From a86c329f99bf9cccb98a80f6d01316fb5305a169 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Mon, 5 Apr 2004 14:12:32 +0000
Subject: [PATCH] Change getpid() while loop to use sched_yield(), greatly
speeds up test.
sched_yield is a requirement for the test but not for our PostgreSQL
code, so if it causes a portability problem, we will remove it.
---
src/tools/thread/thread_test.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/src/tools/thread/thread_test.c b/src/tools/thread/thread_test.c
index d7ea309d243..903462755f1 100644
--- a/src/tools/thread/thread_test.c
+++ b/src/tools/thread/thread_test.c
@@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/tools/thread/thread_test.c,v 1.13 2004/04/05 05:43:06 momjian Exp $
+ * $PostgreSQL: pgsql/src/tools/thread/thread_test.c,v 1.14 2004/04/05 14:12:32 momjian Exp $
*
* This program tests to see if your standard libc functions use
* pthread_setspecific()/pthread_getspecific() to be thread-safe.
@@ -83,7 +83,7 @@ defines to your template/$port file before compiling this program.\n\n"
pthread_create(&thread2, NULL, (void * (*)(void *)) func_call_2, NULL);
while (thread1_done == 0 || thread2_done == 0)
- getpid(); /* force system call */
+ sched_yield(); /* force system call */
printf("Add this to your template/$port file:\n\n");
@@ -129,7 +129,7 @@ void func_call_1(void) {
*/
errno1_set = 1;
while (errno2_set == 0)
- getpid(); /* force system call */
+ sched_yield(); /* force system call */
if (errno != EEXIST)
{
fprintf(stderr, "errno not thread-safe; exiting\n");
@@ -184,7 +184,7 @@ void func_call_2(void) {
*/
errno2_set = 1;
while (errno1_set == 0)
- getpid(); /* force system call */
+ sched_yield(); /* force system call */
if (errno != ENOENT)
{
fprintf(stderr, "errno not thread-safe; exiting\n");
--
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