* Make vfprintf_unlocked() an internal function, c.f. __svfscanf_unlocked().
* Add internal names for arc4random(), endnetpath(), fhstatvfs(),
fstatvfs(), mkstemp(), shquote(), statvfs(), taddr2uaddr(), uaddr2taddr(),
uuid_create_nil(), uuid_is_nil(), and wcwidth().
* Include namespace.h where supposed to.
Its API in inherently non-threadsafe (and it depends on certain properties
of the underlying stdio implementation), so it shouldn't be a first-class
function for general use, polluting the application namespace.
Also remove the FLOCKFILE() code from it - this is under control of the
calling function now.
(XXX I'm not sure whether the FLOCKFILE() should be kept in fgetln(),
this function cannot be used in multiple threads anyway. It doesn't
hurt much, and it might prevent corruption of internal FILE structures.)
takes an additional argument indicating whether this is an internal caller
taking the lock or an external (application) caller. When making an internal
lock, save the current thread cancellation state and disable cancellation
until the matching unlock. This should prevent canccelled threads from exiting
inside of stdio while holding a file lock and potentially leaving other
parts of the FILE structure in an inconsistent state.
trouble is caused by the memory allocation in the mutex initialization,
and uncontested mutexes and condition variables have become faster in the
meantime.
* Add prototype for vfscanf to <stdio.h>.
* Remove #define of vfscanf to __svfscanf from <stdio.h>.
* Include local.h in libc files which need __svfscanf.
* Add vfscanf weak alias to __svfscanf.
Fixes standards/16997.
NOTE: libc minor not bumped -- ride on the bump to 12.84 made by
itojun today.
