1 files changed, 3 insertions, 163 deletions

diff --git a/ext/io/wait/wait.c b/ext/io/wait/wait.c
index 99435460d4..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 -
@@ -10,174 +11,13 @@
 
 **********************************************************************/
 
-#include "ruby.h"
-#include "ruby/io.h"
-
-#include <sys/types.h>
-#if defined(HAVE_UNISTD_H) && (defined(__sun))
-#include <unistd.h>
-#endif
-#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_readable _((int argc, VALUE *argv, VALUE io));
-static VALUE io_wait_writable _((int argc, VALUE *argv, VALUE io));
-void Init_wait _((void));
-
-static struct timeval *
-get_timeout(int argc, VALUE *argv, struct timeval *timerec)
-{
-    VALUE timeout = Qnil;
-    rb_check_arity(argc, 0, 1);
-    if (!argc || NIL_P(timeout = argv[0])) {
-	return NULL;
-    }
-    else {
-	*timerec = rb_time_interval(timeout);
-	return timerec;
-    }
-}
-
-static int
-wait_for_single_fd(rb_io_t *fptr, int events, struct timeval *tv)
-{
-    int i = rb_wait_for_single_fd(fptr->fd, events, tv);
-    if (i < 0)
-	rb_sys_fail(0);
-    rb_io_check_closed(fptr);
-    return (i & events);
-}
-
-/*
- * call-seq:
- *   io.nread -> int
- *
- * Returns number of bytes that can be read without blocking.
- * Returns zero if no information available.
- */
-
-static VALUE
-io_nread(VALUE io)
-{
-    rb_io_t *fptr;
-    int len;
-    ioctl_arg n;
-
-    GetOpenFile(io, fptr);
-    rb_io_check_readable(fptr);
-    len = rb_io_read_pending(fptr);
-    if (len > 0) return INT2FIX(len);
-    if (!FIONREAD_POSSIBLE_P(fptr->fd)) return INT2FIX(0);
-    if (ioctl(fptr->fd, FIONREAD, &n)) return INT2FIX(0);
-    if (n > 0) return ioctl_arg2num(n);
-    return INT2FIX(0);
-}
-
-/*
- * call-seq:
- *   io.ready? -> true, false or nil
- *
- * Returns true if input available without blocking, or false.
- * Returns nil if no information available.
- */
-
-static VALUE
-io_ready_p(VALUE io)
-{
-    rb_io_t *fptr;
-    struct timeval tv = {0, 0};
-
-    GetOpenFile(io, fptr);
-    rb_io_check_readable(fptr);
-    if (rb_io_read_pending(fptr)) return Qtrue;
-    if (wait_for_single_fd(fptr, RB_WAITFD_IN, &tv))
-	return Qtrue;
-    return Qfalse;
-}
-
-/*
- * call-seq:
- *   io.wait          -> IO, true or nil
- *   io.wait(timeout) -> IO, true or nil
- *   io.wait_readable          -> IO, true or nil
- *   io.wait_readable(timeout) -> IO, true or nil
- *
- * Waits until IO is readable without blocking and returns +self+, or
- * +nil+ when times out.
- * Returns +true+ immediately when buffered data is available.
- */
-
-static VALUE
-io_wait_readable(int argc, VALUE *argv, VALUE io)
-{
-    rb_io_t *fptr;
-    struct timeval timerec;
-    struct timeval *tv;
-
-    GetOpenFile(io, fptr);
-    rb_io_check_readable(fptr);
-    tv = get_timeout(argc, argv, &timerec);
-    if (rb_io_read_pending(fptr)) return Qtrue;
-    if (wait_for_single_fd(fptr, RB_WAITFD_IN, tv)) {
-	return io;
-    }
-    return Qnil;
-}
-
-/*
- * call-seq:
- *   io.wait_writable          -> IO
- *   io.wait_writable(timeout) -> IO or nil
- *
- * Waits until IO is writable without blocking and returns +self+ or
- * +nil+ when times out.
- */
-static VALUE
-io_wait_writable(int argc, VALUE *argv, VALUE io)
-{
-    rb_io_t *fptr;
-    struct timeval timerec;
-    struct timeval *tv;
-
-    GetOpenFile(io, fptr);
-    rb_io_check_writable(fptr);
-    tv = get_timeout(argc, argv, &timerec);
-    if (wait_for_single_fd(fptr, RB_WAITFD_OUT, tv)) {
-	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(void)
 {
-    rb_define_method(rb_cIO, "nread", io_nread, 0);
-    rb_define_method(rb_cIO, "ready?", io_ready_p, 0);
-    rb_define_method(rb_cIO, "wait", io_wait_readable, -1);
-    rb_define_method(rb_cIO, "wait_readable", io_wait_readable, -1);
-    rb_define_method(rb_cIO, "wait_writable", io_wait_writable, -1);
 }