[tor-commits] [tor/master] refactor logic to decide how much to package from inbuf

[asn@xxxxxxxxxxxxxx]

commit e4d1187584038593a75140d9a8e47024c9eba04c
Author: Roger Dingledine <arma@xxxxxxxxxxxxxx>
Date:   Wed Jul 18 21:00:27 2018 -0400

    refactor logic to decide how much to package from inbuf
    
    no actual changes in behavior
---
 src/core/or/relay.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/core/or/relay.c b/src/core/or/relay.c
index 5197ee613..05fee57a1 100644
--- a/src/core/or/relay.c
+++ b/src/core/or/relay.c
@@ -2102,14 +2102,15 @@ connection_edge_package_raw_inbuf(edge_connection_t *conn, int package_partial,
   if (!bytes_to_process)
     return 0;
 
-  if (!package_partial && bytes_to_process < RELAY_PAYLOAD_SIZE)
-    return 0;
+  length = RELAY_PAYLOAD_SIZE;
 
-  if (bytes_to_process > RELAY_PAYLOAD_SIZE) {
-    length = RELAY_PAYLOAD_SIZE;
-  } else {
-    length = bytes_to_process;
+  if (bytes_to_process < length) { /* not a full payload available */
+    if (package_partial)
+      length = bytes_to_process; /* just take whatever's available now */
+    else
+      return 0; /* nothing to do until we have a full payload */
   }
+
   stats_n_data_bytes_packaged += length;
   stats_n_data_cells_packaged += 1;
 



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