nobu	2010-11-09 07:30:20 +0900 (Tue, 09 Nov 2010)

  New Revision: 29728

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=29728

  Log:
    * error.c (rb_syserr_new): new function to make SystemCallError
      instance without errno.  [EXPERIMENTAL]
    * error.c (rb_syserr_fail, rb_mod_syserr_fail): ditto.

  Modified files:
    trunk/ChangeLog
    trunk/error.c
    trunk/include/ruby/ruby.h

Index: include/ruby/ruby.h
===================================================================
--- include/ruby/ruby.h	(revision 29727)
+++ include/ruby/ruby.h	(revision 29728)
@@ -1152,6 +1152,9 @@
 NORETURN(void rb_iter_break(void));
 NORETURN(void rb_exit(int));
 NORETURN(void rb_notimplement(void));
+VALUE rb_syserr_new(int, const char *);
+NORETURN(void rb_syserr_fail(int, const char*));
+NORETURN(void rb_mod_syserr_fail(VALUE, int, const char*));
 
 /* reports if `-W' specified */
 PRINTF_ARGS(void rb_warning(const char*, ...), 1, 2);
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 29727)
+++ ChangeLog	(revision 29728)
@@ -1,3 +1,10 @@
+Tue Nov  9 07:30:15 2010  Nobuyoshi Nakada  <nobu@r...>
+
+	* error.c (rb_syserr_new): new function to make SystemCallError
+	  instance without errno.  [EXPERIMENTAL]
+
+	* error.c (rb_syserr_fail, rb_mod_syserr_fail): ditto.
+
 Tue Nov  9 05:54:57 2010  Marc-Andre Lafortune  <ruby-core@m...>
 
 	* lib/*.rb: Remove unused variable warnings.
Index: error.c
===================================================================
--- error.c	(revision 29727)
+++ error.c	(revision 29728)
@@ -1532,18 +1532,29 @@
 make_errno_exc(const char *mesg)
 {
     int n = errno;
-    VALUE arg;
 
     errno = 0;
     if (n == 0) {
 	rb_bug("rb_sys_fail(%s) - errno == 0", mesg ? mesg : "");
     }
+    return rb_syserr_new(n, mesg);
+}
 
+VALUE
+rb_syserr_new(int n, const char *mesg)
+{
+    VALUE arg;
     arg = mesg ? rb_str_new2(mesg) : Qnil;
     return rb_class_new_instance(1, &arg, get_syserr(n));
 }
 
 void
+rb_syserr_fail(int e, const char *mesg)
+{
+    rb_exc_raise(rb_syserr_new(e, mesg));
+}
+
+void
 rb_sys_fail(const char *mesg)
 {
     rb_exc_raise(make_errno_exc(mesg));
@@ -1558,6 +1569,14 @@
 }
 
 void
+rb_mod_syserr_fail(VALUE mod, int e, const char *mesg)
+{
+    VALUE exc = rb_syserr_new(e, mesg);
+    rb_extend_object(exc, mod);
+    rb_exc_raise(exc);
+}
+
+void
 rb_sys_warning(const char *fmt, ...)
 {
     char buf[BUFSIZ];

--
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