mirror of
https://github.com/danog/libtgvoip.git
synced 2024-12-02 09:37:52 +01:00
5caaaafa42
I'm now using the entire audio processing module from WebRTC as opposed to individual DSP algorithms pulled from there before. Seems to work better this way.
887 lines
42 KiB
C++
887 lines
42 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file under third_party_mods/chromium or at:
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// http://src.chromium.org/svn/trunk/src/LICENSE
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#ifndef RTC_BASE_TRACE_EVENT_H_
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#define RTC_BASE_TRACE_EVENT_H_
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#include <string>
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#include "rtc_base/event_tracer.h"
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#if defined(TRACE_EVENT0)
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#error "Another copy of trace_event.h has already been included."
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#endif
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// Extracted from Chromium's src/base/debug/trace_event.h.
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// This header is designed to give you trace_event macros without specifying
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// how the events actually get collected and stored. If you need to expose trace
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// event to some other universe, you can copy-and-paste this file,
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// implement the TRACE_EVENT_API macros, and do any other necessary fixup for
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// the target platform. The end result is that multiple libraries can funnel
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// events through to a shared trace event collector.
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// Trace events are for tracking application performance and resource usage.
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// Macros are provided to track:
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// Begin and end of function calls
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// Counters
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//
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// Events are issued against categories. Whereas RTC_LOG's
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// categories are statically defined, TRACE categories are created
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// implicitly with a string. For example:
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// TRACE_EVENT_INSTANT0("MY_SUBSYSTEM", "SomeImportantEvent")
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//
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// Events can be INSTANT, or can be pairs of BEGIN and END in the same scope:
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// TRACE_EVENT_BEGIN0("MY_SUBSYSTEM", "SomethingCostly")
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// doSomethingCostly()
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// TRACE_EVENT_END0("MY_SUBSYSTEM", "SomethingCostly")
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// Note: our tools can't always determine the correct BEGIN/END pairs unless
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// these are used in the same scope. Use ASYNC_BEGIN/ASYNC_END macros if you
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// need them to be in separate scopes.
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//
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// A common use case is to trace entire function scopes. This
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// issues a trace BEGIN and END automatically:
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// void doSomethingCostly() {
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// TRACE_EVENT0("MY_SUBSYSTEM", "doSomethingCostly");
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// ...
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// }
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//
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// Additional parameters can be associated with an event:
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// void doSomethingCostly2(int howMuch) {
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// TRACE_EVENT1("MY_SUBSYSTEM", "doSomethingCostly",
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// "howMuch", howMuch);
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// ...
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// }
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//
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// The trace system will automatically add to this information the
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// current process id, thread id, and a timestamp in microseconds.
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//
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// To trace an asynchronous procedure such as an IPC send/receive, use
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// ASYNC_BEGIN and ASYNC_END:
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// [single threaded sender code]
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// static int send_count = 0;
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// ++send_count;
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// TRACE_EVENT_ASYNC_BEGIN0("ipc", "message", send_count);
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// Send(new MyMessage(send_count));
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// [receive code]
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// void OnMyMessage(send_count) {
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// TRACE_EVENT_ASYNC_END0("ipc", "message", send_count);
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// }
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// The third parameter is a unique ID to match ASYNC_BEGIN/ASYNC_END pairs.
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// ASYNC_BEGIN and ASYNC_END can occur on any thread of any traced process.
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// Pointers can be used for the ID parameter, and they will be mangled
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// internally so that the same pointer on two different processes will not
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// match. For example:
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// class MyTracedClass {
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// public:
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// MyTracedClass() {
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// TRACE_EVENT_ASYNC_BEGIN0("category", "MyTracedClass", this);
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// }
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// ~MyTracedClass() {
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// TRACE_EVENT_ASYNC_END0("category", "MyTracedClass", this);
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// }
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// }
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//
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// Trace event also supports counters, which is a way to track a quantity
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// as it varies over time. Counters are created with the following macro:
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// TRACE_COUNTER1("MY_SUBSYSTEM", "myCounter", g_myCounterValue);
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//
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// Counters are process-specific. The macro itself can be issued from any
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// thread, however.
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//
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// Sometimes, you want to track two counters at once. You can do this with two
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// counter macros:
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// TRACE_COUNTER1("MY_SUBSYSTEM", "myCounter0", g_myCounterValue[0]);
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// TRACE_COUNTER1("MY_SUBSYSTEM", "myCounter1", g_myCounterValue[1]);
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// Or you can do it with a combined macro:
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// TRACE_COUNTER2("MY_SUBSYSTEM", "myCounter",
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// "bytesPinned", g_myCounterValue[0],
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// "bytesAllocated", g_myCounterValue[1]);
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// This indicates to the tracing UI that these counters should be displayed
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// in a single graph, as a summed area chart.
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//
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// Since counters are in a global namespace, you may want to disembiguate with a
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// unique ID, by using the TRACE_COUNTER_ID* variations.
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//
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// By default, trace collection is compiled in, but turned off at runtime.
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// Collecting trace data is the responsibility of the embedding
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// application. In Chrome's case, navigating to about:tracing will turn on
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// tracing and display data collected across all active processes.
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//
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//
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// Memory scoping note:
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// Tracing copies the pointers, not the string content, of the strings passed
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// in for category, name, and arg_names. Thus, the following code will
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// cause problems:
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// char* str = strdup("impprtantName");
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// TRACE_EVENT_INSTANT0("SUBSYSTEM", str); // BAD!
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// free(str); // Trace system now has dangling pointer
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//
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// To avoid this issue with the |name| and |arg_name| parameters, use the
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// TRACE_EVENT_COPY_XXX overloads of the macros at additional runtime overhead.
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// Notes: The category must always be in a long-lived char* (i.e. static const).
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// The |arg_values|, when used, are always deep copied with the _COPY
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// macros.
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//
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// When are string argument values copied:
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// const char* arg_values are only referenced by default:
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// TRACE_EVENT1("category", "name",
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// "arg1", "literal string is only referenced");
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// Use TRACE_STR_COPY to force copying of a const char*:
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// TRACE_EVENT1("category", "name",
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// "arg1", TRACE_STR_COPY("string will be copied"));
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// std::string arg_values are always copied:
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// TRACE_EVENT1("category", "name",
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// "arg1", std::string("string will be copied"));
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//
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//
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// Thread Safety:
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// Thread safety is provided by methods defined in event_tracer.h. See the file
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// for details.
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// By default, const char* argument values are assumed to have long-lived scope
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// and will not be copied. Use this macro to force a const char* to be copied.
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#define TRACE_STR_COPY(str) \
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webrtc::trace_event_internal::TraceStringWithCopy(str)
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// This will mark the trace event as disabled by default. The user will need
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// to explicitly enable the event.
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#define TRACE_DISABLED_BY_DEFAULT(name) "disabled-by-default-" name
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// By default, uint64 ID argument values are not mangled with the Process ID in
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// TRACE_EVENT_ASYNC macros. Use this macro to force Process ID mangling.
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#define TRACE_ID_MANGLE(id) \
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webrtc::trace_event_internal::TraceID::ForceMangle(id)
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// Records a pair of begin and end events called "name" for the current
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// scope, with 0, 1 or 2 associated arguments. If the category is not
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// enabled, then this does nothing.
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// - category and name strings must have application lifetime (statics or
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// literals). They may not include " chars.
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#define TRACE_EVENT0(category, name) \
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INTERNAL_TRACE_EVENT_ADD_SCOPED(category, name)
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#define TRACE_EVENT1(category, name, arg1_name, arg1_val) \
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INTERNAL_TRACE_EVENT_ADD_SCOPED(category, name, arg1_name, arg1_val)
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#define TRACE_EVENT2(category, name, arg1_name, arg1_val, arg2_name, arg2_val) \
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INTERNAL_TRACE_EVENT_ADD_SCOPED(category, name, arg1_name, arg1_val, \
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arg2_name, arg2_val)
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// Records a single event called "name" immediately, with 0, 1 or 2
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// associated arguments. If the category is not enabled, then this
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// does nothing.
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// - category and name strings must have application lifetime (statics or
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// literals). They may not include " chars.
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#define TRACE_EVENT_INSTANT0(category, name) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, \
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category, name, TRACE_EVENT_FLAG_NONE)
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#define TRACE_EVENT_INSTANT1(category, name, arg1_name, arg1_val) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, \
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category, name, TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
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#define TRACE_EVENT_INSTANT2(category, name, arg1_name, arg1_val, \
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arg2_name, arg2_val) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, \
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category, name, TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, \
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arg2_name, arg2_val)
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#define TRACE_EVENT_COPY_INSTANT0(category, name) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, \
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category, name, TRACE_EVENT_FLAG_COPY)
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#define TRACE_EVENT_COPY_INSTANT1(category, name, arg1_name, arg1_val) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, \
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category, name, TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val)
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#define TRACE_EVENT_COPY_INSTANT2(category, name, arg1_name, arg1_val, \
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arg2_name, arg2_val) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, \
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category, name, TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, \
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arg2_name, arg2_val)
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// Records a single BEGIN event called "name" immediately, with 0, 1 or 2
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// associated arguments. If the category is not enabled, then this
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// does nothing.
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// - category and name strings must have application lifetime (statics or
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// literals). They may not include " chars.
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#define TRACE_EVENT_BEGIN0(category, name) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, \
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category, name, TRACE_EVENT_FLAG_NONE)
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#define TRACE_EVENT_BEGIN1(category, name, arg1_name, arg1_val) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, \
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category, name, TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
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#define TRACE_EVENT_BEGIN2(category, name, arg1_name, arg1_val, \
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arg2_name, arg2_val) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, \
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category, name, TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, \
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arg2_name, arg2_val)
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#define TRACE_EVENT_COPY_BEGIN0(category, name) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, \
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category, name, TRACE_EVENT_FLAG_COPY)
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#define TRACE_EVENT_COPY_BEGIN1(category, name, arg1_name, arg1_val) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, \
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category, name, TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val)
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#define TRACE_EVENT_COPY_BEGIN2(category, name, arg1_name, arg1_val, \
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arg2_name, arg2_val) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, \
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category, name, TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, \
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arg2_name, arg2_val)
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// Records a single END event for "name" immediately. If the category
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// is not enabled, then this does nothing.
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// - category and name strings must have application lifetime (statics or
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// literals). They may not include " chars.
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#define TRACE_EVENT_END0(category, name) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, \
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category, name, TRACE_EVENT_FLAG_NONE)
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#define TRACE_EVENT_END1(category, name, arg1_name, arg1_val) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, \
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category, name, TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
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#define TRACE_EVENT_END2(category, name, arg1_name, arg1_val, \
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arg2_name, arg2_val) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, \
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category, name, TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, \
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arg2_name, arg2_val)
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#define TRACE_EVENT_COPY_END0(category, name) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, \
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category, name, TRACE_EVENT_FLAG_COPY)
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#define TRACE_EVENT_COPY_END1(category, name, arg1_name, arg1_val) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, \
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category, name, TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val)
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#define TRACE_EVENT_COPY_END2(category, name, arg1_name, arg1_val, \
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arg2_name, arg2_val) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, \
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category, name, TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, \
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arg2_name, arg2_val)
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// Records the value of a counter called "name" immediately. Value
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// must be representable as a 32 bit integer.
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// - category and name strings must have application lifetime (statics or
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// literals). They may not include " chars.
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#define TRACE_COUNTER1(category, name, value) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_COUNTER, \
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category, name, TRACE_EVENT_FLAG_NONE, \
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"value", static_cast<int>(value))
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#define TRACE_COPY_COUNTER1(category, name, value) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_COUNTER, \
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category, name, TRACE_EVENT_FLAG_COPY, \
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"value", static_cast<int>(value))
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// Records the values of a multi-parted counter called "name" immediately.
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// The UI will treat value1 and value2 as parts of a whole, displaying their
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// values as a stacked-bar chart.
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// - category and name strings must have application lifetime (statics or
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// literals). They may not include " chars.
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#define TRACE_COUNTER2(category, name, value1_name, value1_val, \
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value2_name, value2_val) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_COUNTER, \
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category, name, TRACE_EVENT_FLAG_NONE, \
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value1_name, static_cast<int>(value1_val), \
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value2_name, static_cast<int>(value2_val))
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#define TRACE_COPY_COUNTER2(category, name, value1_name, value1_val, \
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value2_name, value2_val) \
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INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_COUNTER, \
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category, name, TRACE_EVENT_FLAG_COPY, \
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value1_name, static_cast<int>(value1_val), \
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value2_name, static_cast<int>(value2_val))
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// Records the value of a counter called "name" immediately. Value
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// must be representable as a 32 bit integer.
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// - category and name strings must have application lifetime (statics or
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// literals). They may not include " chars.
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// - |id| is used to disambiguate counters with the same name. It must either
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// be a pointer or an integer value up to 64 bits. If it's a pointer, the bits
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// will be xored with a hash of the process ID so that the same pointer on
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// two different processes will not collide.
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#define TRACE_COUNTER_ID1(category, name, id, value) \
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INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_COUNTER, \
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category, name, id, TRACE_EVENT_FLAG_NONE, \
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"value", static_cast<int>(value))
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#define TRACE_COPY_COUNTER_ID1(category, name, id, value) \
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INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_COUNTER, \
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category, name, id, TRACE_EVENT_FLAG_COPY, \
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"value", static_cast<int>(value))
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// Records the values of a multi-parted counter called "name" immediately.
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// The UI will treat value1 and value2 as parts of a whole, displaying their
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// values as a stacked-bar chart.
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// - category and name strings must have application lifetime (statics or
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// literals). They may not include " chars.
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// - |id| is used to disambiguate counters with the same name. It must either
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// be a pointer or an integer value up to 64 bits. If it's a pointer, the bits
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// will be xored with a hash of the process ID so that the same pointer on
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// two different processes will not collide.
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#define TRACE_COUNTER_ID2(category, name, id, value1_name, value1_val, \
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value2_name, value2_val) \
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INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_COUNTER, \
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category, name, id, TRACE_EVENT_FLAG_NONE, \
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value1_name, static_cast<int>(value1_val), \
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value2_name, static_cast<int>(value2_val))
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#define TRACE_COPY_COUNTER_ID2(category, name, id, value1_name, value1_val, \
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value2_name, value2_val) \
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INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_COUNTER, \
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category, name, id, TRACE_EVENT_FLAG_COPY, \
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value1_name, static_cast<int>(value1_val), \
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value2_name, static_cast<int>(value2_val))
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// Records a single ASYNC_BEGIN event called "name" immediately, with 0, 1 or 2
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// associated arguments. If the category is not enabled, then this
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// does nothing.
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// - category and name strings must have application lifetime (statics or
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// literals). They may not include " chars.
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// - |id| is used to match the ASYNC_BEGIN event with the ASYNC_END event. ASYNC
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// events are considered to match if their category, name and id values all
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// match. |id| must either be a pointer or an integer value up to 64 bits. If
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// it's a pointer, the bits will be xored with a hash of the process ID so
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// that the same pointer on two different processes will not collide.
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// An asynchronous operation can consist of multiple phases. The first phase is
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// defined by the ASYNC_BEGIN calls. Additional phases can be defined using the
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// ASYNC_STEP macros. When the operation completes, call ASYNC_END.
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// An ASYNC trace typically occur on a single thread (if not, they will only be
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// drawn on the thread defined in the ASYNC_BEGIN event), but all events in that
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// operation must use the same |name| and |id|. Each event can have its own
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// args.
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#define TRACE_EVENT_ASYNC_BEGIN0(category, name, id) \
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INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_BEGIN, \
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category, name, id, TRACE_EVENT_FLAG_NONE)
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#define TRACE_EVENT_ASYNC_BEGIN1(category, name, id, arg1_name, arg1_val) \
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INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_BEGIN, \
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category, name, id, TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
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#define TRACE_EVENT_ASYNC_BEGIN2(category, name, id, arg1_name, arg1_val, \
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arg2_name, arg2_val) \
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INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_BEGIN, \
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category, name, id, TRACE_EVENT_FLAG_NONE, \
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arg1_name, arg1_val, arg2_name, arg2_val)
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#define TRACE_EVENT_COPY_ASYNC_BEGIN0(category, name, id) \
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INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_BEGIN, \
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category, name, id, TRACE_EVENT_FLAG_COPY)
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#define TRACE_EVENT_COPY_ASYNC_BEGIN1(category, name, id, arg1_name, arg1_val) \
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INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_BEGIN, \
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category, name, id, TRACE_EVENT_FLAG_COPY, \
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arg1_name, arg1_val)
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#define TRACE_EVENT_COPY_ASYNC_BEGIN2(category, name, id, arg1_name, arg1_val, \
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arg2_name, arg2_val) \
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INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_BEGIN, \
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category, name, id, TRACE_EVENT_FLAG_COPY, \
|
|
arg1_name, arg1_val, arg2_name, arg2_val)
|
|
|
|
// Records a single ASYNC_STEP event for |step| immediately. If the category
|
|
// is not enabled, then this does nothing. The |name| and |id| must match the
|
|
// ASYNC_BEGIN event above. The |step| param identifies this step within the
|
|
// async event. This should be called at the beginning of the next phase of an
|
|
// asynchronous operation.
|
|
#define TRACE_EVENT_ASYNC_STEP0(category, name, id, step) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_STEP, \
|
|
category, name, id, TRACE_EVENT_FLAG_NONE, "step", step)
|
|
#define TRACE_EVENT_ASYNC_STEP1(category, name, id, step, \
|
|
arg1_name, arg1_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_STEP, \
|
|
category, name, id, TRACE_EVENT_FLAG_NONE, "step", step, \
|
|
arg1_name, arg1_val)
|
|
#define TRACE_EVENT_COPY_ASYNC_STEP0(category, name, id, step) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_STEP, \
|
|
category, name, id, TRACE_EVENT_FLAG_COPY, "step", step)
|
|
#define TRACE_EVENT_COPY_ASYNC_STEP1(category, name, id, step, \
|
|
arg1_name, arg1_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_STEP, \
|
|
category, name, id, TRACE_EVENT_FLAG_COPY, "step", step, \
|
|
arg1_name, arg1_val)
|
|
|
|
// Records a single ASYNC_END event for "name" immediately. If the category
|
|
// is not enabled, then this does nothing.
|
|
#define TRACE_EVENT_ASYNC_END0(category, name, id) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_END, \
|
|
category, name, id, TRACE_EVENT_FLAG_NONE)
|
|
#define TRACE_EVENT_ASYNC_END1(category, name, id, arg1_name, arg1_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_END, \
|
|
category, name, id, TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
|
|
#define TRACE_EVENT_ASYNC_END2(category, name, id, arg1_name, arg1_val, \
|
|
arg2_name, arg2_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_END, \
|
|
category, name, id, TRACE_EVENT_FLAG_NONE, \
|
|
arg1_name, arg1_val, arg2_name, arg2_val)
|
|
#define TRACE_EVENT_COPY_ASYNC_END0(category, name, id) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_END, \
|
|
category, name, id, TRACE_EVENT_FLAG_COPY)
|
|
#define TRACE_EVENT_COPY_ASYNC_END1(category, name, id, arg1_name, arg1_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_END, \
|
|
category, name, id, TRACE_EVENT_FLAG_COPY, \
|
|
arg1_name, arg1_val)
|
|
#define TRACE_EVENT_COPY_ASYNC_END2(category, name, id, arg1_name, arg1_val, \
|
|
arg2_name, arg2_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_END, \
|
|
category, name, id, TRACE_EVENT_FLAG_COPY, \
|
|
arg1_name, arg1_val, arg2_name, arg2_val)
|
|
|
|
|
|
// Records a single FLOW_BEGIN event called "name" immediately, with 0, 1 or 2
|
|
// associated arguments. If the category is not enabled, then this
|
|
// does nothing.
|
|
// - category and name strings must have application lifetime (statics or
|
|
// literals). They may not include " chars.
|
|
// - |id| is used to match the FLOW_BEGIN event with the FLOW_END event. FLOW
|
|
// events are considered to match if their category, name and id values all
|
|
// match. |id| must either be a pointer or an integer value up to 64 bits. If
|
|
// it's a pointer, the bits will be xored with a hash of the process ID so
|
|
// that the same pointer on two different processes will not collide.
|
|
// FLOW events are different from ASYNC events in how they are drawn by the
|
|
// tracing UI. A FLOW defines asynchronous data flow, such as posting a task
|
|
// (FLOW_BEGIN) and later executing that task (FLOW_END). Expect FLOWs to be
|
|
// drawn as lines or arrows from FLOW_BEGIN scopes to FLOW_END scopes. Similar
|
|
// to ASYNC, a FLOW can consist of multiple phases. The first phase is defined
|
|
// by the FLOW_BEGIN calls. Additional phases can be defined using the FLOW_STEP
|
|
// macros. When the operation completes, call FLOW_END. An async operation can
|
|
// span threads and processes, but all events in that operation must use the
|
|
// same |name| and |id|. Each event can have its own args.
|
|
#define TRACE_EVENT_FLOW_BEGIN0(category, name, id) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_BEGIN, \
|
|
category, name, id, TRACE_EVENT_FLAG_NONE)
|
|
#define TRACE_EVENT_FLOW_BEGIN1(category, name, id, arg1_name, arg1_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_BEGIN, \
|
|
category, name, id, TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
|
|
#define TRACE_EVENT_FLOW_BEGIN2(category, name, id, arg1_name, arg1_val, \
|
|
arg2_name, arg2_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_BEGIN, \
|
|
category, name, id, TRACE_EVENT_FLAG_NONE, \
|
|
arg1_name, arg1_val, arg2_name, arg2_val)
|
|
#define TRACE_EVENT_COPY_FLOW_BEGIN0(category, name, id) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_BEGIN, \
|
|
category, name, id, TRACE_EVENT_FLAG_COPY)
|
|
#define TRACE_EVENT_COPY_FLOW_BEGIN1(category, name, id, arg1_name, arg1_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_BEGIN, \
|
|
category, name, id, TRACE_EVENT_FLAG_COPY, \
|
|
arg1_name, arg1_val)
|
|
#define TRACE_EVENT_COPY_FLOW_BEGIN2(category, name, id, arg1_name, arg1_val, \
|
|
arg2_name, arg2_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_BEGIN, \
|
|
category, name, id, TRACE_EVENT_FLAG_COPY, \
|
|
arg1_name, arg1_val, arg2_name, arg2_val)
|
|
|
|
// Records a single FLOW_STEP event for |step| immediately. If the category
|
|
// is not enabled, then this does nothing. The |name| and |id| must match the
|
|
// FLOW_BEGIN event above. The |step| param identifies this step within the
|
|
// async event. This should be called at the beginning of the next phase of an
|
|
// asynchronous operation.
|
|
#define TRACE_EVENT_FLOW_STEP0(category, name, id, step) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_STEP, \
|
|
category, name, id, TRACE_EVENT_FLAG_NONE, "step", step)
|
|
#define TRACE_EVENT_FLOW_STEP1(category, name, id, step, \
|
|
arg1_name, arg1_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_STEP, \
|
|
category, name, id, TRACE_EVENT_FLAG_NONE, "step", step, \
|
|
arg1_name, arg1_val)
|
|
#define TRACE_EVENT_COPY_FLOW_STEP0(category, name, id, step) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_STEP, \
|
|
category, name, id, TRACE_EVENT_FLAG_COPY, "step", step)
|
|
#define TRACE_EVENT_COPY_FLOW_STEP1(category, name, id, step, \
|
|
arg1_name, arg1_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_STEP, \
|
|
category, name, id, TRACE_EVENT_FLAG_COPY, "step", step, \
|
|
arg1_name, arg1_val)
|
|
|
|
// Records a single FLOW_END event for "name" immediately. If the category
|
|
// is not enabled, then this does nothing.
|
|
#define TRACE_EVENT_FLOW_END0(category, name, id) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_END, \
|
|
category, name, id, TRACE_EVENT_FLAG_NONE)
|
|
#define TRACE_EVENT_FLOW_END1(category, name, id, arg1_name, arg1_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_END, \
|
|
category, name, id, TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
|
|
#define TRACE_EVENT_FLOW_END2(category, name, id, arg1_name, arg1_val, \
|
|
arg2_name, arg2_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_END, \
|
|
category, name, id, TRACE_EVENT_FLAG_NONE, \
|
|
arg1_name, arg1_val, arg2_name, arg2_val)
|
|
#define TRACE_EVENT_COPY_FLOW_END0(category, name, id) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_END, \
|
|
category, name, id, TRACE_EVENT_FLAG_COPY)
|
|
#define TRACE_EVENT_COPY_FLOW_END1(category, name, id, arg1_name, arg1_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_END, \
|
|
category, name, id, TRACE_EVENT_FLAG_COPY, \
|
|
arg1_name, arg1_val)
|
|
#define TRACE_EVENT_COPY_FLOW_END2(category, name, id, arg1_name, arg1_val, \
|
|
arg2_name, arg2_val) \
|
|
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_FLOW_END, \
|
|
category, name, id, TRACE_EVENT_FLAG_COPY, \
|
|
arg1_name, arg1_val, arg2_name, arg2_val)
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Implementation specific tracing API definitions.
|
|
|
|
// Get a pointer to the enabled state of the given trace category. Only
|
|
// long-lived literal strings should be given as the category name. The returned
|
|
// pointer can be held permanently in a local static for example. If the
|
|
// unsigned char is non-zero, tracing is enabled. If tracing is enabled,
|
|
// TRACE_EVENT_API_ADD_TRACE_EVENT can be called. It's OK if tracing is disabled
|
|
// between the load of the tracing state and the call to
|
|
// TRACE_EVENT_API_ADD_TRACE_EVENT, because this flag only provides an early out
|
|
// for best performance when tracing is disabled.
|
|
// const unsigned char*
|
|
// TRACE_EVENT_API_GET_CATEGORY_ENABLED(const char* category_name)
|
|
#define TRACE_EVENT_API_GET_CATEGORY_ENABLED \
|
|
webrtc::EventTracer::GetCategoryEnabled
|
|
|
|
// Add a trace event to the platform tracing system.
|
|
// void TRACE_EVENT_API_ADD_TRACE_EVENT(
|
|
// char phase,
|
|
// const unsigned char* category_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,
|
|
// unsigned char flags)
|
|
#define TRACE_EVENT_API_ADD_TRACE_EVENT webrtc::EventTracer::AddTraceEvent
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
// Implementation detail: trace event macros create temporary variables
|
|
// to keep instrumentation overhead low. These macros give each temporary
|
|
// variable a unique name based on the line number to prevent name collissions.
|
|
#define INTERNAL_TRACE_EVENT_UID3(a,b) \
|
|
trace_event_unique_##a##b
|
|
#define INTERNAL_TRACE_EVENT_UID2(a,b) \
|
|
INTERNAL_TRACE_EVENT_UID3(a,b)
|
|
#define INTERNAL_TRACE_EVENT_UID(name_prefix) \
|
|
INTERNAL_TRACE_EVENT_UID2(name_prefix, __LINE__)
|
|
|
|
#if WEBRTC_NON_STATIC_TRACE_EVENT_HANDLERS
|
|
#define INTERNAL_TRACE_EVENT_INFO_TYPE const unsigned char*
|
|
#else
|
|
#define INTERNAL_TRACE_EVENT_INFO_TYPE static const unsigned char*
|
|
#endif // WEBRTC_NON_STATIC_TRACE_EVENT_HANDLERS
|
|
|
|
// Implementation detail: internal macro to create static category.
|
|
#define INTERNAL_TRACE_EVENT_GET_CATEGORY_INFO(category) \
|
|
INTERNAL_TRACE_EVENT_INFO_TYPE INTERNAL_TRACE_EVENT_UID(catstatic) = \
|
|
TRACE_EVENT_API_GET_CATEGORY_ENABLED(category);
|
|
|
|
// Implementation detail: internal macro to create static category and add
|
|
// event if the category is enabled.
|
|
#define INTERNAL_TRACE_EVENT_ADD(phase, category, name, flags, ...) \
|
|
do { \
|
|
INTERNAL_TRACE_EVENT_GET_CATEGORY_INFO(category); \
|
|
if (*INTERNAL_TRACE_EVENT_UID(catstatic)) { \
|
|
webrtc::trace_event_internal::AddTraceEvent( \
|
|
phase, INTERNAL_TRACE_EVENT_UID(catstatic), name, \
|
|
webrtc::trace_event_internal::kNoEventId, flags, ##__VA_ARGS__); \
|
|
} \
|
|
} while (0)
|
|
|
|
// Implementation detail: internal macro to create static category and add begin
|
|
// event if the category is enabled. Also adds the end event when the scope
|
|
// ends.
|
|
#define INTERNAL_TRACE_EVENT_ADD_SCOPED(category, name, ...) \
|
|
INTERNAL_TRACE_EVENT_GET_CATEGORY_INFO(category); \
|
|
webrtc::trace_event_internal::TraceEndOnScopeClose \
|
|
INTERNAL_TRACE_EVENT_UID(profileScope); \
|
|
if (*INTERNAL_TRACE_EVENT_UID(catstatic)) { \
|
|
webrtc::trace_event_internal::AddTraceEvent( \
|
|
TRACE_EVENT_PHASE_BEGIN, \
|
|
INTERNAL_TRACE_EVENT_UID(catstatic), \
|
|
name, webrtc::trace_event_internal::kNoEventId, \
|
|
TRACE_EVENT_FLAG_NONE, ##__VA_ARGS__); \
|
|
INTERNAL_TRACE_EVENT_UID(profileScope).Initialize( \
|
|
INTERNAL_TRACE_EVENT_UID(catstatic), name); \
|
|
}
|
|
|
|
// Implementation detail: internal macro to create static category and add
|
|
// event if the category is enabled.
|
|
#define INTERNAL_TRACE_EVENT_ADD_WITH_ID(phase, category, name, id, flags, \
|
|
...) \
|
|
do { \
|
|
INTERNAL_TRACE_EVENT_GET_CATEGORY_INFO(category); \
|
|
if (*INTERNAL_TRACE_EVENT_UID(catstatic)) { \
|
|
unsigned char trace_event_flags = flags | TRACE_EVENT_FLAG_HAS_ID; \
|
|
webrtc::trace_event_internal::TraceID trace_event_trace_id( \
|
|
id, &trace_event_flags); \
|
|
webrtc::trace_event_internal::AddTraceEvent( \
|
|
phase, INTERNAL_TRACE_EVENT_UID(catstatic), \
|
|
name, trace_event_trace_id.data(), trace_event_flags, \
|
|
##__VA_ARGS__); \
|
|
} \
|
|
} while (0)
|
|
|
|
// Notes regarding the following definitions:
|
|
// New values can be added and propagated to third party libraries, but existing
|
|
// definitions must never be changed, because third party libraries may use old
|
|
// definitions.
|
|
|
|
// Phase indicates the nature of an event entry. E.g. part of a begin/end pair.
|
|
#define TRACE_EVENT_PHASE_BEGIN ('B')
|
|
#define TRACE_EVENT_PHASE_END ('E')
|
|
#define TRACE_EVENT_PHASE_INSTANT ('I')
|
|
#define TRACE_EVENT_PHASE_ASYNC_BEGIN ('S')
|
|
#define TRACE_EVENT_PHASE_ASYNC_STEP ('T')
|
|
#define TRACE_EVENT_PHASE_ASYNC_END ('F')
|
|
#define TRACE_EVENT_PHASE_FLOW_BEGIN ('s')
|
|
#define TRACE_EVENT_PHASE_FLOW_STEP ('t')
|
|
#define TRACE_EVENT_PHASE_FLOW_END ('f')
|
|
#define TRACE_EVENT_PHASE_METADATA ('M')
|
|
#define TRACE_EVENT_PHASE_COUNTER ('C')
|
|
|
|
// Flags for changing the behavior of TRACE_EVENT_API_ADD_TRACE_EVENT.
|
|
#define TRACE_EVENT_FLAG_NONE (static_cast<unsigned char>(0))
|
|
#define TRACE_EVENT_FLAG_COPY (static_cast<unsigned char>(1 << 0))
|
|
#define TRACE_EVENT_FLAG_HAS_ID (static_cast<unsigned char>(1 << 1))
|
|
#define TRACE_EVENT_FLAG_MANGLE_ID (static_cast<unsigned char>(1 << 2))
|
|
|
|
// Type values for identifying types in the TraceValue union.
|
|
#define TRACE_VALUE_TYPE_BOOL (static_cast<unsigned char>(1))
|
|
#define TRACE_VALUE_TYPE_UINT (static_cast<unsigned char>(2))
|
|
#define TRACE_VALUE_TYPE_INT (static_cast<unsigned char>(3))
|
|
#define TRACE_VALUE_TYPE_DOUBLE (static_cast<unsigned char>(4))
|
|
#define TRACE_VALUE_TYPE_POINTER (static_cast<unsigned char>(5))
|
|
#define TRACE_VALUE_TYPE_STRING (static_cast<unsigned char>(6))
|
|
#define TRACE_VALUE_TYPE_COPY_STRING (static_cast<unsigned char>(7))
|
|
|
|
namespace webrtc {
|
|
namespace trace_event_internal {
|
|
|
|
// Specify these values when the corresponding argument of AddTraceEvent is not
|
|
// used.
|
|
const int kZeroNumArgs = 0;
|
|
const unsigned long long kNoEventId = 0;
|
|
|
|
// TraceID encapsulates an ID that can either be an integer or pointer. Pointers
|
|
// are mangled with the Process ID so that they are unlikely to collide when the
|
|
// same pointer is used on different processes.
|
|
class TraceID {
|
|
public:
|
|
class ForceMangle {
|
|
public:
|
|
explicit ForceMangle(unsigned long long id) : data_(id) {}
|
|
explicit ForceMangle(unsigned long id) : data_(id) {}
|
|
explicit ForceMangle(unsigned int id) : data_(id) {}
|
|
explicit ForceMangle(unsigned short id) : data_(id) {}
|
|
explicit ForceMangle(unsigned char id) : data_(id) {}
|
|
explicit ForceMangle(long long id)
|
|
: data_(static_cast<unsigned long long>(id)) {}
|
|
explicit ForceMangle(long id)
|
|
: data_(static_cast<unsigned long long>(id)) {}
|
|
explicit ForceMangle(int id)
|
|
: data_(static_cast<unsigned long long>(id)) {}
|
|
explicit ForceMangle(short id)
|
|
: data_(static_cast<unsigned long long>(id)) {}
|
|
explicit ForceMangle(signed char id)
|
|
: data_(static_cast<unsigned long long>(id)) {}
|
|
|
|
unsigned long long data() const { return data_; }
|
|
|
|
private:
|
|
unsigned long long data_;
|
|
};
|
|
|
|
explicit TraceID(const void* id, unsigned char* flags)
|
|
: data_(static_cast<unsigned long long>(
|
|
reinterpret_cast<uintptr_t>(id))) {
|
|
*flags |= TRACE_EVENT_FLAG_MANGLE_ID;
|
|
}
|
|
explicit TraceID(ForceMangle id, unsigned char* flags) : data_(id.data()) {
|
|
*flags |= TRACE_EVENT_FLAG_MANGLE_ID;
|
|
}
|
|
explicit TraceID(unsigned long long id, unsigned char* flags)
|
|
: data_(id) { (void)flags; }
|
|
explicit TraceID(unsigned long id, unsigned char* flags)
|
|
: data_(id) { (void)flags; }
|
|
explicit TraceID(unsigned int id, unsigned char* flags)
|
|
: data_(id) { (void)flags; }
|
|
explicit TraceID(unsigned short id, unsigned char* flags)
|
|
: data_(id) { (void)flags; }
|
|
explicit TraceID(unsigned char id, unsigned char* flags)
|
|
: data_(id) { (void)flags; }
|
|
explicit TraceID(long long id, unsigned char* flags)
|
|
: data_(static_cast<unsigned long long>(id)) { (void)flags; }
|
|
explicit TraceID(long id, unsigned char* flags)
|
|
: data_(static_cast<unsigned long long>(id)) { (void)flags; }
|
|
explicit TraceID(int id, unsigned char* flags)
|
|
: data_(static_cast<unsigned long long>(id)) { (void)flags; }
|
|
explicit TraceID(short id, unsigned char* flags)
|
|
: data_(static_cast<unsigned long long>(id)) { (void)flags; }
|
|
explicit TraceID(signed char id, unsigned char* flags)
|
|
: data_(static_cast<unsigned long long>(id)) { (void)flags; }
|
|
|
|
unsigned long long data() const { return data_; }
|
|
|
|
private:
|
|
unsigned long long data_;
|
|
};
|
|
|
|
// Simple union to store various types as unsigned long long.
|
|
union TraceValueUnion {
|
|
bool as_bool;
|
|
unsigned long long as_uint;
|
|
long long as_int;
|
|
double as_double;
|
|
const void* as_pointer;
|
|
const char* as_string;
|
|
};
|
|
|
|
// Simple container for const char* that should be copied instead of retained.
|
|
class TraceStringWithCopy {
|
|
public:
|
|
explicit TraceStringWithCopy(const char* str) : str_(str) {}
|
|
operator const char* () const { return str_; }
|
|
private:
|
|
const char* str_;
|
|
};
|
|
|
|
// Define SetTraceValue for each allowed type. It stores the type and
|
|
// value in the return arguments. This allows this API to avoid declaring any
|
|
// structures so that it is portable to third_party libraries.
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|
#define INTERNAL_DECLARE_SET_TRACE_VALUE(actual_type, \
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union_member, \
|
|
value_type_id) \
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|
static inline void SetTraceValue(actual_type arg, \
|
|
unsigned char* type, \
|
|
unsigned long long* value) { \
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|
TraceValueUnion type_value; \
|
|
type_value.union_member = arg; \
|
|
*type = value_type_id; \
|
|
*value = type_value.as_uint; \
|
|
}
|
|
// Simpler form for int types that can be safely casted.
|
|
#define INTERNAL_DECLARE_SET_TRACE_VALUE_INT(actual_type, \
|
|
value_type_id) \
|
|
static inline void SetTraceValue(actual_type arg, \
|
|
unsigned char* type, \
|
|
unsigned long long* value) { \
|
|
*type = value_type_id; \
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|
*value = static_cast<unsigned long long>(arg); \
|
|
}
|
|
|
|
INTERNAL_DECLARE_SET_TRACE_VALUE_INT(unsigned long long, TRACE_VALUE_TYPE_UINT)
|
|
INTERNAL_DECLARE_SET_TRACE_VALUE_INT(unsigned long, TRACE_VALUE_TYPE_UINT)
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|
INTERNAL_DECLARE_SET_TRACE_VALUE_INT(unsigned int, TRACE_VALUE_TYPE_UINT)
|
|
INTERNAL_DECLARE_SET_TRACE_VALUE_INT(unsigned short, TRACE_VALUE_TYPE_UINT)
|
|
INTERNAL_DECLARE_SET_TRACE_VALUE_INT(unsigned char, TRACE_VALUE_TYPE_UINT)
|
|
INTERNAL_DECLARE_SET_TRACE_VALUE_INT(long long, TRACE_VALUE_TYPE_INT)
|
|
INTERNAL_DECLARE_SET_TRACE_VALUE_INT(long, TRACE_VALUE_TYPE_INT)
|
|
INTERNAL_DECLARE_SET_TRACE_VALUE_INT(int, TRACE_VALUE_TYPE_INT)
|
|
INTERNAL_DECLARE_SET_TRACE_VALUE_INT(short, TRACE_VALUE_TYPE_INT)
|
|
INTERNAL_DECLARE_SET_TRACE_VALUE_INT(signed char, TRACE_VALUE_TYPE_INT)
|
|
INTERNAL_DECLARE_SET_TRACE_VALUE(bool, as_bool, TRACE_VALUE_TYPE_BOOL)
|
|
INTERNAL_DECLARE_SET_TRACE_VALUE(double, as_double, TRACE_VALUE_TYPE_DOUBLE)
|
|
INTERNAL_DECLARE_SET_TRACE_VALUE(const void*, as_pointer,
|
|
TRACE_VALUE_TYPE_POINTER)
|
|
INTERNAL_DECLARE_SET_TRACE_VALUE(const char*, as_string,
|
|
TRACE_VALUE_TYPE_STRING)
|
|
INTERNAL_DECLARE_SET_TRACE_VALUE(const TraceStringWithCopy&, as_string,
|
|
TRACE_VALUE_TYPE_COPY_STRING)
|
|
|
|
#undef INTERNAL_DECLARE_SET_TRACE_VALUE
|
|
#undef INTERNAL_DECLARE_SET_TRACE_VALUE_INT
|
|
|
|
// std::string version of SetTraceValue so that trace arguments can be strings.
|
|
static inline void SetTraceValue(const std::string& arg,
|
|
unsigned char* type,
|
|
unsigned long long* value) {
|
|
TraceValueUnion type_value;
|
|
type_value.as_string = arg.c_str();
|
|
*type = TRACE_VALUE_TYPE_COPY_STRING;
|
|
*value = type_value.as_uint;
|
|
}
|
|
|
|
// These AddTraceEvent template functions are defined here instead of in the
|
|
// macro, because the arg_values could be temporary objects, such as
|
|
// std::string. In order to store pointers to the internal c_str and pass
|
|
// through to the tracing API, the arg_values must live throughout
|
|
// these procedures.
|
|
|
|
static inline void AddTraceEvent(char phase,
|
|
const unsigned char* category_enabled,
|
|
const char* name,
|
|
unsigned long long id,
|
|
unsigned char flags) {
|
|
TRACE_EVENT_API_ADD_TRACE_EVENT(phase, category_enabled, name, id,
|
|
kZeroNumArgs, nullptr, nullptr, nullptr,
|
|
flags);
|
|
}
|
|
|
|
template<class ARG1_TYPE>
|
|
static inline void AddTraceEvent(char phase,
|
|
const unsigned char* category_enabled,
|
|
const char* name,
|
|
unsigned long long id,
|
|
unsigned char flags,
|
|
const char* arg1_name,
|
|
const ARG1_TYPE& arg1_val) {
|
|
const int num_args = 1;
|
|
unsigned char arg_types[1];
|
|
unsigned long long arg_values[1];
|
|
SetTraceValue(arg1_val, &arg_types[0], &arg_values[0]);
|
|
TRACE_EVENT_API_ADD_TRACE_EVENT(
|
|
phase, category_enabled, name, id,
|
|
num_args, &arg1_name, arg_types, arg_values,
|
|
flags);
|
|
}
|
|
|
|
template<class ARG1_TYPE, class ARG2_TYPE>
|
|
static inline void AddTraceEvent(char phase,
|
|
const unsigned char* category_enabled,
|
|
const char* name,
|
|
unsigned long long id,
|
|
unsigned char flags,
|
|
const char* arg1_name,
|
|
const ARG1_TYPE& arg1_val,
|
|
const char* arg2_name,
|
|
const ARG2_TYPE& arg2_val) {
|
|
const int num_args = 2;
|
|
const char* arg_names[2] = { arg1_name, arg2_name };
|
|
unsigned char arg_types[2];
|
|
unsigned long long arg_values[2];
|
|
SetTraceValue(arg1_val, &arg_types[0], &arg_values[0]);
|
|
SetTraceValue(arg2_val, &arg_types[1], &arg_values[1]);
|
|
TRACE_EVENT_API_ADD_TRACE_EVENT(
|
|
phase, category_enabled, name, id,
|
|
num_args, arg_names, arg_types, arg_values,
|
|
flags);
|
|
}
|
|
|
|
// Used by TRACE_EVENTx macro. Do not use directly.
|
|
class TraceEndOnScopeClose {
|
|
public:
|
|
// Note: members of data_ intentionally left uninitialized. See Initialize.
|
|
TraceEndOnScopeClose() : p_data_(nullptr) {}
|
|
~TraceEndOnScopeClose() {
|
|
if (p_data_)
|
|
AddEventIfEnabled();
|
|
}
|
|
|
|
void Initialize(const unsigned char* category_enabled,
|
|
const char* name) {
|
|
data_.category_enabled = category_enabled;
|
|
data_.name = name;
|
|
p_data_ = &data_;
|
|
}
|
|
|
|
private:
|
|
// Add the end event if the category is still enabled.
|
|
void AddEventIfEnabled() {
|
|
// Only called when p_data_ is non-null.
|
|
if (*p_data_->category_enabled) {
|
|
TRACE_EVENT_API_ADD_TRACE_EVENT(TRACE_EVENT_PHASE_END,
|
|
p_data_->category_enabled, p_data_->name,
|
|
kNoEventId, kZeroNumArgs, nullptr,
|
|
nullptr, nullptr, TRACE_EVENT_FLAG_NONE);
|
|
}
|
|
}
|
|
|
|
// This Data struct workaround is to avoid initializing all the members
|
|
// in Data during construction of this object, since this object is always
|
|
// constructed, even when tracing is disabled. If the members of Data were
|
|
// members of this class instead, compiler warnings occur about potential
|
|
// uninitialized accesses.
|
|
struct Data {
|
|
const unsigned char* category_enabled;
|
|
const char* name;
|
|
};
|
|
Data* p_data_;
|
|
Data data_;
|
|
};
|
|
|
|
} // namespace trace_event_internal
|
|
} // namespace webrtc
|
|
|
|
#endif // RTC_BASE_TRACE_EVENT_H_
|