From: Anthony Geay Date: Fri, 18 Aug 2023 13:36:04 +0000 (+0200) Subject: [EDF27816] : Usage of AutoGIL RAII to protect python calls X-Git-Tag: emc2p_1.4.0-rc1~12 X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=05ec10d279b05182810ae9343ed6690e4e7f5dd2;p=modules%2Fkernel.git [EDF27816] : Usage of AutoGIL RAII to protect python calls --- diff --git a/src/Container/Container_i.cxx b/src/Container/Container_i.cxx index a0215f45e..79a7e8bc0 100644 --- a/src/Container/Container_i.cxx +++ b/src/Container/Container_i.cxx @@ -59,6 +59,7 @@ int SIGUSR1 = 1000; #include "SALOME_Embedded_NamingService_Client.hxx" #include "SALOME_Embedded_NamingService.hxx" #include "Basics_Utils.hxx" +#include "PythonCppUtils.hxx" #ifdef _XOPEN_SOURCE #undef _XOPEN_SOURCE @@ -215,34 +216,33 @@ Abstract_Engines_Container_i::Abstract_Engines_Container_i (CORBA::ORB_ptr orb, //approach leads to the deadlock of the main thread of the application on Windows platform //in case if cppContainer runs in the standalone mode. The problem with the PyThreadState //described by ABN seems not reproduced, to be checked carefully later... - PyGILState_STATE gstate = PyGILState_Ensure(); - - //// [ABN]: using the PyGILState* API here is unstable. omniORB logic is invoked - //// by the Python code executed below, and in some (random) cases, the Python code - //// execution ends with a PyThreadState which was not the one we have here. - //// (TODO: understand why ...) - //// To be on the safe side we get and load the thread state ourselves: - //PyEval_AcquireLock(); // get GIL - //PyThreadState * mainThreadState = PyThreadState_Get(); - //PyThreadState_Swap(mainThreadState); + { + AutoGIL gstate; + //// [ABN]: using the PyGILState* API here is unstable. omniORB logic is invoked + //// by the Python code executed below, and in some (random) cases, the Python code + //// execution ends with a PyThreadState which was not the one we have here. + //// (TODO: understand why ...) + //// To be on the safe side we get and load the thread state ourselves: + //PyEval_AcquireLock(); // get GIL + //PyThreadState * mainThreadState = PyThreadState_Get(); + //PyThreadState_Swap(mainThreadState); #ifdef WIN32 - // mpv: this is temporary solution: there is a unregular crash if not - //Sleep(2000); - // - // first element is the path to Registry.dll, but it's wrong - PyRun_SimpleString("import sys\n"); - PyRun_SimpleString("sys.path = sys.path[1:]\n"); + // mpv: this is temporary solution: there is a unregular crash if not + //Sleep(2000); + // + // first element is the path to Registry.dll, but it's wrong + PyRun_SimpleString("import sys\n"); + PyRun_SimpleString("sys.path = sys.path[1:]\n"); #endif - PyRun_SimpleString("import SALOME_Container\n"); - PyRun_SimpleString((char*)myCommand.c_str()); - PyObject *mainmod = PyImport_AddModule("__main__"); - PyObject *globals = PyModule_GetDict(mainmod); - _pyCont = PyDict_GetItemString(globals, "pyCont"); - - //PyThreadState_Swap(NULL); - //PyEval_ReleaseLock(); - PyGILState_Release(gstate); + PyRun_SimpleString("import SALOME_Container\n"); + PyRun_SimpleString((char*)myCommand.c_str()); + PyObject *mainmod = PyImport_AddModule("__main__"); + PyObject *globals = PyModule_GetDict(mainmod); + _pyCont = PyDict_GetItemString(globals, "pyCont"); + //PyThreadState_Swap(NULL); + //PyEval_ReleaseLock(); + } fileTransfer_i* aFileTransfer = new fileTransfer_i(); CORBA::Object_var obref=aFileTransfer->_this(); @@ -357,13 +357,12 @@ void Abstract_Engines_Container_i::ping() CORBA::Long Abstract_Engines_Container_i::getNumberOfCPUCores() { - PyGILState_STATE gstate = PyGILState_Ensure(); + AutoGIL gstate; PyObject *module = PyImport_ImportModuleNoBlock((char*)"salome_psutil"); PyObject *result = PyObject_CallMethod(module, (char*)"getNumberOfCPUCores", NULL); int n = PyLong_AsLong(result); Py_DECREF(result); - PyGILState_Release(gstate); return (CORBA::Long)n; } @@ -520,7 +519,7 @@ namespace { Engines::vectorOfDouble* Abstract_Engines_Container_i::loadOfCPUCores() { - PyGILState_STATE gstate = PyGILState_Ensure(); + AutoGIL gstate; PyObject *module = PyImport_ImportModuleNoBlock((char*)"salome_psutil"); PyObject *result = PyObject_CallMethod(module, (char*)"loadOfCPUCores", "s", @@ -529,7 +528,6 @@ Engines::vectorOfDouble* Abstract_Engines_Container_i::loadOfCPUCores() { std::string error = parseException(); PyErr_Print(); - PyGILState_Release(gstate); SALOME::ExceptionStruct es; es.type = SALOME::INTERNAL_ERROR; es.text = CORBA::string_dup(error.c_str()); @@ -539,7 +537,6 @@ Engines::vectorOfDouble* Abstract_Engines_Container_i::loadOfCPUCores() int n = this->getNumberOfCPUCores(); if (!PyList_Check(result) || PyList_Size(result) != n) { // bad number of cores - PyGILState_Release(gstate); Py_DECREF(result); SALOME::ExceptionStruct es; es.type = SALOME::INTERNAL_ERROR; @@ -555,7 +552,6 @@ Engines::vectorOfDouble* Abstract_Engines_Container_i::loadOfCPUCores() if (foo < 0.0 || foo > 1.0) { // value not in [0, 1] range - PyGILState_Release(gstate); Py_DECREF(result); SALOME::ExceptionStruct es; es.type = SALOME::INTERNAL_ERROR; @@ -566,7 +562,6 @@ Engines::vectorOfDouble* Abstract_Engines_Container_i::loadOfCPUCores() } Py_DECREF(result); - PyGILState_Release(gstate); return loads._retn(); } @@ -605,13 +600,12 @@ void Abstract_Engines_Container_i::resetScriptForCPULoad() CORBA::Long Abstract_Engines_Container_i::getTotalPhysicalMemory() { - PyGILState_STATE gstate = PyGILState_Ensure(); + AutoGIL gstate; PyObject *module = PyImport_ImportModuleNoBlock((char*)"salome_psutil"); PyObject *result = PyObject_CallMethod(module, (char*)"getTotalPhysicalMemory", NULL); int n = PyLong_AsLong(result); Py_DECREF(result); - PyGILState_Release(gstate); return (CORBA::Long)n; } @@ -625,13 +619,12 @@ CORBA::Long Abstract_Engines_Container_i::getTotalPhysicalMemory() CORBA::Long Abstract_Engines_Container_i::getTotalPhysicalMemoryInUse() { - PyGILState_STATE gstate = PyGILState_Ensure(); + AutoGIL gstate; PyObject *module = PyImport_ImportModuleNoBlock((char*)"salome_psutil"); PyObject *result = PyObject_CallMethod(module, (char*)"getTotalPhysicalMemoryInUse", NULL); int n = PyLong_AsLong(result); Py_DECREF(result); - PyGILState_Release(gstate); return (CORBA::Long)n; } @@ -645,13 +638,12 @@ CORBA::Long Abstract_Engines_Container_i::getTotalPhysicalMemoryInUse() CORBA::Long Abstract_Engines_Container_i::getTotalPhysicalMemoryInUseByMe() { - PyGILState_STATE gstate = PyGILState_Ensure(); + AutoGIL gstate; PyObject *module = PyImport_ImportModuleNoBlock((char*)"salome_psutil"); PyObject *result = PyObject_CallMethod(module, (char*)"getTotalPhysicalMemoryInUseByMe", NULL); int n = PyLong_AsLong(result); Py_DECREF(result); - PyGILState_Release(gstate); return (CORBA::Long)n; } @@ -915,15 +907,16 @@ Abstract_Engines_Container_i::load_component_PythonImplementation(const char* co } _numInstanceMutex.unlock() ; - PyGILState_STATE gstate = PyGILState_Ensure(); - PyObject *result = PyObject_CallMethod(_pyCont, - (char*)"import_component", - (char*)"s",componentName); + { + AutoGIL gstate; + PyObject *result = PyObject_CallMethod(_pyCont, + (char*)"import_component", + (char*)"s",componentName); - reason=PyUnicode_AsUTF8(result); - Py_XDECREF(result); - SCRUTE(reason); - PyGILState_Release(gstate); + reason=PyUnicode_AsUTF8(result); + Py_XDECREF(result); + SCRUTE(reason); + } if (reason=="") { @@ -1251,20 +1244,21 @@ Abstract_Engines_Container_i::createPythonInstance(std::string CompName, sprintf( aNumI , "%d" , numInstance ) ; std::string instanceName = CompName + "_inst_" + aNumI ; std::string component_registerName = _containerName + "/" + instanceName; - - PyGILState_STATE gstate = PyGILState_Ensure(); - PyObject *result = PyObject_CallMethod(_pyCont, - (char*)"create_component_instance", - (char*)"ss", - CompName.c_str(), - instanceName.c_str()); - const char *ior; - const char *error; - PyArg_ParseTuple(result,"ss", &ior, &error); - std::string iors = ior; - reason=error; - Py_DECREF(result); - PyGILState_Release(gstate); + std::string iors; + { + AutoGIL gstate; + PyObject *result = PyObject_CallMethod(_pyCont, + (char*)"create_component_instance", + (char*)"ss", + CompName.c_str(), + instanceName.c_str()); + const char *ior; + const char *error; + PyArg_ParseTuple(result,"ss", &ior, &error); + iors = ior; + reason=error; + Py_DECREF(result); + } if( iors!="" ) { @@ -1291,20 +1285,21 @@ Abstract_Engines_Container_i::create_python_service_instance(const char * CompNa std::string instanceName = std::string(CompName) + "_inst_" + aNumI ; std::string component_registerName = _containerName + "/" + instanceName; - PyGILState_STATE gstate = PyGILState_Ensure(); - PyObject *result = PyObject_CallMethod(_pyCont, - (char*)"create_component_instance", - (char*)"ss", - CompName, - instanceName.c_str()); - const char *ior; - const char *error; - PyArg_ParseTuple(result,"ss", &ior, &error); - reason = CORBA::string_dup(error); - char * _ior = CORBA::string_dup(ior); - Py_DECREF(result); - PyGILState_Release(gstate); - + char * _ior = nullptr; + { + AutoGIL gstate; + PyObject *result = PyObject_CallMethod(_pyCont, + (char*)"create_component_instance", + (char*)"ss", + CompName, + instanceName.c_str()); + const char *ior; + const char *error; + PyArg_ParseTuple(result,"ss", &ior, &error); + reason = CORBA::string_dup(error); + _ior = CORBA::string_dup(ior); + Py_DECREF(result); + } return _ior; } @@ -1961,28 +1956,29 @@ void Abstract_Engines_Container_i::copyFile(Engines::Container_ptr container, co Engines::PyNode_ptr Abstract_Engines_Container_i::createPyNode(const char* nodeName, const char* code) { Engines::PyNode_var node= Engines::PyNode::_nil(); - - PyGILState_STATE gstate = PyGILState_Ensure(); - PyObject *res = PyObject_CallMethod(_pyCont, - (char*)"create_pynode", - (char*)"ss", - nodeName, - code); - if(res==NULL) - { - //internal error - PyErr_Print(); - PyGILState_Release(gstate); - SALOME::ExceptionStruct es; - es.type = SALOME::INTERNAL_ERROR; - es.text = "can not create a python node"; - throw SALOME::SALOME_Exception(es); + long ierr(-1); + std::string astr; + { + AutoGIL gstate; + PyObject *res = PyObject_CallMethod(_pyCont, + (char*)"create_pynode", + (char*)"ss", + nodeName, + code); + if(res==NULL) + { + //internal error + PyErr_Print(); + SALOME::ExceptionStruct es; + es.type = SALOME::INTERNAL_ERROR; + es.text = "can not create a python node"; + throw SALOME::SALOME_Exception(es); + } + ierr=PyLong_AsLong(PyTuple_GetItem(res,0)); + PyObject* result=PyTuple_GetItem(res,1); + astr = PyUnicode_AsUTF8(result); + Py_DECREF(res); } - long ierr=PyLong_AsLong(PyTuple_GetItem(res,0)); - PyObject* result=PyTuple_GetItem(res,1); - std::string astr=PyUnicode_AsUTF8(result); - Py_DECREF(res); - PyGILState_Release(gstate); if(ierr==0) { Utils_Locker lck(&_mutexForDftPy); @@ -2044,28 +2040,29 @@ Engines::PyNode_ptr Abstract_Engines_Container_i::getDefaultPyNode(const char *n Engines::PyScriptNode_ptr Abstract_Engines_Container_i::createPyScriptNode(const char* nodeName, const char* code) { Engines::PyScriptNode_var node= Engines::PyScriptNode::_nil(); - - PyGILState_STATE gstate = PyGILState_Ensure(); - PyObject *res = PyObject_CallMethod(_pyCont, - (char*)"create_pyscriptnode", - (char*)"ss", - nodeName, - code); - if(res==NULL) - { - //internal error - PyErr_Print(); - PyGILState_Release(gstate); - SALOME::ExceptionStruct es; - es.type = SALOME::INTERNAL_ERROR; - es.text = "can not create a python node"; - throw SALOME::SALOME_Exception(es); + long ierr(-1); + std::string astr; + { + AutoGIL gstate; + PyObject *res = PyObject_CallMethod(_pyCont, + (char*)"create_pyscriptnode", + (char*)"ss", + nodeName, + code); + if(res==NULL) + { + //internal error + PyErr_Print(); + SALOME::ExceptionStruct es; + es.type = SALOME::INTERNAL_ERROR; + es.text = "can not create a python node"; + throw SALOME::SALOME_Exception(es); + } + ierr=PyLong_AsLong(PyTuple_GetItem(res,0)); + PyObject* result=PyTuple_GetItem(res,1); + astr = PyUnicode_AsUTF8(result); + Py_DECREF(res); } - long ierr=PyLong_AsLong(PyTuple_GetItem(res,0)); - PyObject* result=PyTuple_GetItem(res,1); - std::string astr=PyUnicode_AsUTF8(result); - Py_DECREF(res); - PyGILState_Release(gstate); if(ierr==0) { diff --git a/src/Container/Container_init_python.hxx b/src/Container/Container_init_python.hxx index 9aa01b199..caa10b743 100644 --- a/src/Container/Container_init_python.hxx +++ b/src/Container/Container_init_python.hxx @@ -39,25 +39,6 @@ #endif #include - -// next two MACRO must be used together only once inside a block -// ------------------------------------------------------------- -// protect a sequence of Python calls: -// - Python lock must be acquired for these calls -// - new Python thread state allows multi thread use of the sequence: -// - Python may release the lock within the sequence, so multiple -// thread execution of the sequence may occur. -// - For that case, each sequence call must use a specific Python -// thread state. -// - There is no need of C Lock protection of the sequence. - - -#define Py_ACQUIRE_NEW_THREAD \ - PyGILState_STATE gil_state = PyGILState_Ensure(); - -#define Py_RELEASE_NEW_THREAD \ - PyGILState_Release(gil_state); - typedef void ContainerPyOutChanged(void* data,char * c); typedef struct { diff --git a/src/MPIContainer/MPIContainer_i.cxx b/src/MPIContainer/MPIContainer_i.cxx index b2f30116d..70c2af11e 100644 --- a/src/MPIContainer/MPIContainer_i.cxx +++ b/src/MPIContainer/MPIContainer_i.cxx @@ -193,16 +193,17 @@ bool Engines_MPIContainer_i::Lload_component_Library(const char* componentName) } else { - Py_ACQUIRE_NEW_THREAD; - PyObject *mainmod = PyImport_AddModule((char *)"__main__"); - PyObject *globals = PyModule_GetDict(mainmod); - PyObject *pyCont = PyDict_GetItemString(globals, "pyCont"); - PyObject *result = PyObject_CallMethod(pyCont, - (char*)"import_component", - (char*)"s",componentName); - std::string ret= PyUnicode_AsUTF8(result); - SCRUTE(ret); - Py_RELEASE_NEW_THREAD; + { + AutoGIL agil; + PyObject *mainmod = PyImport_AddModule((char *)"__main__"); + PyObject *globals = PyModule_GetDict(mainmod); + PyObject *pyCont = PyDict_GetItemString(globals, "pyCont"); + PyObject *result = PyObject_CallMethod(pyCont, + (char*)"import_component", + (char*)"s",componentName); + std::string ret= PyUnicode_AsUTF8(result); + SCRUTE(ret); + } if (ret=="") // import possible: Python component { @@ -268,21 +269,22 @@ Engines_MPIContainer_i::Lcreate_component_instance( const char* genericRegisterN std::string component_registerName = _containerName + "/" + instanceName; - Py_ACQUIRE_NEW_THREAD; - PyObject *mainmod = PyImport_AddModule((char*)"__main__"); - PyObject *globals = PyModule_GetDict(mainmod); - PyObject *pyCont = PyDict_GetItemString(globals, "pyCont"); - PyObject *result = PyObject_CallMethod(pyCont, - (char*)"create_component_instance", - (char*)"ss", - aCompName.c_str(), - instanceName.c_str()); - const char *ior; - const char *error; - PyArg_ParseTuple(result,"ss", &ior, &error); - std::string iors = ior; - SCRUTE(iors); - Py_RELEASE_NEW_THREAD; + { + AutoGIL agil; + PyObject *mainmod = PyImport_AddModule((char*)"__main__"); + PyObject *globals = PyModule_GetDict(mainmod); + PyObject *pyCont = PyDict_GetItemString(globals, "pyCont"); + PyObject *result = PyObject_CallMethod(pyCont, + (char*)"create_component_instance", + (char*)"ss", + aCompName.c_str(), + instanceName.c_str()); + const char *ior; + const char *error; + PyArg_ParseTuple(result,"ss", &ior, &error); + std::string iors = ior; + SCRUTE(iors); + } CORBA::Object_var obj = _orb->string_to_object(iors.c_str()); iobject = Engines::EngineComponent::_narrow( obj ) ; diff --git a/src/ParallelContainer/SALOME_ParallelContainerProxy_i.cxx b/src/ParallelContainer/SALOME_ParallelContainerProxy_i.cxx index bb81631a5..f2cd9e701 100644 --- a/src/ParallelContainer/SALOME_ParallelContainerProxy_i.cxx +++ b/src/ParallelContainer/SALOME_ParallelContainerProxy_i.cxx @@ -57,10 +57,11 @@ Container_proxy_impl_final::Container_proxy_impl_final(CORBA::ORB_ptr orb, myCommand += _containerName + "','"; myCommand += sior; myCommand += "')\n"; - Py_ACQUIRE_NEW_THREAD; - PyRun_SimpleString("import SALOME_Container\n"); - PyRun_SimpleString((char*)myCommand.c_str()); - Py_RELEASE_NEW_THREAD; + { + AutoGIL agil; + PyRun_SimpleString("import SALOME_Container\n"); + PyRun_SimpleString((char*)myCommand.c_str()); + } } Container_proxy_impl_final:: ~Container_proxy_impl_final() { @@ -209,16 +210,17 @@ Container_proxy_impl_final::load_component_Library(const char* componentName, CO #endif MESSAGE("Try to import Python component "<