From babc4e5424c9c850d6e7111f98edc40f5282c507 Mon Sep 17 00:00:00 2001
From: Christopher Faylor <me@cgf.cx>
Date: Fri, 19 Aug 2005 14:56:48 +0000
Subject: [PATCH] * winsup.h (create_pipe): Declare new function. (CreatePipe):
 New define. * miscfuncs.cc (create_pipe): Define new function.

---
 winsup/cygwin/ChangeLog    |  6 ++++++
 winsup/cygwin/miscfuncs.cc | 14 ++++++++++++++
 winsup/cygwin/winsup.h     |  4 ++++
 3 files changed, 24 insertions(+)

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 009e291b7..19092a3e7 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,9 @@
+2005-08-19  Christopher Faylor  <cgf@timesys.com>
+
+	* winsup.h (create_pipe): Declare new function.
+	(CreatePipe): New define.
+	* miscfuncs.cc (create_pipe): Define new function.
+
 2005-08-18  Christopher Faylor  <cgf@timesys.com>
 
 	* fhandler.h (fhandler_tty_common::lseek): Declare new method.
diff --git a/winsup/cygwin/miscfuncs.cc b/winsup/cygwin/miscfuncs.cc
index 18e8bb103..26686bd2b 100644
--- a/winsup/cygwin/miscfuncs.cc
+++ b/winsup/cygwin/miscfuncs.cc
@@ -347,3 +347,17 @@ nice_to_winprio (int &nice)
     prio = NORMAL_PRIORITY_CLASS;
   return prio;
 }
+
+#undef CreatePipe
+bool
+create_pipe (PHANDLE hr,PHANDLE hw, LPSECURITY_ATTRIBUTES sa, DWORD n)
+{
+  for (int i = 0; i < 10; i++)
+    if (CreatePipe (hr, hw, sa, n))
+      return true;
+    else if (GetLastError () == ERROR_PIPE_BUSY && i < 9)
+      Sleep (10);
+    else
+      break;
+  return false;
+}
diff --git a/winsup/cygwin/winsup.h b/winsup/cygwin/winsup.h
index fdc8566d7..2bc40b170 100644
--- a/winsup/cygwin/winsup.h
+++ b/winsup/cygwin/winsup.h
@@ -308,6 +308,10 @@ size_t getshmlba ();
 int winprio_to_nice (DWORD) __attribute__ ((regparm (1)));
 DWORD nice_to_winprio (int &) __attribute__ ((regparm (1)));
 
+bool __stdcall create_pipe (PHANDLE hr, PHANDLE, LPSECURITY_ATTRIBUTES, DWORD)
+  __attribute__ ((regparm (3)));
+#define CreatePipe create_pipe
+
 /**************************** Exports ******************************/
 
 extern "C" {