| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ppapi/shared_impl/ppb_trace_event_impl.h" |
| |
| #include "base/debug/trace_event.h" |
| #include "ppapi/thunk/thunk.h" |
| |
| |
| namespace ppapi { |
| |
| // PPB_Trace_Event_Dev is a shared implementation because Trace Events can be |
| // sent from either the plugin process or renderer process depending on whether |
| // the plugin is in- or out-of-process. Also, for NaCl plugins these functions |
| // will be executed from untrusted code and handled appropriately by tracing |
| // functionality in the IRT. |
| |
| // static |
| void* TraceEventImpl::GetCategoryEnabled(const char* category_name) { |
| // This casting is here because all mem_t return types in Pepper are void* and |
| // non-const. All mem_t parameters are const void* so there is no way to |
| // return a pointer type to the caller without some const_cast. The pointer |
| // type the tracing system works with is normally unsigned char*. |
| return const_cast<void*>(static_cast<const void*>( |
| base::debug::TraceLog::GetInstance()->GetCategoryGroupEnabled( |
| category_name))); |
| } |
| |
| // static |
| void TraceEventImpl::AddTraceEvent(int8_t phase, |
| const void* category_enabled, |
| const char* name, |
| uint64_t id, |
| uint32_t num_args, |
| const char* arg_names[], |
| const uint8_t arg_types[], |
| const uint64_t arg_values[], |
| uint8_t flags) { |
| base::debug::TraceLog::GetInstance()->AddTraceEvent(phase, |
| static_cast<const unsigned char*>(category_enabled), name, id, num_args, |
| arg_names, arg_types, |
| // This cast is necessary for LP64 systems, where uint64_t is defined as |
| // an unsigned long int, but trace_event internals are hermetic and |
| // accepts an |unsigned long long*|. The pointer types are compatible but |
| // the compiler throws an error without an explicit cast. |
| reinterpret_cast<const unsigned long long*>(arg_values), NULL, flags); |
| } |
| |
| // static |
| void TraceEventImpl::SetThreadName(const char* thread_name) { |
| base::PlatformThread::SetName(thread_name); |
| } |
| |
| namespace { |
| |
| const PPB_Trace_Event_Dev g_ppb_trace_event_thunk = { |
| &TraceEventImpl::GetCategoryEnabled, |
| &TraceEventImpl::AddTraceEvent, |
| &TraceEventImpl::SetThreadName, |
| }; |
| |
| } // namespace ppapi |
| |
| } // namespace |
| |
| namespace ppapi { |
| namespace thunk { |
| |
| const PPB_Trace_Event_Dev_0_1* GetPPB_Trace_Event_Dev_0_1_Thunk() { |
| return &g_ppb_trace_event_thunk; |
| } |
| |
| } // namespace thunk |
| } // namespace ppapi |