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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include "uno/environment.hxx"
#include "cppu/EnvDcp.hxx"
#include "cppu/Enterable.hxx"
#include "osl/thread.h"
#include "osl/mutex.hxx"
#include <hash_map>
using namespace com::sun::star;
struct SAL_DLLPRIVATE oslThreadIdentifier_equal
{
bool operator()(oslThreadIdentifier s1, oslThreadIdentifier s2) const;
};
bool oslThreadIdentifier_equal::operator()(oslThreadIdentifier s1, oslThreadIdentifier s2) const
{
bool result = s1 == s2;
return result;
}
struct SAL_DLLPRIVATE oslThreadIdentifier_hash
{
size_t operator()(oslThreadIdentifier s1) const;
};
size_t oslThreadIdentifier_hash::operator()(oslThreadIdentifier s1) const
{
return s1;
}
typedef ::std::hash_map<oslThreadIdentifier,
uno_Environment *,
oslThreadIdentifier_hash,
oslThreadIdentifier_equal> ThreadMap;
static osl::Mutex s_threadMap_mutex;
static ThreadMap s_threadMap;
static rtl::OUString s_uno_envDcp(RTL_CONSTASCII_USTRINGPARAM(UNO_LB_UNO));
static void s_setCurrent(uno_Environment * pEnv)
{
oslThreadIdentifier threadId = osl_getThreadIdentifier(NULL);
osl::MutexGuard guard(s_threadMap_mutex);
if (pEnv)
s_threadMap[threadId] = pEnv;
else
{
ThreadMap::iterator iEnv = s_threadMap.find(threadId);
s_threadMap.erase(iEnv);
}
}
static uno_Environment * s_getCurrent(void)
{
uno_Environment * pEnv = NULL;
oslThreadIdentifier threadId = osl_getThreadIdentifier(NULL);
osl::MutexGuard guard(s_threadMap_mutex);
ThreadMap::iterator iEnv = s_threadMap.find(threadId);
if(iEnv != s_threadMap.end())
pEnv = iEnv->second;
return pEnv;
}
extern "C" void SAL_CALL uno_getCurrentEnvironment(uno_Environment ** ppEnv, rtl_uString * pTypeName)
SAL_THROW_EXTERN_C()
{
if (*ppEnv)
{
(*ppEnv)->release(*ppEnv);
*ppEnv = NULL;
}
rtl::OUString currPurpose;
uno_Environment * pCurrEnv = s_getCurrent();
if (pCurrEnv) // no environment means no purpose
currPurpose = cppu::EnvDcp::getPurpose(pCurrEnv->pTypeName);
if (pTypeName && rtl_uString_getLength(pTypeName))
{
rtl::OUString envDcp(pTypeName);
envDcp += currPurpose;
uno_getEnvironment(ppEnv, envDcp.pData, NULL);
}
else
{
if (pCurrEnv)
{
*ppEnv = pCurrEnv;
(*ppEnv)->acquire(*ppEnv);
}
else
uno_getEnvironment(ppEnv, s_uno_envDcp.pData, NULL);
}
}
static rtl::OUString s_getPrefix(rtl::OUString const & str1, rtl::OUString const & str2)
{
sal_Int32 nIndex1 = 0;
sal_Int32 nIndex2 = 0;
sal_Int32 sim = 0;
rtl::OUString token1;
rtl::OUString token2;
do
{
token1 = str1.getToken(0, ':', nIndex1);
token2 = str2.getToken(0, ':', nIndex2);
if (token1.equals(token2))
sim += token1.getLength() + 1;
}
while(nIndex1 == nIndex2 && nIndex1 >= 0 && token1.equals(token2));
rtl::OUString result;
if (sim)
result = str1.copy(0, sim - 1);
return result;
}
static int s_getNextEnv(uno_Environment ** ppEnv, uno_Environment * pCurrEnv, uno_Environment * pTargetEnv)
{
int res = 0;
rtl::OUString nextPurpose;
rtl::OUString currPurpose;
if (pCurrEnv)
currPurpose = cppu::EnvDcp::getPurpose(pCurrEnv->pTypeName);
rtl::OUString targetPurpose;
if (pTargetEnv)
targetPurpose = cppu::EnvDcp::getPurpose(pTargetEnv->pTypeName);
rtl::OUString intermPurpose(s_getPrefix(currPurpose, targetPurpose));
if (currPurpose.getLength() > intermPurpose.getLength())
{
sal_Int32 idx = currPurpose.lastIndexOf(':');
nextPurpose = currPurpose.copy(0, idx);
res = -1;
}
else if (intermPurpose.getLength() < targetPurpose.getLength())
{
sal_Int32 idx = targetPurpose.indexOf(':', intermPurpose.getLength() + 1);
if (idx == -1)
nextPurpose = targetPurpose;
else
nextPurpose = targetPurpose.copy(0, idx);
res = 1;
}
if (nextPurpose.getLength())
{
rtl::OUString next_envDcp(s_uno_envDcp);
next_envDcp += nextPurpose;
uno_getEnvironment(ppEnv, next_envDcp.pData, NULL);
}
else
{
if (*ppEnv)
(*ppEnv)->release(*ppEnv);
*ppEnv = NULL;
}
return res;
}
extern "C" { static void s_pull(va_list * pParam)
{
uno_EnvCallee * pCallee = va_arg(*pParam, uno_EnvCallee *);
va_list * pXparam = va_arg(*pParam, va_list *);
pCallee(pXparam);
}}
static void s_callInto_v(uno_Environment * pEnv, uno_EnvCallee * pCallee, va_list * pParam)
{
cppu::Enterable * pEnterable = reinterpret_cast<cppu::Enterable *>(pEnv->pReserved);
if (pEnterable)
pEnterable->callInto(s_pull, pCallee, pParam);
else
pCallee(pParam);
}
static void s_callInto(uno_Environment * pEnv, uno_EnvCallee * pCallee, ...)
{
va_list param;
va_start(param, pCallee);
s_callInto_v(pEnv, pCallee, ¶m);
va_end(param);
}
static void s_callOut_v(uno_Environment * pEnv, uno_EnvCallee * pCallee, va_list * pParam)
{
cppu::Enterable * pEnterable = reinterpret_cast<cppu::Enterable *>(pEnv->pReserved);
if (pEnterable)
pEnterable->callOut_v(pCallee, pParam);
else
pCallee(pParam);
}
static void s_callOut(uno_Environment * pEnv, uno_EnvCallee * pCallee, ...)
{
va_list param;
va_start(param, pCallee);
s_callOut_v(pEnv, pCallee, ¶m);
va_end(param);
}
static void s_environment_invoke_v(uno_Environment *, uno_Environment *, uno_EnvCallee *, va_list *);
extern "C" { static void s_environment_invoke_vv(va_list * pParam)
{
uno_Environment * pCurrEnv = va_arg(*pParam, uno_Environment *);
uno_Environment * pTargetEnv = va_arg(*pParam, uno_Environment *);
uno_EnvCallee * pCallee = va_arg(*pParam, uno_EnvCallee *);
va_list * pXparam = va_arg(*pParam, va_list *);
s_environment_invoke_v(pCurrEnv, pTargetEnv, pCallee, pXparam);
}}
static void s_environment_invoke_v(uno_Environment * pCurrEnv, uno_Environment * pTargetEnv, uno_EnvCallee * pCallee, va_list * pParam)
{
uno_Environment * pNextEnv = NULL;
switch(s_getNextEnv(&pNextEnv, pCurrEnv, pTargetEnv))
{
case -1:
s_setCurrent(pNextEnv);
s_callOut(pCurrEnv, s_environment_invoke_vv, pNextEnv, pTargetEnv, pCallee, pParam);
s_setCurrent(pCurrEnv);
break;
case 0: {
uno_Environment * hld = s_getCurrent();
s_setCurrent(pCurrEnv);
pCallee(pParam);
s_setCurrent(hld);
}
break;
case 1:
s_setCurrent(pNextEnv);
s_callInto(pNextEnv, s_environment_invoke_vv, pNextEnv, pTargetEnv, pCallee, pParam);
s_setCurrent(pCurrEnv);
break;
}
if (pNextEnv)
pNextEnv->release(pNextEnv);
}
extern "C" void SAL_CALL uno_Environment_invoke_v(uno_Environment * pTargetEnv, uno_EnvCallee * pCallee, va_list * pParam)
SAL_THROW_EXTERN_C()
{
s_environment_invoke_v(s_getCurrent(), pTargetEnv, pCallee, pParam);
}
extern "C" void SAL_CALL uno_Environment_invoke(uno_Environment * pEnv, uno_EnvCallee * pCallee, ...)
SAL_THROW_EXTERN_C()
{
va_list param;
va_start(param, pCallee);
uno_Environment_invoke_v(pEnv, pCallee, ¶m);
va_end(param);
}
extern "C" void SAL_CALL uno_Environment_enter(uno_Environment * pTargetEnv)
SAL_THROW_EXTERN_C()
{
uno_Environment * pNextEnv = NULL;
uno_Environment * pCurrEnv = s_getCurrent();
int res;
while ( (res = s_getNextEnv(&pNextEnv, pCurrEnv, pTargetEnv)) != 0)
{
cppu::Enterable * pEnterable;
switch(res)
{
case -1:
pEnterable = reinterpret_cast<cppu::Enterable *>(pCurrEnv->pReserved);
if (pEnterable)
pEnterable->leave();
pCurrEnv->release(pCurrEnv);
break;
case 1:
pNextEnv->acquire(pNextEnv);
pEnterable = reinterpret_cast<cppu::Enterable *>(pNextEnv->pReserved);
if (pEnterable)
pEnterable->enter();
break;
}
s_setCurrent(pNextEnv);
pCurrEnv = pNextEnv;
}
}
int SAL_CALL uno_Environment_isValid(uno_Environment * pEnv, rtl_uString ** pReason)
SAL_THROW_EXTERN_C()
{
int result = 1;
rtl::OUString typeName(cppu::EnvDcp::getTypeName(pEnv->pTypeName));
if (typeName.equals(s_uno_envDcp))
{
cppu::Enterable * pEnterable = reinterpret_cast<cppu::Enterable *>(pEnv->pReserved);
if (pEnterable)
result = pEnterable->isValid((rtl::OUString *)pReason);
}
else
{
rtl::OUString envDcp(s_uno_envDcp);
envDcp += cppu::EnvDcp::getPurpose(pEnv->pTypeName);
uno::Environment env(envDcp);
result = env.isValid((rtl::OUString *)pReason);
}
return result;
}
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