int msgpack_vrefbuffer_append_copy(msgpack_vrefbuffer* vbuf,
const char* buf, unsigned int len)
{
msgpack_vrefbuffer_chunk* chunk;
char* m;
msgpack_vrefbuffer_inner_buffer* const ib = &vbuf->inner_buffer;
if(ib->free < len) {
size_t sz = vbuf->chunk_size;
if(sz < len) {
sz = len;
}
chunk = (msgpack_vrefbuffer_chunk*)malloc(
sizeof(msgpack_vrefbuffer_chunk) + sz);
if(chunk == NULL) {
return -1;
}
chunk->next = ib->head;
ib->head = chunk;
ib->free = sz;
ib->ptr = ((char*)chunk) + sizeof(msgpack_vrefbuffer_chunk);
}
m = ib->ptr;
memcpy(m, buf, len);
ib->free -= len;
ib->ptr += len;
if(vbuf->tail != vbuf->array && m ==
(const char*)((vbuf->tail-1)->iov_base) + (vbuf->tail-1)->iov_len) {
(vbuf->tail-1)->iov_len += len;
return 0;
} else {
return msgpack_vrefbuffer_append_ref(vbuf, m, len);
}
}
void append_ref(const char* buf, size_t len)
{
if(msgpack_vrefbuffer_append_ref(this, buf, len) < 0) {
throw std::bad_alloc();
}
}