mirror of
https://github.com/zeromq/libzmq.git
synced 2025-11-04 12:17:39 +01:00
295 lines
7.5 KiB
C++
295 lines
7.5 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 <assert.h>
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#include <errno.h>
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#include <string.h>
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#include <ruby.h>
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#include "../c/zmq.h"
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static void context_free (void *ctx)
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{
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if (ctx) {
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int rc = zmq_term (ctx);
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assert (rc == 0);
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}
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}
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static VALUE context_alloc (VALUE class_)
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{
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return rb_data_object_alloc (class_, NULL, 0, context_free);
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}
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static VALUE context_initialize (VALUE self_, VALUE app_threads_,
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VALUE io_threads_)
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{
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assert (!DATA_PTR (self_));
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void *ctx = zmq_init (NUM2INT (app_threads_), NUM2INT (io_threads_));
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if (!ctx) {
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rb_raise (rb_eRuntimeError, strerror (errno));
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return Qnil;
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}
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DATA_PTR (self_) = (void*) ctx;
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return self_;
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}
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static void socket_free (void *s)
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{
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if (s) {
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int rc = zmq_close (s);
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assert (rc == 0);
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}
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}
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static VALUE socket_alloc (VALUE class_)
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{
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return rb_data_object_alloc (class_, NULL, 0, socket_free);
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}
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static VALUE socket_initialize (VALUE self_, VALUE context_, VALUE type_)
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{
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assert (!DATA_PTR (self_));
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if (strcmp (rb_obj_classname (context_), "Context") != 0) {
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rb_raise (rb_eArgError, "expected Context object");
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return Qnil;
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}
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void *s = zmq_socket (DATA_PTR (context_), NUM2INT (type_));
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if (!s) {
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rb_raise (rb_eRuntimeError, strerror (errno));
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return Qnil;
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}
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DATA_PTR (self_) = (void*) s;
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return self_;
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}
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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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*/
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static VALUE socket_bind (VALUE self_, VALUE addr_)
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{
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assert (DATA_PTR (self_));
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int rc = zmq_bind (DATA_PTR (self_), rb_string_value_cstr (&addr_));
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if (rc != 0) {
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rb_raise (rb_eRuntimeError, strerror (errno));
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return Qnil;
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}
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return Qnil;
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}
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static VALUE socket_connect (VALUE self_, VALUE addr_)
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{
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assert (DATA_PTR (self_));
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int rc = zmq_connect (DATA_PTR (self_), rb_string_value_cstr (&addr_));
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if (rc != 0) {
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rb_raise (rb_eRuntimeError, strerror (errno));
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return Qnil;
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}
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return Qnil;
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}
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static VALUE socket_send (VALUE self_, VALUE msg_, VALUE flags_)
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{
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assert (DATA_PTR (self_));
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Check_Type (msg_, T_STRING);
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zmq_msg_t msg;
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int rc = zmq_msg_init_size (&msg, RSTRING_LEN (msg_));
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if (rc != 0) {
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rb_raise (rb_eRuntimeError, strerror (errno));
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return Qnil;
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}
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memcpy (zmq_msg_data (&msg), RSTRING_PTR (msg_), RSTRING_LEN (msg_));
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rc = zmq_send (DATA_PTR (self_), &msg, NUM2INT (flags_));
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if (rc != 0 && errno == EAGAIN) {
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rc = zmq_msg_close (&msg);
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assert (rc == 0);
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return Qfalse;
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}
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if (rc != 0) {
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rb_raise (rb_eRuntimeError, strerror (errno));
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rc = zmq_msg_close (&msg);
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assert (rc == 0);
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return Qnil;
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}
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rc = zmq_msg_close (&msg);
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assert (rc == 0);
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return Qtrue;
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}
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static VALUE socket_flush (VALUE self_)
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{
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assert (DATA_PTR (self_));
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int rc = zmq_flush (DATA_PTR (self_));
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if (rc != 0) {
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rb_raise (rb_eRuntimeError, strerror (errno));
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return Qnil;
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}
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return Qnil;
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}
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static VALUE socket_recv (VALUE self_, VALUE flags_)
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{
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assert (DATA_PTR (self_));
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zmq_msg_t msg;
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int rc = zmq_msg_init (&msg);
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assert (rc == 0);
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rc = zmq_recv (DATA_PTR (self_), &msg, NUM2INT (flags_));
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if (rc != 0 && errno == EAGAIN) {
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rc = zmq_msg_close (&msg);
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assert (rc == 0);
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return Qnil;
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}
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if (rc != 0) {
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rb_raise (rb_eRuntimeError, strerror (errno));
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rc = zmq_msg_close (&msg);
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assert (rc == 0);
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return Qnil;
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}
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VALUE message = rb_str_new ((char*) zmq_msg_data (&msg),
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zmq_msg_size (&msg));
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rc = zmq_msg_close (&msg);
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assert (rc == 0);
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return message;
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}
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extern "C" void Init_librbzmq ()
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{
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VALUE context_type = rb_define_class ("Context", rb_cObject);
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rb_define_alloc_func (context_type, context_alloc);
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rb_define_method (context_type, "initialize",
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(VALUE(*)(...)) context_initialize, 2);
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VALUE socket_type = rb_define_class ("Socket", rb_cObject);
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rb_define_alloc_func (socket_type, socket_alloc);
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rb_define_method (socket_type, "initialize",
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(VALUE(*)(...)) socket_initialize, 2);
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// rb_define_method (socket_type, "setsockopt",
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// (VALUE(*)(...)) socket_setsockopt, 2);
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rb_define_method (socket_type, "bind",
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(VALUE(*)(...)) socket_bind, 1);
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rb_define_method (socket_type, "connect",
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(VALUE(*)(...)) socket_connect, 1);
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rb_define_method (socket_type, "send",
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(VALUE(*)(...)) socket_send, 2);
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rb_define_method (socket_type, "flush",
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(VALUE(*)(...)) socket_flush, 0);
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rb_define_method (socket_type, "recv",
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(VALUE(*)(...)) socket_recv, 1);
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rb_define_global_const ("HWM", INT2NUM (ZMQ_HWM));
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rb_define_global_const ("LWM", INT2NUM (ZMQ_LWM));
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rb_define_global_const ("SWAP", INT2NUM (ZMQ_SWAP));
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rb_define_global_const ("AFFINITY", INT2NUM (ZMQ_AFFINITY));
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rb_define_global_const ("IDENTITY", INT2NUM (ZMQ_IDENTITY));
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rb_define_global_const ("NOBLOCK", INT2NUM (ZMQ_NOBLOCK));
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rb_define_global_const ("NOFLUSH", INT2NUM (ZMQ_NOFLUSH));
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rb_define_global_const ("P2P", INT2NUM (ZMQ_P2P));
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rb_define_global_const ("SUB", INT2NUM (ZMQ_SUB));
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rb_define_global_const ("PUB", INT2NUM (ZMQ_PUB));
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rb_define_global_const ("REQ", INT2NUM (ZMQ_REQ));
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rb_define_global_const ("REP", INT2NUM (ZMQ_REP));
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}
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