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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "ppapi/proxy/interface_list.h" | 5 #include "ppapi/proxy/interface_list.h" |
6 | 6 |
7 #include "base/hash.h" | 7 #include "base/hash.h" |
8 #include "base/lazy_instance.h" | 8 #include "base/lazy_instance.h" |
9 #include "base/memory/singleton.h" | 9 #include "base/memory/singleton.h" |
10 #include "ppapi/c/dev/ppb_audio_input_dev.h" | 10 #include "ppapi/c/dev/ppb_audio_input_dev.h" |
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312 AddPPP(PPP_VIDEODECODER_DEV_INTERFACE, | 312 AddPPP(PPP_VIDEODECODER_DEV_INTERFACE, |
313 PPP_VideoDecoder_Proxy::GetProxyInterface()); | 313 PPP_VideoDecoder_Proxy::GetProxyInterface()); |
314 #endif | 314 #endif |
315 } | 315 } |
316 | 316 |
317 InterfaceList::~InterfaceList() { | 317 InterfaceList::~InterfaceList() { |
318 } | 318 } |
319 | 319 |
320 // static | 320 // static |
321 InterfaceList* InterfaceList::GetInstance() { | 321 InterfaceList* InterfaceList::GetInstance() { |
322 // CAUTION: This function is called without the ProxyLock to avoid excessive | |
323 // excessive locking from C++ wrappers. (See also GetBrowserInterface.) | |
324 return Singleton<InterfaceList>::get(); | 322 return Singleton<InterfaceList>::get(); |
325 } | 323 } |
326 | 324 |
327 // static | 325 // static |
328 void InterfaceList::SetProcessGlobalPermissions( | 326 void InterfaceList::SetProcessGlobalPermissions( |
329 const PpapiPermissions& permissions) { | 327 const PpapiPermissions& permissions) { |
330 g_process_global_permissions.Get() = permissions; | 328 g_process_global_permissions.Get() = permissions; |
331 } | 329 } |
332 | 330 |
333 InterfaceProxy::Factory InterfaceList::GetFactoryForID(ApiID id) const { | 331 InterfaceProxy::Factory InterfaceList::GetFactoryForID(ApiID id) const { |
334 int index = static_cast<int>(id); | 332 int index = static_cast<int>(id); |
335 COMPILE_ASSERT(API_ID_NONE == 0, none_must_be_zero); | 333 COMPILE_ASSERT(API_ID_NONE == 0, none_must_be_zero); |
336 if (id <= 0 || id >= API_ID_COUNT) | 334 if (id <= 0 || id >= API_ID_COUNT) |
337 return NULL; | 335 return NULL; |
338 return id_to_factory_[index]; | 336 return id_to_factory_[index]; |
339 } | 337 } |
340 | 338 |
341 const void* InterfaceList::GetInterfaceForPPB(const std::string& name) { | 339 const void* InterfaceList::GetInterfaceForPPB(const std::string& name) { |
342 // CAUTION: This function is called without the ProxyLock to avoid excessive | |
343 // excessive locking from C++ wrappers. (See also GetBrowserInterface.) | |
344 NameToInterfaceInfoMap::iterator found = | 340 NameToInterfaceInfoMap::iterator found = |
345 name_to_browser_info_.find(name); | 341 name_to_browser_info_.find(name); |
346 if (found == name_to_browser_info_.end()) | 342 if (found == name_to_browser_info_.end()) |
347 return NULL; | 343 return NULL; |
348 | 344 |
349 if (g_process_global_permissions.Get().HasPermission( | 345 if (g_process_global_permissions.Get().HasPermission( |
350 found->second->required_permission())) { | 346 found->second.required_permission)) { |
351 // Only log interface use once per plugin. | 347 // Only log interface use once per plugin. |
352 found->second->LogWithUmaOnce( | 348 if (!found->second.interface_logged) { |
353 PluginGlobals::Get()->GetBrowserSender(), name); | 349 PluginGlobals::Get()->GetBrowserSender()->Send( |
354 return found->second->iface(); | 350 new PpapiHostMsg_LogInterfaceUsage(HashInterfaceName(name))); |
| 351 found->second.interface_logged = true; |
| 352 } |
| 353 return found->second.iface; |
355 } | 354 } |
356 return NULL; | 355 return NULL; |
357 } | 356 } |
358 | 357 |
359 const void* InterfaceList::GetInterfaceForPPP(const std::string& name) const { | 358 const void* InterfaceList::GetInterfaceForPPP(const std::string& name) const { |
360 NameToInterfaceInfoMap::const_iterator found = | 359 NameToInterfaceInfoMap::const_iterator found = |
361 name_to_plugin_info_.find(name); | 360 name_to_plugin_info_.find(name); |
362 if (found == name_to_plugin_info_.end()) | 361 if (found == name_to_plugin_info_.end()) |
363 return NULL; | 362 return NULL; |
364 return found->second->iface(); | 363 return found->second.iface; |
365 } | |
366 | |
367 void InterfaceList::InterfaceInfo::LogWithUmaOnce( | |
368 IPC::Sender* sender, const std::string& name) { | |
369 { | |
370 base::AutoLock acquire(sent_to_uma_lock_); | |
371 if (sent_to_uma_) | |
372 return; | |
373 sent_to_uma_ = true; | |
374 } | |
375 int hash = InterfaceList::HashInterfaceName(name); | |
376 PluginGlobals::Get()->GetBrowserSender()->Send( | |
377 new PpapiHostMsg_LogInterfaceUsage(hash)); | |
378 } | 364 } |
379 | 365 |
380 void InterfaceList::AddProxy(ApiID id, | 366 void InterfaceList::AddProxy(ApiID id, |
381 InterfaceProxy::Factory factory) { | 367 InterfaceProxy::Factory factory) { |
382 // For interfaces with no corresponding _Proxy objects, the macros will | 368 // For interfaces with no corresponding _Proxy objects, the macros will |
383 // generate calls to this function with API_ID_NONE. This means we | 369 // generate calls to this function with API_ID_NONE. This means we |
384 // should just skip adding a factory for these functions. | 370 // should just skip adding a factory for these functions. |
385 if (id == API_ID_NONE) | 371 if (id == API_ID_NONE) |
386 return; | 372 return; |
387 | 373 |
388 // The factory should be an exact dupe of the one we already have if it | 374 // The factory should be an exact dupe of the one we already have if it |
389 // has already been registered before. | 375 // has already been registered before. |
390 int index = static_cast<int>(id); | 376 int index = static_cast<int>(id); |
391 DCHECK(!id_to_factory_[index] || id_to_factory_[index] == factory); | 377 DCHECK(!id_to_factory_[index] || id_to_factory_[index] == factory); |
392 | 378 |
393 id_to_factory_[index] = factory; | 379 id_to_factory_[index] = factory; |
394 } | 380 } |
395 | 381 |
396 void InterfaceList::AddPPB(const char* name, | 382 void InterfaceList::AddPPB(const char* name, |
397 const void* iface, | 383 const void* iface, |
398 Permission perm) { | 384 Permission perm) { |
399 DCHECK(name_to_browser_info_.find(name) == name_to_browser_info_.end()); | 385 DCHECK(name_to_browser_info_.find(name) == name_to_browser_info_.end()); |
400 name_to_browser_info_.add( | 386 name_to_browser_info_[name] = InterfaceInfo(iface, perm); |
401 name, scoped_ptr<InterfaceInfo>(new InterfaceInfo(iface, perm))); | |
402 } | 387 } |
403 | 388 |
404 void InterfaceList::AddPPP(const char* name, | 389 void InterfaceList::AddPPP(const char* name, |
405 const void* iface) { | 390 const void* iface) { |
406 DCHECK(name_to_plugin_info_.find(name) == name_to_plugin_info_.end()); | 391 DCHECK(name_to_plugin_info_.find(name) == name_to_plugin_info_.end()); |
407 name_to_plugin_info_.add( | 392 name_to_plugin_info_[name] = InterfaceInfo(iface, PERMISSION_NONE); |
408 name, | |
409 scoped_ptr<InterfaceInfo>(new InterfaceInfo(iface, PERMISSION_NONE))); | |
410 } | 393 } |
411 | 394 |
| 395 // static |
412 int InterfaceList::HashInterfaceName(const std::string& name) { | 396 int InterfaceList::HashInterfaceName(const std::string& name) { |
413 uint32 data = base::Hash(name.c_str(), name.size()); | 397 uint32 data = base::Hash(name.c_str(), name.size()); |
414 // Strip off the signed bit because UMA doesn't support negative values, | 398 // Strip off the signed bit because UMA doesn't support negative values, |
415 // but takes a signed int as input. | 399 // but takes a signed int as input. |
416 return static_cast<int>(data & 0x7fffffff); | 400 return static_cast<int>(data & 0x7fffffff); |
417 } | 401 } |
418 | 402 |
419 } // namespace proxy | 403 } // namespace proxy |
420 } // namespace ppapi | 404 } // namespace ppapi |
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