diff options
Diffstat (limited to 'nptl/TODO')
| -rw-r--r-- | nptl/TODO | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/nptl/TODO b/nptl/TODO deleted file mode 100644 index 70b8fe4f76..0000000000 --- a/nptl/TODO +++ /dev/null @@ -1,31 +0,0 @@ -- we should probably extend pthread_mutexattr_t with a field to create a - single linked list of all instances. This requires changing the - pthread_mutexattr_* functions. - - -- a new attribute for mutexes: number of times we spin before calling -sys_futex - -- for adaptive mutexes: when releasing, determine whether somebody spins. -If yes, for a short time release lock. If someone else locks no wakeup -syscall needed. - - - -- test with threaded process terminating and semadj (?) being applied - only after all threads are gone - - - -- semaphore changes: - - - sem_post should only wake one thread and only when the state of - the semaphore changed from 0 to 1 - - this also requires that sem_wait and sem_timedwait don't drop the - post if they get canceled. - - - possibly add counter field. This requires reviving the - differences between old and new semaphose funtions. The old ones - stay as they are now. The new once can use an additional field - wich is the counter for the number of waiters |