static void NativeModuleHost_Destroy(MODULE_HANDLE moduleHandle)
{
if (moduleHandle != NULL)
{
MODULE_HOST* module_host = (MODULE_HOST*)moduleHandle;
if (module_host->module != NULL)
{
const MODULE_LOADER* module_loader = module_host->module_loader;
MODULE_LIBRARY_HANDLE module_library = module_host->module_library_handle;
if (module_loader != NULL)
{
MODULE_LOADER_API * loader_api = module_loader->api;
if ((module_library != NULL) && (loader_api != NULL))
{
const MODULE_API* module_apis = loader_api->GetApi(module_loader, module_library);
if (MODULE_DESTROY(module_apis) != NULL)
{
/*Codes_SRS_NATIVEMODULEHOST_17_028: [ NativeModuleHost_Destroy shall free all remaining allocated resources if moduleHandle is not NULL. ]*/
MODULE_DESTROY(module_apis)(module_host->module);
}
loader_api->Unload(module_loader, module_library);
}
}
module_host->module = NULL;
module_host->module_library_handle = NULL;
module_host->module_host_broker = NULL;
free(module_host);
}
}
/*Codes_SRS_NATIVEMODULEHOST_17_027: [ NativeModuleHost_Destroy shall always destroy the module loader. ]*/
ModuleLoader_Destroy();
}
static MODULE_HANDLE NativeModuleHost_Create(BROKER_HANDLE broker, const void* configuration)
{
MODULE_HOST * result;
if (broker == NULL || configuration == NULL)
{
/*Codes_SRS_NATIVEMODULEHOST_17_008: [ NativeModuleHost_Create shall return NULL if broker is NULL. ]*/
/*Codes_SRS_NATIVEMODULEHOST_17_009: [ NativeModuleHost_Create shall return NULL if configuration does not contain valid JSON. ]*/
LogError("broker [%p] or configuration [%p] is NULL, both are required", broker, configuration);
result = NULL;
}
else
{
/*Codes_SRS_NATIVEMODULEHOST_17_010: [ NativeModuleHost_Create shall intialize the Module_Loader. ]*/
if (ModuleLoader_Initialize() != MODULE_LOADER_SUCCESS)
{
/*Codes_SRS_NATIVEMODULEHOST_17_026: [ If any step above fails, then NativeModuleHost_Create shall free all resources allocated and return NULL. ]*/
LogError("ModuleLoader_Initialize failed");
result = NULL;
}
else
{
/*Codes_SRS_NATIVEMODULEHOST_17_011: [ NativeModuleHost_Create shall parse the configuration JSON. ]*/
char * outprocess_module_args = (char *)configuration;
JSON_Value *root_value = json_parse_string(outprocess_module_args);
JSON_Object * module_host_args;
if ((root_value == NULL) ||
((module_host_args = json_value_get_object(root_value)) == NULL))
{
if (root_value != NULL)
{
json_value_free(root_value);
}
LogError("NativeModuleHost_Create could not parse arguments as JSON");
result = NULL;
}
else
{
/*Codes_SRS_NATIVEMODULEHOST_17_035: [ If the "outprocess.loaders" array exists in the configuration JSON, NativeModuleHost_Create shall initialize the Module_Loader from this array. ]*/
JSON_Value * loaders_array = json_object_get_value(module_host_args, OOP_MODULE_LOADERS_ARRAY_KEY);
if ((loaders_array != NULL) &&
(ModuleLoader_InitializeFromJson(loaders_array) != MODULE_LOADER_SUCCESS))
{
LogError("NativeModuleHost_Create could not extract loaders array from module arguments.");
result = NULL;
}
else
{
/*Codes_SRS_NATIVEMODULEHOST_17_012: [ NativeModuleHost_Create shall get the "outprocess.loader" object from the configuration JSON. ]*/
JSON_Object * loader_args = json_object_get_object(module_host_args, OOP_MODULE_LOADER_KEY);
if (loader_args == NULL)
{
LogError("NativeModuleHost_Create could not get loader arguments.");
result = NULL;
}
else
{
GATEWAY_MODULE_LOADER_INFO loader_info;
if (parse_loader(loader_args, &loader_info) != 0)
{
/*Codes_SRS_NATIVEMODULEHOST_17_026: [ If any step above fails, then NativeModuleHost_Create shall free all resources allocated and return NULL. ]*/
LogError("NativeModuleHost_Create could not extract loader information from loader arguments.");
result = NULL;
}
else
{
// Have loader and entrypoint now, get module.
result = (MODULE_HOST*)malloc(sizeof(MODULE_HOST));
if (result == NULL)
{
LogError("NativeModuleHost_Create could not allocate module.");
result = NULL;
}
else
{
/*Codes_SRS_NATIVEMODULEHOST_17_018: [ NativeModuleHost_Create shall get the "module.args" object from the configuration JSON. ]*/
JSON_Value * module_args = json_object_get_value(module_host_args, OOP_MODULE_ARGS_KEY);
char * module_args_string = json_serialize_to_string(module_args);
if (module_create(result, broker, &loader_info, module_args_string) != 0)
{
/*Codes_SRS_NATIVEMODULEHOST_17_026: [ If any step above fails, then NativeModuleHost_Create shall free all resources allocated and return NULL. ]*/
LogError("NativeModuleHost_Create could not load module.");
free(result);
result = NULL;
}
/*Codes_SRS_NATIVEMODULEHOST_17_024: [ NativeModuleHost_Create shall free all resources used during module loading. ]*/
json_free_serialized_string(module_args_string);
}
loader_info.loader->api->FreeEntrypoint(loader_info.loader, loader_info.entrypoint);
}
}
}
/*Codes_SRS_NATIVEMODULEHOST_17_024: [ NativeModuleHost_Create shall free all resources used during module loading. ]*/
json_value_free(root_value);
}
if (result == NULL)
{
// failed to create a module, give up entirely.
/*Codes_SRS_NATIVEMODULEHOST_17_026: [ If any step above fails, then NativeModuleHost_Create shall free all resources allocated and return NULL. ]*/
ModuleLoader_Destroy();
}
}
}
return result;
}
MODULE_LOADER_RESULT ModuleLoader_Initialize(void)
{
MODULE_LOADER_RESULT result;
/*Codes_SRS_MODULE_LOADER_13_001: [ ModuleLoader_Initialize shall initialize g_module_loader.lock. ]*/
g_module_loaders.lock = Lock_Init();
if (g_module_loaders.lock == NULL)
{
LogError("Lock_Init failed");
/*Codes_SRS_MODULE_LOADER_13_002: [ ModuleLoader_Initialize shall return MODULE_LOADER_ERROR if an underlying platform call fails. ]*/
result = MODULE_LOADER_ERROR;
}
else
{
/*Codes_SRS_MODULE_LOADER_13_003: [ ModuleLoader_Initialize shall acquire the lock on g_module_loader.lock. ]*/
if (Lock(g_module_loaders.lock) != LOCK_OK)
{
LogError("Lock failed");
Lock_Deinit(g_module_loaders.lock);
g_module_loaders.lock = NULL;
/*Codes_SRS_MODULE_LOADER_13_002: [ ModuleLoader_Initialize shall return MODULE_LOADER_ERROR if an underlying platform call fails. ]*/
result = MODULE_LOADER_ERROR;
}
else
{
/*Codes_SRS_MODULE_LOADER_13_004: [ ModuleLoader_Initialize shall initialize g_module.module_loaders by calling VECTOR_create. ]*/
g_module_loaders.module_loaders = VECTOR_create(sizeof(MODULE_LOADER*));
if (g_module_loaders.module_loaders == NULL)
{
LogError("VECTOR_create failed");
Unlock(g_module_loaders.lock);
Lock_Deinit(g_module_loaders.lock);
g_module_loaders.lock = NULL;
/*Codes_SRS_MODULE_LOADER_13_002: [ ModuleLoader_Initialize shall return MODULE_LOADER_ERROR if an underlying platform call fails. ]*/
result = MODULE_LOADER_ERROR;
}
else
{
// add all supported module loaders
const MODULE_LOADER* supported_loaders[] =
{
DynamicLoader_Get()
#ifdef NODE_BINDING_ENABLED
, NodeLoader_Get()
#endif
#ifdef JAVA_BINDING_ENABLED
, JavaLoader_Get()
#endif
#ifdef DOTNET_BINDING_ENABLED
, DotnetLoader_Get()
#endif
#ifdef DOTNET_CORE_BINDING_ENABLED
, DotnetCoreLoader_Get()
#endif
};
size_t loaders_count = sizeof(supported_loaders) / sizeof(supported_loaders[0]);
size_t i;
for (i = 0; i < loaders_count; i++)
{
/*Codes_SRS_MODULE_LOADER_13_005: [ ModuleLoader_Initialize shall add the default support module loaders to g_module.module_loaders. ]*/
if (add_module_loader(supported_loaders[i]) != MODULE_LOADER_SUCCESS)
{
LogError("Could not add loader - %s", supported_loaders[i]->name);
break;
}
}
/*Codes_SRS_MODULE_LOADER_13_007: [ ModuleLoader_Initialize shall unlock g_module.lock. ]*/
Unlock(g_module_loaders.lock);
// adding loaders failed if we bailed early from the loop above
if (i < loaders_count)
{
ModuleLoader_Destroy();
/*Codes_SRS_MODULE_LOADER_13_002: [ ModuleLoader_Initialize shall return MODULE_LOADER_ERROR if an underlying platform call fails. ]*/
result = MODULE_LOADER_ERROR;
}
else
{
/*Codes_SRS_MODULE_LOADER_13_006: [ ModuleLoader_Initialize shall return MODULE_LOADER_SUCCESS once all the default loaders have been added successfully. ]*/
result = MODULE_LOADER_SUCCESS;
}
}
}
}
return result;
}
