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/*
* upb - a minimalist implementation of protocol buffers.
*
* Copyright (c) 2010 Joshua Haberman. See LICENSE for details.
*
* Data structure for storing a message of protobuf data.
*/
#include "upb_msg.h"
#include "upb_decoder.h"
#include "upb_strstream.h"
static void upb_elem_free(upb_value v, upb_fielddef *f) {
switch(f->type) {
case UPB_TYPE(MESSAGE):
case UPB_TYPE(GROUP):
_upb_msg_free(upb_value_getmsg(v), upb_downcast_msgdef(f->def));
break;
case UPB_TYPE(STRING):
case UPB_TYPE(BYTES):
_upb_string_free(upb_value_getstr(v));
break;
default:
abort();
}
}
static void upb_elem_unref(upb_value v, upb_fielddef *f) {
assert(upb_elem_ismm(f));
upb_atomic_refcount_t *refcount = upb_value_getrefcount(v);
if (refcount && upb_atomic_unref(refcount))
upb_elem_free(v, f);
}
static void upb_field_free(upb_value v, upb_fielddef *f) {
if (upb_isarray(f)) {
_upb_array_free(upb_value_getarr(v), f);
} else {
upb_elem_free(v, f);
}
}
static void upb_field_unref(upb_value v, upb_fielddef *f) {
assert(upb_field_ismm(f));
upb_atomic_refcount_t *refcount = upb_value_getrefcount(v);
if (refcount && upb_atomic_unref(refcount))
upb_field_free(v, f);
}
upb_msg *upb_msg_new(upb_msgdef *md) {
upb_msg *msg = malloc(md->size);
// Clear all set bits and cached pointers.
memset(msg, 0, md->size);
upb_atomic_refcount_init(&msg->refcount, 1);
return msg;
}
void _upb_msg_free(upb_msg *msg, upb_msgdef *md) {
// Need to release refs on all sub-objects.
upb_msg_iter i;
for(i = upb_msg_begin(md); !upb_msg_done(i); i = upb_msg_next(md, i)) {
upb_fielddef *f = upb_msg_iter_field(i);
upb_valueptr p = _upb_msg_getptr(msg, f);
upb_valuetype_t type = upb_field_valuetype(f);
if (upb_field_ismm(f)) upb_field_unref(upb_value_read(p, type), f);
}
free(msg);
}
INLINE void upb_msg_sethas(upb_msg *msg, upb_fielddef *f) {
msg->data[f->field_index/8] |= (1 << (f->field_index % 8));
}
upb_array *upb_array_new(void) {
upb_array *arr = malloc(sizeof(*arr));
upb_atomic_refcount_init(&arr->refcount, 1);
arr->size = 0;
arr->len = 0;
arr->elements._void = NULL;
return arr;
}
void _upb_array_free(upb_array *arr, upb_fielddef *f) {
if (upb_elem_ismm(f)) {
// Need to release refs on sub-objects.
upb_valuetype_t type = upb_elem_valuetype(f);
for (upb_arraylen_t i = 0; i < arr->size; i++) {
upb_valueptr p = _upb_array_getptr(arr, f, i);
upb_elem_unref(upb_value_read(p, type), f);
}
}
if (arr->elements._void) free(arr->elements._void);
free(arr);
}
void upb_msg_register_handlers(upb_msg *msg, upb_msgdef *md,
upb_handlers *handlers, bool merge) {
static upb_handlerset handlerset = {
}
}
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