diff options
Diffstat (limited to 'Source/FusionDale/proxy/dispatcher/icomacomponent_dispatcher.c')
| -rwxr-xr-x | Source/FusionDale/proxy/dispatcher/icomacomponent_dispatcher.c | 376 |
1 files changed, 376 insertions, 0 deletions
diff --git a/Source/FusionDale/proxy/dispatcher/icomacomponent_dispatcher.c b/Source/FusionDale/proxy/dispatcher/icomacomponent_dispatcher.c new file mode 100755 index 0000000..23637dd --- /dev/null +++ b/Source/FusionDale/proxy/dispatcher/icomacomponent_dispatcher.c @@ -0,0 +1,376 @@ +/* + (c) Copyright 2001-2009 The world wide DirectFB Open Source Community (directfb.org) + (c) Copyright 2000-2004 Convergence (integrated media) GmbH + + All rights reserved. + + Written by Denis Oliver Kropp <dok@directfb.org>, + Andreas Hundt <andi@fischlustig.de>, + Sven Neumann <neo@directfb.org>, + Ville Syrjälä <syrjala@sci.fi> and + Claudio Ciccani <klan@users.sf.net>. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the + Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. +*/ + +#include <config.h> + +#include <fusiondale.h> + +#include <direct/debug.h> +#include <direct/interface.h> +#include <direct/messages.h> + +#include <voodoo/interface.h> +#include <voodoo/manager.h> +#include <voodoo/message.h> + +#include <coma/coma.h> +#include <coma/component.h> +#include <coma/policy.h> + +#include <coma/icoma.h> +#include <coma/icomacomponent.h> + +#include "icomacomponent_dispatcher.h" + +static DirectResult Probe( void ); +static DirectResult Construct( IComaComponent *thiz, + IComaComponent *real, + VoodooManager *manager, + VoodooInstanceID super, + void *arg, /* Optional arguments to constructor */ + VoodooInstanceID *ret_instance ); + +#include <direct/interface_implementation.h> + +DIRECT_INTERFACE_IMPLEMENTATION( IComaComponent, Dispatcher ) + + +/**************************************************************************************************/ + +/* + * private data struct of IComaComponent_Dispatcher + */ +typedef struct { + int ref; /* reference counter */ + + IComaComponent *real; + + VoodooInstanceID super; + VoodooInstanceID self; + + VoodooManager *manager; + + IComa *coma; + + DirectHash *listeners; + + char *coma_name; + char *component_name; +} IComaComponent_Dispatcher_data; + +/**************************************************************************************************/ + +static void +IComaComponent_Dispatcher_Destruct( IComaComponent *thiz ) +{ + IComaComponent_Dispatcher_data *data; + + D_DEBUG( "%s (%p)\n", __FUNCTION__, thiz ); + + data = thiz->priv; + + D_FREE( data->component_name ); + D_FREE( data->coma_name ); + + direct_hash_destroy( data->listeners ); + + voodoo_manager_unregister_local( data->manager, data->self ); + + data->real->Release( data->real ); + + DIRECT_DEALLOCATE_INTERFACE( thiz ); +} + +/**************************************************************************************************/ + +static DirectResult +IComaComponent_Dispatcher_AddRef( IComaComponent *thiz ) +{ + DIRECT_INTERFACE_GET_DATA(IComaComponent_Dispatcher) + + data->ref++; + + return DR_OK; +} + +static DirectResult +IComaComponent_Dispatcher_Release( IComaComponent *thiz ) +{ + DIRECT_INTERFACE_GET_DATA(IComaComponent_Dispatcher) + + if (--data->ref == 0) + IComaComponent_Dispatcher_Destruct( thiz ); + + return DR_OK; +} + +/**************************************************************************************************/ + +static DirectResult +Dispatch_Call( IComaComponent *thiz, IComaComponent *real, + VoodooManager *manager, VoodooRequestMessage *msg ) +{ + DirectResult ret; + ComaMethodID method; + unsigned int length; + void *arg; + int ret_val; + VoodooMessageParser parser; + IComa *coma; + + DIRECT_INTERFACE_GET_DATA(IComaComponent_Dispatcher) + + coma = data->coma; + + VOODOO_PARSER_BEGIN( parser, msg ); + VOODOO_PARSER_GET_UINT( parser, method ); + VOODOO_PARSER_GET_UINT( parser, length ); + + if (!coma_policy_check_method( data->coma_name, data->component_name, method )) + return DR_ACCESSDENIED; + + if (length) { + ret = coma->GetLocal( coma, length, &arg ); + if (ret) { + VOODOO_PARSER_END( parser ); + return ret; + } + + VOODOO_PARSER_READ_DATA( parser, arg, length ); + } + else + arg = NULL; + + VOODOO_PARSER_END( parser ); + + ret = real->Call( real, method, arg, &ret_val ); + if (ret) + return ret; + + if (arg) + return voodoo_manager_respond( manager, true, msg->header.serial, + DR_OK, VOODOO_INSTANCE_NONE, + VMBT_DATA, length, arg, + VMBT_INT, ret_val, + VMBT_NONE ); + + return voodoo_manager_respond( manager, true, msg->header.serial, + DR_OK, VOODOO_INSTANCE_NONE, + VMBT_INT, ret_val, + VMBT_NONE ); +} + +/**********************************************************************************************************************/ + +typedef struct { + VoodooManager *manager; + VoodooInstanceID instance; + + IComa *coma; +} Listener_Requestor; + +static void +Listener_Request( void *ctx, + void *arg ) +{ + DirectResult ret; + Listener_Requestor *requestor = ctx; + IComa_data *coma_data; + int size; + + coma_data = (IComa_data *) requestor->coma->priv; + + ret = coma_allocation_size( coma_data->coma, arg, &size ); + if (ret) { + D_DERROR( ret, "IComaComponent_Dispatcher/Listener_Request: Could not lookup allocation size!\n" ); + return; + } + + ret = voodoo_manager_request( requestor->manager, requestor->instance, 0, VREQ_NONE, NULL, + VMBT_DATA, size, arg, + VMBT_NONE ); + if (ret) + D_DERROR( ret, "IComaComponent_Dispatcher/Listener_Request: Request failed!\n" ); +} + +static DirectResult +Dispatch_Listen( IComaComponent *thiz, IComaComponent *real, + VoodooManager *manager, VoodooRequestMessage *msg ) +{ + DirectResult ret; + ComaNotificationID notification; + VoodooInstanceID instance; + VoodooMessageParser parser; + Listener_Requestor *requestor; + + DIRECT_INTERFACE_GET_DATA(IComaComponent_Dispatcher) + + VOODOO_PARSER_BEGIN( parser, msg ); + VOODOO_PARSER_GET_UINT( parser, notification ); + VOODOO_PARSER_GET_ID( parser, instance ); + VOODOO_PARSER_END( parser ); + + if (!coma_policy_check_notification( data->coma_name, data->component_name, notification )) + return DR_ACCESSDENIED; + + requestor = D_CALLOC( 1, sizeof(Listener_Requestor) ); + if (!requestor) + return D_OOM(); + + requestor->manager = data->manager; + requestor->instance = instance; + requestor->coma = data->coma; + + ret = real->Listen( real, notification, Listener_Request, requestor ); + if (ret) { + D_FREE( requestor ); + return ret; + } + + direct_hash_insert( data->listeners, notification, requestor ); + + return voodoo_manager_respond( manager, true, msg->header.serial, + DR_OK, VOODOO_INSTANCE_NONE, + VMBT_NONE ); +} + +static DirectResult +Dispatch_Unlisten( IComaComponent *thiz, IComaComponent *real, + VoodooManager *manager, VoodooRequestMessage *msg ) +{ + DirectResult ret; + ComaNotificationID notification; + VoodooMessageParser parser; + Listener_Requestor *requestor; + + DIRECT_INTERFACE_GET_DATA(IComaComponent_Dispatcher) + + VOODOO_PARSER_BEGIN( parser, msg ); + VOODOO_PARSER_GET_UINT( parser, notification ); + VOODOO_PARSER_END( parser ); + + requestor = direct_hash_lookup( data->listeners, notification ); + if (!requestor) + return DR_IDNOTFOUND; + + ret = real->Unlisten( real, notification ); + if (ret) { + D_DERROR( ret, "IComaComponent_Dispatcher: Unlisten failed!\n" ); + return ret; + } + + direct_hash_remove( data->listeners, notification ); + + D_FREE( requestor ); + + return voodoo_manager_respond( manager, true, msg->header.serial, + DR_OK, VOODOO_INSTANCE_NONE, + VMBT_NONE ); +} + +/**********************************************************************************************************************/ + +static DirectResult +Dispatch( void *dispatcher, void *real, VoodooManager *manager, VoodooRequestMessage *msg ) +{ + D_DEBUG( "IComaComponent/Dispatcher: " + "Handling request for instance %u with method %u...\n", msg->instance, msg->method ); + + switch (msg->method) { + case ICOMACOMPONENT_METHOD_ID_Call: + return Dispatch_Call( dispatcher, real, manager, msg ); + + case ICOMACOMPONENT_METHOD_ID_Listen: + return Dispatch_Listen( dispatcher, real, manager, msg ); + + case ICOMACOMPONENT_METHOD_ID_Unlisten: + return Dispatch_Unlisten( dispatcher, real, manager, msg ); + } + + return DR_NOSUCHMETHOD; +} + +/**************************************************************************************************/ + +static DirectResult +Probe() +{ + /* This implementation has to be loaded explicitly. */ + return DR_UNSUPPORTED; +} + +/* + * Constructor + * + * Fills in function pointers and intializes data structure. + */ +static DirectResult +Construct( IComaComponent *thiz, + IComaComponent *real, + VoodooManager *manager, + VoodooInstanceID super, + void *arg, /* Optional arguments to constructor */ + VoodooInstanceID *ret_instance ) +{ + DirectResult ret; + VoodooInstanceID instance; + + DIRECT_ALLOCATE_INTERFACE_DATA(thiz, IComaComponent_Dispatcher) + + ret = voodoo_manager_register_local( manager, false, thiz, real, Dispatch, &instance ); + if (ret) { + DIRECT_DEALLOCATE_INTERFACE( thiz ); + return ret; + } + + IComaComponent_data *real_data = real->priv; + + data->ref = 1; + data->real = real; + data->super = super; + data->self = instance; + data->manager = manager; + data->coma = arg; + + data->coma_name = D_STRDUP( real_data->coma->name ); + data->component_name = D_STRDUP( real_data->component->name ); + + ret = direct_hash_create( 17, &data->listeners ); + if (ret) { + DIRECT_DEALLOCATE_INTERFACE( thiz ); + return ret; + } + + thiz->AddRef = IComaComponent_Dispatcher_AddRef; + thiz->Release = IComaComponent_Dispatcher_Release; + + *ret_instance = instance; + + return DR_OK; +} + |