diff --git a/.npmignore b/.npmignore
index 0a4bf0e..6a0f3c7 100644
--- a/.npmignore
+++ b/.npmignore
@@ -2,3 +2,5 @@
 raw/
 build/
 build/.*
+src/*_infos.h
+src/*_options.h
diff --git a/README.md b/README.md
index ee27a00..b25ca05 100644
--- a/README.md
+++ b/README.md
@@ -9,22 +9,20 @@ Quick Start
 * quick start
 
         curl = require('node-curl');
-        curl('www.google.com', function(err, res) {
-          console.info(res.status);
+        curl('www.google.com', function(err) {
+          console.info(this.status);
           console.info('-----');
-          console.info(res.body);
+          console.info(this.body);
           console.info('-----');
-          console.info(res.info('SIZE_DOWNLOAD'));
-          res.close();
+          console.info(this.info('SIZE_DOWNLOAD'));
         });
 
 
 * with options
 
         curl = require('node-curl')
-        curl('www.google.com', {VERBOSE: 1, RAW: 1}, function(err, res) {
-          console.info(res);
-          res.close();
+        curl('www.google.com', {VERBOSE: 1, RAW: 1}, function(err) {
+          console.info(this);
         });
 
 Usage
@@ -33,9 +31,10 @@ Usage
 * curl
 
         curl(url, [options = {}], callback)
-        callback includes 2 parameters (error, result)
+        callback includes 1 parameters (error)
+        result is stored in curl
 
-* result in callback
+* Retrieve Data from curl
 
         members:
           status     - Http Response code
@@ -44,23 +43,34 @@ Usage
         methods:
           info(name) - Get information of result, see 'info' section
 
+* Curl Control
+        methods:
+            void reset() 
+                - reset curl and set options to default options
+
+            void setDefaultOptions(options, reset = true) 
+                - set default options
+
+            curl create(defaultOptions)
+                - create a new curl with default options
+
 Options
 -------
-* Any Curl Easy Options
+* Any cURL Easy Options
 
         eg: CURLOPT_VERBOSE will be VERBOSE, CURLOPT_HEADER will be HEADER
 
-        Full list at http://curl.haxx.se/libcurl/c/curl_easy_setopt.html 
+        Full list at http://curl.haxx.se/libcurl/c/curl_easy_setopt.html
 
 * node-curl Extra Options
 
-        RAW - Returns Buffer instead of String in result.body
+        RAW   - Returns Buffer instead of String in result.body
 
 * About slist parameters
 
         node-curl support slist which map to Javascript Array
 
-        eg: 
+        eg:
             HTTP_HEADER: ['FOO', 'BAR']
             HTTP_HEADER: 'FOO'
 
@@ -68,7 +78,7 @@ Options
 
 Infos
 -----
-* Any Curl Info options
+* Any cURL Info options
 
         eg: CURLINFO_EFFECTIVE_URL will be EFFETCTIVE_URL
 
@@ -80,9 +90,6 @@ Infos
           slist will be returns in Array
           eg: CURLINFO_COOKIELIST
 
-
 Hints
 -----
-close the result to release resource of curl immediately.
 
-or the resource will not release until gc performed.
diff --git a/examples/pressure.js b/examples/pressure.js
index 25a190b..23b3377 100644
--- a/examples/pressure.js
+++ b/examples/pressure.js
@@ -1,30 +1,39 @@
-// Generated by ToffeeScript 1.2.0-0
+// Generated by ToffeeScript 1.3.3
 (function() {
-  var assert, curl, i, j, next, once, _i;
+  var Curl, assert, i, j, next, _fn, _i;
 
-  curl = require('../index');
+  Curl = require('../index');
 
   assert = require('assert');
 
   j = 0;
 
   (next = function() {
-    console.info("curl instances: ", curl.get_count());
+    console.info("curl instances: ", Curl.get_count());
     return setTimeout(next, 1000);
   })();
 
-  for (i = _i = 1; _i <= 100; i = ++_i) {
-    (once = function() {
+  _fn = function() {
+    var curl, once;
+    curl = Curl.create();
+    return (once = function() {
       var _this = this;
       return curl('localhost/test.html', function(_$$_err, _$$_res) {
         var err, res;
         err = _$$_err;
         res = _$$_res;
         assert.equal(res.body.length, 1468);
-        if (++j % 100 === 0) console.info(j);
-        if (j < 20000) return once();
+        if (++j % 100 === 0) {
+          console.info(j);
+        }
+        if (j < 5000) {
+          return once();
+        }
       });
     })();
+  };
+  for (i = _i = 1; _i <= 100; i = ++_i) {
+    _fn();
   }
 
 }).call(this);
diff --git a/examples/pressure.toffee b/examples/pressure.toffee
index f9a7cd1..db466a8 100644
--- a/examples/pressure.toffee
+++ b/examples/pressure.toffee
@@ -1,16 +1,18 @@
-curl   = require '../index'
+Curl   = require '../index'
 assert = require 'assert'
 j = 0;
 do next = ->
-  console.info "curl instances: ", curl.get_count()
+  console.info "curl instances: ", Curl.get_count()
   setTimeout next, 1000
 
 for i in [1..100]
-  do once = ->
-    err, res = curl! 'localhost/test.html'
-    assert.equal res.body.length, 1468
-    if ++j % 100 == 0
-      console.info j
-    if j < 20000
-      once()
-    # res.close()
+  do ->
+    curl = Curl.create()
+    do once = ->
+      err, res = curl! 'localhost/test.html'
+      assert.equal res.body.length, 1468
+      if ++j % 100 == 0
+        console.info j
+      if j < 5000
+        once()
+      # res.close()
diff --git a/examples/test.js b/examples/test.js
index 932e81e..146df0e 100644
--- a/examples/test.js
+++ b/examples/test.js
@@ -1,6 +1,6 @@
-// Generated by ToffeeScript 1.2.0-0
+// Generated by ToffeeScript 1.3.3
 (function() {
-  var curl, fs, p, url, util,
+  var cookieFile, curl, fs, options, p, util,
     _this = this;
 
   curl = require('../index');
@@ -11,29 +11,42 @@
 
   p = console.info;
 
-  url = 'www.google.com';
+  cookieFile = 'node-curl-cookie.txt';
 
-  curl(url, {
-    HTTPHEADER: 'BAR',
+  options = {
     VERBOSE: 1,
-    COOKIEFILE: 'node-curl-cookie.txt'
-  }, function(_$$_err, _$$_res) {
-    var err, res;
+    COOKIEFILE: cookieFile,
+    COOKIEJAR: cookieFile,
+    ACCEPT_ENCODING: 'gzip',
+    RAW: 1
+  };
+
+  curl.debug = 1;
+
+  curl.setDefaultOptions(options);
+
+  curl('www.google.com', function(_$$_err) {
+    var err;
     err = _$$_err;
-    res = _$$_res;
-    p("\x1b[33m" + util.inspect(res.info('COOKIELIST')) + "\x1b[0m");
-    url = 'www.yahoo.com';
-    return curl(url, {
-      HTTPHEADER: ['foo', 'bar'],
-      VERBOSE: 1,
-      COOKIEFILE: 'node-curl-cookie.txt',
-      RAW: 1
-    }, function(_$$_err, _$$_res) {
+    p("\x1b[33m" + util.inspect(curl.info('COOKIELIST')) + "\x1b[0m");
+    curl.reset();
+    return curl('www.yahoo.com', function(_$$_err) {
+      var stream;
       err = _$$_err;
-      res = _$$_res;
-      p("\x1b[33m" + util.inspect(res.info('COOKIELIST')) + "\x1b[0m");
-      p(res.body);
-      return fs.unlink('node-curl-cookie.txt');
+      p("\x1b[33m" + util.inspect(curl.info('COOKIELIST')) + "\x1b[0m");
+      p("body length " + curl.body.length);
+      p("\x1b[33mText in " + cookieFile + "\x1b[0m");
+      p("----");
+      stream = fs.createReadStream(cookieFile);
+      stream.pipe(process.stdout);
+      return stream.on('end', function() {
+        var _this = this;
+        p("----");
+        p("deleting " + cookieFile);
+        return fs.unlink(cookieFile, function() {
+          return p("done.");
+        });
+      });
     });
   });
 
diff --git a/examples/test.toffee b/examples/test.toffee
index ee7d1ef..366dfcc 100644
--- a/examples/test.toffee
+++ b/examples/test.toffee
@@ -3,20 +3,28 @@ fs   = require 'fs'
 util = require 'util'
 p = console.info
 
-url = 'www.google.com'
-err, res = curl! url, 
-  HTTPHEADER: 'BAR'
+cookieFile = 'node-curl-cookie.txt'
+options = {
   VERBOSE: 1
-  COOKIEFILE: 'node-curl-cookie.txt'
-
-p "\x1b[33m" + util.inspect(res.info('COOKIELIST')) + "\x1b[0m"
-url = 'www.yahoo.com'
-err, res = curl! url, 
-  HTTPHEADER: ['foo', 'bar']
-  VERBOSE: 1
-  COOKIEFILE: 'node-curl-cookie.txt'
+  COOKIEFILE: cookieFile
+  COOKIEJAR: cookieFile
+  ACCEPT_ENCODING: 'gzip'
   RAW: 1
-
-p "\x1b[33m" + util.inspect(res.info('COOKIELIST')) + "\x1b[0m"
-p res.body
-fs.unlink 'node-curl-cookie.txt'
+}
+curl.debug = 1
+curl.setDefaultOptions options
+err = curl! 'www.google.com'
+p "\x1b[33m" + util.inspect(curl.info('COOKIELIST')) + "\x1b[0m"
+curl.reset()
+err = curl! 'www.yahoo.com'
+p "\x1b[33m" + util.inspect(curl.info('COOKIELIST')) + "\x1b[0m"
+p "body length #{curl.body.length}"
+p "\x1b[33mText in #{cookieFile}\x1b[0m"
+p "----"
+stream = fs.createReadStream(cookieFile)
+stream.pipe(process.stdout)
+stream.on 'end', ->
+  p "----"
+  p "deleting #{cookieFile}"
+  fs.unlink! cookieFile
+  p "done."
diff --git a/lib/CurlBuilder.js b/lib/CurlBuilder.js
new file mode 100644
index 0000000..8a037d5
--- /dev/null
+++ b/lib/CurlBuilder.js
@@ -0,0 +1,193 @@
+// Generated by ToffeeScript 1.3.3
+(function() {
+  var Curl, CurlBuilder,
+    __hasProp = {}.hasOwnProperty,
+    __slice = [].slice;
+
+  try {
+    Curl = require(__dirname + '/../build/Release/node-curl').Curl;
+  } catch (e) {
+    Curl = require(__dirname + '/../build/default/node-curl').Curl;
+  }
+
+  CurlBuilder = (function() {
+
+    function CurlBuilder() {}
+
+    CurlBuilder.curls = {};
+
+    CurlBuilder.id = 0;
+
+    CurlBuilder.close_all = function() {
+      var curl, id, _ref;
+      _ref = CurlBuilder.curls;
+      for (id in _ref) {
+        if (!__hasProp.call(_ref, id)) continue;
+        curl = _ref[id];
+        curl.end();
+        delete CurlBuilder.curls[id];
+      }
+      return CurlBuilder;
+    };
+
+    CurlBuilder.create = function(defaultOptions) {
+      var curl;
+      curl = function() {
+        return curl.perform.apply(curl, arguments);
+      };
+      curl.perform = function() {
+        var args, c, cb, length, options, url;
+        args = 1 <= arguments.length ? __slice.call(arguments, 0) : [];
+        if (this.running) {
+          throw new Error('the cURL session is busy, use CurlBuilder.create to create another cURL Session');
+        }
+        if (!this.curl_) {
+          throw new Error('the cURL is closed.');
+        }
+        this.running = true;
+        cb = args.pop();
+        url = args[0], options = args[1];
+        if (options == null) {
+          options = {};
+        }
+        c = this.curl_;
+        options['URL'] = url;
+        c.chunks = [];
+        length = 0;
+        this.setOptions(options);
+        c.on_write = function(chunk) {
+          curl.log("receive " + chunk.length + " bytes");
+          c.chunks.push(chunk);
+          return length += chunk.length;
+        };
+        c.on_end = function() {
+          var chunk, data, position, _i, _len, _ref,
+            _this = this;
+          curl.log("receive succeeded.");
+          curl.running = false;
+          data = new Buffer(length);
+          position = 0;
+          _ref = c.chunks;
+          for (_i = 0, _len = _ref.length; _i < _len; _i++) {
+            chunk = _ref[_i];
+            chunk.copy(data, position);
+            position += chunk.length;
+          }
+          c.chunks = [];
+          if (c.options.RAW) {
+            curl.body = data;
+          } else {
+            curl.body = data.toString();
+          }
+          curl.status = curl.code = c.getinfo('RESPONSE_CODE');
+          return process.nextTick(function() {
+            return cb.call(curl, null, curl);
+          });
+        };
+        c.on_error = function(err) {
+          var _this = this;
+          curl.log("receive failed: " + err.message);
+          curl.running = false;
+          return process.nextTick(function() {
+            return cb.call(curl, err, null);
+          });
+        };
+        this.log('perform');
+        return c.perform();
+      };
+      curl.setDefaultOptions = function(options, reset) {
+        if (options == null) {
+          options = {};
+        }
+        if (reset == null) {
+          reset = true;
+        }
+        defaultOptions = options;
+        if (reset) {
+          this.log('Set default options and reset cURL');
+          return this.reset();
+        }
+      };
+      curl.log = function(text) {
+        if (this.debug) {
+          return console.info(("[cURL " + this.id + "] ") + text);
+        }
+      };
+      curl.setOptions = function(options) {
+        var k, v;
+        if (options == null) {
+          options = {};
+        }
+        for (k in options) {
+          if (!__hasProp.call(options, k)) continue;
+          v = options[k];
+          this.log("Set option '" + k + "' to '" + v + "'");
+          this.curl_.setopt(k, v);
+        }
+        return this;
+      };
+      curl.setopts = function(options) {
+        if (options == null) {
+          options = {};
+        }
+        return this.setOptions(options);
+      };
+      curl.info = function(info) {
+        if (this.curl_ == null) {
+          throw new Error('curl is closed');
+        }
+        return this.curl_.getinfo(info);
+      };
+      curl.end = function() {
+        if (this.curl_ != null) {
+          this.curl_.close();
+        }
+        this.curl_ = null;
+        this.body = null;
+        delete CurlBuilder.curls[this.id];
+        return this.log("closed.");
+      };
+      curl.close = function() {
+        return this.end();
+      };
+      curl.open = function() {
+        if (curl.id == null) {
+          curl.id = ++CurlBuilder.id;
+        }
+        this.log("opening.");
+        this.curl_ = new Curl();
+        this.curl_.options = {};
+        this.setOptions(defaultOptions);
+        CurlBuilder.curls[curl.id] = curl;
+        return this.log("opened.");
+      };
+      curl.reset = function() {
+        this.log('reset');
+        if (this.curl_) {
+          this.end();
+        }
+        return this.open();
+      };
+      curl.Curl = Curl;
+      curl.Builder = CurlBuilder;
+      curl.create = function(defaultOptions) {
+        return CurlBuilder.create(defaultOptions);
+      };
+      curl.get_count = function() {
+        return Curl.get_count();
+      };
+      curl.open();
+      return curl;
+    };
+
+    return CurlBuilder;
+
+  }).call(this);
+
+  process.on('exit', function() {
+    return CurlBuilder.close_all();
+  });
+
+  module.exports = CurlBuilder;
+
+}).call(this);
diff --git a/lib/CurlBuilder.toffee b/lib/CurlBuilder.toffee
new file mode 100644
index 0000000..b6267a5
--- /dev/null
+++ b/lib/CurlBuilder.toffee
@@ -0,0 +1,136 @@
+try
+  {Curl} = require __dirname + '/../build/Release/node-curl'
+catch e
+  {Curl} = require __dirname + '/../build/default/node-curl'
+
+class CurlBuilder
+  @curls: {}
+  @id: 0
+  @close_all: =>
+    for own id, curl of @curls
+      curl.end()
+      delete @curls[id]
+    @
+
+  @create: (defaultOptions) =>
+    curl = ->
+      curl.perform.apply curl, arguments
+
+    curl.perform = (args...) ->
+      if @running
+        throw new Error 'the cURL session is busy, use CurlBuilder.create to create another cURL Session'
+
+      if !@curl_
+        throw new Error 'the cURL is closed.'
+
+      @running = true
+      cb = args.pop()
+      [url, options] = args
+      options ?= {}
+
+      c = @curl_
+      options['URL'] = url
+      c.chunks = []
+      length = 0
+
+      @setOptions options
+
+      c.on_write = (chunk) ->
+        curl.log "receive #{chunk.length} bytes"
+        c.chunks.push chunk
+        length += chunk.length
+
+      c.on_end = ->
+        curl.log "receive succeeded."
+        curl.running = false
+        data = new Buffer(length)
+        position = 0
+        for chunk in c.chunks
+          chunk.copy data, position
+          position += chunk.length
+        c.chunks = []
+
+        if c.options.RAW
+          curl.body = data
+        else
+          curl.body = data.toString()
+        curl.status = curl.code = c.getinfo('RESPONSE_CODE')
+
+        # if curl returns to fast, avoid cb recursive call
+        process.nextTick!
+        cb.call curl, null, curl
+
+      c.on_error = (err)->
+        curl.log "receive failed: #{err.message}"
+        curl.running = false
+        process.nextTick!
+        cb.call curl, err, null
+
+      @log 'perform'
+      c.perform()
+
+
+
+    curl.setDefaultOptions = (options = {}, reset = true) ->
+      defaultOptions = options
+      if reset
+        @log 'Set default options and reset cURL'
+        @reset()
+
+    curl.log = (text) ->
+      if @debug
+        console.info "[cURL #{@id}] " + text
+    curl.setOptions = (options = {}) ->
+      for own k, v of options
+        @log "Set option '#{k}' to '#{v}'"
+        @curl_.setopt k, v
+      @
+
+    curl.setopts = (options = {}) ->
+      @setOptions options
+
+    curl.info = (info)->
+      unless @curl_?
+        throw new Error('curl is closed')
+      @curl_.getinfo(info)
+
+    curl.end = ->
+      @curl_.close() if @curl_?
+      @curl_ = null
+      @body  = null
+      delete CurlBuilder.curls[@id]
+      @log "closed."
+
+    curl.close = ->
+      @end()
+
+    curl.open = ->
+      unless curl.id?
+        curl.id = ++CurlBuilder.id
+      @log "opening."
+      @curl_ = new Curl()
+      @curl_.options = {}
+      @setOptions defaultOptions
+      CurlBuilder.curls[curl.id] = curl
+      @log "opened."
+
+    curl.reset = ->
+      @log 'reset'
+      if @curl_
+        @end()
+      @open()
+
+    curl.Curl = Curl
+    curl.Builder = CurlBuilder
+    curl.create = (defaultOptions) ->
+      CurlBuilder.create(defaultOptions)
+    curl.get_count = ->
+      Curl.get_count()
+
+    curl.open()
+    curl
+
+process.on 'exit', ->
+  CurlBuilder.close_all()
+
+module.exports = CurlBuilder
diff --git a/lib/curl.js b/lib/curl.js
index d92125d..3573183 100644
--- a/lib/curl.js
+++ b/lib/curl.js
@@ -1,8 +1,6 @@
-// Generated by ToffeeScript 1.2.0-0
+// Generated by ToffeeScript 1.3.3
 (function() {
-  var Curl, curl, curl_id, curls,
-    __slice = [].slice,
-    __hasProp = {}.hasOwnProperty;
+  var Curl, CurlBuilder, curl;
 
   try {
     Curl = require(__dirname + '/../build/Release/node-curl').Curl;
@@ -10,6 +8,8 @@
     Curl = require(__dirname + '/../build/default/node-curl').Curl;
   }
 
+  CurlBuilder = require(__dirname + '/CurlBuilder');
+
   Curl.prototype.setopt_user_ = function(option_id, value) {
     return this.options[option_id] = value;
   };
@@ -46,18 +46,20 @@
     }
   };
 
+  Curl.user_options = {
+    RAW: 'RAW'
+  };
+
   Curl.prototype.perform = function() {
     this.perform_();
     return Curl.process();
   };
 
-  Curl.user_options = {
-    RAW: 'RAW'
-  };
-
   Curl.process = function() {
     var once;
-    if (Curl.in_process) return;
+    if (Curl.in_process) {
+      return;
+    }
     return (once = function() {
       var num;
       num = Curl.process_();
@@ -70,85 +72,7 @@
     })();
   };
 
-  curl_id = 0;
-
-  curls = {};
-
-  curl = function() {
-    var args, c, cb, k, length, options, url, v;
-    args = 1 <= arguments.length ? __slice.call(arguments, 0) : [];
-    cb = args.pop();
-    url = args[0], options = args[1];
-    if (options == null) options = {};
-    c = new Curl();
-    c.options = {};
-    c.id = ++curl_id;
-    curls[c.id] = c;
-    c.setopt('FOLLOWLOCATION', 1);
-    c.setopt('ACCEPT_ENCODING', 'gzip');
-    c.chunks = [];
-    length = 0;
-    for (k in options) {
-      if (!__hasProp.call(options, k)) continue;
-      v = options[k];
-      c.setopt(k, v);
-    }
-    c.on_write = function(chunk) {
-      c.chunks.push(chunk);
-      return length += chunk.length;
-    };
-    c.on_end = function() {
-      var chunk, data, position, res, _i, _len, _ref,
-        _this = this;
-      data = new Buffer(length);
-      position = 0;
-      _ref = c.chunks;
-      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
-        chunk = _ref[_i];
-        chunk.copy(data, position);
-        position += chunk.length;
-      }
-      c.chunks = [];
-      res = {};
-      res.curl_ = c;
-      delete curls[c.id];
-      if (c.options.RAW) {
-        res.body = data;
-      } else {
-        res.body = data.toString();
-      }
-      res.status = res.code = c.getinfo('RESPONSE_CODE');
-      res.info = function(info) {
-        if (this.curl_ == null) throw new Error('curl is closed');
-        return this.curl_.getinfo(info);
-      };
-      res.close = function() {
-        if (this.curl_ != null) this.curl_.close();
-        this.curl_ = null;
-        return this.body = null;
-      };
-      return process.nextTick(function() {
-        return cb(null, res);
-      });
-    };
-    c.on_error = function(err) {
-      var _this = this;
-      curls[c.id].close();
-      delete curls[c.id];
-      return process.nextTick(function() {
-        return cb(err, null);
-      });
-    };
-    c.setopt('URL', url);
-    c.perform();
-    return c;
-  };
-
-  curl.Curl = Curl;
-
-  curl.get_count = function() {
-    return Curl.get_count();
-  };
+  curl = CurlBuilder.create();
 
   module.exports = curl;
 
diff --git a/lib/curl.toffee b/lib/curl.toffee
index 782863f..b109289 100644
--- a/lib/curl.toffee
+++ b/lib/curl.toffee
@@ -3,6 +3,8 @@ try
 catch e
   {Curl} = require __dirname + '/../build/default/node-curl'
 
+CurlBuilder = require __dirname + '/CurlBuilder'
+
 Curl::setopt_user_ = (option_id, value) ->
   @options[option_id] = value
 
@@ -35,13 +37,13 @@ Curl::getinfo = (oinfo) ->
   else
     throw new Error("unsupported info #{oinfo}")
 
+Curl.user_options =
+  RAW: 'RAW'
+
 Curl::perform = ->
   @perform_()
   Curl.process()
 
-Curl.user_options =
-  RAW: 'RAW'
-
 Curl.process = ->
   if Curl.in_process
     return
@@ -53,77 +55,5 @@ Curl.process = ->
     else
       Curl.in_process = false
 
-# url, [options], cb
-curl_id = 0
-curls = {}
-curl = (args...) ->
-  cb = args.pop()
-  [url, options] = args
-  options ?= {}
-
-  c = new Curl()
-  c.options = {}
-  c.id = ++curl_id
-  # after the scope c will not valid any more, so add to curls to keep c alive
-  curls[c.id] = c
-
-  c.setopt 'FOLLOWLOCATION', 1
-  c.setopt 'ACCEPT_ENCODING', 'gzip'
-  c.chunks = []
-  length = 0
-
-  for own k, v of options
-    c.setopt k, v
-
-  c.on_write = (chunk) ->
-    c.chunks.push chunk
-    length += chunk.length
-
-  c.on_end = ->
-    data = new Buffer(length)
-    position = 0
-    for chunk in c.chunks
-      chunk.copy data, position
-      position += chunk.length
-    c.chunks = []
-
-    res = {}
-    # now the c is in res.curl, delete curl in curls
-    # if res destruct, curl will be destruct after gc
-    res.curl_ = c
-    delete curls[c.id]
-
-    if c.options.RAW
-      res.body = data
-    else
-      res.body = data.toString() #.toString()
-    res.status = res.code = c.getinfo('RESPONSE_CODE')
-
-    res.info = (info)->
-      unless @curl_?
-        throw new Error('curl is closed')
-      @curl_.getinfo(info)
-
-    res.close = ->
-      @curl_.close() if @curl_?
-      @curl_ = null
-      @body  = null
-
-    # if curl returns to fast, avoid cb recursive call
-    process.nextTick!
-    cb null, res
-
-  c.on_error = (err)->
-    curls[c.id].close()
-    delete curls[c.id]
-    process.nextTick!
-    cb err, null
-
-  c.setopt('URL', url)
-  c.perform()
-  c
-
-curl.Curl = Curl
-curl.get_count = ->
-  Curl.get_count()
+curl = CurlBuilder.create()
 module.exports = curl
diff --git a/src/node-curl.h b/src/node-curl.h
index b16d54f..f194252 100644
--- a/src/node-curl.h
+++ b/src/node-curl.h
@@ -187,7 +187,7 @@ class NodeCurl
 			cur = slist;
 			while (cur)
 			{
-				array->Set(array->Length(), v8::String::New(slist->data));
+				array->Set(array->Length(), v8::String::New(cur->data));
 				cur = cur->next;
 			}
 			curl_slist_free_all(slist);