From 9b59478cf677144bef257ee65be627aab9de927d Mon Sep 17 00:00:00 2001
From: Brian Lopez <seniorlopez@gmail.com>
Date: Sun, 4 Apr 2010 23:31:32 -0700
Subject: [PATCH] allow access to file descriptor in C, EventMachine anyone? ;)

---
 ext/mysql2_ext.c           | 6 ++++++
 ext/mysql2_ext.h           | 1 +
 spec/mysql2/client_spec.rb | 9 +++++++++
 3 files changed, 16 insertions(+)

diff --git a/ext/mysql2_ext.c b/ext/mysql2_ext.c
index 43c5f86..450ecf0 100644
--- a/ext/mysql2_ext.c
+++ b/ext/mysql2_ext.c
@@ -166,6 +166,11 @@ static VALUE rb_mysql_client_server_info(VALUE self) {
   return version;
 }
 
+static VALUE rb_mysql_client_socket(VALUE self) {
+  MYSQL * client = GetMysql2Client(self, client);;
+  return INT2NUM(client->net.fd);
+}
+
 /* Mysql2::Result */
 static VALUE rb_mysql_result_to_obj(MYSQL_RES * r) {
   VALUE obj;
@@ -361,6 +366,7 @@ void Init_mysql2_ext() {
   rb_define_method(cMysql2Client, "escape", rb_mysql_client_escape, 1);
   rb_define_method(cMysql2Client, "info", rb_mysql_client_info, 0);
   rb_define_method(cMysql2Client, "server_info", rb_mysql_client_server_info, 0);
+  rb_define_method(cMysql2Client, "socket", rb_mysql_client_socket, 0);
 
   cMysql2Result = rb_define_class_under(mMysql2, "Result", rb_cObject);
   rb_define_method(cMysql2Result, "each", rb_mysql_result_each, -1);
diff --git a/ext/mysql2_ext.h b/ext/mysql2_ext.h
index 1dee73a..18460bc 100644
--- a/ext/mysql2_ext.h
+++ b/ext/mysql2_ext.h
@@ -24,6 +24,7 @@ static VALUE rb_mysql_client_query(VALUE self, VALUE query);
 static VALUE rb_mysql_client_escape(VALUE self, VALUE str);
 static VALUE rb_mysql_client_info(VALUE self);
 static VALUE rb_mysql_client_server_info(VALUE self);
+static VALUE rb_mysql_client_socket(VALUE self);
 void rb_mysql_client_free(void * client);
 
 /* Mysql2::Result */
diff --git a/spec/mysql2/client_spec.rb b/spec/mysql2/client_spec.rb
index 07b8949..4af7b27 100644
--- a/spec/mysql2/client_spec.rb
+++ b/spec/mysql2/client_spec.rb
@@ -48,4 +48,13 @@ describe Mysql2::Client do
     server_info.should have_key(:version)
     server_info[:version].class.should eql(String)
   end
+
+  it "should respond to #socket" do
+    @client.should respond_to :socket
+  end
+
+  it "#socket should return a Fixnum (file descriptor from C)" do
+    @client.socket.class.should eql(Fixnum)
+    @client.socket.should_not eql(0)
+  end
 end
\ No newline at end of file