[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/build/uClibc/libpthread/nptl/TODO b/ap/build/uClibc/libpthread/nptl/TODO
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+- 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