mirror of
https://github.com/zeromq/libzmq.git
synced 2025-03-10 07:56:09 +00:00
461 lines
12 KiB
C++
461 lines
12 KiB
C++
/*
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Copyright (c) 2007-2009 FastMQ Inc.
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This file is part of 0MQ.
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0MQ is free software; you can redistribute it and/or modify it under
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the terms of the Lesser GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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0MQ is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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Lesser GNU General Public License for more details.
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You should have received a copy of the Lesser GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <zmq.h>
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#include <zmq/err.hpp>
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#include <ruby.h>
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// Class rb_zmq.
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static VALUE rb_zmq;
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// Structure to return received data.
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static VALUE rb_data;
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static void rb_free (void *p)
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{
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}
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static VALUE rb_alloc (VALUE self_)
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{
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VALUE obj;
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obj = Data_Wrap_Struct (self_, 0, rb_free, NULL);
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return obj;
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}
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static VALUE rb_msg_init (VALUE self_)
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{
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zmq_msg_t *msg;
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msg = new zmq_msg_t;
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VALUE obj;
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int rc = zmq_msg_init (msg);
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if (rc == -1) {
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assert (errno == ENOMEM);
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rb_raise(rb_eRuntimeError, "Out of memory");
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}
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obj = Data_Wrap_Struct (rb_zmq, 0, rb_free, msg);
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return obj;
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}
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static VALUE rb_msg_init_size (VALUE self_, VALUE size_)
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{
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zmq_msg_t *msg;
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msg = new zmq_msg_t;
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VALUE obj;
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// Forward the code to zmq library.
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int rc = zmq_msg_init_size (msg, NUM2INT (size_));
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if (rc == -1) {
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assert (errno == ENOMEM);
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rb_raise(rb_eRuntimeError, "Out of memory");
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}
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obj = Data_Wrap_Struct (rb_zmq, 0, rb_free, msg);
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return obj;
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}
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static VALUE rb_msg_init_data (VALUE self_, VALUE data_, VALUE size_)
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{
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// Get the message.
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zmq_msg_t *msg;
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VALUE obj;
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msg = new zmq_msg_t;
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// Forward the code to zmq library.
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int rc = zmq_msg_init_data (msg, StringValueCStr (data_),
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NUM2INT (size_), rb_free);
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assert (rc == 0);
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obj = Data_Wrap_Struct (rb_zmq, 0, rb_free, msg);
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return obj;
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}
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static VALUE rb_msg_close (VALUE self_, VALUE msg_)
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{
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// Get the message.
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zmq_msg_t* msg;
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Data_Get_Struct (msg_, zmq_msg_t, msg);
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// Forward the code to zmq library.
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int rc = zmq_close (msg);
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assert (rc == 0);
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return self_;
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}
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static VALUE rb_msg_move (VALUE self_, VALUE src_)
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{
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// Get the message.
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zmq_msg_t* src;
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Data_Get_Struct (src_, zmq_msg_t, src);
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zmq_msg_t *dest;
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dest = new zmq_msg_t;
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VALUE obj;
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// Forward the code to zmq library.
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int rc = zmq_msg_move (dest, src);
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assert (rc == 0);
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obj = Data_Wrap_Struct (rb_zmq, 0, rb_free, dest);
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return obj;
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}
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static VALUE rb_msg_copy (VALUE self_, VALUE src_)
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{
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// Get the message.
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zmq_msg_t* src;
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Data_Get_Struct (src_, zmq_msg_t, src);
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zmq_msg_t *dest;
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dest = new zmq_msg_t;
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VALUE obj;
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// Forward the code to zmq library.
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int rc = zmq_msg_copy (dest, src);
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assert (rc == 0);
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obj = Data_Wrap_Struct (rb_zmq, 0, rb_free, dest);
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return obj;
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}
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static VALUE rb_msg_data (VALUE self_, VALUE msg_)
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{
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// Get the message.
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zmq_msg_t* msg;
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Data_Get_Struct (msg_, zmq_msg_t, msg);
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const char* data;
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// Forward the code to zmq library.
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data = (const char*) zmq_msg_data (msg);
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return rb_str_new (data, zmq_msg_size (msg));
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}
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static VALUE rb_msg_size (VALUE self_, VALUE msg_)
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{
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// Get the message.
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zmq_msg_t* msg;
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Data_Get_Struct (msg_, zmq_msg_t, msg);
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// Forward the code to zmq library.
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return INT2NUM (zmq_msg_size (msg));
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}
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static VALUE rb_msg_type (VALUE self_, VALUE msg_)
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{
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// Get the message.
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zmq_msg_t* msg;
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Data_Get_Struct (msg_, zmq_msg_t, msg);
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// Forward the code to zmq library.
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return INT2NUM (zmq_msg_type (msg));
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}
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static VALUE rb_init (VALUE self_)
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{
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return self_;
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}
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static VALUE rb_context (VALUE self_, VALUE app_threads_, VALUE io_threads_)
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{
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void *context;
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VALUE obj;
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// Forward the code to zmq library.
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context = zmq_init (NUM2INT (app_threads_), NUM2INT (io_threads_));
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if (context == NULL) {
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assert (errno == EINVAL);
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rb_raise(rb_eRuntimeError, "Invalid argument");
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}
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obj = Data_Wrap_Struct (rb_zmq, 0, free, context);
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return self_;
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}
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static VALUE rb_term (VALUE self_, VALUE context_)
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{
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// Get the context.
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void* context;
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Data_Get_Struct (context_, void*, context);
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// Forward the code to zmq library.
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int rc = zmq_term ((void*) context);
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assert (rc == 0);
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return self_;
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}
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static VALUE rb_socket (VALUE self_, VALUE context_, VALUE type_)
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{
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// Get the context.
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void* context;
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Data_Get_Struct (context_, void*, context);
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void* socket = NULL;
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VALUE obj;
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// Forward the call to native 0MQ library.
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socket = zmq_socket(context, NUM2INT (type_));
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if (socket == NULL) {
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assert (errno == EMFILE || errno == EINVAL);
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if (errno == EMFILE)
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rb_raise(rb_eRuntimeError, "Too many threads");
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else
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rb_raise(rb_eRuntimeError, "Invalid argument");
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}
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obj = Data_Wrap_Struct(rb_zmq, 0, free, socket);
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return obj;
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}
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static VALUE rb_close (VALUE self_, VALUE socket_)
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{
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// Get the message.
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void* socket;
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Data_Get_Struct (socket_, void*, socket);
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// Forward the call to native 0MQ library.
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int rc = zmq_close (socket);
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assert (rc == 0);
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return self_;
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}
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static VALUE rb_setsockopt (VALUE self_, VALUE socket_, VALUE option_,
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VALUE optval_)
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{
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// Get the socket.
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void* socket;
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Data_Get_Struct (socket_, void*, socket);
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int rc = 0;
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if (TYPE (optval_) == T_STRING) {
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// Forward the code to native 0MQ library.
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rc = zmq_setsockopt (socket, NUM2INT (option_),
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(void *) StringValueCStr (optval_), RSTRING_LEN (optval_));
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}
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else if (TYPE (optval_) == T_FLOAT) {
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double optval = NUM2DBL (optval_);
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// Forward the code to native 0MQ library.
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rc = zmq_setsockopt (socket, NUM2INT (option_),
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(void*) &optval, 8);
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}
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else if (TYPE (optval_) == T_FIXNUM) {
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long optval = FIX2LONG (optval_);
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// Forward the code to native 0MQ library.
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rc = zmq_setsockopt (socket, NUM2INT (option_),
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(void *) &optval, 4);
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}
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else if (TYPE (optval_) == T_BIGNUM) {
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long optval = NUM2LONG (optval_);
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// Forward the code to native 0MQ library.
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rc = zmq_setsockopt (socket, NUM2INT (option_),
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(void *) &optval, 4);
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}
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else if (TYPE (optval_) == T_ARRAY) {
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// Forward the code to native 0MQ library.
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rc = zmq_setsockopt (socket, NUM2INT (option_),
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(void *) RARRAY_PTR (optval_), RARRAY_LEN (optval_));
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}
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else if (TYPE (optval_) == T_STRUCT) {
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// Forward the code to native 0MQ library.
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rc = zmq_setsockopt (socket, NUM2INT (option_),
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(void *) RSTRUCT_PTR (optval_), RSTRUCT_LEN (optval_));
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}
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else
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rb_raise(rb_eRuntimeError, "Unknown type");
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assert (rc == 0);
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return self_;
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}
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static VALUE rb_bind (VALUE self_, VALUE socket_, VALUE addr_)
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{
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// Get the socket.
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void* socket;
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Data_Get_Struct (socket_, void*, socket);
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// Forward the code to native 0MQ library.
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int rc = zmq_bind (socket, StringValueCStr (addr_));
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if (rc == -1) {
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assert (errno == EINVAL || errno == EADDRINUSE);
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if (errno == EINVAL)
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rb_raise(rb_eRuntimeError, "Invalid argument");
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else
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rb_raise(rb_eRuntimeError, "Address in use");
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}
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return self_;
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}
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static VALUE rb_connect (VALUE self_, VALUE socket_, VALUE addr_)
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{
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// Get the socket.
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void* socket;
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Data_Get_Struct (socket_, void*, socket);
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// Forward the code to native 0MQ library.
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int rc = zmq_connect (socket, StringValueCStr (addr_));
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if (rc == -1) {
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assert (errno == EINVAL || errno == EADDRINUSE);
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if (errno == EINVAL)
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rb_raise(rb_eRuntimeError, "Invalid argument");
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else
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rb_raise(rb_eRuntimeError, "Address in use");
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}
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return self_;
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}
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static VALUE rb_send (VALUE self_, VALUE socket_, VALUE msg_, VALUE flags_)
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{
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// Get the socket.
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void* socket;
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Data_Get_Struct (socket_, void*, socket);
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// Get the message.
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zmq_msg_t *msg;
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Data_Get_Struct (msg_, zmq_msg_t, msg);
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// Forward the code to native 0MQ library.
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int rc = zmq_send (socket, msg, NUM2INT (flags_));
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assert (rc == 0 || (rc == -1 && errno == EAGAIN));
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return INT2NUM (rc);
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}
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static VALUE rb_flush (VALUE self_, VALUE socket_)
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{
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// Get the socket.
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void* socket;
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Data_Get_Struct (socket_, void*, socket);
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// Forward the code to native 0MQ library.
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int rc = zmq_flush (socket);
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assert (rc == 0);
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return self_;
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}
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static VALUE rb_recv (VALUE self_, VALUE socket_, VALUE flags_)
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{
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// Get the socket.
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void* socket;
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Data_Get_Struct (socket_, void*, socket);
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// Get the message.
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zmq_msg_t* msg;
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msg = new zmq_msg_t;
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VALUE obj;
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// Forward the code to native 0MQ library.
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int rc = zmq_recv (socket, msg, NUM2INT (flags_));
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assert (rc == 0 || (rc == -1 && errno == EAGAIN));
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obj = Data_Wrap_Struct(rb_data, 0, rb_free, msg);
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return rb_struct_new (obj, rc, NULL);
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}
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extern "C"
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void Init_librbzmq() {
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// Define the rb_zmq class.
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rb_zmq = rb_define_class ("Zmq", rb_cObject);
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// Define allocation function for rb_zmq class.
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rb_define_alloc_func (rb_zmq, rb_alloc);
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// Parameters: <name_of_class> <name_of_method_aaccessible_from_ruby>
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// <name_of_method_in_the_class> <number_of_arguments>
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// number of arguments is alqays except for the 'VALUE self_' argument
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// (this pointer).
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rb_define_method (rb_zmq, "msg_init", (VALUE(*)(...)) rb_msg_init, 0);
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rb_define_method (rb_zmq, "msg_init_size", (VALUE(*)(...))
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rb_msg_init_size, 1);
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rb_define_method (rb_zmq, "msg_init_data", (VALUE(*)(...))
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rb_msg_init_data, 3);
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rb_define_method (rb_zmq, "msg_close", (VALUE(*)(...)) rb_msg_close, 1);
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rb_define_method (rb_zmq, "msg_move", (VALUE(*)(...)) rb_msg_move, 1);
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rb_define_method (rb_zmq, "msg_copy", (VALUE(*)(...)) rb_msg_copy, 1);
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rb_define_method (rb_zmq, "msg_data", (VALUE(*)(...)) rb_msg_data, 1);
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rb_define_method (rb_zmq, "msg_size", (VALUE(*)(...)) rb_msg_size, 1);
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rb_define_method (rb_zmq, "msg_type", (VALUE(*)(...)) rb_msg_type, 1);
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rb_define_method (rb_zmq, "initialize", (VALUE(*)(...)) rb_init, 0);
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rb_define_method (rb_zmq, "term", (VALUE(*)(...)) rb_term, 1);
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rb_define_method (rb_zmq, "free", (VALUE(*)(...)) rb_free, 0);
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rb_define_method (rb_zmq, "context", (VALUE(*)(...)) rb_context, 2);
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rb_define_method (rb_zmq, "socket", (VALUE(*)(...)) rb_socket, 2);
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rb_define_method (rb_zmq, "close", (VALUE(*)(...)) rb_close, 1);
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rb_define_method (rb_zmq, "setsockopt", (VALUE(*)(...)) rb_setsockopt, 3);
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rb_define_method (rb_zmq, "bind", (VALUE(*)(...)) rb_bind, 2);
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rb_define_method (rb_zmq, "connect", (VALUE(*)(...)) rb_connect, 2);
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rb_define_method (rb_zmq, "send", (VALUE(*)(...)) rb_send, 3);
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rb_define_method (rb_zmq, "flush", (VALUE(*)(...)) rb_flush, 1);
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rb_define_method (rb_zmq, "recv", (VALUE(*)(...)) rb_recv, 2);
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// Define structure to hold data that are returned from receive function.
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rb_data = rb_struct_define (NULL, "msg", "rc", NULL);
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rb_define_const (rb_zmq, "DATA", rb_data);
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// Define global constants.
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rb_define_global_const ("ZMQ_MAX_VSM_SIZE", INT2NUM (ZMQ_MAX_VSM_SIZE));
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rb_define_global_const ("ZMQ_GAP", INT2NUM (ZMQ_GAP));
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rb_define_global_const ("ZMQ_DELIMITER", INT2NUM (ZMQ_DELIMITER));
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rb_define_global_const ("ZMQ_VSM", INT2NUM (ZMQ_VSM));
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rb_define_global_const ("ZMQ_HWM", INT2NUM (ZMQ_HWM));
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rb_define_global_const ("ZMQ_SWAP", INT2NUM (ZMQ_SWAP));
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rb_define_global_const ("ZMQ_MASK", INT2NUM (ZMQ_MASK));
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rb_define_global_const ("ZMQ_AFFINITY", INT2NUM (ZMQ_AFFINITY));
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rb_define_global_const ("ZMQ_IDENTITY", INT2NUM (ZMQ_IDENTITY));
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rb_define_global_const ("ZMQ_NOBLOCK", INT2NUM (ZMQ_NOBLOCK));
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rb_define_global_const ("ZMQ_NOFLUSH", INT2NUM (ZMQ_NOFLUSH));
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rb_define_global_const ("ZMQ_P2P", INT2NUM (ZMQ_P2P));
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rb_define_global_const ("ZMQ_SUB", INT2NUM (ZMQ_SUB));
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rb_define_global_const ("ZMQ_PUB", INT2NUM (ZMQ_PUB));
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rb_define_global_const ("ZMQ_REQ", INT2NUM (ZMQ_REQ));
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rb_define_global_const ("ZMQ_REP", INT2NUM (ZMQ_REP));
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}
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