From 8ad8a41a84bf7e17c6e9a5fd8d975370a222c0fe Mon Sep 17 00:00:00 2001
From: Craig Tiller <craig.tiller@gmail.com>
Date: Wed, 25 Feb 2015 08:36:40 -0800
Subject: Introduce slowdown factor for unit test deadlines

Dramatically lowers (eliminates maybe?) false negatives from ?SAN runs.
---
 test/core/util/port_posix.c  |  7 ++++---
 test/core/util/test_config.h | 14 ++++++++++++++
 2 files changed, 18 insertions(+), 3 deletions(-)

(limited to 'test/core/util')

diff --git a/test/core/util/port_posix.c b/test/core/util/port_posix.c
index f0fe1a0e7c..0b6e7918ac 100644
--- a/test/core/util/port_posix.c
+++ b/test/core/util/port_posix.c
@@ -113,11 +113,12 @@ int grpc_pick_unused_port(void) {
 
   /* Type of port to first pick in next iteration */
   int is_tcp = 1;
-  int try = 0;
+  int try
+    = 0;
 
   for (;;) {
-    int port =
-        try < NUM_RANDOM_PORTS_TO_PICK ? rand() % (65536 - 30000) + 30000 : 0;
+    int port = try
+      < NUM_RANDOM_PORTS_TO_PICK ? rand() % (65536 - 30000) + 30000 : 0;
     if (!is_port_available(&port, is_tcp)) {
       continue;
     }
diff --git a/test/core/util/test_config.h b/test/core/util/test_config.h
index b97fbfa613..74c2a3cf1b 100644
--- a/test/core/util/test_config.h
+++ b/test/core/util/test_config.h
@@ -34,10 +34,24 @@
 #ifndef __GRPC_TEST_UTIL_TEST_CONFIG_H__
 #define __GRPC_TEST_UTIL_TEST_CONFIG_H__
 
+#include <grpc/support/time.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif /*  __cplusplus */
 
+#ifndef GRPC_TEST_SLOWDOWN_FACTOR
+#define GRPC_TEST_SLOWDOWN_FACTOR 1.0
+#endif
+
+#define GRPC_TIMEOUT_SECONDS_TO_DEADLINE(x) \
+  gpr_time_add(gpr_now(),                   \
+               gpr_time_from_micros(GRPC_TEST_SLOWDOWN_FACTOR * 1e6 * (x)))
+
+#define GRPC_TIMEOUT_MILLIS_TO_DEADLINE(x) \
+  gpr_time_add(gpr_now(),                   \
+               gpr_time_from_micros(GRPC_TEST_SLOWDOWN_FACTOR * 1e3 * (x)))
+
 void grpc_test_init(int argc, char **argv);
 
 #ifdef __cplusplus
-- 
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