206b5b2661
...warning about (for now only) functions and variables with external linkage
that likely don't need it.
The problems with moving entities into unnamed namespacs and breaking ADL
(as alluded to in comments in compilerplugins/clang/external.cxx) are
illustrated by the fact that while
struct S1 { int f() { return 0; } };
int f(S1 s) { return s.f(); }
namespace N {
struct S2: S1 { int f() { return 1; } };
int f(S2 s) { return s.f(); }
}
int main() { return f(N::S2()); }
returns 1, both moving just the struct S2 into an nunnamed namespace,
struct S1 { int f() { return 0; } };
int f(S1 s) { return s.f(); }
namespace N {
namespace { struct S2: S1 { int f() { return 1; } }; }
int f(S2 s) { return s.f(); }
}
int main() { return f(N::S2()); }
as well as moving just the function f overload into an unnamed namespace,
struct S1 { int f() { return 0; } };
int f(S1 s) { return s.f(); }
namespace N {
struct S2: S1 { int f() { return 1; } };
namespace { int f(S2 s) { return s.f(); } }
}
int main() { return f(N::S2()); }
would each change the program to return 0 instead.
Change-Id: I4d09f7ac5e8f9bcd6e6bde4712608444b642265c
Reviewed-on: https://gerrit.libreoffice.org/60539
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
297 lines
9.1 KiB
C++
297 lines
9.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <config_features.h>
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#include <config_folders.h>
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#include <pyuno.hxx>
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#include <o3tl/any.hxx>
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#include <osl/process.h>
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#include <osl/file.hxx>
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#include <osl/thread.h>
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#include <rtl/ustrbuf.hxx>
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#include <rtl/strbuf.hxx>
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#include <rtl/bootstrap.hxx>
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#include <cppuhelper/implementationentry.hxx>
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#include <cppuhelper/factory.hxx>
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// apparently PATH_MAX is not standard and not defined by MSVC
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#ifndef PATH_MAX
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#ifdef _MAX_PATH
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#define PATH_MAX _MAX_PATH
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#else
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#ifdef MAX_PATH
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#define PATH_MAX MAX_PATH
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#else
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#error no PATH_MAX
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#endif
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#endif
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#endif
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using pyuno::PyRef;
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using pyuno::NOT_NULL;
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using pyuno::Runtime;
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using pyuno::PyThreadAttach;
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using com::sun::star::uno::Reference;
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using com::sun::star::uno::XInterface;
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using com::sun::star::uno::Sequence;
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using com::sun::star::uno::XComponentContext;
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using com::sun::star::uno::RuntimeException;
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namespace pyuno_loader
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{
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/// @throws RuntimeException
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static void raiseRuntimeExceptionWhenNeeded()
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{
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if( PyErr_Occurred() )
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{
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PyRef excType, excValue, excTraceback;
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PyErr_Fetch(reinterpret_cast<PyObject **>(&excType), reinterpret_cast<PyObject**>(&excValue), reinterpret_cast<PyObject**>(&excTraceback));
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Runtime runtime;
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css::uno::Any a = runtime.extractUnoException( excType, excValue, excTraceback );
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OUStringBuffer buf;
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buf.append( "python-loader:" );
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if( auto e = o3tl::tryAccess<css::uno::Exception>(a) )
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buf.append( e->Message );
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throw RuntimeException( buf.makeStringAndClear() );
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}
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}
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/// @throws RuntimeException
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static PyRef getLoaderModule()
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{
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PyRef module(
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PyImport_ImportModule( "pythonloader" ),
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SAL_NO_ACQUIRE );
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raiseRuntimeExceptionWhenNeeded();
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if( !module.is() )
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{
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throw RuntimeException( "pythonloader: Couldn't load pythonloader module" );
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}
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return PyRef( PyModule_GetDict( module.get() ));
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}
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/// @throws RuntimeException
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static PyRef getObjectFromLoaderModule( const char * func )
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{
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PyRef object( PyDict_GetItemString(getLoaderModule().get(), func ) );
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if( !object.is() )
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{
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throw RuntimeException( "pythonloader: couldn't find core element pythonloader." +
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OUString::createFromAscii( func ));
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}
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return object;
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}
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static OUString getImplementationName()
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{
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return OUString( "org.openoffice.comp.pyuno.Loader" );
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}
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static Sequence< OUString > getSupportedServiceNames()
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{
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OUString serviceName( "com.sun.star.loader.Python" );
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return Sequence< OUString > ( &serviceName, 1 );
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}
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static void setPythonHome ( const OUString & pythonHome )
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{
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OUString systemPythonHome;
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osl_getSystemPathFromFileURL( pythonHome.pData, &(systemPythonHome.pData) );
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OString o = OUStringToOString( systemPythonHome, osl_getThreadTextEncoding() );
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#if PY_MAJOR_VERSION >= 3
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// static because Py_SetPythonHome just copies the "wide" pointer
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static wchar_t wide[PATH_MAX + 1];
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size_t len = mbstowcs(wide, o.pData->buffer, PATH_MAX + 1);
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if(len == size_t(-1))
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{
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PyErr_SetString(PyExc_SystemError, "invalid multibyte sequence in python home path");
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return;
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}
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if(len == PATH_MAX + 1)
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{
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PyErr_SetString(PyExc_SystemError, "python home path is too long");
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return;
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}
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Py_SetPythonHome(wide);
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#else
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rtl_string_acquire(o.pData); // increase reference count
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Py_SetPythonHome(o.pData->buffer);
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#endif
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}
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static void prependPythonPath( const OUString & pythonPathBootstrap )
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{
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OUStringBuffer bufPYTHONPATH( 256 );
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sal_Int32 nIndex = 0;
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while( true )
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{
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sal_Int32 nNew = pythonPathBootstrap.indexOf( ' ', nIndex );
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OUString fileUrl;
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if( nNew == -1 )
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{
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fileUrl = pythonPathBootstrap.copy(nIndex);
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}
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else
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{
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fileUrl = pythonPathBootstrap.copy(nIndex, nNew - nIndex);
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}
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OUString systemPath;
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osl_getSystemPathFromFileURL( fileUrl.pData, &(systemPath.pData) );
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bufPYTHONPATH.append( systemPath );
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bufPYTHONPATH.append( static_cast<sal_Unicode>(SAL_PATHSEPARATOR) );
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if( nNew == -1 )
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break;
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nIndex = nNew + 1;
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}
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const char * oldEnv = getenv( "PYTHONPATH");
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if( oldEnv )
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bufPYTHONPATH.append( OUString(oldEnv, strlen(oldEnv), osl_getThreadTextEncoding()) );
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OUString envVar("PYTHONPATH");
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OUString envValue(bufPYTHONPATH.makeStringAndClear());
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osl_setEnvironment(envVar.pData, envValue.pData);
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}
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struct PythonInit
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{
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PythonInit() {
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if (! Py_IsInitialized()) // may be inited by getComponentContext() already
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{
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OUString pythonPath;
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OUString pythonHome;
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OUString path( "$BRAND_BASE_DIR/" LIBO_ETC_FOLDER "/" SAL_CONFIGFILE("pythonloader.uno" ));
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rtl::Bootstrap::expandMacros(path); //TODO: detect failure
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rtl::Bootstrap bootstrap(path);
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// look for pythonhome
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bootstrap.getFrom( "PYUNO_LOADER_PYTHONHOME", pythonHome );
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bootstrap.getFrom( "PYUNO_LOADER_PYTHONPATH", pythonPath );
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// pythonhome+pythonpath must be set before Py_Initialize(), otherwise there appear warning on the console
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// sadly, there is no api for setting the pythonpath, we have to use the environment variable
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if( !pythonHome.isEmpty() )
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setPythonHome( pythonHome );
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if( !pythonPath.isEmpty() )
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prependPythonPath( pythonPath );
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#ifdef _WIN32
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//extend PATH under windows to include the branddir/program so ssl libs will be found
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//for use by terminal mailmerge dependency _ssl.pyd
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OUString sEnvName("PATH");
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OUString sPath;
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osl_getEnvironment(sEnvName.pData, &sPath.pData);
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OUString sBrandLocation("$BRAND_BASE_DIR/program");
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rtl::Bootstrap::expandMacros(sBrandLocation);
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osl::FileBase::getSystemPathFromFileURL(sBrandLocation, sBrandLocation);
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sPath = OUStringBuffer(sPath).
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append(static_cast<sal_Unicode>(SAL_PATHSEPARATOR)).
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append(sBrandLocation).makeStringAndClear();
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osl_setEnvironment(sEnvName.pData, sPath.pData);
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#endif
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#if PY_MAJOR_VERSION >= 3
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PyImport_AppendInittab( "pyuno", PyInit_pyuno );
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#else
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PyImport_AppendInittab( (char*)"pyuno", initpyuno );
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#endif
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#if HAVE_FEATURE_READONLY_INSTALLSET
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Py_DontWriteBytecodeFlag = 1;
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#endif
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// initialize python
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Py_Initialize();
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PyEval_InitThreads();
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PyThreadState *tstate = PyThreadState_Get();
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PyEval_ReleaseThread( tstate );
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// This tstate is never used again, so delete it here.
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// This prevents an assertion in PyThreadState_Swap on the
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// PyThreadAttach below.
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PyThreadState_Delete(tstate);
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}
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}
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};
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static Reference<XInterface> CreateInstance(const Reference<XComponentContext> & ctx)
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{
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// tdf#114815 thread-safe static to init python only once
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static PythonInit s_Init;
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Reference< XInterface > ret;
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PyThreadAttach attach( PyInterpreterState_Head() );
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{
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// note: this can't race against getComponentContext() because
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// either (in soffice.bin) CreateInstance() must be called before
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// getComponentContext() can be called, or (in python.bin) the other
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// way around
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if( ! Runtime::isInitialized() )
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{
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Runtime::initialize( ctx );
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}
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Runtime runtime;
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PyRef pyCtx = runtime.any2PyObject(
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css::uno::makeAny( ctx ) );
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PyRef clazz = getObjectFromLoaderModule( "Loader" );
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PyRef args ( PyTuple_New( 1 ), SAL_NO_ACQUIRE, NOT_NULL );
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PyTuple_SetItem( args.get(), 0 , pyCtx.getAcquired() );
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PyRef pyInstance( PyObject_CallObject( clazz.get() , args.get() ), SAL_NO_ACQUIRE );
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runtime.pyObject2Any( pyInstance ) >>= ret;
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}
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return ret;
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}
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}
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static const struct cppu::ImplementationEntry g_entries[] =
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{
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{
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pyuno_loader::CreateInstance, pyuno_loader::getImplementationName,
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pyuno_loader::getSupportedServiceNames, cppu::createSingleComponentFactory,
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nullptr , 0
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},
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{ nullptr, nullptr, nullptr, nullptr, nullptr, 0 }
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};
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extern "C"
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{
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SAL_DLLPUBLIC_EXPORT void * pythonloader_component_getFactory(
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const sal_Char * pImplName, void * pServiceManager, void * pRegistryKey )
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{
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return cppu::component_getFactoryHelper( pImplName, pServiceManager, pRegistryKey , g_entries );
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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