observed SocketFileWrapper bug fixed

1 files changed, 4 insertions, 1 deletions

diff --git a/wsgitools/scgi/forkpool.py b/wsgitools/scgi/forkpool.py
index 8d56178..12a82ff 100644
--- a/wsgitools/scgi/forkpool.py
+++ b/wsgitools/scgi/forkpool.py
@@ -25,8 +25,11 @@ class SocketFileWrapper:
         internal method for receiving and counting incoming data
         @raise socket.error:
         """
+        toread = min(size, self.toread)
+        if not toread:
+            return ""
         try:
-            data = self.sock.recv(min(size, self.toread))
+            data = self.sock.recv(toread)
         except socket.error, why:
             if why[0] in (errno.ECONNRESET, errno.ENOTCONN, errno.ESHUTDOWN):
                 data = ""