Use a bigger timeout when buffers are empty

README.md

@@ -1,4 +1,4 @@
-# Glorytun
+# π₁(Glorytun)=ℤ²
 
 Small, Simple and Stupid TCP VPN.
 
@@ -8,8 +8,7 @@ This code will probably format your harddisk!
 
 #### Build and Install
 
-Glorytun depends on [libsodium](https://github.com/jedisct1/libsodium) version >= 1.0.4
-and needs an AES-NI capable CPU.
+Glorytun depends on [libsodium](https://github.com/jedisct1/libsodium) version >= 1.0.4.
 
 To build and install the latest version:
 

src/main.c

@@ -1388,9 +1388,12 @@ int main (int argc, char **argv)
             }
 
             struct timeval timeout = {
-                .tv_usec = 1000,
+                .tv_usec = 100000,
             };
 
+            if (buffer_read_size(&sock.write))
+                timeout.tv_usec = 1000;
+
             if _0_(select(sock.fd+1, &rfds, NULL, NULL, &timeout)==-1) {
                 if (errno==EINTR)
                     continue;