diff options
Diffstat (limited to 'base/trace_event/trace_event_etw_export_win.cc')
| -rw-r--r-- | base/trace_event/trace_event_etw_export_win.cc | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/base/trace_event/trace_event_etw_export_win.cc b/base/trace_event/trace_event_etw_export_win.cc deleted file mode 100644 index d199bf5c8b..0000000000 --- a/base/trace_event/trace_event_etw_export_win.cc +++ /dev/null @@ -1,252 +0,0 @@ -// Copyright 2015 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 "base/trace_event/trace_event_etw_export_win.h" - -#include "base/command_line.h" -#include "base/logging.h" -#include "base/memory/singleton.h" -#include "base/strings/utf_string_conversions.h" -#include "base/trace_event/trace_event.h" -#include "base/trace_event/trace_event_impl.h" - -// The GetProcAddress technique is borrowed from -// https://github.com/google/UIforETW/tree/master/ETWProviders -// -// EVNTAPI is used in evntprov.h which is included by chrome_events_win.h. -// We define EVNTAPI without the DECLSPEC_IMPORT specifier so that we can -// implement these functions locally instead of using the import library, and -// can therefore still run on Windows XP. -#define EVNTAPI __stdcall -// Include the event register/write/unregister macros compiled from the manifest -// file. Note that this includes evntprov.h which requires a Vista+ Windows SDK. -// -// In SHARED_INTERMEDIATE_DIR. -#include "base/trace_event/etw_manifest/chrome_events_win.h" // NOLINT - -namespace { -// Typedefs for use with GetProcAddress -typedef ULONG(__stdcall* tEventRegister)(LPCGUID ProviderId, - PENABLECALLBACK EnableCallback, - PVOID CallbackContext, - PREGHANDLE RegHandle); -typedef ULONG(__stdcall* tEventWrite)(REGHANDLE RegHandle, - PCEVENT_DESCRIPTOR EventDescriptor, - ULONG UserDataCount, - PEVENT_DATA_DESCRIPTOR UserData); -typedef ULONG(__stdcall* tEventUnregister)(REGHANDLE RegHandle); - -tEventRegister EventRegisterProc = nullptr; -tEventWrite EventWriteProc = nullptr; -tEventUnregister EventUnregisterProc = nullptr; -} // namespace - -// Redirector function for EventRegister. Called by macros in -// chrome_events_win.h -ULONG EVNTAPI EventRegister(LPCGUID ProviderId, - PENABLECALLBACK EnableCallback, - PVOID CallbackContext, - PREGHANDLE RegHandle) { - if (EventRegisterProc) - return EventRegisterProc(ProviderId, EnableCallback, CallbackContext, - RegHandle); - *RegHandle = 0; - return 0; -} - -// Redirector function for EventWrite. Called by macros in -// chrome_events_win.h -ULONG EVNTAPI EventWrite(REGHANDLE RegHandle, - PCEVENT_DESCRIPTOR EventDescriptor, - ULONG UserDataCount, - PEVENT_DATA_DESCRIPTOR UserData) { - if (EventWriteProc) - return EventWriteProc(RegHandle, EventDescriptor, UserDataCount, UserData); - return 0; -} - -// Redirector function for EventUnregister. Called by macros in -// chrome_events_win.h -ULONG EVNTAPI EventUnregister(REGHANDLE RegHandle) { - if (EventUnregisterProc) - return EventUnregisterProc(RegHandle); - return 0; -} - -namespace base { -namespace trace_event { - -TraceEventETWExport::TraceEventETWExport() : ETWExportEnabled_(false) { - // Find Advapi32.dll. This should always succeed. - HMODULE AdvapiDLL = ::LoadLibraryW(L"Advapi32.dll"); - if (AdvapiDLL) { - // Try to find the ETW functions. This will fail on XP. - EventRegisterProc = reinterpret_cast<tEventRegister>( - ::GetProcAddress(AdvapiDLL, "EventRegister")); - EventWriteProc = reinterpret_cast<tEventWrite>( - ::GetProcAddress(AdvapiDLL, "EventWrite")); - EventUnregisterProc = reinterpret_cast<tEventUnregister>( - ::GetProcAddress(AdvapiDLL, "EventUnregister")); - - // Register the ETW provider. If registration fails then the event logging - // calls will fail (on XP this call will do nothing). - EventRegisterChrome(); - } -} - -TraceEventETWExport::~TraceEventETWExport() { - EventUnregisterChrome(); -} - -// static -TraceEventETWExport* TraceEventETWExport::GetInstance() { - return Singleton<TraceEventETWExport, - StaticMemorySingletonTraits<TraceEventETWExport>>::get(); -} - -// static -void TraceEventETWExport::EnableETWExport() { - if (GetInstance()) - GetInstance()->ETWExportEnabled_ = true; -} - -// static -void TraceEventETWExport::DisableETWExport() { - if (GetInstance()) - GetInstance()->ETWExportEnabled_ = false; -} - -// static -void TraceEventETWExport::AddEvent( - char phase, - const unsigned char* category_group_enabled, - const char* name, - unsigned long long id, - int num_args, - const char** arg_names, - const unsigned char* arg_types, - const unsigned long long* arg_values, - const scoped_refptr<ConvertableToTraceFormat>* convertable_values) { - // We bail early in case exporting is disabled or no consumer is listening. - if (!GetInstance() || !GetInstance()->ETWExportEnabled_ || - !EventEnabledChromeEvent()) - return; - - const char* phase_string = nullptr; - // Space to store the phase identifier and null-terminator, when needed. - char phase_buffer[2]; - switch (phase) { - case TRACE_EVENT_PHASE_BEGIN: - phase_string = "Begin"; - break; - case TRACE_EVENT_PHASE_END: - phase_string = "End"; - break; - case TRACE_EVENT_PHASE_COMPLETE: - phase_string = "Complete"; - break; - case TRACE_EVENT_PHASE_INSTANT: - phase_string = "Instant"; - break; - case TRACE_EVENT_PHASE_ASYNC_BEGIN: - phase_string = "Async Begin"; - break; - case TRACE_EVENT_PHASE_ASYNC_STEP_INTO: - phase_string = "Async Step Into"; - break; - case TRACE_EVENT_PHASE_ASYNC_STEP_PAST: - phase_string = "Async Step Past"; - break; - case TRACE_EVENT_PHASE_ASYNC_END: - phase_string = "Async End"; - break; - case TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN: - phase_string = "Nestable Async Begin"; - break; - case TRACE_EVENT_PHASE_NESTABLE_ASYNC_END: - phase_string = "Nestable Async End"; - break; - case TRACE_EVENT_PHASE_NESTABLE_ASYNC_INSTANT: - phase_string = "Nestable Async Instant"; - break; - case TRACE_EVENT_PHASE_FLOW_BEGIN: - phase_string = "Phase Flow Begin"; - break; - case TRACE_EVENT_PHASE_FLOW_STEP: - phase_string = "Phase Flow Step"; - break; - case TRACE_EVENT_PHASE_FLOW_END: - phase_string = "Phase Flow End"; - break; - case TRACE_EVENT_PHASE_METADATA: - phase_string = "Phase Metadata"; - break; - case TRACE_EVENT_PHASE_COUNTER: - phase_string = "Phase Counter"; - break; - case TRACE_EVENT_PHASE_SAMPLE: - phase_string = "Phase Sample"; - break; - case TRACE_EVENT_PHASE_CREATE_OBJECT: - phase_string = "Phase Create Object"; - break; - case TRACE_EVENT_PHASE_SNAPSHOT_OBJECT: - phase_string = "Phase Snapshot Object"; - break; - case TRACE_EVENT_PHASE_DELETE_OBJECT: - phase_string = "Phase Delete Object"; - break; - default: - phase_buffer[0] = phase; - phase_buffer[1] = 0; - phase_string = phase_buffer; - break; - } - - std::string arg_values_string[3]; - for (int i = 0; i < num_args; i++) { - if (arg_types[i] == TRACE_VALUE_TYPE_CONVERTABLE) { - // Temporarily do nothing here. This function consumes 1/3 to 1/2 of - // *total* process CPU time when ETW tracing, and many of the strings - // created exceed WPA's 4094 byte limit and are shown as: - // "Unable to parse data". See crbug.com/488257 - //convertable_values[i]->AppendAsTraceFormat(arg_values_string + i); - } else { - TraceEvent::TraceValue trace_event; - trace_event.as_uint = arg_values[i]; - TraceEvent::AppendValueAsJSON(arg_types[i], trace_event, - arg_values_string + i); - } - } - - EventWriteChromeEvent( - name, phase_string, num_args > 0 ? arg_names[0] : "", - arg_values_string[0].c_str(), num_args > 1 ? arg_names[1] : "", - arg_values_string[1].c_str(), num_args > 2 ? arg_names[2] : "", - arg_values_string[2].c_str()); -} - -// static -void TraceEventETWExport::AddCustomEvent(const char* name, - char const* phase, - const char* arg_name_1, - const char* arg_value_1, - const char* arg_name_2, - const char* arg_value_2, - const char* arg_name_3, - const char* arg_value_3) { - if (!GetInstance() || !GetInstance()->ETWExportEnabled_ || - !EventEnabledChromeEvent()) - return; - - EventWriteChromeEvent(name, phase, arg_name_1, arg_value_1, arg_name_2, - arg_value_2, arg_name_3, arg_value_3); -} - -void TraceEventETWExport::Resurrect() { - StaticMemorySingletonTraits<TraceEventETWExport>::Resurrect(); -} - -} // namespace trace_event -} // namespace base |