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#include "remote_server_connection.h"
#include "ybus.h"
#include <util/random/random.h>
#include <util/string/printf.h>
#include <util/system/atomic.h>
#include <string.h>
using namespace NBus;
namespace NBus {
using namespace NBus::NPrivate;
TBusIdentity::TBusIdentity()
: MessageId(0)
, Size(0)
, Flags(0)
, LocalFlags(0)
{
}
TBusIdentity::~TBusIdentity() {
// TODO: print local flags
#ifndef NDEBUG
Y_VERIFY(LocalFlags == 0, "local flags must be zero at this point; message type is %s",
MessageType.value_or("unknown").c_str());
#else
Y_VERIFY(LocalFlags == 0, "local flags must be zero at this point");
#endif
}
TNetAddr TBusIdentity::GetNetAddr() const {
if (!!Connection) {
return Connection->GetAddr();
} else {
Y_FAIL();
}
}
void TBusIdentity::Pack(char* dest) {
memcpy(dest, this, sizeof(TBusIdentity));
LocalFlags = 0;
// prevent decref
new (&Connection) TIntrusivePtr<TRemoteServerConnection>;
}
void TBusIdentity::Unpack(const char* src) {
Y_VERIFY(LocalFlags == 0);
Y_VERIFY(!Connection);
memcpy(this, src, sizeof(TBusIdentity));
}
void TBusHeader::GenerateId() {
for (;;) {
Id = RandomNumber<TBusKey>();
// Skip reserved ids
if (IsBusKeyValid(Id))
return;
}
}
TBusMessage::TBusMessage(ui16 type, int approxsize)
//: TCtr("BusMessage")
: TRefCounted<TBusMessage, TAtomicCounter, TDelete>(1)
, LocalFlags(0)
, RequestSize(0)
, Data(nullptr)
{
Y_UNUSED(approxsize);
GetHeader()->Type = type;
DoReset();
}
TBusMessage::TBusMessage(ECreateUninitialized)
//: TCtr("BusMessage")
: TRefCounted<TBusMessage, TAtomicCounter, TDelete>(1)
, LocalFlags(0)
, Data(nullptr)
{
}
TString TBusMessage::Describe() const {
return Sprintf("object type: %s, message type: %d", TypeName(*this).data(), int(GetHeader()->Type));
}
TBusMessage::~TBusMessage() {
#ifndef NDEBUG
Y_VERIFY(GetHeader()->Id != YBUS_KEYINVALID, "must not be invalid key, message type: %d, ", int(Type));
GetHeader()->Id = YBUS_KEYINVALID;
Data = (void*)17;
CheckClean();
#endif
}
void TBusMessage::DoReset() {
GetHeader()->SendTime = 0;
GetHeader()->Size = 0;
GetHeader()->FlagsInternal = 0;
GetHeader()->GenerateId();
GetHeader()->SetVersionInternal();
}
void TBusMessage::Reset() {
CheckClean();
DoReset();
}
void TBusMessage::CheckClean() const {
if (Y_UNLIKELY(LocalFlags != 0)) {
TString describe = Describe();
TString localFlags = LocalFlagSetToString(LocalFlags);
Y_FAIL("message local flags must be zero, got: %s, message: %s", localFlags.data(), describe.data());
}
}
///////////////////////////////////////////////////////
/// \brief Unpacks header from network order
/// \todo ntoh instead of memcpy
int TBusHeader::ReadHeader(TArrayRef<const char> data) {
Y_ASSERT(data.size() >= sizeof(TBusHeader));
memcpy(this, data.data(), sizeof(TBusHeader));
return sizeof(TBusHeader);
}
///////////////////////////////////////////////////////
/// \brief Packs header to network order
//////////////////////////////////////////////////////////
/// \brief serialize message identity to be used to construct reply message
/// function stores messageid, flags and connection reply address into the buffer
/// that can later be used to construct a reply to the message
void TBusMessage::GetIdentity(TBusIdentity& data) const {
data.MessageId = GetHeader()->Id;
data.Size = GetHeader()->Size;
data.Flags = GetHeader()->FlagsInternal;
//data.LocalFlags = LocalFlags;
}
////////////////////////////////////////////////////////////
/// \brief set message identity from serialized form
/// function restores messageid, flags and connection reply address from the buffer
/// into the reply message
void TBusMessage::SetIdentity(const TBusIdentity& data) {
// TODO: wrong assertion: YBUS_KEYMIN is 0
Y_ASSERT(data.MessageId != 0);
bool compressed = IsCompressed();
GetHeader()->Id = data.MessageId;
GetHeader()->FlagsInternal = data.Flags;
LocalFlags = data.LocalFlags & ~MESSAGE_IN_WORK;
ReplyTo = data.Connection->PeerAddrSocketAddr;
SetCompressed(compressed || IsCompressedResponse());
}
void TBusMessage::SetCompressed(bool v) {
if (v) {
GetHeader()->FlagsInternal |= MESSAGE_COMPRESS_INTERNAL;
} else {
GetHeader()->FlagsInternal &= ~(MESSAGE_COMPRESS_INTERNAL);
}
}
void TBusMessage::SetCompressedResponse(bool v) {
if (v) {
GetHeader()->FlagsInternal |= MESSAGE_COMPRESS_RESPONSE;
} else {
GetHeader()->FlagsInternal &= ~(MESSAGE_COMPRESS_RESPONSE);
}
}
TString TBusIdentity::ToString() const {
TStringStream ss;
ss << "msg-id=" << MessageId
<< " size=" << Size;
if (!!Connection) {
ss << " conn=" << Connection->GetAddr();
}
ss
<< " flags=" << Flags
<< " local-flags=" << LocalFlags
#ifndef NDEBUG
<< " msg-type= " << MessageType.value_or("unknown").c_str()
#endif
;
return ss.Str();
}
}
template <>
void Out<TBusIdentity>(IOutputStream& os, TTypeTraits<TBusIdentity>::TFuncParam ident) {
os << ident.ToString();
}
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