// framework.
// Join an existing circle.
- // L < g_linked_ptr_mutex
- void join(linked_ptr_internal const* ptr) {
+ void join(linked_ptr_internal const* ptr)
+ GTEST_LOCK_EXCLUDED_(g_linked_ptr_mutex) {
MutexLock lock(&g_linked_ptr_mutex);
linked_ptr_internal const* p = ptr;
- while (p->next_ != ptr) p = p->next_;
+ while (p->next_ != ptr) {
+ assert(p->next_ != this &&
+ "Trying to join() a linked ring we are already in. "
+ "Is GMock thread safety enabled?");
+ p = p->next_;
+ }
p->next_ = this;
next_ = ptr;
}
// Leave whatever circle we're part of. Returns true if we were the
// last member of the circle. Once this is done, you can join() another.
- // L < g_linked_ptr_mutex
- bool depart() {
+ bool depart()
+ GTEST_LOCK_EXCLUDED_(g_linked_ptr_mutex) {
MutexLock lock(&g_linked_ptr_mutex);
if (next_ == this) return true;
linked_ptr_internal const* p = next_;
- while (p->next_ != this) p = p->next_;
+ while (p->next_ != this) {
+ assert(p->next_ != next_ &&
+ "Trying to depart() a linked ring we are not in. "
+ "Is GMock thread safety enabled?");
+ p = p->next_;
+ }
p->next_ = next_;
return false;
}