From 344f8cf1e000704d53d7841eb896d83b470d7a08 Mon Sep 17 00:00:00 2001
From: Eric Wong <normalperson@yhbt.net>
Date: Sat, 24 Oct 2009 22:13:23 -0700
Subject: rev/evma: move common code for event models into ev_core

EventMachine and Rev models seem to be able to share a lot of
common code, so lets share.  We may support Packet in the
future, too, and end up with a similar programming model there
as well.
---
 lib/rainbows/rev.rb | 79 ++---------------------------------------------------
 1 file changed, 3 insertions(+), 76 deletions(-)

(limited to 'lib/rainbows/rev.rb')

diff --git a/lib/rainbows/rev.rb b/lib/rainbows/rev.rb
index d27538c..572b88a 100644
--- a/lib/rainbows/rev.rb
+++ b/lib/rainbows/rev.rb
@@ -1,5 +1,6 @@
 # -*- encoding: binary -*-
 require 'rev'
+require 'rainbows/ev_core'
 
 module Rainbows
 
@@ -26,25 +27,13 @@ module Rainbows
     include Base
 
     class Client < ::Rev::IO
-      include Unicorn
-      include Rainbows::Const
+      include Rainbows::EvCore
       G = Rainbows::G
 
       def initialize(io)
         G.cur += 1
         super(io)
-        @remote_addr = ::TCPSocket === io ? io.peeraddr.last : LOCALHOST
-        @env = {}
-        @hp = HttpParser.new
-        @state = :headers # [ :body [ :trailers ] ] :app_call :close
-        @buf = ""
-        @deferred_bodies = [] # for (fast) regular files only
-      end
-
-      # graceful exit, like SIGQUIT
-      def quit
-        @deferred_bodies.clear
-        @state = :close
+        post_init
       end
 
       # queued, optional response bodies, it should only be unpollable "fast"
@@ -56,21 +45,6 @@ module Rainbows
         on_write_complete unless @hp.headers? # triggers a write
       end
 
-      def handle_error(e)
-        quit
-        msg = case e
-        when EOFError,Errno::ECONNRESET,Errno::EPIPE,Errno::EINVAL,Errno::EBADF
-          ERROR_500_RESPONSE
-        when HttpParserError # try to tell the client they're bad
-          ERROR_400_RESPONSE
-        else
-          G.logger.error "Read error: #{e.inspect}"
-          G.logger.error e.backtrace.join("\n")
-          ERROR_500_RESPONSE
-        end
-        write(msg)
-      end
-
       def app_call
         begin
           (@env[RACK_INPUT] = @input).rewind
@@ -116,53 +90,6 @@ module Rainbows
       def on_close
         G.cur -= 1
       end
-
-      def tmpio
-        io = Util.tmpio
-        def io.size
-          # already sync=true at creation, so no need to flush before stat
-          stat.size
-        end
-        io
-      end
-
-      # TeeInput doesn't map too well to this right now...
-      def on_read(data)
-        case @state
-        when :headers
-          @hp.headers(@env, @buf << data) or return
-          @state = :body
-          len = @hp.content_length
-          if len == 0
-            @input = HttpRequest::NULL_IO
-            app_call # common case
-          else # nil or len > 0
-            # since we don't do streaming input, we have no choice but
-            # to take over 100-continue handling from the Rack application
-            if @env[HTTP_EXPECT] =~ /\A100-continue\z/i
-              write(EXPECT_100_RESPONSE)
-              @env.delete(HTTP_EXPECT)
-            end
-            @input = len && len <= MAX_BODY ? StringIO.new("") : tmpio
-            @hp.filter_body(@buf2 = @buf.dup, @buf)
-            @input << @buf2
-            on_read("")
-          end
-        when :body
-          if @hp.body_eof?
-            @state = :trailers
-            on_read(data)
-          elsif data.size > 0
-            @hp.filter_body(@buf2, @buf << data)
-            @input << @buf2
-            on_read("")
-          end
-        when :trailers
-          @hp.trailers(@env, @buf << data) and app_call
-        end
-        rescue Object => e
-          handle_error(e)
-      end
     end
 
     class Server < ::Rev::IO
-- 
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