Workaround Haiku pthread_join failure in subthreadcreate_test

Issue #97 (bdwgc).

The underlying pthread_join fails because of some bug in Haiku OS
(as of hrev51798) when many threads are created in parallel.

* tests/subthread_create.c [__HAIKU__]: Include errno.h.
* tests/subthread_create.c [__HAIKU__] (main): If pthread_join returned
value is ESRCH then just end the test normally (i.e. ignore the failure
of pthread_join); add comment and TODO item.

diff --git a/tests/subthread_create.c b/tests/subthread_create.c
index f78a3eb..af74e14 100644 (file)
--- a/tests/subthread_create.c
+++ b/tests/subthread_create.c
@@ -24,6 +24,10 @@
 # include <windows.h>
 #endif
 
+#if defined(__HAIKU__)
+# include <errno.h>
+#endif
+
 #include <stdlib.h>
 #include <string.h>
 
@@ -128,6 +132,12 @@ int main(void)
         err = pthread_join(th[i], &res);
         if (err) {
             fprintf(stderr, "Failed to join thread: %s\n", strerror(err));
+#           if defined(__HAIKU__)
+                /* The error is just ignored (and the test is ended) to */
+                /* workaround some bug in Haiku pthread_join.           */
+                /* TODO: The thread is not deleted from GC_threads.     */
+                if (ESRCH == err) break;
+#           endif
             exit(1);
         }
 #     else