simplex-glpk with modified glpk for fpgaHEADmaster

1 files changed, 126 insertions, 0 deletions

diff --git a/glpk-5.0/src/env/tls.c b/glpk-5.0/src/env/tls.c
new file mode 100644
index 0000000..06b8489
--- /dev/null
+++ b/glpk-5.0/src/env/tls.c
@@ -0,0 +1,126 @@
+/* tls.c (thread local storage) */
+
+/***********************************************************************
+*  This code is part of GLPK (GNU Linear Programming Kit).
+*  Copyright (C) 2001-2017 Free Software Foundation, Inc.
+*  Written by Andrew Makhorin <mao@gnu.org>.
+*
+*  GLPK is free software: you can redistribute it and/or modify it
+*  under the terms of the GNU General Public License as published by
+*  the Free Software Foundation, either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  GLPK 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 General Public
+*  License for more details.
+*
+*  You should have received a copy of the GNU General Public License
+*  along with GLPK. If not, see <http://www.gnu.org/licenses/>.
+***********************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "env.h"
+
+#ifndef TLS
+static void *tls = NULL;
+#else
+static TLS void *tls = NULL;
+/* this option allows running multiple independent instances of GLPK in
+ * different threads of a multi-threaded application, in which case the
+ * variable tls should be placed in the Thread Local Storage (TLS);
+ * it is assumed that the macro TLS is previously defined to something
+ * like '__thread', '_Thread_local', etc. */
+#endif
+
+/***********************************************************************
+*  NAME
+*
+*  tls_set_ptr - store global pointer in TLS
+*
+*  SYNOPSIS
+*
+*  #include "env.h"
+*  void tls_set_ptr(void *ptr);
+*
+*  DESCRIPTION
+*
+*  The routine tls_set_ptr stores a pointer specified by the parameter
+*  ptr in the Thread Local Storage (TLS). */
+
+void tls_set_ptr(void *ptr)
+{     tls = ptr;
+      return;
+}
+
+/***********************************************************************
+*  NAME
+*
+*  tls_get_ptr - retrieve global pointer from TLS
+*
+*  SYNOPSIS
+*
+*  #include "env.h"
+*  void *tls_get_ptr(void);
+*
+*  RETURNS
+*
+*  The routine tls_get_ptr returns a pointer previously stored by the
+*  routine tls_set_ptr. If the latter has not been called yet, NULL is
+*  returned. */
+
+void *tls_get_ptr(void)
+{     void *ptr;
+      ptr = tls;
+      return ptr;
+}
+
+/**********************************************************************/
+
+#ifdef __WOE__
+
+/*** Author: Heinrich Schuchardt <xypron.glpk@gmx.de> ***/
+
+#pragma comment(lib, "user32.lib")
+
+#include <windows.h>
+
+#define VISTA 0x06
+
+/* This is the main entry point of the DLL. */
+
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID
+      lpvReserved)
+{     DWORD version;
+      DWORD major_version;
+#ifdef TLS
+      switch (fdwReason)
+      {  case DLL_PROCESS_ATTACH:
+         /* @TODO:
+          * GetVersion is deprecated but the version help functions are
+          * not available in Visual Studio 2010. So lets use it until
+          * we remove the outdated Build files. */
+         version = GetVersion();
+         major_version = version & 0xff;
+         if (major_version < VISTA)
+         {  MessageBoxA(NULL,
+               "The GLPK library called by this application is configur"
+               "ed to use thread local storage which is not fully suppo"
+               "rted by your version of Microsoft Windows.\n\n"
+               "Microsoft Windows Vista or a later version of Windows i"
+               "s required to run this application.",
+               "GLPK", MB_OK | MB_ICONERROR);
+            return FALSE;
+         }
+         break;
+      }
+#endif /* TLS */
+      return TRUE;
+}
+
+#endif /* __WOE__ */
+
+/* eof */