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-rw-r--r--librt/kernel-posix-timers.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/librt/kernel-posix-timers.h b/librt/kernel-posix-timers.h
index bf246c925..f8bfdc2ae 100644
--- a/librt/kernel-posix-timers.h
+++ b/librt/kernel-posix-timers.h
@@ -10,6 +10,25 @@
#include <pthread.h>
#endif
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+/* Nonzero if the system calls are not available. */
+extern int __no_posix_timers attribute_hidden;
+
+/* Callback to start helper thread. */
+extern void __start_helper_thread (void) attribute_hidden;
+
+/* Control variable for helper thread creation. */
+extern pthread_once_t __helper_once attribute_hidden;
+
+/* TID of the helper thread. */
+extern pid_t __helper_tid attribute_hidden;
+
+/* List of active SIGEV_THREAD timers. */
+extern struct timer *__active_timer_sigev_thread attribute_hidden;
+/* Lock for the __active_timer_sigev_thread. */
+extern pthread_mutex_t __active_timer_sigev_thread_lock attribute_hidden;
+#endif
+
/* Type of timers in the kernel */
typedef int kernel_timer_t;
@@ -33,4 +52,7 @@ struct timer {
#ifdef __UCLIBC_HAS_THREADS__
pthread_attr_t attr;
#endif
+
+ /* Next element in list of active SIGEV_THREAD timers. */
+ struct timer *next;
};