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f5710d53b1
SCM_SMOB_FLAGS and SCM_SET_SMOB_FLAGS instead of accessing the zeroth word directly. Use SCM_SMOB_PREDICATE as appropriate.
126 lines
3.9 KiB
C
126 lines
3.9 KiB
C
/* classes: h_files */
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#ifndef SCM_ROOT_H
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#define SCM_ROOT_H
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/* Copyright (C) 1996,1998,2000,2001, 2002 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; 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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#include "libguile/__scm.h"
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#include "libguile/debug.h"
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#include "libguile/throw.h"
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#define scm_flo0 scm_sys_protects[0]
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#define scm_listofnull scm_sys_protects[1]
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#define scm_nullvect scm_sys_protects[2]
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#define scm_nullstr scm_sys_protects[3]
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#define scm_keyword_obarray scm_sys_protects[4]
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#define scm_stand_in_procs scm_sys_protects[5]
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#define scm_object_whash scm_sys_protects[6]
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#define scm_permobjs scm_sys_protects[7]
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#define scm_asyncs scm_sys_protects[8]
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#define scm_protects scm_sys_protects[9]
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#define scm_properties_whash scm_sys_protects[10]
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#define scm_gc_registered_roots scm_sys_protects[11]
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#define scm_source_whash scm_sys_protects[12]
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#define SCM_NUM_PROTECTS 13
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SCM_API SCM scm_sys_protects[];
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SCM_API scm_t_bits scm_tc16_root;
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#define SCM_ROOTP(obj) SCM_SMOB_PREDICATE (scm_tc16_root, (obj))
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#define SCM_ROOT_STATE(root) ((scm_root_state *) SCM_SMOB_DATA (root))
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typedef struct scm_root_state
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{
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SCM_STACKITEM * stack_base;
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jmp_buf save_regs_gc_mark;
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int errjmp_bad;
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SCM rootcont;
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SCM dynwinds;
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/* It is very inefficient to have this variable in the root state. */
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scm_t_debug_frame *last_debug_frame;
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SCM progargs; /* vestigial */
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SCM exitval; /* vestigial */
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SCM cur_inp;
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SCM cur_outp;
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SCM cur_errp;
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SCM cur_loadp;
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SCM fluids;
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SCM handle; /* The root object for this root state */
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SCM parent; /* The parent root object */
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SCM active_asyncs; /* The thunks to be run at the next
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safe point */
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SCM signal_asyncs; /* The pre-queued cells for signal handlers.
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*/
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unsigned int block_asyncs; /* Non-zero means that asyncs should
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not be run. */
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unsigned int pending_asyncs; /* Non-zero means that asyncs might be pending.
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*/
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} scm_root_state;
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#define scm_stack_base (scm_root->stack_base)
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#define scm_save_regs_gc_mark (scm_root->save_regs_gc_mark)
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#define scm_errjmp_bad (scm_root->errjmp_bad)
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#define scm_rootcont (scm_root->rootcont)
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#define scm_dynwinds (scm_root->dynwinds)
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#define scm_progargs (scm_root->progargs)
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#define scm_last_debug_frame (scm_root->last_debug_frame)
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#define scm_exitval (scm_root->exitval)
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#define scm_cur_inp (scm_root->cur_inp)
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#define scm_cur_outp (scm_root->cur_outp)
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#define scm_cur_errp (scm_root->cur_errp)
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#define scm_cur_loadp (scm_root->cur_loadp)
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#define scm_root ((scm_root_state *) SCM_THREAD_LOCAL_DATA)
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#define scm_set_root(new_root) SCM_SET_THREAD_LOCAL_DATA (new_root)
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SCM_API SCM scm_make_root (SCM parent);
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SCM_API SCM scm_internal_cwdr (scm_t_catch_body body,
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void *body_data,
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scm_t_catch_handler handler,
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void *handler_data,
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SCM_STACKITEM *stack_start);
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SCM_API SCM scm_call_with_dynamic_root (SCM thunk, SCM handler);
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SCM_API SCM scm_dynamic_root (void);
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SCM_API SCM scm_apply_with_dynamic_root (SCM proc, SCM a1, SCM args, SCM handler);
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SCM_API void scm_init_root (void);
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#endif /* SCM_ROOT_H */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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