[tor-commits] [tor/release-0.3.0] turn MAX_REND_FAILURES into a function

[nickm@xxxxxxxxxxxxxx]

commit cc5a9e96674f39677a65daa2f7a2f5af7ac3106e
Author: Roger Dingledine <arma@xxxxxxxxxxxxxx>
Date:   Fri Jan 19 02:38:07 2018 -0500

    turn MAX_REND_FAILURES into a function
    
    no actual changes in behavior
---
 src/or/rendservice.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/src/or/rendservice.c b/src/or/rendservice.c
index acc431a57..b503eda7f 100644
--- a/src/or/rendservice.c
+++ b/src/or/rendservice.c
@@ -108,13 +108,18 @@ struct rend_service_port_config_s {
 /** Don't try to build more than this many circuits before giving up
  * for a while.*/
 #define MAX_INTRO_CIRCS_PER_PERIOD 10
-/** How many times will a hidden service operator attempt to connect to
- * a requested rendezvous point before giving up? */
-#define MAX_REND_FAILURES 1
 /** How many seconds should we spend trying to connect to a requested
  * rendezvous point before giving up? */
 #define MAX_REND_TIMEOUT 30
 
+/** How many times will a hidden service operator attempt to connect to
+ * a requested rendezvous point before giving up? */
+static int
+get_max_rend_failures(void)
+{
+  return 1;
+}
+
 /* Hidden service directory file names:
  * new file names should be added to rend_service_add_filenames_to_list()
  * for sandboxing purposes. */
@@ -2028,7 +2033,8 @@ rend_service_receive_introduction(origin_circuit_t *circuit,
 
   /* Launch a circuit to the client's chosen rendezvous point.
    */
-  for (i=0;i<MAX_REND_FAILURES;i++) {
+  int max_rend_failures=get_max_rend_failures();
+  for (i=0;i<max_rend_failures;i++) {
     int flags = CIRCLAUNCH_NEED_CAPACITY | CIRCLAUNCH_IS_INTERNAL;
     if (circ_needs_uptime) flags |= CIRCLAUNCH_NEED_UPTIME;
     /* A Single Onion Service only uses a direct connection if its
@@ -2930,11 +2936,13 @@ rend_service_relaunch_rendezvous(origin_circuit_t *oldcirc)
   }
   oldcirc->hs_service_side_rend_circ_has_been_relaunched = 1;
 
-  /* We check failure_count >= MAX_REND_FAILURES-1 below rather than
-   * failure_count >= MAX_REND_FAILURES, because we increment the failure
-   * count for our current failure *after* this clause. */
+  /* We check failure_count >= get_max_rend_failures()-1 below, and the -1
+   * is because we increment the failure count for our current failure
+   * *after* this clause. */
+  int max_rend_failures = get_max_rend_failures() - 1;
+
   if (!oldcirc->build_state ||
-      oldcirc->build_state->failure_count >= MAX_REND_FAILURES-1 ||
+      oldcirc->build_state->failure_count >= max_rend_failures ||
       oldcirc->build_state->expiry_time < time(NULL)) {
     log_info(LD_REND,
              "Attempt to build circuit to %s for rendezvous has failed "



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