From a416ab17ecf9f2cb0f1e3f7bd645a8d1ce690ca2 Mon Sep 17 00:00:00 2001
From: rpj <rpj>
Date: Mon, 18 Feb 2002 03:16:52 +0000
Subject: Major reorganisation of source code; new routine and tests added.

---
 condvar_check_need_init.c | 94 -----------------------------------------------
 1 file changed, 94 deletions(-)
 delete mode 100644 condvar_check_need_init.c

(limited to 'condvar_check_need_init.c')

diff --git a/condvar_check_need_init.c b/condvar_check_need_init.c
deleted file mode 100644
index 1f6bba7..0000000
--- a/condvar_check_need_init.c
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * condvar_check_need_init.c
- *
- * Description:
- * This translation unit implements condition variables and their primitives.
- *
- *
- * --------------------------------------------------------------------------
- *
- *      Pthreads-win32 - POSIX Threads Library for Win32
- *      Copyright(C) 1998 John E. Bossom
- *      Copyright(C) 1999,2002 Pthreads-win32 contributors
- * 
- *      Contact Email: rpj@ise.canberra.edu.au
- * 
- *      The current list of contributors is contained
- *      in the file CONTRIBUTORS included with the source
- *      code distribution. The list can also be seen at the
- *      following World Wide Web location:
- *      http://sources.redhat.com/pthreads-win32/contributors.html
- * 
- *      This library is free software; you can redistribute it and/or
- *      modify it under the terms of the GNU Lesser General Public
- *      License as published by the Free Software Foundation; either
- *      version 2 of the License, or (at your option) any later version.
- * 
- *      This library is distributed in the hope that it will be useful,
- *      but WITHOUT ANY WARRANTY; without even the implied warranty of
- *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *      Lesser General Public License for more details.
- * 
- *      You should have received a copy of the GNU Lesser General Public
- *      License along with this library in the file COPYING.LIB;
- *      if not, write to the Free Software Foundation, Inc.,
- *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- */
-
-#include "pthread.h"
-#include "implement.h"
-
-
-static INLINE int
-ptw32_cond_check_need_init (pthread_cond_t *cond)
-{
-  int result = 0;
-
-  /*
-   * The following guarded test is specifically for statically
-   * initialised condition variables (via PTHREAD_OBJECT_INITIALIZER).
-   *
-   * Note that by not providing this synchronisation we risk
-   * introducing race conditions into applications which are
-   * correctly written.
-   *
-   * Approach
-   * --------
-   * We know that static condition variables will not be PROCESS_SHARED
-   * so we can serialise access to internal state using
-   * Win32 Critical Sections rather than Win32 Mutexes.
-   *
-   * If using a single global lock slows applications down too much,
-   * multiple global locks could be created and hashed on some random
-   * value associated with each mutex, the pointer perhaps. At a guess,
-   * a good value for the optimal number of global locks might be
-   * the number of processors + 1.
-   *
-   */
-  EnterCriticalSection(&ptw32_cond_test_init_lock);
-
-  /*
-   * We got here possibly under race
-   * conditions. Check again inside the critical section.
-   * If a static cv has been destroyed, the application can
-   * re-initialise it only by calling pthread_cond_init()
-   * explicitly.
-   */
-  if (*cond == PTHREAD_COND_INITIALIZER)
-    {
-      result = pthread_cond_init(cond, NULL);
-    }
-  else if (*cond == NULL)
-    {
-      /*
-       * The cv has been destroyed while we were waiting to
-       * initialise it, so the operation that caused the
-       * auto-initialisation should fail.
-       */
-      result = EINVAL;
-    }
-
-  LeaveCriticalSection(&ptw32_cond_test_init_lock);
-
-  return result;
-}
-- 
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