mirror of
git://git.code.sf.net/p/cdesktopenv/code
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3de4da5afb
Windows/Cygwin requires onerous special handling and the definition of additional _imp__* symbols to import/export symbols between dynamically linked binaries. Its support in AST used a lot of macros and code obfuscation. In the features/common test for this, AT&T called this the "Microsoft import/export nonsense". They're right, it's nonsense. Somehow, Microsoft's POSIX layer, SFU/Interix, always managed without it. No one has time to maintain this (especially considering how incredibly sluggish Cygwin is). And in fact, it had already fallen victim to bit rot; I confirmed this in my early experiments with reintroducing dynamic library support. No one has time to fix it, either. So, my apologies to any Cygwin fans; ksh 93u+m will never support dynamically loadable built-ins on Cygwin, even when I do manage to reintroduce dynamic linking properly.
77 lines
3 KiB
C
77 lines
3 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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* Copyright (c) 2020-2022 Contributors to ksh 93u+m *
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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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/*
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* Glenn Fowler
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* AT&T Research
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*
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* record format interface
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*/
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#ifndef _RECFMT_H
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#define _RECFMT_H 1
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#include <ast.h>
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typedef uint32_t Recfmt_t;
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#define REC_delimited 0
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#define REC_fixed 1
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#define REC_variable 2
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#define REC_method 14
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#define REC_none 15
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#define REC_M_path 0
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#define REC_M_data 1
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#define RECTYPE(f) (((f)>>28)&((1<<4)-1))
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#define REC_D_TYPE(d) ((REC_delimited<<28)|((d)&((1<<8)-1)))
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#define REC_D_DELIMITER(f) ((f)&((1<<8)-1))
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#define REC_F_TYPE(s) ((REC_fixed<<28)|((s)&((1<<28)-1)))
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#define REC_F_SIZE(f) ((f)&((1<<28)-1))
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#define REC_U_TYPE(t,a) (((t)<<28)|((a)&((1<<28)-1)))
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#define REC_U_ATTRIBUTES(f) ((f)&~((1<<28)-1))
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#define REC_V_TYPE(h,o,z,l,i) ((REC_variable<<28)|((h)<<23)|((o)<<19)|(((z)-1)<<18)|((l)<<17)|((i)<<16))
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#define REC_V_RECORD(f,s) (((f)&(((1<<16)-1)<<16))|(s))
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#define REC_V_HEADER(f) (((f)>>23)&((1<<5)-1))
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#define REC_V_OFFSET(f) (((f)>>19)&((1<<4)-1))
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#define REC_V_LENGTH(f) ((((f)>>18)&1)+1)
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#define REC_V_LITTLE(f) (((f)>>17)&1)
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#define REC_V_INCLUSIVE(f) (((f)>>16)&1)
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#define REC_V_SIZE(f) ((f)&((1<<16)-1))
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#define REC_V_ATTRIBUTES(f) ((f)&~((1<<16)-1))
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#define REC_M_TYPE(i) ((REC_method<<28)|(i))
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#define REC_M_INDEX(f) ((f)&((1<<28)-1))
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#define REC_N_TYPE() 0xffffffff
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extern char* fmtrec(Recfmt_t, int);
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extern Recfmt_t recfmt(const void*, size_t, off_t);
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extern Recfmt_t recstr(const char*, char**);
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extern ssize_t reclen(Recfmt_t, const void*, size_t);
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#endif
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