1 files changed, 4 insertions, 122 deletions

diff --git a/ext/io/wait/wait.c b/ext/io/wait/wait.c
index 42f5e8fc48..f7575191fe 100644
--- a/ext/io/wait/wait.c
+++ b/ext/io/wait/wait.c
@@ -1,3 +1,4 @@
+/* -*- c-file-style: "ruby"; indent-tabs-mode: t -*- */
 /**********************************************************************
 
   io/wait.c -
@@ -10,132 +11,13 @@
 
 **********************************************************************/
 
-#include "ruby.h"
-#include "ruby/io.h"
-
-#include <sys/types.h>
-#if defined(HAVE_SYS_IOCTL_H)
-#include <sys/ioctl.h>
-#endif
-#if defined(FIONREAD_HEADER)
-#include FIONREAD_HEADER
-#endif
-
-#ifdef HAVE_RB_W32_IOCTLSOCKET
-#define ioctl ioctlsocket
-#define ioctl_arg u_long
-#define ioctl_arg2num(i) ULONG2NUM(i)
-#else
-#define ioctl_arg int
-#define ioctl_arg2num(i) INT2NUM(i)
-#endif
-
-#ifdef HAVE_RB_W32_IS_SOCKET
-#define FIONREAD_POSSIBLE_P(fd) rb_w32_is_socket(fd)
-#else
-#define FIONREAD_POSSIBLE_P(fd) ((void)(fd),Qtrue)
-#endif
-
-static VALUE io_ready_p _((VALUE io));
-static VALUE io_wait _((int argc, VALUE *argv, VALUE io));
-void Init_wait _((void));
-
-EXTERN struct timeval rb_time_interval _((VALUE time));
-
-/*
- * call-seq:
- *   io.ready? -> true, false or nil
- *
- * Returns non-nil if input available without blocking, or nil.
- */
-
-static VALUE
-io_ready_p(VALUE io)
-{
-    rb_io_t *fptr;
-    ioctl_arg n;
-
-    GetOpenFile(io, fptr);
-    rb_io_check_readable(fptr);
-    if (rb_io_read_pending(fptr)) return Qtrue;
-    if (!FIONREAD_POSSIBLE_P(fptr->fd)) return Qfalse;
-    if (ioctl(fptr->fd, FIONREAD, &n)) rb_sys_fail(0);
-    if (n > 0) return ioctl_arg2num(n);
-    return Qnil;
-}
-
-struct wait_readable_arg {
-    rb_fdset_t fds;
-    struct timeval *timeout;
-};
-
-#ifdef HAVE_RB_FD_INIT
-static VALUE
-wait_readable(VALUE p)
-{
-    struct wait_readable_arg *arg = (struct wait_readable_arg *)p;
-    rb_fdset_t *fds = &arg->fds;
-
-    return (VALUE)rb_thread_select(rb_fd_max(fds), rb_fd_ptr(fds), NULL, NULL, arg->timeout);
-}
-#endif
-
-/*
- * call-seq:
- *   io.wait          -> IO, true, false or nil
- *   io.wait(timeout) -> IO, true, false or nil
- *
- * Waits until input is available or times out and returns self or nil when
- * EOF is reached.
- */
-
-static VALUE
-io_wait(int argc, VALUE *argv, VALUE io)
-{
-    rb_io_t *fptr;
-    struct wait_readable_arg arg;
-    int fd, i;
-    ioctl_arg n;
-    VALUE timeout;
-    struct timeval timerec;
-
-    GetOpenFile(io, fptr);
-    rb_io_check_readable(fptr);
-    rb_scan_args(argc, argv, "01", &timeout);
-    if (NIL_P(timeout)) {
-	arg.timeout = 0;
-    }
-    else {
-	timerec = rb_time_interval(timeout);
-	arg.timeout = &timerec;
-    }
-
-    if (rb_io_read_pending(fptr)) return Qtrue;
-    if (!FIONREAD_POSSIBLE_P(fptr->fd)) return Qfalse;
-    fd = fptr->fd;
-    rb_fd_init(&arg.fds);
-    rb_fd_set(fd, &arg.fds);
-#ifdef HAVE_RB_FD_INIT
-    i = (int)rb_ensure(wait_readable, (VALUE)&arg,
-		       (VALUE (*)_((VALUE)))rb_fd_term, (VALUE)&arg.fds);
-#else
-    i = rb_thread_select(fd + 1, rb_fd_ptr(&arg.fds), NULL, NULL, arg.timeout);
-#endif
-    if (i < 0)
-	rb_sys_fail(0);
-    rb_io_check_closed(fptr);
-    if (ioctl(fptr->fd, FIONREAD, &n)) rb_sys_fail(0);
-    if (n > 0) return io;
-    return Qnil;
-}
+#include "ruby.h"		/* abi_version */
 
 /*
- * IO wait methods
+ * IO wait methods are built in ruby now, just for backward compatibility.
  */
 
 void
-Init_wait()
+Init_wait(void)
 {
-    rb_define_method(rb_cIO, "ready?", io_ready_p, 0);
-    rb_define_method(rb_cIO, "wait", io_wait, -1);
 }