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-rw-r--r--linuxthreads/ChangeLog4
-rw-r--r--linuxthreads/internals.h1
-rw-r--r--linuxthreads/mutex.c12
-rw-r--r--linuxthreads/ptfork.c1
4 files changed, 18 insertions, 0 deletions
diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog
index 2a9683ec34..013e640831 100644
--- a/linuxthreads/ChangeLog
+++ b/linuxthreads/ChangeLog
@@ -1,5 +1,9 @@
 2000-03-23  Ulrich Drepper  <drepper@redhat.com>
 
+	* mutex.c (__pthread_reset_pthread_once): Reset once_masterlock.
+	* internals.h (__pthread_reset_pthread_once): Add prototype.
+	* ptfork.c (__fork): Call __pthread_reset_pthread_once.
+
 	* manager.c (pthread_handle_create): Store ID of new thread before
 	clone call.
 
diff --git a/linuxthreads/internals.h b/linuxthreads/internals.h
index 3fcec42630..8cb9b6837c 100644
--- a/linuxthreads/internals.h
+++ b/linuxthreads/internals.h
@@ -395,6 +395,7 @@ int __pthread_manager(void *reqfd);
 int __pthread_manager_event(void *reqfd);
 void __pthread_manager_sighandler(int sig);
 void __pthread_reset_main_thread(void);
+void __pthread_reset_pthread_once(void);
 void __fresetlockfiles(void);
 void __pthread_manager_adjust_prio(int thread_prio);
 void __pthread_set_own_extricate_if(pthread_descr self, pthread_extricate_if *peif);
diff --git a/linuxthreads/mutex.c b/linuxthreads/mutex.c
index 06d97df03f..97b5a4fb84 100644
--- a/linuxthreads/mutex.c
+++ b/linuxthreads/mutex.c
@@ -223,3 +223,15 @@ int __pthread_once(pthread_once_t * once_control, void (*init_routine)(void))
   return 0;
 }
 strong_alias (__pthread_once, pthread_once)
+
+/*
+ * This is called in the child process after a fork to make
+ * sure that the global mutex pthread_once is not held,
+ * and that the condition variable is reset to an initial state.
+ */
+
+void __pthread_reset_pthread_once(void)
+{
+  pthread_mutex_init(&once_masterlock, NULL);
+  pthread_cond_init(&once_finished, NULL);
+}
diff --git a/linuxthreads/ptfork.c b/linuxthreads/ptfork.c
index 1dfa8b6ab7..4cd883fd23 100644
--- a/linuxthreads/ptfork.c
+++ b/linuxthreads/ptfork.c
@@ -89,6 +89,7 @@ pid_t __fork(void)
   pid = __libc_fork();
   if (pid == 0) {
     __pthread_reset_main_thread();
+    __pthread_reset_pthread_once();
     __fresetlockfiles();
     pthread_call_handlers(child);
   } else {