Add test for thread-safe errno to thread test program.

diff --git a/src/tools/thread/thread_test.c b/src/tools/thread/thread_test.c
index a09c8fca02d2ef495434edffee4602d2895155bf..f97f89ed2b72fcca058561e75e9381d8910a736d 100644 (file)
--- 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 1.7 2004/02/11 21:44:06 momjian Exp $
+ *     $PostgreSQL: pgsql/src/tools/thread/thread_test.c,v 1.8 2004/03/27 23:02:44 momjian Exp $
  *
  *     This program tests to see if your standard libc functions use
  *     pthread_setspecific()/pthread_getspecific() to be thread-safe.
@@ -29,10 +29,15 @@
 #include <pwd.h>
 #include <string.h>
 #include <errno.h>
+#include <fcntl.h>
+#include <errno.h>
 
 void func_call_1(void);
 void func_call_2(void);
 
+int errno1_set = 0;
+int errno2_set = 0;
+
 char *strerror_p1;
 char *strerror_p2;
 
@@ -42,6 +47,9 @@ struct passwd *passwd_p2;
 struct hostent *hostent_p1;
 struct hostent *hostent_p2;
 
+pthread_mutex_t singlethread_lock1 = PTHREAD_MUTEX_INITIALIZER;
+pthread_mutex_t singlethread_lock2 = PTHREAD_MUTEX_INITIALIZER;
+                            
 int main(int argc, char *argv[])
 {
        pthread_t               thread1,
@@ -84,7 +92,30 @@ defines to your template/$port file before compiling this program.\n\n"
 
 void func_call_1(void) {
        void *p;
-
+       
+       if (open("/tmp/thread_test.1", O_RDWR | O_CREAT, 0600) < 0)
+       {
+                       fprintf(stderr, "Could not create file in /tmp, exiting\n");
+                       exit(1);
+       }
+               
+       if (open("/tmp/thread_test.1", O_RDWR | O_CREAT | O_EXCL, 0600) >= 0)
+       {
+                       fprintf(stderr, "Could not generate failure for create file in /tmp, exiting\n");
+                       exit(1);
+       }
+       /* wait for other thread to set errno */
+       errno1_set = 1;
+       while (errno2_set == 0)
+               /* loop */;
+       if (errno != EEXIST)
+       {
+                       fprintf(stderr, "errno not thread-safe; exiting\n");
+                       unlink("/tmp/thread_test.1");
+                       exit(1);
+       }
+       unlink("/tmp/thread_test.1");
+       
        strerror_p1 = strerror(EACCES);
        /*
         *      If strerror() uses sys_errlist, the pointer might change for different
@@ -112,6 +143,23 @@ void func_call_1(void) {
 void func_call_2(void) {
        void *p;
 
+       unlink("/tmp/thread_test.2");
+       if (open("/tmp/thread_test.2", O_RDONLY, 0600) >= 0)
+       {
+                       fprintf(stderr, "Read-only open succeeded without create, exiting\n");
+                       exit(1);
+       }
+       /* wait for other thread to set errno */
+       errno2_set = 1;
+       while (errno1_set == 0)
+               /* loop */;
+       if (errno != ENOENT)
+       {
+                       fprintf(stderr, "errno not thread-safe; exiting\n");
+                       unlink("/tmp/thread_test.A");
+                       exit(1);
+       }
+       
        strerror_p2 = strerror(EINVAL);
        /*
         *      If strerror() uses sys_errlist, the pointer might change for different