---------------------------------------------------------------------------
| 414 | } |
| 415 | //--------------------------------------------------------------------------- |
| 416 | bool TUDP::ReadFrom(void * data, int size, struct sockaddr * p, bool bPeek) |
| 417 | { |
| 418 | WSAError = 0; |
| 419 | Error = 0; |
| 420 | bytes = 0; |
| 421 | |
| 422 | if( !handle || size<=0 ) |
| 423 | { |
| 424 | WSAError = MYERROR_UNKNOWNPARAMS; |
| 425 | Error = 1; |
| 426 | if( Exceptions ) throw 0; |
| 427 | return !Error; |
| 428 | } |
| 429 | // ������� �������� �������� ������ |
| 430 | if( bBlockProtected ) |
| 431 | { |
| 432 | DWORD bufsize; |
| 433 | if( ioctlsocket(handle, FIONREAD, &bufsize) == SOCKET_ERROR ) |
| 434 | { |
| 435 | WSAError = WSAGetLastError(); |
| 436 | Error = 2; |
| 437 | if( Exceptions ) throw 0; |
| 438 | return !Error; |
| 439 | } |
| 440 | if( bufsize < (DWORD)size ) |
| 441 | { |
| 442 | WSAError = MYERROR_NOREQSIZE; |
| 443 | Error = 3; |
| 444 | if( Exceptions ) throw 0; |
| 445 | return !Error; |
| 446 | } |
| 447 | } |
| 448 | |
| 449 | int fromlen = sizeof(struct sockaddr); |
| 450 | bytes = recvfrom(handle, (char *)data, size, bPeek ? MSG_PEEK : 0, p, &fromlen); |
| 451 | if( bytes==SOCKET_ERROR ) |
| 452 | { |
| 453 | WSAError = WSAGetLastError(); |
| 454 | Error = 4; |
| 455 | bytes = 0; |
| 456 | if( Exceptions ) throw 0; |
| 457 | return !Error; |
| 458 | } |
| 459 | if( bytes != size ) |
| 460 | { |
| 461 | // ������ ����������, ����� � �������� ������ ��������� UPD ������� |
| 462 | // �������� UDP ������ ����� ������ �� ������ |
| 463 | // ������� ����� ��������� ������ ������ bytes < size |
| 464 | // ReadLength() ���� ��������� ������ ���� ������� � �������� ������ |
| 465 | WSAError = MYERROR_READCOUNT; |
| 466 | Error = 5; |
| 467 | if( Exceptions ) throw 0; |
| 468 | return !Error; |
| 469 | } |
| 470 | InBytes += bytes; |
| 471 | return ! Error; |
| 472 | } |
| 473 | //--------------------------------------------------------------------------- |