15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This file provides infrastructure for dispatching host resource call 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// messages. Normal IPC message handlers can't take extra parameters or 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// return values. We want to take a HostMessageContext as a parameter and 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// also return the int32_t return value to the caller. 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef PPAPI_HOST_DISPATCH_HOST_MESSAGE_H_ 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define PPAPI_HOST_DISPATCH_HOST_MESSAGE_H_ 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 131320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci#include "base/profiler/scoped_profile.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ipc/ipc_message_macros.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/c/pp_errors.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace ppapi { 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace host { 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)struct HostMessageContext; 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)template <class ObjT, class Method> 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline int32_t DispatchResourceCall(ObjT* obj, Method method, 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) HostMessageContext* context, 25c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) Tuple0& arg) { 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (obj->*method)(context); 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)template <class ObjT, class Method, class A> 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline int32_t DispatchResourceCall(ObjT* obj, Method method, 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) HostMessageContext* context, 32c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) Tuple1<A>& arg) { 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (obj->*method)(context, arg.a); 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)template<class ObjT, class Method, class A, class B> 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline int32_t DispatchResourceCall(ObjT* obj, Method method, 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) HostMessageContext* context, 39c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) Tuple2<A, B>& arg) { 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (obj->*method)(context, arg.a, arg.b); 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)template<class ObjT, class Method, class A, class B, class C> 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline int32_t DispatchResourceCall(ObjT* obj, Method method, 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) HostMessageContext* context, 46c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) Tuple3<A, B, C>& arg) { 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (obj->*method)(context, arg.a, arg.b, arg.c); 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)template<class ObjT, class Method, class A, class B, class C, class D> 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline int32_t DispatchResourceCall(ObjT* obj, Method method, 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) HostMessageContext* context, 53c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) Tuple4<A, B, C, D>& arg) { 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (obj->*method)(context, arg.a, arg.b, arg.c, arg.d); 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)template<class ObjT, class Method, class A, class B, class C, class D, class E> 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)inline int32_t DispatchResourceCall(ObjT* obj, Method method, 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) HostMessageContext* context, 60c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) Tuple5<A, B, C, D, E>& arg) { 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (obj->*method)(context, arg.a, arg.b, arg.c, arg.d, arg.e); 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Note that this only works for message with 1 or more parameters. For 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 0-parameter messages you need to use the _0 version below (since there are 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// no params in the message). 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define PPAPI_DISPATCH_HOST_RESOURCE_CALL(msg_class, member_func) \ 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case msg_class::ID: { \ 691320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci TRACK_RUN_IN_THIS_SCOPED_REGION(member_func); \ 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) msg_class::Schema::Param p; \ 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (msg_class::Read(&ipc_message__, &p)) { \ 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return ppapi::host::DispatchResourceCall( \ 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) this, \ 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &_IpcMessageHandlerClass::member_func, \ 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) context, p); \ 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } \ 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return PP_ERROR_FAILED; \ 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(msg_class, member_func) \ 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case msg_class::ID: { \ 821320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci TRACK_RUN_IN_THIS_SCOPED_REGION(member_func); \ 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return member_func(context); \ 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace host 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ppapi 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // PPAPI_HOST_DISPATCH_HOST_MESSAGE_H_ 90