Fix tsd cleanup regressions.

Fix tsd cleanup regressions that were introduced in
5460aa6f66 (Convert all tsd variables to
reside in a single tsd structure.).  These regressions were twofold:

1) tsd_tryget() should never (and need never) return NULL.  Rename it to
   tsd_fetch() and simplify all callers.
2) tsd_*_set() must only be called when tsd is in the nominal state,
   because cleanup happens during the nominal-->purgatory transition,
   and re-initialization must not happen while in the purgatory state.
   Add tsd_nominal() and use it as needed.  Note that tsd_*{p,}_get()
   can still be used as long as no re-initialization that would require
   cleanup occurs.  This means that e.g. the thread_allocated counter
   can be updated unconditionally.
This commit is contained in:
Jason Evans
2014-10-04 11:12:53 -07:00
parent a4a972d9a1
commit 029d44cf8b
12 changed files with 137 additions and 147 deletions

View File

@@ -390,12 +390,14 @@ tsd_arena_set
tsd_boot
tsd_cleanup
tsd_cleanup_wrapper
tsd_fetch
tsd_get
tsd_get_wrapper
tsd_initialized
tsd_init_check_recursion
tsd_init_finish
tsd_init_head
tsd_nominal
tsd_quarantine_get
tsd_quarantine_set
tsd_set
@@ -411,7 +413,6 @@ tsd_thread_allocated_get
tsd_thread_allocated_set
tsd_thread_deallocated_get
tsd_thread_deallocated_set
tsd_tryget
u2rz
valgrind_freelike_block
valgrind_make_mem_defined