mirror of
git://git.code.sf.net/p/cdesktopenv/code
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100 lines
3.7 KiB
C
100 lines
3.7 KiB
C
/***********************************************************************
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* *
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* This software is part of the ast package *
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* Copyright (c) 1985-2011 AT&T Intellectual Property *
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* and is licensed under the *
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* Eclipse Public License, Version 1.0 *
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* by AT&T Intellectual Property *
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* *
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* A copy of the License is available at *
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* http://www.eclipse.org/org/documents/epl-v10.html *
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* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
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* *
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* Information and Software Systems Research *
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* AT&T Research *
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* Florham Park NJ *
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* *
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* Glenn Fowler <gsf@research.att.com> *
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* David Korn <dgk@research.att.com> *
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* Phong Vo <kpv@research.att.com> *
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* *
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***********************************************************************/
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#include "sfhdr.h"
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/* External variables and functions used only by Sfio
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** Written by Kiem-Phong Vo
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*/
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/* code to initialize mutexes */
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static Vtmutex_t Sfmutex;
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static Vtonce_t Sfonce = VTONCE_INITDATA;
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static void _sfoncef()
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{ (void)vtmtxopen(_Sfmutex, VT_INIT);
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(void)vtmtxopen(&_Sfpool.mutex, VT_INIT);
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(void)vtmtxopen(sfstdin->mutex, VT_INIT);
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(void)vtmtxopen(sfstdout->mutex, VT_INIT);
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(void)vtmtxopen(sfstderr->mutex, VT_INIT);
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_Sfdone = 1;
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}
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/* global variables used internally to the package */
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Sfextern_t _Sfextern =
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{ 0, /* _Sfpage */
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{ NIL(Sfpool_t*), 0, 0, 0, NIL(Sfio_t**) }, /* _Sfpool */
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NIL(int(*)_ARG_((Sfio_t*,int))), /* _Sfpmove */
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NIL(Sfio_t*(*)_ARG_((Sfio_t*, Sfio_t*))), /* _Sfstack */
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NIL(void(*)_ARG_((Sfio_t*, int, void*))), /* _Sfnotify */
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NIL(int(*)_ARG_((Sfio_t*))), /* _Sfstdsync */
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{ NIL(Sfread_f), /* _Sfudisc */
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NIL(Sfwrite_f),
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NIL(Sfseek_f),
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NIL(Sfexcept_f),
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NIL(Sfdisc_t*)
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},
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NIL(void(*)_ARG_((void)) ), /* _Sfcleanup */
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0, /* _Sfexiting */
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0, /* _Sfdone */
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&Sfonce, /* _Sfonce */
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_sfoncef, /* _Sfoncef */
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&Sfmutex /* _Sfmutex */
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};
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ssize_t _Sfi = -1; /* value for a few fast macro functions */
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ssize_t _Sfmaxr = 0; /* default (unlimited) max record size */
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#if vt_threaded
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static Vtmutex_t _Sfmtxin, _Sfmtxout, _Sfmtxerr;
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#define SFMTXIN (&_Sfmtxin)
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#define SFMTXOUT (&_Sfmtxout)
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#define SFMTXERR (&_Sfmtxerr)
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#define SF_STDSAFE SF_MTSAFE
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#else
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#define SFMTXIN (0)
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#define SFMTXOUT (0)
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#define SFMTXERR (0)
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#define SF_STDSAFE (0)
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#endif
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Sfio_t _Sfstdin = SFNEW(NIL(char*),-1,0,
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(SF_READ |SF_STATIC|SF_STDSAFE),NIL(Sfdisc_t*),SFMTXIN);
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Sfio_t _Sfstdout = SFNEW(NIL(char*),-1,1,
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(SF_WRITE|SF_STATIC|SF_STDSAFE),NIL(Sfdisc_t*),SFMTXOUT);
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Sfio_t _Sfstderr = SFNEW(NIL(char*),-1,2,
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(SF_WRITE|SF_STATIC|SF_STDSAFE),NIL(Sfdisc_t*),SFMTXERR);
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#undef sfstdin
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#undef sfstdout
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#undef sfstderr
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Sfio_t* sfstdin = &_Sfstdin;
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Sfio_t* sfstdout = &_Sfstdout;
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Sfio_t* sfstderr = &_Sfstderr;
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__EXTERN__(ssize_t,_Sfi);
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__EXTERN__(Sfio_t,_Sfstdin);
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__EXTERN__(Sfio_t,_Sfstdout);
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__EXTERN__(Sfio_t,_Sfstderr);
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__EXTERN__(Sfio_t*,sfstdin);
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__EXTERN__(Sfio_t*,sfstdout);
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__EXTERN__(Sfio_t*,sfstderr);
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