0.8.6.28:

[sbcl.git] / src / runtime / interrupt.h

diff --git a/src/runtime/interrupt.h b/src/runtime/interrupt.h
index f71a177..cb71475 100644 (file)
--- a/src/runtime/interrupt.h
+++ b/src/runtime/interrupt.h
@@ -9,10 +9,6 @@
  * files for more information.
  */
 
-/*
- * $Header$
- */
-
 #if !defined(_INCLUDE_INTERRUPT_H_)
 #define _INCLUDE_INTERRUPT_H_
 
@@ -22,28 +18,48 @@
  *
  * Note: In CMU CL, this was 4096, but there was no explanation given,
  * and it's hard to see why we'd need that many nested interrupts, so
- * I've scaled it back to see what happens. -- WHN 20000730 */
-#define MAX_INTERRUPTS 256
+ * I've scaled it back (to 256) to see what happens. -- WHN 20000730 
 
-extern os_context_t *lisp_interrupt_contexts[MAX_INTERRUPTS];
+ * Nothing happened, so let's creep it back a bit further -- dan 20030411 */
+#define MAX_INTERRUPTS 32
 
 union interrupt_handler {
-       lispobj lisp;
-       void (*c)(int, siginfo_t*, void*);
+    lispobj lisp;
+    void (*c)(int, siginfo_t*, void*);
+};
+
+struct interrupt_data {
+    void (*interrupt_low_level_handlers[NSIG]) (int, siginfo_t*, void*) ;
+    union interrupt_handler interrupt_handlers[NSIG];
+
+    /* signal information for pending signal.  pending_signal=0 when there 
+     * is no pending signal. */
+    void (*pending_handler) (int, siginfo_t*, void*) ;
+    int pending_signal ;
+    siginfo_t pending_info;
+    sigset_t pending_mask;
 };
 
-extern void interrupt_init(void);
+
+extern void interrupt_init();
 extern void fake_foreign_function_call(os_context_t* context);
 extern void undo_fake_foreign_function_call(os_context_t* context);
 extern void interrupt_handle_now(int, siginfo_t*, void*);
 extern void interrupt_handle_pending(os_context_t*);
 extern void interrupt_internal_error(int, siginfo_t*, os_context_t*,
                                     boolean continuable);
+extern boolean handle_control_stack_guard_triggered(os_context_t *,void *);
 extern boolean interrupt_maybe_gc(int, siginfo_t*, void*);
-extern void interrupt_install_low_level_handler (int signal,
-                                                void handler(int,
-                                                             siginfo_t*,
-                                                             void*));
+#ifdef LISP_FEATURE_SB_THREAD
+extern void interrupt_thread_handler(int, siginfo_t*, void*);
+extern void sig_stop_for_gc_handler(int, siginfo_t*, void*);
+extern void thread_exit_handler(int, siginfo_t*, void*);
+#endif
+extern void undoably_install_low_level_interrupt_handler (int signal,
+                                                         void
+                                                         handler(int,
+                                                                 siginfo_t*,
+                                                                 void*));
 extern unsigned long install_handler(int signal,
                                     void handler(int, siginfo_t*, void*));
 
@@ -58,4 +74,6 @@ void sigaddset_blockable(sigset_t *s);
  * signal(..) handlers have another, and attempting to represent them
  * "cleanly" with union types is in fact a mess. */
 #define ARE_SAME_HANDLER(x, y) ((void*)(x) == (void*)(y))
+
 #endif
+