diff options
Diffstat (limited to 'usr/src/lib/libast/common/sfio/sfmutex.c')
| -rw-r--r-- | usr/src/lib/libast/common/sfio/sfmutex.c | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/usr/src/lib/libast/common/sfio/sfmutex.c b/usr/src/lib/libast/common/sfio/sfmutex.c deleted file mode 100644 index ac17596b5b..0000000000 --- a/usr/src/lib/libast/common/sfio/sfmutex.c +++ /dev/null @@ -1,69 +0,0 @@ -/*********************************************************************** -* * -* This software is part of the ast package * -* Copyright (c) 1985-2010 AT&T Intellectual Property * -* and is licensed under the * -* Common Public License, Version 1.0 * -* by AT&T Intellectual Property * -* * -* A copy of the License is available at * -* http://www.opensource.org/licenses/cpl1.0.txt * -* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * -* * -* Information and Software Systems Research * -* AT&T Research * -* Florham Park NJ * -* * -* Glenn Fowler <gsf@research.att.com> * -* David Korn <dgk@research.att.com> * -* Phong Vo <kpv@research.att.com> * -* * -***********************************************************************/ -#include "sfhdr.h" - -/* Obtain/release exclusive use of a stream. -** -** Written by Kiem-Phong Vo. -*/ - -/* the main locking/unlocking interface */ -#if __STD_C -int sfmutex(Sfio_t* f, int type) -#else -int sfmutex(f, type) -Sfio_t* f; -int type; -#endif -{ -#if !vt_threaded - NOTUSED(f); NOTUSED(type); - return 0; -#else - - SFONCE(); - - if(!f) - return -1; - - if(!f->mutex) - { if(f->bits&SF_PRIVATE) - return 0; - - vtmtxlock(_Sfmutex); - f->mutex = vtmtxopen(NIL(Vtmutex_t*), VT_INIT); - vtmtxunlock(_Sfmutex); - if(!f->mutex) - return -1; - } - - if(type == SFMTX_LOCK) - return vtmtxlock(f->mutex); - else if(type == SFMTX_TRYLOCK) - return vtmtxtrylock(f->mutex); - else if(type == SFMTX_UNLOCK) - return vtmtxunlock(f->mutex); - else if(type == SFMTX_CLRLOCK) - return vtmtxclrlock(f->mutex); - else return -1; -#endif /*vt_threaded*/ -} |