diff options
Diffstat (limited to 'src/zmq_decoder.cpp')
-rw-r--r-- | src/zmq_decoder.cpp | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/src/zmq_decoder.cpp b/src/zmq_decoder.cpp deleted file mode 100644 index dcf8e76..0000000 --- a/src/zmq_decoder.cpp +++ /dev/null @@ -1,114 +0,0 @@ -/* - Copyright (c) 2007-2010 iMatix Corporation - - This file is part of 0MQ. - - 0MQ is free software; you can redistribute it and/or modify it under - the terms of the Lesser GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - 0MQ is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - Lesser GNU General Public License for more details. - - You should have received a copy of the Lesser GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. -*/ - -#include <stdlib.h> -#include <string.h> - -#include "zmq_decoder.hpp" -#include "i_inout.hpp" -#include "wire.hpp" -#include "err.hpp" - -zmq::zmq_decoder_t::zmq_decoder_t (size_t bufsize_) : - decoder_t <zmq_decoder_t> (bufsize_), - destination (NULL) -{ - zmq_msg_init (&in_progress); - - // At the beginning, read one byte and go to one_byte_size_ready state. - next_step (tmpbuf, 1, &zmq_decoder_t::one_byte_size_ready); -} - -zmq::zmq_decoder_t::~zmq_decoder_t () -{ - zmq_msg_close (&in_progress); -} - -void zmq::zmq_decoder_t::set_inout (i_inout *destination_) -{ - destination = destination_; -} - -bool zmq::zmq_decoder_t::one_byte_size_ready () -{ - // First byte of size is read. If it is 0xff read 8-byte size. - // Otherwise allocate the buffer for message data and read the - // message data into it. - if (*tmpbuf == 0xff) - next_step (tmpbuf, 8, &zmq_decoder_t::eight_byte_size_ready); - else { - - // TODO: Handle over-sized message decently. - - // There has to be at least one byte (the flags) in the message). - zmq_assert (*tmpbuf > 0); - - // in_progress is initialised at this point so in theory we should - // close it before calling zmq_msg_init_size, however, it's a 0-byte - // message and thus we can treat it as uninitialised... - int rc = zmq_msg_init_size (&in_progress, *tmpbuf - 1); - errno_assert (rc == 0); - next_step (tmpbuf, 1, &zmq_decoder_t::flags_ready); - } - return true; -} - -bool zmq::zmq_decoder_t::eight_byte_size_ready () -{ - // 8-byte size is read. Allocate the buffer for message body and - // read the message data into it. - size_t size = (size_t) get_uint64 (tmpbuf); - - // TODO: Handle over-sized message decently. - - // There has to be at least one byte (the flags) in the message). - zmq_assert (size > 0); - - - // in_progress is initialised at this point so in theory we should - // close it before calling zmq_msg_init_size, however, it's a 0-byte - // message and thus we can treat it as uninitialised... - int rc = zmq_msg_init_size (&in_progress, size - 1); - errno_assert (rc == 0); - next_step (tmpbuf, 1, &zmq_decoder_t::flags_ready); - - return true; -} - -bool zmq::zmq_decoder_t::flags_ready () -{ - // Store the flags from the wire into the message structure. - in_progress.flags = tmpbuf [0]; - - next_step (zmq_msg_data (&in_progress), zmq_msg_size (&in_progress), - &zmq_decoder_t::message_ready); - - return true; -} - -bool zmq::zmq_decoder_t::message_ready () -{ - // Message is completely read. Push it further and start reading - // new message. (in_progress is a 0-byte message after this point.) - if (!destination || !destination->write (&in_progress)) - return false; - - next_step (tmpbuf, 1, &zmq_decoder_t::one_byte_size_ready); - return true; -} |