http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/libguile/continuations.h

/* classes: h_files */ #ifndef CONTINUATIONSH #define CONTINUATIONSH /* Copyright (C) 1995,1996, 2000, 2001, 2003 Free Software Foundation, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this software; see the file COPYING. If not, write to * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, * Boston, MA 02111-1307 USA * * As a special exception, the Free Software Foundation gives permission * for additional uses of the text contained in its release of GUILE. * * The exception is that, if you link the GUILE library with other files * to produce an executable, this does not by itself cause the * resulting executable to be covered by the GNU General Public License. * Your use of that executable is in no way restricted on account of * linking the GUILE library code into it. * * This exception does not however invalidate any other reasons why * the executable file might be covered by the GNU General Public License. * * This exception applies only to the code released by the * Free Software Foundation under the name GUILE. If you copy * code from other Free Software Foundation releases into a copy of * GUILE, as the General Public License permits, the exception does * not apply to the code that you add in this way. To avoid misleading * anyone as to the status of such modified files, you must delete * this exception notice from them. * * If you write modifications of your own for GUILE, it is your choice * whether to permit this exception to apply to your modifications. * If you do not wish that, delete this exception notice. */ #include "libguile/__scm.h" #ifdef __ia64__ #include <ucontext.h> extern unsigned long __libc_ia64_register_backing_store_base; #endif /* a continuation SCM is a non-immediate pointing to a heap cell with: word 0: bits 0-15: smob type tag: scm_tc16_continuation. bits 16-31: unused. word 1: malloc block containing an scm_t_contregs structure with a tail array of SCM_STACKITEM. the size of the array is stored in the num_stack_items field of the structure. */ extern scm_t_bits scm_tc16_continuation; typedef struct { SCM throw_value; jmp_buf jmpbuf; SCM dynenv; #ifdef __ia64__ ucontext_t ctx; void *backing_store; unsigned long backing_store_size; #endif /* __ia64__ */ SCM_STACKITEM *base; /* base of the live stack, before it was saved. */ size_t num_stack_items; /* size of the saved stack. */ unsigned long seq; /* dynamic root identifier. */ #ifdef DEBUG_EXTENSIONS /* the most recently created debug frame on the live stack, before it was saved. */ struct scm_t_debug_frame *dframe; #endif SCM_STACKITEM stack[1]; /* copied stack of size num_stack_items. */ } scm_t_contregs; #if (SCM_DEBUG_DEPRECATED == 0) # define scm_contregs scm_t_contregs #endif #define SCM_CONTINUATIONP(x) SCM_TYP16_PREDICATE (scm_tc16_continuation, x) #define SCM_CONTREGS(x) ((scm_t_contregs *) SCM_CELL_WORD_1 (x)) #define SCM_CONTINUATION_LENGTH(x) (SCM_CONTREGS (x)->num_stack_items) #define SCM_SET_CONTINUATION_LENGTH(x,n)\ (SCM_CONTREGS (x)->num_stack_items = (n)) #define SCM_JMPBUF(x) ((SCM_CONTREGS (x))->jmpbuf) #define SCM_DYNENV(x) ((SCM_CONTREGS (x))->dynenv) #define SCM_THROW_VALUE(x) ((SCM_CONTREGS (x))->throw_value) #define SCM_BASE(x) ((SCM_CONTREGS (x))->base) #define SCM_SEQ(x) ((SCM_CONTREGS (x))->seq) #define SCM_DFRAME(x) ((SCM_CONTREGS (x))->dframe) extern SCM scm_make_continuation (int *first); extern void scm_init_continuations (void); #endif /* CONTINUATIONSH */ /* Local Variables: c-file-style: "gnu" End: */