17 #ifndef __TBB_queuing_rw_mutex_H 18 #define __TBB_queuing_rw_mutex_H 20 #define __TBB_queuing_rw_mutex_H_include_area 38 #if TBB_USE_THREADING_TOOLS 152 #undef __TBB_queuing_rw_mutex_H_include_area static const bool is_fair_mutex
Queuing reader-writer mutex with local-only spinning.
bool try_acquire(queuing_rw_mutex &m, bool write=true)
Acquire lock on given mutex if free (i.e. non-blocking)
scoped_lock *__TBB_atomic *__TBB_atomic my_next
#define __TBB_DEFINE_PROFILING_SET_NAME(sync_object_type)
void acquire(queuing_rw_mutex &m, bool write=true)
Acquire lock on given mutex.
void release_internal_lock()
Release the internal lock.
void release()
Release lock.
~queuing_rw_mutex()
Destructor asserts if the mutex is acquired, i.e. q_tail is non-NULL.
unsigned char __TBB_atomic my_going
The local spin-wait variable.
void __TBB_EXPORTED_METHOD internal_construct()
void wait_for_release_of_internal_lock()
Wait for internal lock to be released.
atomic< state_t > my_state
State of the request: reader, writer, active reader, other service states.
static const bool is_recursive_mutex
void unblock_or_wait_on_internal_lock(uintptr_t)
A helper function.
scoped_lock(queuing_rw_mutex &m, bool write=true)
Acquire lock on given mutex.
~scoped_lock()
Release lock (if lock is held).
The scoped locking pattern.
Base class for types that should not be copied or assigned.
void initialize()
Initialize fields to mean "no lock held".
unsigned char my_internal_lock
A tiny internal lock.
bool upgrade_to_writer()
Upgrade reader to become a writer.
queuing_rw_mutex * my_mutex
The pointer to the mutex owned, or NULL if not holding a mutex.
atomic< scoped_lock * > q_tail
The last competitor requesting the lock.
scoped_lock *__TBB_atomic my_prev
The pointer to the previous and next competitors for a mutex.
#define __TBB_EXPORTED_METHOD
#define __TBB_ASSERT(predicate, comment)
No-op version of __TBB_ASSERT.
bool downgrade_to_reader()
Downgrade writer to become a reader.
scoped_lock()
Construct lock that has not acquired a mutex.
bool try_acquire_internal_lock()
Try to acquire the internal lock.
void poison_pointer(T *__TBB_atomic &)
queuing_rw_mutex()
Construct unacquired mutex.
void acquire_internal_lock()
Acquire the internal lock.
static const bool is_rw_mutex