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-rw-r--r--ext/io/wait/wait.c237
1 files changed, 3 insertions, 234 deletions
diff --git a/ext/io/wait/wait.c b/ext/io/wait/wait.c
index f7a7508eeb..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 -
@@ -10,245 +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_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;
-}
-
-static int
-wait_mode_sym(VALUE mode)
-{
- if (mode == ID2SYM(rb_intern("r"))) {
- return RB_WAITFD_IN;
- }
- if (mode == ID2SYM(rb_intern("read"))) {
- return RB_WAITFD_IN;
- }
- if (mode == ID2SYM(rb_intern("readable"))) {
- return RB_WAITFD_IN;
- }
- if (mode == ID2SYM(rb_intern("w"))) {
- return RB_WAITFD_OUT;
- }
- if (mode == ID2SYM(rb_intern("write"))) {
- return RB_WAITFD_OUT;
- }
- if (mode == ID2SYM(rb_intern("writable"))) {
- return RB_WAITFD_OUT;
- }
- if (mode == ID2SYM(rb_intern("rw"))) {
- return RB_WAITFD_IN|RB_WAITFD_OUT;
- }
- if (mode == ID2SYM(rb_intern("read_write"))) {
- return RB_WAITFD_IN|RB_WAITFD_OUT;
- }
- if (mode == ID2SYM(rb_intern("readable_writable"))) {
- return RB_WAITFD_IN|RB_WAITFD_OUT;
- }
- rb_raise(rb_eArgError, "unsupported mode: %"PRIsVALUE, mode);
- return 0;
-}
-
-/*
- * call-seq:
- * io.wait(timeout = nil, mode = :read) -> IO, true or nil
- *
- * Waits until IO is readable or writable without blocking and returns
- * +self+, or +nil+ when times out.
- * Returns +true+ immediately when buffered data is available.
- * Optional parameter +mode+ is one of +:read+, +:write+, or
- * +:read_write+.
- */
-
-static VALUE
-io_wait_readwrite(int argc, VALUE *argv, VALUE io)
-{
- rb_io_t *fptr;
- struct timeval timerec;
- struct timeval *tv = NULL;
- int event = 0;
- int i;
-
- GetOpenFile(io, fptr);
- for (i = 0; i < argc; ++i) {
- if (SYMBOL_P(argv[i])) {
- event |= wait_mode_sym(argv[i]);
- }
- else {
- *(tv = &timerec) = rb_time_interval(argv[i]);
- }
- }
- /* rb_time_interval() and might_mode() might convert the argument */
- rb_io_check_closed(fptr);
- if (!event) event = RB_WAITFD_IN;
- if ((event & RB_WAITFD_IN) && rb_io_read_pending(fptr))
- return Qtrue;
- if (wait_for_single_fd(fptr, event, 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_readwrite, -1);
- rb_define_method(rb_cIO, "wait_readable", io_wait_readable, -1);
- rb_define_method(rb_cIO, "wait_writable", io_wait_writable, -1);
}
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