overhaul cancellation to fix resource leaks and dangerous behavior with signals

[musl] / src / internal / pthread_impl.h

diff --git a/src/internal/pthread_impl.h b/src/internal/pthread_impl.h
index c174011..e3a9a0e 100644 (file)
--- a/src/internal/pthread_impl.h
+++ b/src/internal/pthread_impl.h
@@ -37,6 +37,11 @@ struct pthread {
        void **tsd;
        pthread_attr_t attr;
        volatile int dead;
+       struct {
+               void **head;
+               long off;
+               void *pending;
+       } robust_list;
 };
 
 #define __SU (sizeof(size_t)/sizeof(int))
@@ -47,8 +52,9 @@ struct pthread {
 #define _m_type __u.__i[0]
 #define _m_lock __u.__i[1]
 #define _m_waiters __u.__i[2]
-#define _m_owner __u.__i[3]
-#define _m_count __u.__i[4]
+#define _m_prev __u.__p[3]
+#define _m_next __u.__p[4]
+#define _m_count __u.__i[5]
 #define _c_block __u.__i[0]
 #define _c_clock __u.__i[1]
 #define _rw_wrlock __u.__i[0]