mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-04-30 03:40:34 +02:00
127 lines
3.9 KiB
C
127 lines
3.9 KiB
C
/* classes: h_files */
|
||
|
||
#ifndef SCM_ROOT_H
|
||
#define SCM_ROOT_H
|
||
|
||
/* Copyright (C) 1996,1998,2000,2001, 2002 Free Software Foundation, Inc.
|
||
*
|
||
* This library is free software; you can redistribute it and/or
|
||
* modify it under the terms of the GNU Lesser General Public
|
||
* License as published by the Free Software Foundation; either
|
||
* version 2.1 of the License, or (at your option) any later version.
|
||
*
|
||
* This library 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
|
||
* Lesser General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU Lesser General Public
|
||
* License along with this library; if not, write to the Free Software
|
||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||
*/
|
||
|
||
|
||
|
||
#include "libguile/__scm.h"
|
||
#include "libguile/debug.h"
|
||
#include "libguile/throw.h"
|
||
|
||
|
||
|
||
#define scm_flo0 scm_sys_protects[0]
|
||
#define scm_listofnull scm_sys_protects[1]
|
||
#define scm_undefineds scm_sys_protects[2]
|
||
#define scm_nullvect scm_sys_protects[3]
|
||
#define scm_nullstr scm_sys_protects[4]
|
||
#define scm_keyword_obarray scm_sys_protects[5]
|
||
#define scm_stand_in_procs scm_sys_protects[6]
|
||
#define scm_object_whash scm_sys_protects[7]
|
||
#define scm_permobjs scm_sys_protects[8]
|
||
#define scm_asyncs scm_sys_protects[9]
|
||
#define scm_protects scm_sys_protects[10]
|
||
#define scm_properties_whash scm_sys_protects[11]
|
||
#define scm_gc_registered_roots scm_sys_protects[12]
|
||
#define scm_source_whash scm_sys_protects[13]
|
||
#define SCM_NUM_PROTECTS 14
|
||
|
||
SCM_API SCM scm_sys_protects[];
|
||
|
||
|
||
|
||
SCM_API scm_t_bits scm_tc16_root;
|
||
|
||
#define SCM_ROOTP(obj) SCM_TYP16_PREDICATE (scm_tc16_root, obj)
|
||
#define SCM_ROOT_STATE(root) ((scm_root_state *) SCM_CELL_WORD_1 (root))
|
||
|
||
typedef struct scm_root_state
|
||
{
|
||
SCM_STACKITEM * stack_base;
|
||
jmp_buf save_regs_gc_mark;
|
||
int errjmp_bad;
|
||
|
||
SCM rootcont;
|
||
SCM dynwinds;
|
||
|
||
/* It is very inefficient to have this variable in the root state. */
|
||
scm_t_debug_frame *last_debug_frame;
|
||
|
||
SCM progargs; /* vestigial */
|
||
SCM exitval; /* vestigial */
|
||
|
||
SCM cur_inp;
|
||
SCM cur_outp;
|
||
SCM cur_errp;
|
||
SCM cur_loadp;
|
||
|
||
SCM fluids;
|
||
|
||
SCM handle; /* The root object for this root state */
|
||
SCM parent; /* The parent root object */
|
||
|
||
SCM active_asyncs; /* The thunks to be run at the next
|
||
safe point */
|
||
SCM signal_asyncs; /* The pre-queued cells for signal handlers.
|
||
*/
|
||
unsigned int block_asyncs; /* Non-zero means that asyncs should
|
||
not be run. */
|
||
unsigned int pending_asyncs; /* Non-zero means that asyncs might be pending.
|
||
*/
|
||
} scm_root_state;
|
||
|
||
#define scm_stack_base (scm_root->stack_base)
|
||
#define scm_save_regs_gc_mark (scm_root->save_regs_gc_mark)
|
||
#define scm_errjmp_bad (scm_root->errjmp_bad)
|
||
|
||
#define scm_rootcont (scm_root->rootcont)
|
||
#define scm_dynwinds (scm_root->dynwinds)
|
||
#define scm_progargs (scm_root->progargs)
|
||
#define scm_last_debug_frame (scm_root->last_debug_frame)
|
||
#define scm_exitval (scm_root->exitval)
|
||
#define scm_cur_inp (scm_root->cur_inp)
|
||
#define scm_cur_outp (scm_root->cur_outp)
|
||
#define scm_cur_errp (scm_root->cur_errp)
|
||
#define scm_cur_loadp (scm_root->cur_loadp)
|
||
|
||
#define scm_root ((scm_root_state *) SCM_THREAD_LOCAL_DATA)
|
||
#define scm_set_root(new_root) SCM_SET_THREAD_LOCAL_DATA (new_root)
|
||
|
||
|
||
|
||
SCM_API SCM scm_make_root (SCM parent);
|
||
SCM_API SCM scm_internal_cwdr (scm_t_catch_body body,
|
||
void *body_data,
|
||
scm_t_catch_handler handler,
|
||
void *handler_data,
|
||
SCM_STACKITEM *stack_start);
|
||
SCM_API SCM scm_call_with_dynamic_root (SCM thunk, SCM handler);
|
||
SCM_API SCM scm_dynamic_root (void);
|
||
SCM_API SCM scm_apply_with_dynamic_root (SCM proc, SCM a1, SCM args, SCM handler);
|
||
SCM_API void scm_init_root (void);
|
||
|
||
#endif /* SCM_ROOT_H */
|
||
|
||
/*
|
||
Local Variables:
|
||
c-file-style: "gnu"
|
||
End:
|
||
*/
|