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Diffstat (limited to 'include/zmq.hpp')
-rw-r--r-- | include/zmq.hpp | 276 |
1 files changed, 0 insertions, 276 deletions
diff --git a/include/zmq.hpp b/include/zmq.hpp deleted file mode 100644 index ffdea7b..0000000 --- a/include/zmq.hpp +++ /dev/null @@ -1,276 +0,0 @@ -/* - Copyright (c) 2007-2009 FastMQ Inc. - - 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/>. -*/ - -#ifndef __ZMQ_HPP_INCLUDED__ -#define __ZMQ_HPP_INCLUDED__ - -#include "zmq.h" - -#include <assert.h> -#include <errno.h> -#include <string.h> -#include <exception> - -namespace zmq -{ - - typedef zmq_free_fn free_fn; - - enum message_type_t - { - message_data = 1 << 0, - message_gap = 1 << ZMQ_GAP, - message_delimiter = 1 << ZMQ_DELIMITER - }; - - // The class masquerades POSIX-style errno error as a C++ exception. - class error_t : public std::exception - { - public: - - error_t () : errnum (errno) {} - - virtual const char *what () const throw () - { - return strerror (errnum); - } - - private: - - int errnum; - }; - - // A message. Caution: Don't change the body of the message once you've - // copied it - the behaviour is undefined. Don't change the body of the - // received message either - other threads may be accessing it in parallel. - - class message_t : private zmq_msg_t - { - friend class socket_t; - - public: - - // Creates message size_ bytes long. - inline message_t (size_t size_ = 0) - { - int rc = zmq_msg_init_size (this, size_); - if (rc != 0) - throw error_t (); - } - - // Creates message from the supplied buffer. 0MQ takes care of - // deallocating the buffer once it is not needed. The deallocation - // function is supplied in ffn_ parameter. If ffn_ is NULL, no - // deallocation happens - this is useful for sending static buffers. - inline message_t (void *data_, size_t size_, - free_fn *ffn_) - { - int rc = zmq_msg_init_data (this, data_, size_, ffn_); - if (rc != 0) - throw error_t (); - } - - // Destroys the message. - inline ~message_t () - { - int rc = zmq_msg_close (this); - if (rc != 0) - throw error_t (); - } - - // Destroys old content of the message and allocates buffer for the - // new message body. Having this as a separate function allows user - // to reuse once-allocated message for multiple times. - inline void rebuild (size_t size_) - { - int rc = zmq_msg_close (this); - if (rc != 0) - throw error_t (); - rc = zmq_msg_init_size (this, size_); - if (rc != 0) - throw error_t (); - } - - // Same as above, however, the message is rebuilt from the supplied - // buffer. See appropriate constructor for discussion of buffer - // deallocation mechanism. - inline void rebuild (void *data_, size_t size_, free_fn *ffn_) - { - int rc = zmq_msg_close (this); - if (rc != 0) - throw error_t (); - rc = zmq_msg_init_data (this, data_, size_, ffn_); - if (rc != 0) - throw error_t (); - } - - // Moves the message content from one message to the another. If the - // destination message have contained data prior to the operation - // these get deallocated. The source message will contain 0 bytes - // of data after the operation. - inline void move_to (message_t *msg_) - { - int rc = zmq_msg_move (this, (zmq_msg_t*) msg_); - if (rc != 0) - throw error_t (); - } - - // Copies the message content from one message to the another. If the - // destination message have contained data prior to the operation - // these get deallocated. - inline void copy_to (message_t *msg_) - { - int rc = zmq_msg_copy (this, (zmq_msg_t*) msg_); - if (rc != 0) - throw error_t (); - } - - // Returns message type. - inline message_type_t type () - { - return (message_type_t) (1 << zmq_msg_type (this)); - } - - // Returns pointer to message's data buffer. - inline void *data () - { - return zmq_msg_data (this); - } - - // Returns the size of message data buffer. - inline size_t size () - { - return zmq_msg_size (this); - } - - private: - - // Disable implicit message copying, so that users won't use shared - // messages (less efficient) without being aware of the fact. - message_t (const message_t&); - void operator = (const message_t&); - }; - - class context_t - { - friend class socket_t; - - public: - - inline context_t (int app_threads_, int io_threads_) - { - ptr = zmq_init (app_threads_, io_threads_); - if (ptr == NULL) - throw error_t (); - } - - inline ~context_t () - { - int rc = zmq_term (ptr); - assert (rc == 0); - } - - private: - - void *ptr; - - // Disable copying. - context_t (const context_t&); - void operator = (const context_t&); - }; - - class socket_t - { - public: - - inline socket_t (context_t &context_, int type_ = 0) - { - ptr = zmq_socket (context_.ptr, type_); - if (ptr == NULL) - throw error_t (); - } - - inline ~socket_t () - { - int rc = zmq_close (ptr); - if (rc != 0) - throw error_t (); - } - - inline void setsockopt (int option_, const void *optval_, - size_t optvallen_) - { - int rc = zmq_setsockopt (ptr, option_, optval_, optvallen_); - if (rc != 0) - throw error_t (); - } - - inline void bind (const char *addr_) - { - int rc = zmq_bind (ptr, addr_); - if (rc != 0) - throw error_t (); - } - - inline void connect (const char *addr_) - { - int rc = zmq_connect (ptr, addr_); - if (rc != 0) - throw error_t (); - } - - inline bool send (message_t &msg_, int flags_ = 0) - { - int rc = zmq_send (ptr, &msg_, flags_); - if (rc == 0) - return true; - if (rc == -1 && errno == EAGAIN) - return false; - throw error_t (); - } - - inline void flush () - { - int rc = zmq_flush (ptr); - if (rc != 0) - throw error_t (); - } - - inline bool recv (message_t *msg_, int flags_ = 0) - { - int rc = zmq_recv (ptr, msg_, flags_); - if (rc == 0) - return true; - if (rc == -1 && errno == EAGAIN) - return false; - throw error_t (); - } - - private: - - void *ptr; - - // Disable copying. - socket_t (const socket_t&); - void operator = (const socket_t&); - }; - -} - -#endif |