-/* classes: h_files */
-
-#ifndef ROOTH
-#define ROOTH
-
-/* Copyright (C) 1996 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, 675 Mass Ave, Cambridge, MA 02139, 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.
- */
-\f
-
-\f
-
-#include <libguile/__scm.h>
-
-\f
-
-#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_symhash scm_sys_protects[5]
-#define scm_weak_symhash scm_sys_protects[6]
-#define scm_symhash_vars scm_sys_protects[7]
-#define scm_kw_obarray scm_sys_protects[8]
-#define scm_type_obj_list scm_sys_protects[9]
-#define scm_first_type scm_sys_protects[10]
-#define scm_stand_in_procs scm_sys_protects[11]
-#define scm_object_whash scm_sys_protects[12]
-#define scm_permobjs scm_sys_protects[13]
-#define scm_asyncs scm_sys_protects[14]
-#ifdef DEBUG_EXTENSIONS
-#define scm_source_whash scm_sys_protects[15]
-#define SCM_NUM_PROTECTS 16
-#else
-#define SCM_NUM_PROTECTS 15
-#endif
-
-extern SCM scm_sys_protects[];
-
-\f
-
-struct scm_root_state
-{
- SCM_STACKITEM * stack_base;
- jmp_buf save_regs_gc_mark;
- int errjmp_bad;
-
- SCM rootcont;
- SCM dynwinds;
- SCM continuation_stack;
- SCM continuation_stack_ptr;
-
- SCM progargs; /* vestigial */
- SCM exitval; /* vestigial */
-
- SCM cur_inp;
- SCM cur_outp;
- SCM cur_errp;
- SCM def_inp;
- SCM def_outp;
- SCM def_errp;
-
- SCM system_transformer;
- SCM top_level_lookup_thunk_var;
-};
-
-#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_continuation_stack (scm_root->continuation_stack)
-#define scm_continuation_stack_ptr (scm_root->continuation_stack_ptr)
-#define scm_progargs (scm_root->progargs)
-#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_def_inp (scm_root->def_inp)
-#define scm_def_outp (scm_root->def_outp)
-#define scm_def_errp (scm_root->def_errp)
-#define scm_top_level_lookup_thunk_var (scm_root->top_level_lookup_thunk_var)
-#define scm_system_transformer (scm_root->system_transformer)
-
-
-extern struct scm_root_state * scm_root;
-
-\f
-
-
-#ifdef __STDC__
-extern SCM scm_call_catching_errors (SCM (*thunk)(), SCM (*err_filter)(), void * closure);
-
-#else /* STDC */
-extern SCM scm_call_catching_errors ();
-
-#endif /* STDC */
-
-
-
-
-
-
-#endif /* ROOTH */
+/* 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
+ */
+
+\f
+
+#include "libguile/__scm.h"
+#include "libguile/debug.h"
+#include "libguile/throw.h"
+
+\f
+
+#define scm_flo0 scm_sys_protects[0]
+#define scm_listofnull scm_sys_protects[1]
+#define scm_nullvect scm_sys_protects[2]
+#define scm_nullstr scm_sys_protects[3]
+#define scm_keyword_obarray scm_sys_protects[4]
+#define scm_stand_in_procs scm_sys_protects[5]
+#define scm_object_whash scm_sys_protects[6]
+#define scm_permobjs scm_sys_protects[7]
+#define scm_asyncs scm_sys_protects[8]
+#define scm_protects scm_sys_protects[9]
+#define scm_properties_whash scm_sys_protects[10]
+#define scm_gc_registered_roots scm_sys_protects[11]
+#define scm_source_whash scm_sys_protects[12]
+#define SCM_NUM_PROTECTS 13
+
+SCM_API SCM scm_sys_protects[];
+
+\f
+
+SCM_API scm_t_bits scm_tc16_root;
+
+#define SCM_ROOTP(obj) SCM_SMOB_PREDICATE (scm_tc16_root, (obj))
+#define SCM_ROOT_STATE(root) ((scm_root_state *) SCM_SMOB_DATA (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)
+
+\f
+
+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:
+*/