[gnunet] 02/02: Core: Added logic to decrease restart delay of connection to Transport depending on how long the connection to Transport lasted.

[gnunet]

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t3sserakt pushed a commit to branch master
in repository gnunet.

commit aaf07c7eaf41b9e258b6dfcd8a9181e0521fd433
Author: t3sserakt <t3ss@posteo.de>
AuthorDate: Thu Feb 8 14:20:34 2024 +0100

    Core: Added logic to decrease restart delay of connection to Transport 
depending on how long the connection to Transport lasted.
---
 src/service/transport/transport_api2_core.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/service/transport/transport_api2_core.c 
b/src/service/transport/transport_api2_core.c
index 3eb6c651e..598eef184 100644
--- a/src/service/transport/transport_api2_core.c
+++ b/src/service/transport/transport_api2_core.c
@@ -159,6 +159,11 @@ struct GNUNET_TRANSPORT_CoreHandle
    */
   struct GNUNET_TIME_Relative reconnect_delay;
 
+  /**
+   * Transport connection started at.
+   */
+  struct GNUNET_TIME_Absolute restarted_at;
+
   /**
    * Should we check that @e self matches what the service thinks?
    * (if #GNUNET_NO, then @e self is all zeros!).
@@ -628,6 +633,7 @@ reconnect (void *cls)
   GNUNET_assert (NULL == h->mq);
   h->mq =
     GNUNET_CLIENT_connect (h->cfg, "transport", handlers, &mq_error_handler, 
h);
+  h->restarted_at = GNUNET_TIME_absolute_get ();
   if (NULL == h->mq)
     return;
   env = GNUNET_MQ_msg (s, GNUNET_MESSAGE_TYPE_TRANSPORT_START);
@@ -670,6 +676,20 @@ disconnect_and_schedule_reconnect (struct 
GNUNET_TRANSPORT_CoreHandle *h)
 {
   GNUNET_assert (NULL == h->reconnect_task);
   disconnect (h);
+  {
+    /* Reduce delay based on runtime of the connection,
+       so that there is a cool-down if a connection is up
+       for a while. */
+    struct GNUNET_TIME_Relative runtime;
+    unsigned int minutes;
+
+    runtime = GNUNET_TIME_absolute_get_duration (h->restarted_at);
+    minutes = runtime.rel_value_us / GNUNET_TIME_UNIT_MINUTES.rel_value_us;
+    if (minutes > 31)
+      h->reconnect_delay = GNUNET_TIME_UNIT_ZERO;
+    else
+      h->reconnect_delay.rel_value_us >>= minutes;
+  }
   LOG (GNUNET_ERROR_TYPE_DEBUG,
        "Scheduling task to reconnect to transport service in %s.\n",
        GNUNET_STRINGS_relative_time_to_string (h->reconnect_delay, 
GNUNET_YES));

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