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Shrink py_obj_base_t size to 4 machine words.

This commit is contained in:
Damien 2013-10-22 16:05:11 +01:00
parent eefcc79022
commit f086ecf57c
1 changed files with 27 additions and 23 deletions
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50
py/runtime.c
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@ -42,7 +42,7 @@ typedef enum {
O_FLOAT,
#endif
O_EXCEPTION_0,
O_EXCEPTION_2,
O_EXCEPTION_N,
O_RANGE,
O_RANGE_IT,
O_FUN_0,
@ -75,9 +75,11 @@ typedef struct _py_map_elem_t {
} py_map_elem_t;
typedef struct _py_map_t {
py_map_kind_t kind; // TODO merge this 1-bit field into alloc or used
struct {
py_map_kind_t kind : 1;
machine_uint_t used : (8 * BYTES_PER_WORD - 1);
};
machine_uint_t alloc;
machine_uint_t used;
py_map_elem_t *table;
} py_map_t;
@ -94,13 +96,12 @@ struct _py_obj_base_t {
struct { // for O_EXCEPTION_0
qstr id;
} u_exc0;
struct { // for O_EXCEPTION_2
// TODO reduce size or make generic object or something
struct { // for O_EXCEPTION_N
// TODO make generic object or something
qstr id;
const char *fmt;
const char *s1;
const char *s2;
} u_exc2;
int n_args;
const void **args;
} u_exc_n;
struct { // for O_RANGE
// TODO make generic object or something
machine_int_t start;
@ -140,17 +141,17 @@ struct _py_obj_base_t {
py_obj_t self;
} u_bound_meth;
struct { // for O_TUPLE, O_LIST
int alloc;
int len;
machine_uint_t alloc;
machine_uint_t len;
py_obj_t *items;
} u_tuple_list;
struct { // for O_TUPLE_IT, O_LIST_IT
py_obj_base_t *obj;
int cur;
machine_uint_t cur;
} u_tuple_list_it;
struct { // for O_SET
int alloc;
int used;
machine_uint_t alloc;
machine_uint_t used;
py_obj_t *table;
} u_set;
py_map_t u_map; // for O_MAP
@ -190,8 +191,8 @@ int get_doubling_prime_greater_or_equal_to(int x) {
void py_map_init(py_map_t *map, py_map_kind_t kind, int n) {
map->kind = kind;
map->alloc = get_doubling_prime_greater_or_equal_to(n + 1);
map->used = 0;
map->alloc = get_doubling_prime_greater_or_equal_to(n + 1);
map->table = m_new0(py_map_elem_t, map->alloc);
}
@ -350,11 +351,13 @@ py_obj_t py_obj_new_exception_0(qstr id) {
py_obj_t py_obj_new_exception_2(qstr id, const char *fmt, const char *s1, const char *s2) {
py_obj_base_t *o = m_new(py_obj_base_t, 1);
o->kind = O_EXCEPTION_2;
o->u_exc2.id = id;
o->u_exc2.fmt = fmt;
o->u_exc2.s1 = s1;
o->u_exc2.s2 = s2;
o->kind = O_EXCEPTION_N;
o->u_exc_n.id = id;
o->u_exc_n.n_args = 3;
o->u_exc_n.args = m_new(const void*, 3);
o->u_exc_n.args[0] = fmt;
o->u_exc_n.args[1] = s1;
o->u_exc_n.args[2] = s2;
return (py_obj_t)o;
}
@ -519,6 +522,7 @@ FILE *fp_native = NULL;
#endif
void rt_init() {
printf("%u\n", sizeof(py_obj_base_t));
q_append = qstr_from_str_static("append");
q_print = qstr_from_str_static("print");
q_len = qstr_from_str_static("len");
@ -751,9 +755,9 @@ void py_obj_print(py_obj_t o_in) {
case O_EXCEPTION_0:
printf("%s", qstr_str(o->u_exc0.id));
break;
case O_EXCEPTION_2:
printf("%s: ", qstr_str(o->u_exc2.id));
printf(o->u_exc2.fmt, o->u_exc2.s1, o->u_exc2.s2);
case O_EXCEPTION_N:
printf("%s: ", qstr_str(o->u_exc_n.id));
printf(o->u_exc_n.args[0], o->u_exc_n.args[1], o->u_exc_n.args[2]);
break;
case O_GEN_INSTANCE:
printf("<generator object 'fun-name' at %p>", o);