* eval_intern.h (rb_thread_raised_set): use generic flags.

* eval.c (rb_longjmp): clear all raised flags.

* eval.c (stack_check): leave clearing flag to rb_longjmp.

* gc.c (rb_memerror): use thread raised flag instead of static flag.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15756 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,13 @@
+Wed Mar 12 14:47:07 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* eval_intern.h (rb_thread_raised_set): use generic flags.
+
+	* eval.c (rb_longjmp): clear all raised flags.
+
+	* eval.c (stack_check): leave clearing flag to rb_longjmp.
+
+	* gc.c (rb_memerror): use thread raised flag instead of static flag.
+
 Tue Mar 11 23:38:39 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* array.c (rb_ary_combination): argument check before creating

common.mk

@@ -473,7 +473,7 @@ gc.$(OBJEXT): {$(VPATH)}gc.c {$(VPATH)}ruby.h {$(VPATH)}config.h \
   {$(VPATH)}regex.h {$(VPATH)}oniguruma.h {$(VPATH)}io.h \
   {$(VPATH)}encoding.h {$(VPATH)}vm_core.h {$(VPATH)}debug.h \
   {$(VPATH)}vm_opts.h {$(VPATH)}id.h {$(VPATH)}thread_$(THREAD_MODEL).h \
-  {$(VPATH)}gc.h
+  {$(VPATH)}gc.h {$(VPATH)}eval_intern.h
 hash.$(OBJEXT): {$(VPATH)}hash.c {$(VPATH)}ruby.h {$(VPATH)}config.h \
   {$(VPATH)}defines.h {$(VPATH)}missing.h {$(VPATH)}intern.h \
   {$(VPATH)}st.h {$(VPATH)}util.h {$(VPATH)}signal.h

eval.c

@@ -715,7 +715,7 @@ rb_longjmp(int tag, VALUE mesg)
 			0 /* TODO: id */, 0 /* TODO: klass */);
     }
 
-    rb_thread_reset_raised(th);
+    rb_thread_raised_clear(th);
     JUMP_TAG(tag);
 }
 
@@ -1243,16 +1243,9 @@ stack_check(void)
 {
     rb_thread_t *th = GET_THREAD();
 
-    if (!rb_thread_stack_overflowing_p(th) && ruby_stack_check()) {
-	int state;
-	rb_thread_set_stack_overflow(th);
-	PUSH_TAG();
-	if ((state = EXEC_TAG()) == 0) {
-	    rb_exc_raise(sysstack_error);
-	}
-	POP_TAG();
-	rb_thread_reset_stack_overflow(th);
-	JUMP_TAG(state);
+    if (!rb_thread_raised_p(th, RAISED_STACKOVERFLOW) && ruby_stack_check()) {
+	rb_thread_raised_set(th, RAISED_STACKOVERFLOW);
+	rb_exc_raise(sysstack_error);
     }
 }
 

eval_intern.h

@@ -195,16 +195,17 @@ while (0)
 void rb_thread_cleanup(void);
 void rb_thread_wait_other_threads(void);
 
-#define RAISED_EXCEPTION     1
-#define RAISED_STACKOVERFLOW 2
+enum {
+    RAISED_EXCEPTION = 1,
+    RAISED_STACKOVERFLOW,
+    RAISED_NOMEMORY,
+};
 int rb_thread_set_raised(rb_thread_t *th);
 int rb_thread_reset_raised(rb_thread_t *th);
-#define rb_thread_set_stack_overflow(th) \
-    ((th)->raised_flag |= RAISED_STACKOVERFLOW)
-#define rb_thread_reset_stack_overflow(th) \
-    ((th)->raised_flag &= ~RAISED_STACKOVERFLOW)
-#define rb_thread_stack_overflowing_p(th) \
-    (((th)->raised_flag & RAISED_STACKOVERFLOW) != 0)
+#define rb_thread_raised_set(th, f)   ((th)->raised_flag |= (f))
+#define rb_thread_raised_reset(th, f) ((th)->raised_flag &= ~(f))
+#define rb_thread_raised_p(th, f)     (((th)->raised_flag & (f)) != 0)
+#define rb_thread_raised_clear(th)    ((th)->raised_flag = 0)
 
 VALUE rb_f_eval(int argc, VALUE *argv, VALUE self);
 VALUE rb_make_exception(int argc, VALUE *argv);

gc.c

@@ -18,6 +18,7 @@
 #include "ruby/re.h"
 #include "ruby/io.h"
 #include "ruby/util.h"
+#include "eval_intern.h"
 #include "vm_core.h"
 #include "gc.h"
 #include <stdio.h>
@@ -190,13 +191,13 @@ rb_global_variable(VALUE *var)
 void
 rb_memerror(void)
 {
-    static int recurse = 0;
-
-    if (!nomem_error || (recurse > 0 && rb_safe_level() < 4)) {
+    rb_thread_t *th = GET_THREAD();
+    if (!nomem_error ||
+	(rb_thread_raised_p(th, RAISED_NOMEMORY) && rb_safe_level() < 4)) {
 	fprintf(stderr, "[FATAL] failed to allocate memory\n");
 	exit(1);
     }
-    recurse++;
+    rb_thread_raised_set(th, RAISED_NOMEMORY);
     rb_exc_raise(nomem_error);
 }