diff --git a/src/exchange-lib/backoff.h b/src/exchange-lib/backoff.h
new file mode 100644
index 000000000..2af41e7c7
--- /dev/null
+++ b/src/exchange-lib/backoff.h
@@ -0,0 +1,38 @@
+/*
+ This file is part of TALER
+ Copyright (C) 2014-2018 GNUnet e.V.
+
+ TALER is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ TALER; see the file COPYING. If not, see
+
+*/
+
+/**
+ * @file exchange-lib/backoff.h
+ * @brief backoff computation for the exchange lib
+ * @author Florian Dold
+ */
+
+
+#ifndef _TALER_BACKOFF_H
+#define _TALER_BACKOFF_H
+
+#include "platform.h"
+#include
+
+/**
+ * Random exponential backoff used in the exchange lib.
+ */
+#define EXCHANGE_LIB_BACKOFF(r) GNUNET_TIME_randomized_backoff ( \
+ (r), \
+ GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2));
+
+#endif
diff --git a/src/exchange-lib/curl_defaults.h b/src/exchange-lib/curl_defaults.h
index 87fccf842..4ca574230 100644
--- a/src/exchange-lib/curl_defaults.h
+++ b/src/exchange-lib/curl_defaults.h
@@ -21,6 +21,10 @@
* @author Florian Dold
*/
+#ifndef _TALER_CURL_DEFAULTS_H
+#define _TALER_CURL_DEFAULTS_H
+
+
#include "platform.h"
#include
@@ -33,3 +37,5 @@
*/
CURL *
TEL_curl_easy_get (char *url);
+
+#endif /* _TALER_CURL_DEFAULTS_H */
diff --git a/src/exchange-lib/exchange_api_handle.c b/src/exchange-lib/exchange_api_handle.c
index 89915aacf..a5f4f6969 100644
--- a/src/exchange-lib/exchange_api_handle.c
+++ b/src/exchange-lib/exchange_api_handle.c
@@ -28,6 +28,7 @@
#include "taler_signatures.h"
#include "exchange_api_handle.h"
#include "curl_defaults.h"
+#include "backoff.h"
/**
* Which revision of the Taler protocol is implemented
@@ -848,7 +849,7 @@ keys_completed_cb (void *cls,
free_keys_request (kr);
exchange->kr = NULL;
GNUNET_assert (NULL == exchange->retry_task);
- exchange->retry_delay = GNUNET_TIME_randomized_backoff (exchange->retry_delay);
+ exchange->retry_delay = EXCHANGE_LIB_BACKOFF (exchange->retry_delay);
exchange->retry_task = GNUNET_SCHEDULER_add_delayed (exchange->retry_delay,
&request_keys,
exchange);
diff --git a/src/exchange-lib/testing_api_cmd_deposit.c b/src/exchange-lib/testing_api_cmd_deposit.c
index 25a56e829..ecace5654 100644
--- a/src/exchange-lib/testing_api_cmd_deposit.c
+++ b/src/exchange-lib/testing_api_cmd_deposit.c
@@ -29,6 +29,7 @@
#include "exchange_api_handle.h"
#include "taler_testing_lib.h"
#include "taler_signatures.h"
+#include "backoff.h"
/**
@@ -181,7 +182,7 @@ deposit_cb (void *cls,
if (TALER_EC_DB_COMMIT_FAILED_ON_RETRY == ec)
ds->backoff = GNUNET_TIME_UNIT_ZERO;
else
- ds->backoff = GNUNET_TIME_randomized_backoff (ds->backoff);
+ ds->backoff = EXCHANGE_LIB_BACKOFF (ds->backoff);
ds->retry_task = GNUNET_SCHEDULER_add_delayed (ds->backoff,
&do_retry,
ds);
diff --git a/src/exchange-lib/testing_api_cmd_fakebank_transfer.c b/src/exchange-lib/testing_api_cmd_fakebank_transfer.c
index 84ac3dcc5..1f6015192 100644
--- a/src/exchange-lib/testing_api_cmd_fakebank_transfer.c
+++ b/src/exchange-lib/testing_api_cmd_fakebank_transfer.c
@@ -32,6 +32,7 @@
#include "taler_signatures.h"
#include "taler_testing_lib.h"
#include "taler_testing_bank_lib.h"
+#include "backoff.h"
/**
* State for a "fakebank transfer" CMD.
@@ -212,7 +213,7 @@ add_incoming_cb (void *cls,
if (TALER_EC_DB_COMMIT_FAILED_ON_RETRY == ec)
fts->backoff = GNUNET_TIME_UNIT_ZERO;
else
- fts->backoff = GNUNET_TIME_randomized_backoff (fts->backoff);
+ fts->backoff = EXCHANGE_LIB_BACKOFF (fts->backoff);
fts->retry_task = GNUNET_SCHEDULER_add_delayed (fts->backoff,
&do_retry,
fts);
diff --git a/src/exchange-lib/testing_api_cmd_refresh.c b/src/exchange-lib/testing_api_cmd_refresh.c
index 3ca04d220..23fb4715b 100644
--- a/src/exchange-lib/testing_api_cmd_refresh.c
+++ b/src/exchange-lib/testing_api_cmd_refresh.c
@@ -29,6 +29,7 @@
#include "exchange_api_handle.h"
#include "taler_testing_lib.h"
#include "taler_signatures.h"
+#include "backoff.h"
/**
* Data for a coin to be melted.
@@ -322,7 +323,7 @@ reveal_cb (void *cls,
if (TALER_EC_DB_COMMIT_FAILED_ON_RETRY == ec)
rrs->backoff = GNUNET_TIME_UNIT_ZERO;
else
- rrs->backoff = GNUNET_TIME_randomized_backoff (rrs->backoff);
+ rrs->backoff = EXCHANGE_LIB_BACKOFF (rrs->backoff);
rrs->retry_task = GNUNET_SCHEDULER_add_delayed (rrs->backoff,
&do_reveal_retry,
rrs);
@@ -551,7 +552,7 @@ link_cb (void *cls,
if (TALER_EC_DB_COMMIT_FAILED_ON_RETRY == ec)
rls->backoff = GNUNET_TIME_UNIT_ZERO;
else
- rls->backoff = GNUNET_TIME_randomized_backoff (rls->backoff);
+ rls->backoff = EXCHANGE_LIB_BACKOFF (rls->backoff);
rls->retry_task = GNUNET_SCHEDULER_add_delayed (rls->backoff,
&do_link_retry,
rls);
@@ -837,7 +838,7 @@ melt_cb (void *cls,
if (TALER_EC_DB_COMMIT_FAILED_ON_RETRY == ec)
rms->backoff = GNUNET_TIME_UNIT_ZERO;
else
- rms->backoff = GNUNET_TIME_randomized_backoff (rms->backoff);
+ rms->backoff = EXCHANGE_LIB_BACKOFF (rms->backoff);
rms->retry_task = GNUNET_SCHEDULER_add_delayed (rms->backoff,
&do_melt_retry,
rms);
diff --git a/src/exchange-lib/testing_api_cmd_withdraw.c b/src/exchange-lib/testing_api_cmd_withdraw.c
index 58464d4d4..51dd1d719 100644
--- a/src/exchange-lib/testing_api_cmd_withdraw.c
+++ b/src/exchange-lib/testing_api_cmd_withdraw.c
@@ -29,6 +29,7 @@
#include "exchange_api_handle.h"
#include "taler_signatures.h"
#include "taler_testing_lib.h"
+#include "backoff.h"
@@ -183,7 +184,7 @@ reserve_withdraw_cb (void *cls,
if (TALER_EC_DB_COMMIT_FAILED_ON_RETRY == ec)
ws->backoff = GNUNET_TIME_UNIT_ZERO;
else
- ws->backoff = GNUNET_TIME_randomized_backoff (ws->backoff);
+ ws->backoff = EXCHANGE_LIB_BACKOFF (ws->backoff);
ws->retry_task = GNUNET_SCHEDULER_add_delayed (ws->backoff,
&do_retry,
ws);