mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-24 00:20:01 +00:00
499 lines
12 KiB
C
499 lines
12 KiB
C
#include "rmsgpack_dom.h"
|
|
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stdarg.h>
|
|
|
|
#include "rmsgpack.h"
|
|
|
|
#define MAX_DEPTH 128
|
|
|
|
struct dom_reader_state
|
|
{
|
|
int i;
|
|
struct rmsgpack_dom_value *stack[MAX_DEPTH];
|
|
};
|
|
|
|
static struct rmsgpack_dom_value *dom_reader_state_pop(struct dom_reader_state *s)
|
|
{
|
|
struct rmsgpack_dom_value *v = s->stack[s->i];
|
|
s->i--;
|
|
return v;
|
|
}
|
|
|
|
static int dom_reader_state_push(struct dom_reader_state *s, struct rmsgpack_dom_value *v)
|
|
{
|
|
if ((s->i + 1) == MAX_DEPTH)
|
|
return -ENOMEM;
|
|
s->i++;
|
|
s->stack[s->i] = v;
|
|
return 0;
|
|
}
|
|
|
|
static int dom_read_nil(void *data)
|
|
{
|
|
struct dom_reader_state *dom_state = (struct dom_reader_state *)data;
|
|
struct rmsgpack_dom_value *v =
|
|
(struct rmsgpack_dom_value*)dom_reader_state_pop(dom_state);
|
|
v->type = RDT_NULL;
|
|
return 0;
|
|
}
|
|
|
|
static int dom_read_bool(int value, void *data)
|
|
{
|
|
struct dom_reader_state *dom_state = (struct dom_reader_state *)data;
|
|
struct rmsgpack_dom_value *v =
|
|
(struct rmsgpack_dom_value*)dom_reader_state_pop(dom_state);
|
|
|
|
v->type = RDT_BOOL;
|
|
v->val.bool_ = value;
|
|
return 0;
|
|
}
|
|
|
|
static int dom_read_int(int64_t value, void *data)
|
|
{
|
|
struct dom_reader_state *dom_state = (struct dom_reader_state *)data;
|
|
struct rmsgpack_dom_value *v =
|
|
(struct rmsgpack_dom_value*)dom_reader_state_pop(dom_state);
|
|
|
|
v->type = RDT_INT;
|
|
v->val.int_ = value;
|
|
return 0;
|
|
}
|
|
|
|
static int dom_read_uint(uint64_t value, void *data)
|
|
{
|
|
struct dom_reader_state *dom_state = (struct dom_reader_state *)data;
|
|
struct rmsgpack_dom_value *v =
|
|
(struct rmsgpack_dom_value*)dom_reader_state_pop(dom_state);
|
|
|
|
v->type = RDT_UINT;
|
|
v->val.uint_ = value;
|
|
return 0;
|
|
}
|
|
|
|
static int dom_read_string(char *value, uint32_t len, void *data)
|
|
{
|
|
struct dom_reader_state *dom_state = (struct dom_reader_state *)data;
|
|
struct rmsgpack_dom_value *v =
|
|
(struct rmsgpack_dom_value*)dom_reader_state_pop(dom_state);
|
|
|
|
v->type = RDT_STRING;
|
|
v->val.string.len = len;
|
|
v->val.string.buff = value;
|
|
return 0;
|
|
}
|
|
|
|
static int dom_read_bin(void *value, uint32_t len, void *data)
|
|
{
|
|
struct dom_reader_state *dom_state = (struct dom_reader_state *)data;
|
|
struct rmsgpack_dom_value *v =
|
|
(struct rmsgpack_dom_value*)dom_reader_state_pop(dom_state);
|
|
|
|
v->type = RDT_BINARY;
|
|
v->val.binary.len = len;
|
|
v->val.binary.buff = (char *)value;
|
|
return 0;
|
|
}
|
|
|
|
static int dom_read_map_start(uint32_t len, void *data)
|
|
{
|
|
unsigned i;
|
|
struct rmsgpack_dom_pair *items = NULL;
|
|
struct dom_reader_state *dom_state = (struct dom_reader_state *)data;
|
|
struct rmsgpack_dom_value *v = dom_reader_state_pop(dom_state);
|
|
|
|
v->type = RDT_MAP;
|
|
v->val.map.len = len;
|
|
v->val.map.items = NULL;
|
|
|
|
items = (struct rmsgpack_dom_pair *)calloc(len,
|
|
sizeof(struct rmsgpack_dom_pair));
|
|
|
|
if (!items)
|
|
return -ENOMEM;
|
|
|
|
v->val.map.items = items;
|
|
|
|
for (i = 0; i < len; i++)
|
|
{
|
|
if (dom_reader_state_push(dom_state, &items[i].value) < 0)
|
|
return -ENOMEM;
|
|
if (dom_reader_state_push(dom_state, &items[i].key) < 0)
|
|
return -ENOMEM;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dom_read_array_start(uint32_t len, void *data)
|
|
{
|
|
unsigned i;
|
|
struct dom_reader_state *dom_state = (struct dom_reader_state *)data;
|
|
struct rmsgpack_dom_value *v = dom_reader_state_pop(dom_state);
|
|
struct rmsgpack_dom_value *items = NULL;
|
|
|
|
v->type = RDT_ARRAY;
|
|
v->val.array.len = len;
|
|
v->val.array.items = NULL;
|
|
|
|
items = (struct rmsgpack_dom_value *)calloc(len, sizeof(struct rmsgpack_dom_pair));
|
|
|
|
if (!items)
|
|
return -ENOMEM;
|
|
|
|
v->val.array.items = items;
|
|
|
|
for (i = 0; i < len; i++)
|
|
{
|
|
if (dom_reader_state_push(dom_state, &items[i]) < 0)
|
|
return -ENOMEM;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct rmsgpack_read_callbacks dom_reader_callbacks = {
|
|
dom_read_nil,
|
|
dom_read_bool,
|
|
dom_read_int,
|
|
dom_read_uint,
|
|
dom_read_string,
|
|
dom_read_bin,
|
|
dom_read_map_start,
|
|
dom_read_array_start
|
|
};
|
|
|
|
void rmsgpack_dom_value_free(struct rmsgpack_dom_value *v)
|
|
{
|
|
unsigned i;
|
|
|
|
switch (v->type)
|
|
{
|
|
case RDT_STRING:
|
|
free(v->val.string.buff);
|
|
break;
|
|
case RDT_BINARY:
|
|
free(v->val.binary.buff);
|
|
break;
|
|
case RDT_MAP:
|
|
for (i = 0; i < v->val.map.len; i++)
|
|
{
|
|
rmsgpack_dom_value_free(&v->val.map.items[i].key);
|
|
rmsgpack_dom_value_free(&v->val.map.items[i].value);
|
|
}
|
|
free(v->val.map.items);
|
|
break;
|
|
case RDT_ARRAY:
|
|
for (i = 0; i < v->val.array.len; i++)
|
|
rmsgpack_dom_value_free(&v->val.array.items[i]);
|
|
free(v->val.array.items);
|
|
break;
|
|
case RDT_NULL:
|
|
case RDT_INT:
|
|
case RDT_BOOL:
|
|
case RDT_UINT:
|
|
/* Do nothing */
|
|
break;
|
|
}
|
|
}
|
|
|
|
struct rmsgpack_dom_value *rmsgpack_dom_value_map_value(
|
|
const struct rmsgpack_dom_value *map,
|
|
const struct rmsgpack_dom_value *key)
|
|
{
|
|
unsigned i;
|
|
if (map->type != RDT_MAP)
|
|
return NULL;
|
|
|
|
for (i = 0; i < map->val.map.len; i++)
|
|
{
|
|
if (rmsgpack_dom_value_cmp(key, &map->val.map.items[i].key) == 0)
|
|
return &map->val.map.items[i].value;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
int rmsgpack_dom_value_cmp(
|
|
const struct rmsgpack_dom_value *a,
|
|
const struct rmsgpack_dom_value *b
|
|
)
|
|
{
|
|
int rv;
|
|
unsigned i;
|
|
|
|
if (a == b)
|
|
return 1;
|
|
|
|
if (a->type != b->type)
|
|
return 1;
|
|
|
|
switch (a->type)
|
|
{
|
|
case RDT_NULL:
|
|
return 0;
|
|
case RDT_BOOL:
|
|
return a->val.bool_ == b->val.bool_ ? 0 : 1;
|
|
case RDT_INT:
|
|
return a->val.int_ == b->val.int_ ? 0 : 1;
|
|
case RDT_UINT:
|
|
return a->val.uint_ == b->val.uint_ ? 0 : 1;
|
|
case RDT_STRING:
|
|
if (a->val.string.len != b->val.string.len)
|
|
return 1;
|
|
return strncmp(a->val.string.buff, b->val.string.buff, a->val.string.len);
|
|
case RDT_BINARY:
|
|
if (a->val.binary.len != b->val.binary.len)
|
|
return 1;
|
|
return memcmp(a->val.binary.buff, b->val.binary.buff, a->val.binary.len);
|
|
case RDT_MAP:
|
|
if (a->val.map.len != b->val.map.len)
|
|
return 1;
|
|
for (i = 0; i < a->val.map.len; i++)
|
|
{
|
|
if ((rv = rmsgpack_dom_value_cmp(&a->val.map.items[i].key,
|
|
&b->val.map.items[i].key)) != 0)
|
|
return rv;
|
|
if ((rv = rmsgpack_dom_value_cmp(&a->val.map.items[i].value,
|
|
&b->val.map.items[i].value)) != 0)
|
|
return rv;
|
|
}
|
|
break;
|
|
case RDT_ARRAY:
|
|
if (a->val.array.len != b->val.array.len)
|
|
return 1;
|
|
for (i = 0; i < a->val.array.len; i++)
|
|
{
|
|
if ((rv = rmsgpack_dom_value_cmp(&a->val.array.items[i],
|
|
&b->val.array.items[i])) != 0)
|
|
return rv;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
void rmsgpack_dom_value_print(struct rmsgpack_dom_value *obj)
|
|
{
|
|
unsigned i;
|
|
|
|
switch (obj->type)
|
|
{
|
|
case RDT_NULL:
|
|
printf("nil");
|
|
break;
|
|
case RDT_BOOL:
|
|
if (obj->val.bool_)
|
|
printf("true");
|
|
else
|
|
printf("false");
|
|
break;
|
|
case RDT_INT:
|
|
#ifdef _WIN32
|
|
printf("%I64d", (signed long long)obj->val.int_);
|
|
#else
|
|
printf("%lld", (signed long long)obj->val.int_);
|
|
#endif
|
|
break;
|
|
case RDT_UINT:
|
|
#ifdef _WIN32
|
|
printf("%I64u", (unsigned long long)obj->val.uint_);
|
|
#else
|
|
printf("%llu", (unsigned long long)obj->val.uint_);
|
|
#endif
|
|
break;
|
|
case RDT_STRING:
|
|
printf("\"%s\"", obj->val.string.buff);
|
|
break;
|
|
case RDT_BINARY:
|
|
printf("\"");
|
|
for (i = 0; i < obj->val.binary.len; i++)
|
|
printf("%02X", (unsigned char) obj->val.binary.buff[i]);
|
|
printf("\"");
|
|
break;
|
|
case RDT_MAP:
|
|
printf("{");
|
|
for (i = 0; i < obj->val.map.len; i++)
|
|
{
|
|
rmsgpack_dom_value_print(&obj->val.map.items[i].key);
|
|
printf(": ");
|
|
rmsgpack_dom_value_print(&obj->val.map.items[i].value);
|
|
if (i < (obj->val.map.len - 1))
|
|
printf(", ");
|
|
}
|
|
printf("}");
|
|
break;
|
|
case RDT_ARRAY:
|
|
printf("[");
|
|
for (i = 0; i < obj->val.array.len; i++)
|
|
{
|
|
rmsgpack_dom_value_print(&obj->val.array.items[i]);
|
|
if (i < (obj->val.array.len - 1))
|
|
printf(", ");
|
|
}
|
|
printf("]");
|
|
}
|
|
}
|
|
int rmsgpack_dom_write(RFILE *fd, const struct rmsgpack_dom_value *obj)
|
|
{
|
|
unsigned i;
|
|
int rv = 0;
|
|
int written = 0;
|
|
|
|
switch (obj->type)
|
|
{
|
|
case RDT_NULL:
|
|
return rmsgpack_write_nil(fd);
|
|
case RDT_BOOL:
|
|
return rmsgpack_write_bool(fd, obj->val.bool_);
|
|
case RDT_INT:
|
|
return rmsgpack_write_int(fd, obj->val.int_);
|
|
case RDT_UINT:
|
|
return rmsgpack_write_uint(fd, obj->val.uint_);
|
|
case RDT_STRING:
|
|
return rmsgpack_write_string(fd, obj->val.string.buff, obj->val.string.len);
|
|
case RDT_BINARY:
|
|
return rmsgpack_write_bin(fd, obj->val.binary.buff, obj->val.binary.len);
|
|
case RDT_MAP:
|
|
if ((rv = rmsgpack_write_map_header(fd, obj->val.map.len)) < 0)
|
|
return rv;
|
|
written += rv;
|
|
|
|
for (i = 0; i < obj->val.map.len; i++)
|
|
{
|
|
if ((rv = rmsgpack_dom_write(fd, &obj->val.map.items[i].key)) < 0)
|
|
return rv;
|
|
written += rv;
|
|
if ((rv = rmsgpack_dom_write(fd, &obj->val.map.items[i].value)) < 0)
|
|
return rv;
|
|
written += rv;
|
|
}
|
|
break;
|
|
case RDT_ARRAY:
|
|
if ((rv = rmsgpack_write_array_header(fd, obj->val.array.len)) < 0)
|
|
return rv;
|
|
written += rv;
|
|
|
|
for (i = 0; i < obj->val.array.len; i++)
|
|
{
|
|
if ((rv = rmsgpack_dom_write(fd, &obj->val.array.items[i])) < 0)
|
|
return rv;
|
|
written += rv;
|
|
}
|
|
}
|
|
return written;
|
|
}
|
|
|
|
int rmsgpack_dom_read(RFILE *fd, struct rmsgpack_dom_value *out)
|
|
{
|
|
struct dom_reader_state s;
|
|
int rv = 0;
|
|
|
|
s.i = 0;
|
|
s.stack[0] = out;
|
|
|
|
rv = rmsgpack_read(fd, &dom_reader_callbacks, &s);
|
|
|
|
if (rv < 0)
|
|
rmsgpack_dom_value_free(out);
|
|
|
|
return rv;
|
|
}
|
|
|
|
int rmsgpack_dom_read_into(RFILE *fd, ...)
|
|
{
|
|
va_list ap;
|
|
struct rmsgpack_dom_value map;
|
|
int rv;
|
|
const char *key_name;
|
|
struct rmsgpack_dom_value key;
|
|
struct rmsgpack_dom_value *value;
|
|
int64_t *int_value;
|
|
uint64_t *uint_value;
|
|
int *bool_value;
|
|
char *buff_value;
|
|
uint64_t min_len;
|
|
int value_type = 0;
|
|
|
|
va_start(ap, fd);
|
|
|
|
rv = rmsgpack_dom_read(fd, &map);
|
|
|
|
(void)value_type;
|
|
|
|
if (rv < 0)
|
|
{
|
|
va_end(ap);
|
|
return rv;
|
|
}
|
|
|
|
if (map.type != RDT_MAP)
|
|
{
|
|
rv = -EINVAL;
|
|
goto clean;
|
|
}
|
|
|
|
while (1)
|
|
{
|
|
key_name = va_arg(ap, const char *);
|
|
|
|
if (!key_name)
|
|
{
|
|
rv = 0;
|
|
goto clean;
|
|
}
|
|
|
|
key.type = RDT_STRING;
|
|
key.val.string.len = strlen(key_name);
|
|
key.val.string.buff = (char *) key_name;
|
|
|
|
value = rmsgpack_dom_value_map_value(&map, &key);
|
|
|
|
switch (value->type)
|
|
{
|
|
case RDT_INT:
|
|
int_value = va_arg(ap, int64_t *);
|
|
*int_value = value->val.int_;
|
|
break;
|
|
case RDT_BOOL:
|
|
bool_value = va_arg(ap, int *);
|
|
*bool_value = value->val.bool_;
|
|
break;
|
|
case RDT_UINT:
|
|
uint_value = va_arg(ap, uint64_t *);
|
|
*uint_value = value->val.uint_;
|
|
break;
|
|
case RDT_BINARY:
|
|
buff_value = va_arg(ap, char *);
|
|
uint_value = va_arg(ap, uint64_t *);
|
|
*uint_value = value->val.binary.len;
|
|
min_len = (value->val.binary.len > *uint_value) ?
|
|
*uint_value : value->val.binary.len;
|
|
|
|
memcpy(buff_value, value->val.binary.buff, (size_t)min_len);
|
|
break;
|
|
case RDT_STRING:
|
|
buff_value = va_arg(ap, char *);
|
|
uint_value = va_arg(ap, uint64_t *);
|
|
min_len = (value->val.string.len + 1 > *uint_value) ?
|
|
*uint_value : value->val.string.len + 1;
|
|
*uint_value = min_len;
|
|
|
|
memcpy(buff_value, value->val.string.buff, (size_t)min_len);
|
|
break;
|
|
default:
|
|
rv = -1;
|
|
goto clean;
|
|
}
|
|
}
|
|
|
|
clean:
|
|
va_end(ap);
|
|
rmsgpack_dom_value_free(&map);
|
|
return 0;
|
|
}
|