From 0533885ae22a658fb356884caab862296ac8f0eb Mon Sep 17 00:00:00 2001
From: knu <knu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 24 Feb 2007 08:00:24 +0000
Subject: * win32/win32.c (set_pioinfo_extra): new function for VC++8 SP1  
 workaround. [ruby-core:10259]

* win32/win32.c (NtInitialize): call above function.

* signal.c (sighandler): need to tell to be interrupted to main
  context when handler is installed.

* win32/win32.[ch] (rb_win32_interrupted): new function to listen
  interrupt.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_6@11855 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 win32/win32.c | 38 ++++++++++++++++++++++++++++++++++++--
 1 file changed, 36 insertions(+), 2 deletions(-)

(limited to 'win32/win32.c')

diff --git a/win32/win32.c b/win32/win32.c
index 30957cd211..f82a2f4494 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -395,7 +395,10 @@ NtInitialize(int *argc, char ***argv)
     int ret;
 
 #if _MSC_VER >= 1400
+    static void set_pioinfo_extra(void);
+
     _set_invalid_parameter_handler(invalid_parameter);
+    set_pioinfo_extra();
 #endif
 
     //
@@ -1683,11 +1686,36 @@ EXTERN_C _CRTIMP ioinfo * __pioinfo[];
 
 #define IOINFO_L2E			5
 #define IOINFO_ARRAY_ELTS	(1 << IOINFO_L2E)
-#define _pioinfo(i)	(__pioinfo[i >> IOINFO_L2E] + (i & (IOINFO_ARRAY_ELTS - 1)))
+#define _pioinfo(i)	((ioinfo*)((char*)(__pioinfo[i >> IOINFO_L2E]) + (i & (IOINFO_ARRAY_ELTS - 1)) * (sizeof(ioinfo) + pioinfo_extra)))
 #define _osfhnd(i)  (_pioinfo(i)->osfhnd)
 #define _osfile(i)  (_pioinfo(i)->osfile)
 #define _pipech(i)  (_pioinfo(i)->pipech)
 
+#if _MSC_VER >= 1400
+static size_t pioinfo_extra = 0;	/* workaround for VC++8 SP1 */
+
+static void
+set_pioinfo_extra(void)
+{
+    int fd;
+
+    fd = open("NUL", O_RDONLY);
+    for (pioinfo_extra = 0; pioinfo_extra <= 64; pioinfo_extra += sizeof(void *)) {
+	if (_osfhnd(fd) == _get_osfhandle(fd)) {
+	    break;
+	}
+    }
+    close(fd);
+
+    if (pioinfo_extra > 64) {
+	/* not found, maybe something wrong... */
+	pioinfo_extra = 0;
+    }
+}
+#else
+#define pioinfo_extra 0
+#endif
+
 #define _set_osfhnd(fh, osfh) (void)(_osfhnd(fh) = osfh)
 #define _set_osflags(fh, flags) (_osfile(fh) = (flags))
 
@@ -3323,6 +3351,12 @@ setup_call(CONTEXT* ctx, struct handler_arg_t *harg)
 #endif
 }
 
+void
+rb_w32_interrupted(void)
+{
+    SetSignal(interrupted_event);
+}
+
 int
 rb_w32_main_context(int arg, void (*handler)(int))
 {
@@ -3334,7 +3368,7 @@ rb_w32_main_context(int arg, void (*handler)(int))
 
     if (GetCurrentThreadId() == main_thread.id) return FALSE;
 
-    SetSignal(interrupted_event);
+    rb_w32_interrupted();
 
     RUBY_CRITICAL({		/* the main thread must be in user state */
 	CONTEXT ctx;
-- 
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