ppapi/nacl_irt/irt_ppapi.cc

   1 // Copyright 2014 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 "native_client/src/public/irt_core.h"
   6 #include "native_client/src/trusted/service_runtime/include/sys/unistd.h"
   7 #include "native_client/src/untrusted/irt/irt.h"
   8 #include "native_client/src/untrusted/irt/irt_private.h"
   9 #include "ppapi/nacl_irt/irt_manifest.h"
  10 #include "ppapi/nacl_irt/irt_ppapi.h"
  11 #include "ppapi/nacl_irt/plugin_main.h"
  12 #include "ppapi/nacl_irt/public/irt_ppapi.h"
  13 #include "ppapi/native_client/src/untrusted/pnacl_irt_shim/irt_shim_ppapi.h"
  14
  15 static struct PP_StartFunctions g_pp_functions;
  16
  17 int irt_ppapi_start(const struct PP_StartFunctions* funcs) {
  18   // Disable NaCl's open_resource() interface on this thread.
  19   g_is_main_thread = 1;
  20
  21   g_pp_functions = *funcs;
  22   return PpapiPluginMain();
  23 }
  24
  25 int32_t PPP_InitializeModule(PP_Module module_id,
  26                              PPB_GetInterface get_browser_interface) {
  27   return g_pp_functions.PPP_InitializeModule(module_id, get_browser_interface);
  28 }
  29
  30 void PPP_ShutdownModule(void) {
  31   g_pp_functions.PPP_ShutdownModule();
  32 }
  33
  34 const void* PPP_GetInterface(const char* interface_name) {
  35   return g_pp_functions.PPP_GetInterface(interface_name);
  36 }
  37
  38 static const struct nacl_irt_ppapihook nacl_irt_ppapihook = {
  39   irt_ppapi_start,
  40   PpapiPluginRegisterThreadCreator,
  41 };
  42
  43 static int ppapihook_pnacl_private_filter(void) {
  44   int pnacl_mode = sysconf(NACL_ABI__SC_NACL_PNACL_MODE);
  45   if (pnacl_mode == -1)
  46     return 0;
  47   return pnacl_mode;
  48 }
  49
  50 static const nacl_irt_resource_open kIrtResourceOpen = {
  51   ppapi::IrtOpenResource,
  52 };
  53
  54 static int not_pnacl_filter(void) {
  55   int pnacl_mode = sysconf(NACL_ABI__SC_NACL_PNACL_MODE);
  56   if (pnacl_mode == -1)
  57     return 0;
  58   return !pnacl_mode;
  59 }
  60
  61 static const struct nacl_irt_interface irt_interfaces[] = {
  62   { NACL_IRT_PPAPIHOOK_v0_1, &nacl_irt_ppapihook, sizeof(nacl_irt_ppapihook),
  63     NULL },
  64   { NACL_IRT_PPAPIHOOK_PNACL_PRIVATE_v0_1,
  65     &nacl_irt_ppapihook_pnacl_private, sizeof(nacl_irt_ppapihook_pnacl_private),
  66     ppapihook_pnacl_private_filter },
  67   { NACL_IRT_RESOURCE_OPEN_v0_1, &kIrtResourceOpen,
  68     sizeof(kIrtResourceOpen), not_pnacl_filter },
  69 };
  70
  71 size_t chrome_irt_query(const char* interface_ident,
  72                         void* table, size_t tablesize) {
  73   size_t result = nacl_irt_query_list(interface_ident,
  74                                       table,
  75                                       tablesize,
  76                                       irt_interfaces,
  77                                       sizeof(irt_interfaces));
  78   if (result != 0)
  79     return result;
  80   return nacl_irt_query_core(interface_ident, table, tablesize);
  81 }