int AcceptHandler::handle_input(ACE_HANDLE) { ACE_TRACE("AcceptHandler::handle_input(ACE_HANDLE)"); ACE_INET_Addr clientAddr; // create a new ReadHandler ReadHandler *reader = 0; ACE_NEW_NORETURN (reader, ReadHandler()); if (reader == 0) ACE_ERROR_RETURN((LM_ERROR, ACE_TEXT("%N:%l: Failed to allocate ") ACE_TEXT ("reader. (errno = %i: %m)\n"), errno), -1); // put reader in an auto pointer so we can use ACE_ERROR_RETURN safely auto_ptr<ReadHandler> pReader(reader); // accept the connection using the reader's stream if (mAcceptor.accept(reader->getStream(), &clientAddr) == -1) ACE_ERROR_RETURN((LM_ERROR, ACE_TEXT("%N:%l: Failed to accept ") ACE_TEXT ("client connection. (errno = %i: %m)\n"), errno), -1); // register the reader with the reactor if (mReactor->register_handler(reader, ACE_Event_Handler::READ_MASK) == -1) ACE_ERROR_RETURN((LM_ERROR, ACE_TEXT("%N:%l: Failed to register ") ACE_TEXT ("read handler. (errno = %i: %m)\n"), errno), -1); // from now on the read handler takes care of itself pReader.release(); return 0; // keep going }
void Socket::ReadHandlerInternal(boost::system::error_code error, size_t transferredBytes) { if (error) { CloseSocket(); return; } _readBuffer.WriteCompleted(transferredBytes); ReadHandler(); }
void Win32NamedPipeNetworkSession::implRead(char * buffer, std::size_t bufferLen) { if ( !mSocketPtr ) { RCF_LOG_4() << "Win32NamedPipeNetworkSession - connection has been closed."; return; } RCF_LOG_4()(bufferLen) << "Win32NamedPipeNetworkSession - calling ReadFile()."; ASIO_NS::windows::overlapped_ptr overlapped( mSocketPtr->get_io_service(), ReadHandler(sharedFromThis())); DWORD dwBytesRead = 0; bool readOk = false; HANDLE hPipe = mSocketPtr->native(); BOOL ok = ReadFile( hPipe, buffer, static_cast<DWORD>(bufferLen), &dwBytesRead, overlapped.get()); DWORD realError = 0; DWORD dwErr = 0; if (!ok) { dwErr = GetLastError(); if ( dwErr != ERROR_IO_PENDING && dwErr != ERROR_MORE_DATA) { realError = dwErr; } } if ( dwBytesRead || (ok && dwBytesRead == 0 && bufferLen == 0) || (!ok && realError == 0)) { readOk = true; } if (readOk) { overlapped.release(); } else { AsioErrorCode ec( dwErr, ASIO_NS::error::get_system_category()); overlapped.complete(ec, 0); } }
void IrcBot::ConnectHandler(const boost::system::error_code &error) { ConsoleMessage("connect handler"); if (!error) { boost::asio::write(sock, buffer(pass)); boost::asio::write(sock, buffer(nick)); boost::asio::write(sock, buffer(user)); sock.async_read_some(buffer(readBuffer), [this](boost::system::error_code ec, std::size_t bytesRead) { ReadHandler(ec, bytesRead); }); } }
void IrcBot::ReadHandler(const boost::system::error_code &error, std::size_t bytesRead) { if (shuttingDown) { return; } if (!error) { messageString = readBuffer.data(); std::cout << std::string(readBuffer.data(), bytesRead); HandlePing(messageString); // handle welcome message 001 if (messageString.find(serverWelcomeMessage) == 0)//if (messageString.find(":" + serverName + " 001") == 0) { Send(join); } HandleRequest(messageString); if (activeGame != NONE) { HandleGameInput(messageString); } readBuffer.fill('\0'); sock.async_read_some(buffer(readBuffer), [this](boost::system::error_code ec, std::size_t bytesRead) { ReadHandler(ec, bytesRead); }); } else { ConsoleMessage(error.message()); } }
/* * lower level routine for actually handling a request * deals with data (ping is handled higher) */ void *DataHandler(void *v) { struct handlerdata *hd = v; char *retbuffer = NULL; struct client_msg cm; // the return message #if OW_CYGWIN /* Random generator seem to need initialization for each new thread * If not, seed will be reset and rand() will return 0 the first call. */ { struct timeval tv; gettimeofday(&tv, NULL); srand((unsigned int) tv.tv_usec); } #endif memset(&cm, 0, sizeof(struct client_msg)); cm.version = MakeServerprotocol(OWSERVER_PROTOCOL_VERSION); cm.control_flags = hd->sm.control_flags; // default flag return -- includes persistence state /* Pre-handling for special testing mode to exclude certain messages */ switch ((enum msg_classification) hd->sm.type) { case msg_dirall: case msg_dirallslash: if (Globals.no_dirall) { LEVEL_DEBUG("DIRALL message rejected.") ; hd->sm.type = msg_error; } break; case msg_get: case msg_getslash: if (Globals.no_get) { LEVEL_DEBUG("GET message rejected.") ; hd->sm.type = msg_error; } break; default: break; } /* Now Check message types and only parse valid messages */ switch ((enum msg_classification) hd->sm.type) { // outer switch case msg_read: // good message case msg_write: // good message case msg_dir: // good message case msg_presence: // good message case msg_dirall: // good message case msg_dirallslash: // good message case msg_get: // good message case msg_getslash: // good message if (hd->sm.payload == 0) { /* Bad query -- no data after header */ LEVEL_DEBUG("No payload -- ignore.") ; cm.ret = -EBADMSG; } else { struct parsedname *pn; OWQ_allocate_struct_and_pointer(owq); pn = PN(owq); /* Parse the path string and crete query object */ LEVEL_CALL("DataHandler: parse path=%s", hd->sp.path); cm.ret = BAD( OWQ_create(hd->sp.path, owq) ) ? -1 : 0 ; if ( cm.ret != 0 ) { LEVEL_DEBUG("DataHandler: OWQ_create failed cm.ret=%d", cm.ret); break; } /* Use client persistent settings (temp scale, display mode ...) */ pn->control_flags = hd->sm.control_flags; /* Override some settings from control flags */ if ( (pn->control_flags & UNCACHED) != 0 ) { // client wants uncached pn->state |= ePS_uncached; } if ( (pn->control_flags & ALIAS_REQUEST) == 0 ) { // client wants unaliased pn->state |= ePS_unaliased; } /* Antilooping tags */ pn->tokens = hd->sp.tokens; pn->tokenstring = hd->sp.tokenstring; //printf("Handler: sm.sg=%X pn.state=%X\n", sm.sg, pn.state); //printf("Scale=%s\n", TemperatureScaleName(SGTemperatureScale(sm.sg))); switch ((enum msg_classification) hd->sm.type) { case msg_presence: LEVEL_CALL("Presence message for %s", SAFESTRING(pn->path)); // Basically, if we were able to ParsedName it's here! cm.size = 0; retbuffer = owmalloc( SERIAL_NUMBER_SIZE ) ; if ( retbuffer ) { memcpy( retbuffer, pn->sn, SERIAL_NUMBER_SIZE ) ; cm.payload = SERIAL_NUMBER_SIZE ; } else { cm.payload = 0 ; } cm.ret = 0; // good answer break; case msg_read: LEVEL_CALL("Read message"); retbuffer = ReadHandler(hd, &cm, owq); LEVEL_DEBUG("Read message done value=%p", retbuffer); break; case msg_write: LEVEL_CALL("Write message"); if ( (int) hd->sp.datasize < hd->sm.size ) { cm.ret = -EMSGSIZE; } else { /* set buffer (size already set) */ OWQ_assign_write_buffer( (ASCII *) hd->sp.data, hd->sm.size, hd->sm.offset, owq) ; WriteHandler(hd, &cm, owq); } break; case msg_dir: LEVEL_CALL("Directory message (one at a time)"); DirHandler(hd, &cm, pn); break; case msg_dirall: LEVEL_CALL("Directory message (all at once)"); retbuffer = DirallHandler(hd, &cm, pn); break; case msg_dirallslash: LEVEL_CALL("Directory message (all at once, with directory /)"); retbuffer = DirallslashHandler(hd, &cm, pn); break; case msg_get: if (IsDir(pn)) { LEVEL_CALL("Get -> Directory message (all at once)"); retbuffer = DirallHandler(hd, &cm, pn); } else { LEVEL_CALL("Get -> Read message"); retbuffer = ReadHandler(hd, &cm, owq); } break; case msg_getslash: if (IsDir(pn)) { LEVEL_CALL("Get -> Directory message (all at once)"); retbuffer = DirallslashHandler(hd, &cm, pn); } else { LEVEL_CALL("Get -> Read message"); retbuffer = ReadHandler(hd, &cm, owq); } break; default: // never reached LEVEL_CALL("Error: unknown message %d", (int) hd->sm.type); break; } OWQ_destroy(owq); LEVEL_DEBUG("DataHandler: FS_ParsedName_destroy done"); } break; case msg_nop: // "bad" message LEVEL_CALL("NOP message"); cm.ret = 0; break; case msg_size: // no longer used case msg_error: default: // "bad" message cm.ret = -ENOMSG; LEVEL_CALL("No message"); break; } LEVEL_DEBUG("DataHandler: cm.ret=%d", cm.ret); TOCLIENTLOCK(hd); if (cm.ret != -EIO) { ToClient(hd->file_descriptor, &cm, retbuffer); } else { ErrorToClient(hd, &cm) ; } // Signal to PingLoop that we're done. hd->toclient = toclient_complete ; if ( hd->ping_pipe[fd_pipe_write] != FILE_DESCRIPTOR_BAD ) { ignore_result = write( hd->ping_pipe[fd_pipe_write],"X",1) ; //dummy payload } TOCLIENTUNLOCK(hd); if (retbuffer) { owfree(retbuffer); } LEVEL_DEBUG("Finished with client request"); return VOID_RETURN; }