* ports.h: #include <sys/types.h>, to get a definition for `off_t'.

[bpt/guile.git] / libguile / throw.h

diff --git a/libguile/throw.h b/libguile/throw.h
index 4df81d8..9485686 100644 (file)
--- a/libguile/throw.h
+++ b/libguile/throw.h
@@ -2,7 +2,7 @@
 
 #ifndef THROWH
 #define THROWH
-/*     Copyright (C) 1995,1996 Free Software Foundation, Inc.
+/*     Copyright (C) 1995,1996,1998 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
@@ -16,7 +16,8 @@
  * 
  * 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.
+ * 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.
@@ -40,18 +41,63 @@
  *
  * 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.  
- */
+ * If you do not wish that, delete this exception notice.  */
 \f
 
 #include "libguile/__scm.h"
 
 \f
 
-extern SCM scm_catch_apply SCM_P ((SCM tag, SCM proc, SCM a1, SCM args, SCM handler, int lazyp));
+typedef SCM (*scm_catch_body_t) SCM_P ((void *data));
+typedef SCM (*scm_catch_handler_t) SCM_P ((void *data,
+                                          SCM tag, SCM throw_args));
+
+extern SCM scm_internal_catch SCM_P ((SCM tag,
+                                     scm_catch_body_t body,
+                                     void *body_data,
+                                     scm_catch_handler_t handler,
+                                     void *handler_data));
+
+extern SCM scm_internal_lazy_catch SCM_P ((SCM tag,
+                                          scm_catch_body_t body,
+                                          void *body_data,
+                                          scm_catch_handler_t handler,
+                                          void *handler_data));
+
+extern SCM scm_internal_stack_catch SCM_P ((SCM tag,
+                                           scm_catch_body_t body,
+                                           void *body_data,
+                                           scm_catch_handler_t handler,
+                                           void *handler_data));
+
+/* The first argument to scm_body_thunk should be a pointer to one of
+   these.  See the implementation of catch in throw.c.  */
+struct scm_body_thunk_data
+{
+  /* The tag being caught.  We only use it to figure out what
+     arguments to pass to the body procedure; see scm_catch_thunk_body for
+     details.  */
+  SCM tag;
+
+  /* The Scheme procedure object constituting the catch body.
+     scm_body_by_proc invokes this.  */
+  SCM body_proc;
+};
+
+extern SCM scm_body_thunk SCM_P ((void *));
+
+
+extern SCM scm_handle_by_proc SCM_P ((void *, SCM, SCM));
+extern SCM scm_handle_by_proc_catching_all SCM_P ((void *, SCM, SCM));
+extern SCM scm_handle_by_message SCM_P ((void *, SCM, SCM));
+extern SCM scm_handle_by_message_noexit SCM_P ((void *, SCM, SCM));
+extern SCM scm_handle_by_throw SCM_P ((void *, SCM, SCM));
+extern int scm_exit_status SCM_P ((SCM args));
+
 extern SCM scm_catch SCM_P ((SCM tag, SCM thunk, SCM handler));
 extern SCM scm_lazy_catch SCM_P ((SCM tag, SCM thunk, SCM handler));
 extern SCM scm_ithrow SCM_P ((SCM key, SCM args, int noreturn));
+
 extern SCM scm_throw SCM_P ((SCM key, SCM args));
 extern void scm_init_throw SCM_P ((void));
 #endif  /* THROWH */