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Add comment that sched_yield might be a portability problem.

This commit is contained in:
Bruce Momjian 2004-04-05 14:13:45 +00:00
parent a86c329f99
commit d8fe99d98c
1 changed files with 4 additions and 4 deletions
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8
src/tools/thread/thread_test.c
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@ -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 1.14 2004/04/05 14:12:32 momjian Exp $
* $PostgreSQL: pgsql/src/tools/thread/thread_test.c,v 1.15 2004/04/05 14:13:45 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/$port file before compiling this program.\n\n"
pthread_create(&thread2, NULL, (void * (*)(void *)) func_call_2, NULL);
while (thread1_done == 0 || thread2_done == 0)
sched_yield(); /* force system call */
sched_yield(); /* if this is a portability problem, remove it */
printf("Add this to your template/$port file:\n\n");
@ -129,7 +129,7 @@ void func_call_1(void) {
*/
errno1_set = 1;
while (errno2_set == 0)
sched_yield(); /* force system call */
sched_yield();
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)
sched_yield(); /* force system call */
sched_yield();
if (errno != ENOENT)
{
fprintf(stderr, "errno not thread-safe; exiting\n");