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 3 // found in the LICENSE file. 4 5 #include "ppapi/shared_impl/ppapi_globals.h" 6 7 #include "base/lazy_instance.h" // For testing purposes only. 8 #include "base/logging.h" 9 #include "base/message_loop/message_loop_proxy.h" 10 #include "base/threading/thread_local.h" // For testing purposes only. 11 12 namespace ppapi { 13 14 namespace { 15 // Thread-local globals for testing. See SetPpapiGlobalsOnThreadForTest for more 16 // information. 17 base::LazyInstance<base::ThreadLocalPointer<PpapiGlobals> >::Leaky 18 tls_ppapi_globals_for_test = LAZY_INSTANCE_INITIALIZER; 19 } // namespace 20 21 PpapiGlobals* ppapi_globals = NULL; 22 PpapiGlobals()23PpapiGlobals::PpapiGlobals() { 24 DCHECK(!ppapi_globals); 25 ppapi_globals = this; 26 main_loop_proxy_ = base::MessageLoopProxy::current(); 27 } 28 PpapiGlobals(PerThreadForTest)29PpapiGlobals::PpapiGlobals(PerThreadForTest) { 30 DCHECK(!ppapi_globals); 31 main_loop_proxy_ = base::MessageLoopProxy::current(); 32 } 33 ~PpapiGlobals()34PpapiGlobals::~PpapiGlobals() { 35 DCHECK(ppapi_globals == this || !ppapi_globals); 36 ppapi_globals = NULL; 37 } 38 39 // Static Getter for the global singleton. Get()40PpapiGlobals* PpapiGlobals::Get() { 41 if (ppapi_globals) 42 return ppapi_globals; 43 // In unit tests, the following might be valid (see 44 // SetPpapiGlobalsOnThreadForTest). Normally, this will just return NULL. 45 return GetThreadLocalPointer(); 46 } 47 48 // static SetPpapiGlobalsOnThreadForTest(PpapiGlobals * ptr)49void PpapiGlobals::SetPpapiGlobalsOnThreadForTest(PpapiGlobals* ptr) { 50 // If we're using a per-thread PpapiGlobals, we should not have a global one. 51 // If we allowed it, it would always over-ride the "test" versions. 52 DCHECK(!ppapi_globals); 53 tls_ppapi_globals_for_test.Pointer()->Set(ptr); 54 } 55 GetMainThreadMessageLoop()56base::MessageLoopProxy* PpapiGlobals::GetMainThreadMessageLoop() { 57 return main_loop_proxy_.get(); 58 } 59 ResetMainThreadMessageLoopForTesting()60void PpapiGlobals::ResetMainThreadMessageLoopForTesting() { 61 main_loop_proxy_ = base::MessageLoopProxy::current(); 62 } 63 IsHostGlobals() const64bool PpapiGlobals::IsHostGlobals() const { return false; } 65 IsPluginGlobals() const66bool PpapiGlobals::IsPluginGlobals() const { return false; } 67 MarkPluginIsActive()68void PpapiGlobals::MarkPluginIsActive() {} 69 AddLatencyInfo(const ui::LatencyInfo & latency_info,PP_Instance instance)70void PpapiGlobals::AddLatencyInfo(const ui::LatencyInfo& latency_info, 71 PP_Instance instance) { 72 latency_info_for_frame_[instance].push_back(latency_info); 73 } 74 TransferLatencyInfoTo(std::vector<ui::LatencyInfo> * latency_info,PP_Instance instance)75void PpapiGlobals::TransferLatencyInfoTo( 76 std::vector<ui::LatencyInfo>* latency_info, PP_Instance instance) { 77 latency_info->swap(latency_info_for_frame_[instance]); 78 latency_info_for_frame_.erase(instance); 79 } 80 81 // static GetThreadLocalPointer()82PpapiGlobals* PpapiGlobals::GetThreadLocalPointer() { 83 return tls_ppapi_globals_for_test.Pointer()->Get(); 84 } 85 86 } // namespace ppapi 87