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eina_value_02.c
//Compile with:
//gcc eina_value_02.c -o eina_value_02 `pkg-config --cflags --libs eina`
#include <Eina.h>
static Eina_Value_Struct_Desc *V1_DESC = NULL;
static Eina_Value_Struct_Desc *V2_DESC = NULL;
void value_init(void)
{
typedef struct _My_Struct_V1 {
int param1;
char param2;
} My_Struct_V1;
static Eina_Value_Struct_Member v1_members[] = {
// no eina_value_type as they are not constant initializers, see below.
EINA_VALUE_STRUCT_MEMBER(NULL, My_Struct_V1, param1),
EINA_VALUE_STRUCT_MEMBER(NULL, My_Struct_V1, param2)
};
v1_members[0].type = EINA_VALUE_TYPE_INT;
v1_members[1].type = EINA_VALUE_TYPE_CHAR;
static Eina_Value_Struct_Desc v1_desc = {
EINA_VALUE_STRUCT_DESC_VERSION,
NULL, // no special operations
v1_members,
EINA_C_ARRAY_LENGTH(v1_members),
sizeof(My_Struct_V1)
};
V1_DESC = &v1_desc;
typedef struct _My_Struct_V2 {
int param1;
char param2;
int param3;
} My_Struct_V2;
static Eina_Value_Struct_Member v2_members[] = {
// no eina_value_type as they are not constant initializers, see below.
EINA_VALUE_STRUCT_MEMBER(NULL, My_Struct_V2, param1),
EINA_VALUE_STRUCT_MEMBER(NULL, My_Struct_V2, param2),
EINA_VALUE_STRUCT_MEMBER(NULL, My_Struct_V2, param3)
};
v2_members[0].type = EINA_VALUE_TYPE_INT;
v2_members[1].type = EINA_VALUE_TYPE_CHAR;
v2_members[2].type = EINA_VALUE_TYPE_INT;
static Eina_Value_Struct_Desc v2_desc = {
EINA_VALUE_STRUCT_DESC_VERSION,
NULL, // no special operations
v2_members,
EINA_C_ARRAY_LENGTH(v2_members),
sizeof(My_Struct_V2)
};
V2_DESC = &v2_desc;
}
void rand_init(Eina_Value *v)
{
if (v->type != EINA_VALUE_TYPE_STRUCT)
return;
eina_value_struct_set(v, "param1", rand());
eina_value_struct_set(v, "param2", rand() % 256);
eina_value_struct_set(v, "param3", rand());
}
void my_struct_use(Eina_Value *params)
{
int p1, p3;
char p2;
eina_value_struct_get(params, "param1", &p1);
eina_value_struct_get(params, "param2", &p2);
printf("param1: %d\nparam2: %c\n", p1, p2);
if (eina_value_struct_get(params, "param3", &p3))
printf("param3: %d\n", p3);
}
int main(int argc, char **argv)
{
Eina_Value *v1, *v2;
eina_init();
value_init();
srand(time(NULL));
v1 = eina_value_struct_new(V1_DESC);
v2 = eina_value_struct_new(V2_DESC);
rand_init(v1);
my_struct_use(v1);
rand_init(v2);
my_struct_use(v2);
eina_value_free(v1);
eina_value_free(v2);
eina_shutdown();
}