This patch adds support for thread safe stdio for Cygwin.
Cygwin uses dynamic mutexes for locking, therefore it is
necessary to:
1. Initialize FILE pointers _lock properly.
2. Destroy the lock when it is no longer needed.
Regards,
Thomas
2004-01-12 Thomas Pfaff <tpfaff@gmx.net>
* libc/stdio/fclose.c: Include sys/lock.h.
(fclose): Destroy lock when file is closed.
* libc/stdio/findfp.c (__sfp): Initialize file pointers _lock
member.
* libc/stdio/freopen.c: Include sys/lock.h.
(_freopen_r): Destroy lock when file is closed.
* libc/stdio/vfprintf.c (__sbprintf): Initialize file pointers
_lock member.