| // 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/threading/platform_thread.h" |
| #include "base/trace_event/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::trace_event::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) { |
| |
| static_assert(sizeof(unsigned long long) == sizeof(uint64_t), |
| "unexpected data type sizes"); |
| // NOTE: The |arg_values| cast is required to avoid a compiler warning, |
| // since uint64_t and unsigned long long are not the same type, even |
| // though they have the same size, on all platforms we care about. |
| base::trace_event::TraceArguments args( |
| num_args, arg_names, arg_types, |
| reinterpret_cast<const unsigned long long*>(arg_values)); |
| base::trace_event::TraceLog::GetInstance()->AddTraceEvent( |
| phase, static_cast<const unsigned char*>(category_enabled), name, |
| trace_event_internal::kGlobalScope, id, &args, flags); |
| } |
| |
| // static |
| void TraceEventImpl::AddTraceEventWithThreadIdAndTimestamp( |
| int8_t phase, |
| const void* category_enabled, |
| const char* name, |
| uint64_t id, |
| int32_t thread_id, |
| int64_t timestamp, |
| uint32_t num_args, |
| const char* arg_names[], |
| const uint8_t arg_types[], |
| const uint64_t arg_values[], |
| uint8_t flags) { |
| // See above comment about the cast to |const unsigned long long*|. |
| base::trace_event::TraceArguments args( |
| num_args, arg_names, arg_types, |
| reinterpret_cast<const unsigned long long*>(arg_values)); |
| base::trace_event::TraceLog::GetInstance() |
| ->AddTraceEventWithThreadIdAndTimestamp( |
| phase, static_cast<const unsigned char*>(category_enabled), name, |
| trace_event_internal::kGlobalScope, id, trace_event_internal::kNoId, |
| thread_id, base::TimeTicks::FromInternalValue(timestamp), &args, |
| flags); |
| } |
| |
| // static |
| int64_t TraceEventImpl::Now() { |
| return base::TimeTicks::Now().ToInternalValue(); |
| } |
| |
| // static |
| void TraceEventImpl::SetThreadName(const char* thread_name) { |
| base::PlatformThread::SetName(thread_name); |
| } |
| |
| namespace { |
| |
| const PPB_Trace_Event_Dev_0_1 g_ppb_trace_event_thunk_0_1 = { |
| &TraceEventImpl::GetCategoryEnabled, &TraceEventImpl::AddTraceEvent, |
| &TraceEventImpl::SetThreadName, }; |
| |
| const PPB_Trace_Event_Dev_0_2 g_ppb_trace_event_thunk_0_2 = { |
| &TraceEventImpl::GetCategoryEnabled, |
| &TraceEventImpl::AddTraceEvent, |
| &TraceEventImpl::AddTraceEventWithThreadIdAndTimestamp, |
| &TraceEventImpl::Now, |
| &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_0_1; |
| } |
| |
| const PPB_Trace_Event_Dev_0_2* GetPPB_Trace_Event_Dev_0_2_Thunk() { |
| return &g_ppb_trace_event_thunk_0_2; |
| } |
| |
| } // namespace thunk |
| } // namespace ppapi |