* error.c (syserr_initialize): prohibit specifying errno for

  subclasses of SystemCallError.  in addition, if initialize is
  called for SystenCallError instance, its class be changed.
  [ruby-dev:20257]

* gc.c (run_final): to protect thread context switch, finalizers
  are wrapped in DEFER_INTS/ENABLE_INTS.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3839 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,13 @@
+Wed May 21 17:44:16 2003  Yukihiro Matsumoto  <[email protected]>
+
+	* error.c (syserr_initialize): prohibit specifying errno for
+	  subclasses of SystemCallError.  in addition, if initialize is
+	  called for SystenCallError instance, its class be changed.
+	  [ruby-dev:20257]
+
+	* gc.c (run_final): to protect thread context switch, finalizers
+	  are wrapped in DEFER_INTS/ENABLE_INTS.
+
 Wed May 21 13:26:08 2003  Nobuyoshi Nakada  <[email protected]>
 
 	* lib/optparse.rb: get rid of warnings.

MANIFEST

@@ -184,6 +184,7 @@ lib/observer.rb
 lib/open-uri.rb
 lib/open3.rb
 lib/optparse.rb
+lib/optparse/date.rb
 lib/optparse/shellwords.rb
 lib/optparse/time.rb
 lib/optparse/uri.rb

error.c

@@ -541,21 +541,29 @@ syserr_initialize(argc, argv, self)
 #endif
     char *err;
     char *buf;
-    VALUE error, mesg;
+    VALUE mesg, error;
     VALUE klass = rb_obj_class(self);
 
-    rb_scan_args(argc, argv, klass == rb_eSystemCallError ? "11" : "02",
-		 &mesg, &error);
-    if (argc == 1 && FIXNUM_P(mesg)) {
-	error = mesg;
-	mesg = Qnil;
+    if (klass == rb_eSystemCallError) {
+	rb_scan_args(argc, argv, "11", &mesg, &error);
+	if (argc == 1 && FIXNUM_P(mesg)) {
+	    error = mesg; mesg = Qnil;
+	}
+	if (!NIL_P(error) && st_lookup(syserr_tbl, NUM2LONG(error), &klass)) {
+	    /* change class */
+	    if (TYPE(self) != T_OBJECT) { /* insurance to avoid type crash */
+		rb_raise(rb_eTypeError, "invalid instance type");
+	    }
+	    RBASIC(self)->klass = klass;
+	}
     }
-    if (klass != rb_eSystemCallError && NIL_P(error)) {
+    else {
+	rb_scan_args(argc, argv, "01", &mesg);
 	error = rb_const_get_at(klass, rb_intern("Errno"));
     }
-    err = strerror(NUM2LONG(error));
-    if (!err) err = "Unknown error";
-    if (RTEST(mesg)) {
+    if (!NIL_P(error)) err = strerror(NUM2LONG(error));
+    else err = "unknown error";
+    if (!NIL_P(mesg)) {
 	StringValue(mesg);
 	buf = ALLOCA_N(char, strlen(err)+RSTRING(mesg)->len+4);
 	sprintf(buf, "%s - %s", err, RSTRING(mesg)->ptr);
@@ -564,7 +572,6 @@ syserr_initialize(argc, argv, self)
     else {
 	mesg = rb_str_new2(err);
     }
-
     exc_initialize(1, &mesg, self);
     rb_iv_set(self, "errno", error);
     return self;

eval.c

@@ -7982,7 +7982,6 @@ rb_thread_save_context(th)
     th->stk_pos = (rb_gc_stack_start<pos)?rb_gc_stack_start
 				         :rb_gc_stack_start - len;
     if (len > th->stk_max) {
-	rb_gc();
 	REALLOC_N(th->stk_ptr, VALUE, len);
 	th->stk_max = len;
     }

gc.c

@@ -1522,6 +1522,7 @@ run_final(obj)
     int status;
     VALUE args[2], table;
 
+    DEFER_INTS;
     args[1] = rb_ary_new3(1, rb_obj_id(obj)); /* make obj into id */
     for (i=0; i<RARRAY(finalizers)->len; i++) {
 	args[0] = RARRAY(finalizers)->ptr[i];
@@ -1533,6 +1534,7 @@ run_final(obj)
 	    rb_protect((VALUE(*)_((VALUE)))run_single_final, (VALUE)args, &status);
 	}
     }
+    ENABLE_INTS;
 }
 
 void

lib/delegate.rb

@@ -77,7 +77,7 @@ def __setobj__(obj)
 def DelegateClass(superclass)
   klass = Class.new
   methods = superclass.public_instance_methods(true)
-  methods -= ::Kernel.public_instance_methods
+  methods -= ::Kernel.public_instance_methods(false)
   methods |= ["to_s","to_a","inspect","==","=~","==="]
   klass.module_eval <<-EOS
   def initialize(obj)