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-rw-r--r--cppu/source/threadpool/threadident.cxx120
1 files changed, 120 insertions, 0 deletions
diff --git a/cppu/source/threadpool/threadident.cxx b/cppu/source/threadpool/threadident.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <osl/thread.hxx>
+#include <osl/diagnose.h>
+
+#include <rtl/process.h>
+#include <rtl/byteseq.hxx>
+
+#include <uno/threadpool.h>
+
+#include "current.hxx"
+
+using namespace ::std;
+using namespace ::osl;
+using namespace ::cppu;
+
+static void createLocalId( sal_Sequence **ppThreadId )
+{
+ rtl_byte_sequence_constructNoDefault( ppThreadId , 4 + 16 );
+ sal_uInt32 id = osl::Thread::getCurrentIdentifier();
+ (*ppThreadId)->elements[0] = id & 0xFF;
+ (*ppThreadId)->elements[1] = (id >> 8) & 0xFF;
+ (*ppThreadId)->elements[2] = (id >> 16) & 0xFF;
+ (*ppThreadId)->elements[3] = (id >> 24) & 0xFF;
+ rtl_getGlobalProcessId( reinterpret_cast<sal_uInt8 *>(&(*ppThreadId)->elements[4]) );
+}
+
+extern "C" void SAL_CALL
+uno_getIdOfCurrentThread( sal_Sequence **ppThreadId )
+ SAL_THROW_EXTERN_C()
+{
+ IdContainer& id = getIdContainer();
+ if (!id.bInit)
+ {
+ // first time, that the thread enters the bridge
+ createLocalId( ppThreadId );
+
+ // TODO
+ // note : this is a leak !
+ id.pLocalThreadId = *ppThreadId;
+ id.pCurrentId = *ppThreadId;
+ id.nRefCountOfCurrentId = 1;
+ rtl_byte_sequence_acquire( id.pLocalThreadId );
+ rtl_byte_sequence_acquire( id.pCurrentId );
+ id.bInit = true;
+ }
+ else
+ {
+ id.nRefCountOfCurrentId ++;
+ if( *ppThreadId )
+ {
+ rtl_byte_sequence_release( *ppThreadId );
+ }
+ *ppThreadId = id.pCurrentId;
+ rtl_byte_sequence_acquire( *ppThreadId );
+ }
+}
+
+extern "C" void SAL_CALL uno_releaseIdFromCurrentThread()
+ SAL_THROW_EXTERN_C()
+{
+ IdContainer& id = getIdContainer();
+ OSL_ASSERT( id.bInit );
+ OSL_ASSERT( id.nRefCountOfCurrentId );
+
+ id.nRefCountOfCurrentId --;
+ if( ! id.nRefCountOfCurrentId && (id.pLocalThreadId != id.pCurrentId) )
+ {
+ rtl_byte_sequence_assign( &(id.pCurrentId) , id.pLocalThreadId );
+ }
+}
+
+extern "C" sal_Bool SAL_CALL uno_bindIdToCurrentThread( sal_Sequence *pThreadId )
+ SAL_THROW_EXTERN_C()
+{
+ IdContainer& id = getIdContainer();
+ if (!id.bInit)
+ {
+ id.pLocalThreadId = nullptr;
+ createLocalId( &(id.pLocalThreadId) );
+ id.nRefCountOfCurrentId = 1;
+ id.pCurrentId = pThreadId;
+ rtl_byte_sequence_acquire(id.pCurrentId);
+ id.bInit = true;
+ }
+ else
+ {
+ OSL_ASSERT( 0 == id.nRefCountOfCurrentId );
+ if( 0 == id.nRefCountOfCurrentId )
+ {
+ rtl_byte_sequence_assign(&( id.pCurrentId ), pThreadId );
+ id.nRefCountOfCurrentId ++;
+ }
+ else
+ {
+ return false;
+ }
+
+ }
+ return true;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */