1 files changed, 460 insertions, 0 deletions
diff --git a/ruby/zmq.cpp b/ruby/zmq.cpp
new file mode 100644
index 0000000..7ab6143
--- /dev/null
+++ b/ruby/zmq.cpp
@@ -0,0 +1,460 @@
+/*
+    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/>.
+*/
+
+#include <zmq.h>
+#include <zmq/err.hpp>
+#include <ruby.h>
+
+//  Class rb_zmq.
+static VALUE rb_zmq;
+
+//  Structure to return received data.
+static VALUE rb_data;
+
+static void rb_free (void *p)
+{
+   	
+} 
+
+static VALUE rb_alloc (VALUE self_)
+{
+    VALUE obj;
+    obj = Data_Wrap_Struct (self_, 0, rb_free, NULL);
+	
+    return obj;
+}
+
+static VALUE rb_msg_init (VALUE self_)
+{
+	zmq_msg_t *msg;
+	msg = new zmq_msg_t;
+	VALUE obj;
+	
+	int rc = zmq_msg_init (msg);
+	if (rc == -1) {
+        assert (errno == ENOMEM);
+        rb_raise(rb_eRuntimeError, "Out of memory"); 
+    }	
+	
+	obj = Data_Wrap_Struct (rb_zmq, 0, rb_free, msg);
+	return obj;
+}
+
+static VALUE rb_msg_init_size (VALUE self_, VALUE size_)
+{
+	zmq_msg_t *msg;
+	msg = new zmq_msg_t;
+	VALUE obj;
+
+	//  Forward the code to zmq library.	
+	int rc = zmq_msg_init_size (msg, NUM2INT (size_));
+	if (rc == -1) {
+        assert (errno == ENOMEM);
+        rb_raise(rb_eRuntimeError, "Out of memory"); 
+    }	
+
+	obj = Data_Wrap_Struct (rb_zmq, 0, rb_free, msg);
+	return obj;
+}
+
+static VALUE rb_msg_init_data (VALUE self_, VALUE data_, VALUE size_)
+{
+	//  Get the message.
+	zmq_msg_t *msg;
+	VALUE obj;
+	msg = new zmq_msg_t;
+
+	//  Forward the code to zmq library.		
+	int rc = zmq_msg_init_data (msg, StringValueCStr (data_), 
+		NUM2INT (size_), rb_free);
+	assert (rc == 0);
+	
+	obj = Data_Wrap_Struct (rb_zmq, 0, rb_free, msg);
+	return obj;
+}
+
+static VALUE rb_msg_close (VALUE self_, VALUE msg_)
+{
+	//  Get the message.
+    zmq_msg_t* msg;
+    Data_Get_Struct (msg_, zmq_msg_t, msg);
+
+	//  Forward the code to zmq library.    
+	int rc = zmq_close (msg);
+	assert (rc == 0);
+	
+	return self_;
+}
+
+static VALUE rb_msg_move (VALUE self_, VALUE src_)
+{
+    //  Get the message.
+    zmq_msg_t* src;
+    Data_Get_Struct (src_, zmq_msg_t, src);
+	
+	zmq_msg_t *dest;
+	dest = new zmq_msg_t;
+	VALUE obj;
+
+	//  Forward the code to zmq library.	
+	int rc = zmq_msg_move (dest, src);
+	assert (rc == 0);
+	
+	obj = Data_Wrap_Struct (rb_zmq, 0, rb_free, dest);
+	return obj;
+}
+
+
+static VALUE rb_msg_copy (VALUE self_, VALUE src_)
+{
+    //  Get the message.
+    zmq_msg_t* src;
+    Data_Get_Struct (src_, zmq_msg_t, src);
+	
+	zmq_msg_t *dest;
+	dest = new zmq_msg_t;
+	VALUE obj;
+
+	//  Forward the code to zmq library.	
+	int rc = zmq_msg_copy (dest, src);
+	assert (rc == 0);
+	
+	obj = Data_Wrap_Struct (rb_zmq, 0, rb_free, dest);
+	return obj;
+}
+
+static VALUE rb_msg_data (VALUE self_, VALUE msg_)
+{
+    //  Get the message.
+    zmq_msg_t* msg;
+    Data_Get_Struct (msg_, zmq_msg_t, msg);
+
+	const char* data;
+
+	//  Forward the code to zmq library.
+	data = (const char*) zmq_msg_data (msg);
+	
+	return rb_str_new (data, zmq_msg_size (msg));
+}
+
+static VALUE rb_msg_size (VALUE self_, VALUE msg_)
+{
+    //  Get the message.
+    zmq_msg_t* msg;
+    Data_Get_Struct (msg_, zmq_msg_t, msg);
+    
+   	//  Forward the code to zmq library.
+	return INT2NUM (zmq_msg_size (msg));
+}
+
+static VALUE rb_msg_type (VALUE self_, VALUE msg_)
+{
+    //  Get the message.
+    zmq_msg_t* msg;
+    Data_Get_Struct (msg_, zmq_msg_t, msg);
+
+	//  Forward the code to zmq library.    
+	return INT2NUM (zmq_msg_type (msg));
+}
+
+static VALUE rb_init (VALUE self_)
+{
+	return self_;
+}
+
+static VALUE rb_context (VALUE self_, VALUE app_threads_, VALUE io_threads_)
+{
+	void *context;
+	VALUE obj;
+
+	//  Forward the code to zmq library.	
+	context = zmq_init (NUM2INT (app_threads_), NUM2INT (io_threads_));	
+	if (context == NULL) {
+        assert (errno == EINVAL);
+        rb_raise(rb_eRuntimeError, "Invalid argument"); 
+    }
+
+	obj = Data_Wrap_Struct (rb_zmq, 0, free, context);
+    return self_;
+}
+
+static VALUE rb_term (VALUE self_, VALUE context_)
+{
+	//  Get the context.
+    void* context;
+    Data_Get_Struct (context_, void*, context);
+
+	//  Forward the code to zmq library.    
+   	int rc = zmq_term ((void*) context);
+   	assert (rc == 0);
+   	
+    return self_;
+}
+
+static VALUE rb_socket (VALUE self_, VALUE context_, VALUE type_)
+{
+	//  Get the context.
+    void* context;
+    Data_Get_Struct (context_, void*, context);
+    
+    void* socket = NULL;
+    VALUE obj;
+
+    //  Forward the call to native 0MQ library.
+	socket = zmq_socket(context, NUM2INT (type_));
+	if (socket == NULL) {
+        assert (errno == EMFILE || errno == EINVAL);
+        if (errno == EMFILE)
+	        rb_raise(rb_eRuntimeError, "Too many threads"); 
+        else
+	        rb_raise(rb_eRuntimeError, "Invalid argument"); 
+    }
+	
+    obj = Data_Wrap_Struct(rb_zmq, 0, free, socket);
+    return obj;
+}
+
+static VALUE rb_close (VALUE self_, VALUE socket_)
+{
+    //  Get the message.
+    void* socket;
+    Data_Get_Struct (socket_, void*, socket);
+    
+    //  Forward the call to native 0MQ library.
+    int rc = zmq_close (socket);
+    assert (rc == 0);
+    return self_;
+}	
+
+static VALUE rb_setsockopt (VALUE self_, VALUE socket_, VALUE option_,
+    VALUE optval_)
+{
+	//  Get the socket.
+    void* socket;
+    Data_Get_Struct (socket_, void*, socket);
+    
+    int rc = 0;
+
+	if (TYPE (optval_) == T_STRING) {
+
+		//  Forward the code to native 0MQ library.
+		rc = zmq_setsockopt (socket, NUM2INT (option_), 
+			(void *) StringValueCStr (optval_), RSTRING_LEN (optval_));	
+	
+	}
+	else if (TYPE (optval_) == T_FLOAT) {
+
+		double optval = NUM2DBL (optval_);
+		
+		//  Forward the code to native 0MQ library.
+		rc = zmq_setsockopt (socket, NUM2INT (option_), 
+			(void*) &optval, 8);	
+	}
+	
+	else if (TYPE (optval_) == T_FIXNUM) {
+
+		long optval = FIX2LONG (optval_);
+		
+		//  Forward the code to native 0MQ library.
+		rc = zmq_setsockopt (socket, NUM2INT (option_), 
+			(void *) &optval, 4);	
+	
+	}
+	
+	else if (TYPE (optval_) == T_BIGNUM) {
+
+		long optval = NUM2LONG (optval_);
+		
+		//  Forward the code to native 0MQ library.
+		rc = zmq_setsockopt (socket, NUM2INT (option_), 
+			(void *) &optval, 4);	
+	
+	}
+	else if (TYPE (optval_) == T_ARRAY) {
+
+		//  Forward the code to native 0MQ library.
+		rc = zmq_setsockopt (socket, NUM2INT (option_), 
+			(void *) RARRAY_PTR (optval_), RARRAY_LEN (optval_));	
+	
+	}
+	
+	else if (TYPE (optval_) == T_STRUCT) {
+
+		//  Forward the code to native 0MQ library.
+		rc = zmq_setsockopt (socket, NUM2INT (option_), 
+			(void *) RSTRUCT_PTR (optval_), RSTRUCT_LEN (optval_));	
+	
+	}
+	else 
+		rb_raise(rb_eRuntimeError, "Unknown type");    			
+    
+    assert (rc == 0);
+    
+    return self_;
+}
+
+static VALUE rb_bind (VALUE self_, VALUE socket_, VALUE addr_)
+{
+	//  Get the socket.
+    void* socket;
+    Data_Get_Struct (socket_, void*, socket);
+    
+   	//  Forward the code to native 0MQ library.    
+    int rc = zmq_bind (socket, StringValueCStr (addr_));
+    if (rc == -1) {
+        assert (errno == EINVAL || errno == EADDRINUSE);
+        if (errno == EINVAL)
+            rb_raise(rb_eRuntimeError, "Invalid argument"); 
+        else
+            rb_raise(rb_eRuntimeError, "Address in use"); 
+    }
+    
+    return self_;
+}
+
+static VALUE rb_connect (VALUE self_, VALUE socket_, VALUE addr_)
+{
+	//  Get the socket.
+    void* socket;
+    Data_Get_Struct (socket_, void*, socket);
+
+   	//  Forward the code to native 0MQ library.
+	int rc = zmq_connect (socket, StringValueCStr (addr_));
+    if (rc == -1) {
+        assert (errno == EINVAL || errno == EADDRINUSE);
+        if (errno == EINVAL)
+            rb_raise(rb_eRuntimeError, "Invalid argument"); 
+        else
+             rb_raise(rb_eRuntimeError, "Address in use");
+    }
+    return self_;
+}
+
+static VALUE rb_send (VALUE self_, VALUE socket_, VALUE msg_, VALUE flags_)
+{
+	//  Get the socket.
+    void* socket;
+    Data_Get_Struct (socket_, void*, socket);
+    
+    //  Get the message.
+    zmq_msg_t *msg;
+    Data_Get_Struct (msg_, zmq_msg_t, msg);
+
+   	//  Forward the code to native 0MQ library.    
+    int rc = zmq_send (socket, msg, NUM2INT (flags_));
+    assert (rc == 0 || (rc == -1 && errno == EAGAIN));
+
+    return INT2NUM (rc);
+}
+
+static VALUE rb_flush (VALUE self_, VALUE socket_)
+{
+	//  Get the socket.
+    void* socket;
+    Data_Get_Struct (socket_, void*, socket);
+
+   	//  Forward the code to native 0MQ library.    
+    int rc = zmq_flush (socket);
+    assert (rc == 0);
+    
+    return self_;
+}
+
+static VALUE rb_recv (VALUE self_, VALUE socket_, VALUE flags_)
+{
+	//  Get the socket.
+    void* socket;
+    Data_Get_Struct (socket_, void*, socket);
+    
+    //  Get the message.
+    zmq_msg_t* msg;
+    msg = new zmq_msg_t;
+    VALUE obj;
+
+   	//  Forward the code to native 0MQ library.       
+	int rc = zmq_recv (socket, msg, NUM2INT (flags_));
+	assert (rc == 0 || (rc == -1 && errno == EAGAIN));
+
+	obj = Data_Wrap_Struct(rb_data, 0, rb_free, msg);
+	    
+    return rb_struct_new (obj, rc, NULL);
+}
+
+extern "C"
+void Init_librbzmq() {
+	
+	//  Define the rb_zmq class.
+    rb_zmq = rb_define_class ("Zmq", rb_cObject);
+	
+	//  Define allocation function for rb_zmq class.
+    rb_define_alloc_func (rb_zmq, rb_alloc);
+    
+    //  Parameters: <name_of_class> <name_of_method_aaccessible_from_ruby>
+    //  <name_of_method_in_the_class> <number_of_arguments> 
+    //  number of arguments is alqays except for the 'VALUE self_' argument 
+    //  (this pointer).
+    rb_define_method (rb_zmq, "msg_init", (VALUE(*)(...)) rb_msg_init, 0);
+    rb_define_method (rb_zmq, "msg_init_size", (VALUE(*)(...)) 
+    	rb_msg_init_size, 1);
+    rb_define_method (rb_zmq, "msg_init_data", (VALUE(*)(...)) 
+    	rb_msg_init_data, 3);
+    rb_define_method (rb_zmq, "msg_close", (VALUE(*)(...)) rb_msg_close, 1);
+    rb_define_method (rb_zmq, "msg_move", (VALUE(*)(...)) rb_msg_move, 1);
+    rb_define_method (rb_zmq, "msg_copy", (VALUE(*)(...)) rb_msg_copy, 1);
+    rb_define_method (rb_zmq, "msg_data", (VALUE(*)(...)) rb_msg_data, 1);
+    rb_define_method (rb_zmq, "msg_size", (VALUE(*)(...)) rb_msg_size, 1);
+    rb_define_method (rb_zmq, "msg_type", (VALUE(*)(...)) rb_msg_type, 1);
+  
+    rb_define_method (rb_zmq, "initialize", (VALUE(*)(...)) rb_init, 0);
+	rb_define_method (rb_zmq, "term", (VALUE(*)(...)) rb_term, 1);  
+    rb_define_method (rb_zmq, "free", (VALUE(*)(...)) rb_free, 0); 
+	
+	rb_define_method (rb_zmq, "context", (VALUE(*)(...)) rb_context, 2);
+    rb_define_method (rb_zmq, "socket", (VALUE(*)(...)) rb_socket, 2);
+    rb_define_method (rb_zmq, "close", (VALUE(*)(...)) rb_close, 1);
+    rb_define_method (rb_zmq, "setsockopt", (VALUE(*)(...)) rb_setsockopt, 3);    
+    rb_define_method (rb_zmq, "bind", (VALUE(*)(...)) rb_bind, 2);
+    rb_define_method (rb_zmq, "connect", (VALUE(*)(...)) rb_connect, 2);
+    rb_define_method (rb_zmq, "send", (VALUE(*)(...)) rb_send, 3);
+    rb_define_method (rb_zmq, "flush", (VALUE(*)(...)) rb_flush, 1);
+    rb_define_method (rb_zmq, "recv", (VALUE(*)(...)) rb_recv, 2);
+  
+	//  Define structure to hold data that are returned from receive function.
+    rb_data = rb_struct_define (NULL, "msg", "rc", NULL);
+    rb_define_const (rb_zmq, "DATA", rb_data);
+
+	//  Define global constants.
+    rb_define_global_const ("ZMQ_MAX_VSM_SIZE", INT2NUM (ZMQ_MAX_VSM_SIZE));
+    rb_define_global_const ("ZMQ_GAP", INT2NUM (ZMQ_GAP));
+    rb_define_global_const ("ZMQ_DELIMITER", INT2NUM (ZMQ_DELIMITER));
+    rb_define_global_const ("ZMQ_VSM", INT2NUM (ZMQ_VSM));
+    rb_define_global_const ("ZMQ_HWM", INT2NUM (ZMQ_HWM));
+    rb_define_global_const ("ZMQ_SWAP", INT2NUM (ZMQ_SWAP));
+    rb_define_global_const ("ZMQ_MASK", INT2NUM (ZMQ_MASK));
+    rb_define_global_const ("ZMQ_AFFINITY", INT2NUM (ZMQ_AFFINITY));
+    rb_define_global_const ("ZMQ_IDENTITY", INT2NUM (ZMQ_IDENTITY));
+    rb_define_global_const ("ZMQ_NOBLOCK", INT2NUM (ZMQ_NOBLOCK));
+    rb_define_global_const ("ZMQ_NOFLUSH", INT2NUM (ZMQ_NOFLUSH));
+    rb_define_global_const ("ZMQ_P2P", INT2NUM (ZMQ_P2P));
+    rb_define_global_const ("ZMQ_SUB", INT2NUM (ZMQ_SUB));
+    rb_define_global_const ("ZMQ_PUB", INT2NUM (ZMQ_PUB));
+    rb_define_global_const ("ZMQ_REQ", INT2NUM (ZMQ_REQ));
+    rb_define_global_const ("ZMQ_REP", INT2NUM (ZMQ_REP));
+
+}