native_client_sdk/src/libraries/ppapi_simple_cpp/ps_entrypoints_cpp.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include <ppapi/c/pp_errors.h>
   6 #include <ppapi/c/pp_module.h>
   7 #include <ppapi/c/ppb.h>
   8 #include <ppapi/c/ppp.h>
   9 #include <ppapi/cpp/instance.h>
  10 #include <ppapi/cpp/module.h>
  11
  12 #include "ppapi_simple/ps_interface.h"
  13 #include "ppapi_simple/ps_internal.h"
  14
  15 class PSModule : public pp::Module {
  16  public:
  17   virtual pp::Instance* CreateInstance(PP_Instance instance) {
  18     // Should not get here.
  19     // This is only called by libppapi_cpp in Instance_DidCreate. That function
  20     // is called by the PPP_Instance handler in libppapi_cpp, but we handle all
  21     // plugin interfaces in ppapi_simple.
  22     assert(0);
  23     return NULL;
  24   }
  25 };
  26
  27 static PSModule* s_module;
  28
  29 namespace pp {
  30
  31 Module* Module::Get() {
  32   return s_module;
  33 }
  34
  35 // This shouldn't be called (it is only referenced by PPP_InitialzeModule in
  36 // ppapi_cpp, which we override), but is needed to successfully link.
  37 Module* CreateModule() {
  38   assert(0);
  39   return NULL;
  40 }
  41
  42 }  // namespace pp
  43
  44 extern "C" {
  45
  46 // This is defined to allow an executable to force inclusion of this object
  47 // file. Otherwise PPP_* functions won't be linked in (because they are not
  48 // needed until -lppapi on the link-line, which is usually last.
  49 FORCE_LINK_THIS(ps_entry)
  50
  51 }  // extern "C"
  52
  53 int32_t PPP_InitializeModule(PP_Module module_id,
  54                              PPB_GetInterface get_interface) {
  55   g_ps_get_interface = get_interface;
  56   PSInterfaceInit();
  57
  58   PSModule* module = new PSModule();
  59   if (!module->InternalInit(module_id, get_interface)) {
  60     delete s_module;
  61     return PP_ERROR_FAILED;
  62   }
  63   s_module = module;
  64   return PP_OK;
  65 }
  66
  67 const void* PPP_GetInterface(const char* interface_name) {
  68   return PSGetInterfaceImplementation(interface_name);
  69 }
  70
  71 void PPP_ShutdownModule(void) {
  72   delete s_module;
  73   s_module = NULL;
  74 }