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130 lines
8.6 KiB
C
130 lines
8.6 KiB
C
/* xdelta 3 - delta compression tools and library
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* Copyright (C) 2002, 2006, 2007. Joshua P. MacDonald
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __XDELTA3_LIST__
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#define __XDELTA3_LIST__
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#define XD3_MAKELIST(LTYPE,ETYPE,LNAME) \
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\
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static inline ETYPE* \
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LTYPE ## _entry (LTYPE* l) \
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{ \
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return (ETYPE*) ((char*) l - (ptrdiff_t) &((ETYPE*) 0)->LNAME); \
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} \
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\
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static inline void \
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LTYPE ## _init (LTYPE *l) \
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{ \
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l->next = l; \
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l->prev = l; \
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} \
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\
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static inline void \
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LTYPE ## _add (LTYPE *prev, LTYPE *next, LTYPE *ins) \
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{ \
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next->prev = ins; \
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prev->next = ins; \
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ins->next = next; \
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ins->prev = prev; \
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} \
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\
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static inline void \
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LTYPE ## _push_back (LTYPE *l, ETYPE *i) \
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{ \
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LTYPE ## _add (l->prev, l, & i->LNAME); \
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} \
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\
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static inline void \
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LTYPE ## _del (LTYPE *next, \
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LTYPE *prev) \
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{ \
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next->prev = prev; \
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prev->next = next; \
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} \
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\
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static inline ETYPE* \
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LTYPE ## _remove (ETYPE *f) \
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{ \
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LTYPE *i = f->LNAME.next; \
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LTYPE ## _del (f->LNAME.next, f->LNAME.prev); \
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return LTYPE ## _entry (i); \
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} \
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\
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static inline ETYPE* \
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LTYPE ## _pop_back (LTYPE *l) \
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{ \
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LTYPE *i = l->prev; \
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LTYPE ## _del (i->next, i->prev); \
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return LTYPE ## _entry (i); \
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} \
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\
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static inline ETYPE* \
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LTYPE ## _pop_front (LTYPE *l) \
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{ \
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LTYPE *i = l->next; \
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LTYPE ## _del (i->next, i->prev); \
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return LTYPE ## _entry (i); \
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} \
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\
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static inline int \
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LTYPE ## _empty (LTYPE *l) \
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{ \
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return l == l->next; \
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} \
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\
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static inline ETYPE* \
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LTYPE ## _front (LTYPE *f) \
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{ \
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return LTYPE ## _entry (f->next); \
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} \
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\
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static inline ETYPE* \
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LTYPE ## _back (LTYPE *f) \
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{ \
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return LTYPE ## _entry (f->prev); \
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} \
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\
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static inline int \
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LTYPE ## _end (LTYPE *f, ETYPE *i) \
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{ \
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return f == & i->LNAME; \
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} \
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\
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static inline ETYPE* \
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LTYPE ## _next (ETYPE *f) \
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{ \
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return LTYPE ## _entry (f->LNAME.next); \
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} \
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\
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static inline usize_t \
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LTYPE ## _length (LTYPE *l) \
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{ \
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LTYPE *p; \
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int c = 0; \
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\
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for (p = l->next; p != l; p = p->next) \
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{ \
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c += 1; \
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} \
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\
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return c; \
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} \
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\
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typedef int unused_ ## LTYPE
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#endif
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