueType value_type, gpointer dst, gconstpointer src)
{
switch (value_type) {
case NM_VALUE_TYPE_BOOL:
(*((bool *) dst) = *((const bool *) src));
return;
case NM_VALUE_TYPE_INT32:
(*((gint32 *) dst) = *((const gint32 *) src));
return;
case NM_VALUE_TYPE_INT:
case NM_VALUE_TYPE_ENUM:
(*((int *) dst) = *((const int *) src));
return;
case NM_VALUE_TYPE_INT64:
(*((gint64 *) dst) = *((const gint64 *) src));
return;
case NM_VALUE_TYPE_UINT32:
(*((guint32 *) dst) = *((const guint32 *) src));
return;
case NM_VALUE_TYPE_UINT:
case NM_VALUE_TYPE_FLAGS:
(*((guint *) dst) = *((const guint *) src));
return;
case NM_VALUE_TYPE_UINT64:
(*((guint64 *) dst) = *((const guint64 *) src));
return;
case NM_VALUE_TYPE_STRING:
/* self assignment safe! */
if (*((char **) dst) != *((const char *const *) src)) {
_nm_unused char *old = *((char **) dst);
*((char **) dst) = g_strdup(*((const char *const *) src));
}
return;
case NM_VALUE_TYPE_BYTES:
case NM_VALUE_TYPE_STRV:
/* These types have implementation define memory representations. */
break;
case NM_VALUE_TYPE_NONE:
case NM_VALUE_TYPE_UNSPEC:
break;
}
nm_assert_not_reached();
}
static inline void
nm_value_type_get_from_variant(NMValueType value_type,
gpointer dst,
GVariant *variant,
gboolean clone)
{
switch (value_type) {
case NM_VALUE_TYPE_BOOL:
*((bool *) dst) = g_variant_get_boolean(variant);
return;
case NM_VALUE_TYPE_INT32:
*((gint32 *) dst) = g_variant_get_int32(variant);
return;
case NM_VALUE_TYPE_INT64:
*((gint64 *) dst) = g_variant_get_int64(variant);
return;
case NM_VALUE_TYPE_UINT32:
*((guint32 *) dst) = g_variant_get_uint32(variant);
return;
case NM_VALUE_TYPE_UINT64:
*((guint64 *) dst) = g_variant_get_uint64(variant);
return;
case NM_VALUE_TYPE_STRING:
if (clone) {
_nm_unused gs_free char *old = *((char **) dst);
*((char **) dst) = g_variant_dup_string(variant, NULL);
} else {
/* we don't clone the string, nor free the previous value. */
*((const char **) dst) = g_variant_get_string(variant, NULL);
}
return;
case NM_VALUE_TYPE_BYTES:
case NM_VALUE_TYPE_STRV:
/* These types have implementation define memory representations. */
break;
case NM_VALUE_TYPE_INT:
case NM_VALUE_TYPE_UINT:
case NM_VALUE_TYPE_ENUM:
case NM_VALUE_TYPE_FLAGS:
/* These types don't have a defined variant type, because it's not
* clear how many bits we would need or how to handle the type. */
break;
case NM_VALUE_TYPE_NONE:
case NM_VALUE_TYPE_UNSPEC:
break;
}
nm_assert_not_reached();
}
static inline GVariant *
nm_value_type_to_variant(NMValueType value_type, gconstpointer src)
{
const char *v_string;
switch (value_type) {
case NM_VALUE_TYPE_BOOL:
return g_variant_new_boolean(*((const bool *) src));
case NM_VALUE_TYPE_INT32:
return g_variant_new_int32(*((const gint32 *) src));
case NM_VALUE_TYPE_INT64:
return g_variant_new_int64(*((const gint64 *) src));
case NM_VALUE_TYPE_UINT32:
return g_variant_new_uint32(*((const guint32 *) src));
case NM_VALUE_TYPE_UINT64:
return g_variant_new_uint64(*((const guint64 *) src));
case NM_VALUE_TYPE_STRING:
v_string = *((const char *const *) src);
return v_string ? g_variant_new_string(v_string) : NULL;
case NM_VALUE_TYPE_BYTES:
case NM_VALUE_TYPE_STRV:
/* These types have implementation define memory representations. */
break;
case NM_VALUE_TYPE_INT:
case NM_VALUE_TYPE_UINT:
case NM_VALUE_TYPE_ENUM:
case NM_VALUE_TYPE_FLAGS:
/* These types don't have a defined variant type, because it's not
* clear how many bits we would need or how to handle the type. */
break;
case NM_VALUE_TYPE_NONE:
case NM_VALUE_TYPE_UNSPEC:
break;
}
return nm_assert_unreachable_val(NULL);
}
static inline const GVariantType *
nm_value_type_get_variant_type(NMValueType value_type)
{
switch (value_type) {
case NM_VALUE_TYPE_BOOL:
return G_VARIANT_TYPE_BOOLEAN;
case NM_VALUE_TYPE_INT32:
return G_VARIANT_TYPE_INT32;
case NM_VALUE_TYPE_INT64:
return G_VARIANT_TYPE_INT64;
case NM_VALUE_TYPE_UINT32:
return G_VARIANT_TYPE_UINT32;
case NM_VALUE_TYPE_UINT64:
return G_VARIANT_TYPE_UINT64;
case NM_VALUE_TYPE_STRING:
return G_VARIANT_TYPE_STRING;
case NM_VALUE_TYPE_BYTES:
return G_VARIANT_TYPE_BYTESTRING;
case NM_VALUE_TYPE_STRV:
return G_VARIANT_TYPE_STRING_ARRAY;
case NM_VALUE_TYPE_INT:
case NM_VALUE_TYPE_UINT:
case NM_VALUE_TYPE_ENUM:
case NM_VALUE_TYPE_FLAGS:
/* These types don't have a defined variant type, because it's not
* clear how many bits we would need or how to handle the type. */
/* fall-through */
case NM_VALUE_TYPE_NONE:
case NM_VALUE_TYPE_UNSPEC:
break;
}
nm_assert_not_reached();
return NULL;
}
/*****************************************************************************/
#endif /* NM_VALUE_TYPE_DEFINE_FUNCTIONS */
#endif /* __NM_VALUE_TYPE_H__ */
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