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// 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.
#ifndef BASE_TRACE_EVENT_COMMON_TRACE_EVENT_COMMON_H_
#define BASE_TRACE_EVENT_COMMON_TRACE_EVENT_COMMON_H_
// Trace events are for tracking application performance and resource usage.
// Macros are provided to track:
// Begin and end of function calls
// Counters
//
// Events are issued against categories. Whereas LOG's
// categories are statically defined, TRACE categories are created
// implicitly with a string. For example:
// TRACE_EVENT_INSTANT0("MY_SUBSYSTEM", "SomeImportantEvent",
// TRACE_EVENT_SCOPE_THREAD)
//
// It is often the case that one trace may belong in multiple categories at the
// same time. The first argument to the trace can be a comma-separated list of
// categories, forming a category group, like:
//
// TRACE_EVENT_INSTANT0("input,views", "OnMouseOver", TRACE_EVENT_SCOPE_THREAD)
//
// We can enable/disable tracing of OnMouseOver by enabling/disabling either
// category.
//
// Events can be INSTANT, or can be pairs of BEGIN and END in the same scope:
// TRACE_EVENT_BEGIN0("MY_SUBSYSTEM", "SomethingCostly")
// doSomethingCostly()
// TRACE_EVENT_END0("MY_SUBSYSTEM", "SomethingCostly")
// Note: our tools can't always determine the correct BEGIN/END pairs unless
// these are used in the same scope. Use ASYNC_BEGIN/ASYNC_END macros if you
// need them to be in separate scopes.
//
// A common use case is to trace entire function scopes. This
// issues a trace BEGIN and END automatically:
// void doSomethingCostly() {
// TRACE_EVENT0("MY_SUBSYSTEM", "doSomethingCostly");
// ...
// }
//
// Additional parameters can be associated with an event:
// void doSomethingCostly2(int howMuch) {
// TRACE_EVENT1("MY_SUBSYSTEM", "doSomethingCostly",
// "howMuch", howMuch);
// ...
// }
//
// The trace system will automatically add to this information the
// current process id, thread id, and a timestamp in microseconds.
//
// To trace an asynchronous procedure such as an IPC send/receive, use
// NESTABLE_ASYNC_BEGIN and NESTABLE_ASYNC_END:
// [single threaded sender code]
// static int send_count = 0;
// ++send_count;
// TRACE_EVENT_NESTABLE_ASYNC_BEGIN0(
// "ipc", "message", TRACE_ID_WITH_SCOPE("message", send_count));
// Send(new MyMessage(send_count));
// [receive code]
// void OnMyMessage(send_count) {
// TRACE_NESTABLE_EVENT_ASYNC_END0(
// "ipc", "message", TRACE_ID_WITH_SCOPE("message", send_count));
// }
// The third parameter is a unique ID to match NESTABLE_ASYNC_BEGIN/ASYNC_END
// pairs. NESTABLE_ASYNC_BEGIN and ASYNC_END can occur on any thread of any
// traced process. // Pointers can be used for the ID parameter, and they will
// be annotated internally so that the same pointer on two different processes
// will not match. For example:
// class MyTracedClass {
// public:
// MyTracedClass() {
// TRACE_EVENT_NESTABLE_ASYNC_BEGIN0("category", "MyTracedClass",
// TRACE_ID_LOCAL(this));
// }
// ~MyTracedClass() {
// TRACE_EVENT_NESTABLE_ASYNC_END0("category", "MyTracedClass",
// TRACE_ID_LOCAL(this));
// }
// }
//
// Trace event also supports counters, which is a way to track a quantity
// as it varies over time. Counters are created with the following macro:
// TRACE_COUNTER1("MY_SUBSYSTEM", "myCounter", g_myCounterValue);
//
// Counters are process-specific. The macro itself can be issued from any
// thread, however.
//
// Sometimes, you want to track two counters at once. You can do this with two
// counter macros:
// TRACE_COUNTER1("MY_SUBSYSTEM", "myCounter0", g_myCounterValue[0]);
// TRACE_COUNTER1("MY_SUBSYSTEM", "myCounter1", g_myCounterValue[1]);
// Or you can do it with a combined macro:
// TRACE_COUNTER2("MY_SUBSYSTEM", "myCounter",
// "bytesPinned", g_myCounterValue[0],
// "bytesAllocated", g_myCounterValue[1]);
// This indicates to the tracing UI that these counters should be displayed
// in a single graph, as a summed area chart.
//
// Since counters are in a global namespace, you may want to disambiguate with a
// unique ID, by using the TRACE_COUNTER_ID* variations.
//
// By default, trace collection is compiled in, but turned off at runtime.
// Collecting trace data is the responsibility of the embedding
// application. In Chrome's case, navigating to about:tracing will turn on
// tracing and display data collected across all active processes.
//
//
// Memory scoping note:
// Tracing copies the pointers, not the string content, of the strings passed
// in for category_group, name, and arg_names. Thus, the following code will
// cause problems:
// char* str = strdup("importantName");
// TRACE_EVENT_INSTANT0("SUBSYSTEM", str); // BAD!
// free(str); // Trace system now has dangling pointer
//
// To avoid this issue with the |name| and |arg_name| parameters, use the
// TRACE_EVENT_COPY_XXX overloads of the macros at additional runtime overhead.
// Notes: The category must always be in a long-lived char* (i.e. static const).
// The |arg_values|, when used, are always deep copied with the _COPY
// macros.
//
// When are string argument values copied:
// const char* arg_values are only referenced by default:
// TRACE_EVENT1("category", "name",
// "arg1", "literal string is only referenced");
// Use TRACE_STR_COPY to force copying of a const char*:
// TRACE_EVENT1("category", "name",
// "arg1", TRACE_STR_COPY("string will be copied"));
// std::string arg_values are always copied:
// TRACE_EVENT1("category", "name",
// "arg1", std::string("string will be copied"));
//
//
// Convertable notes:
// Converting a large data type to a string can be costly. To help with this,
// the trace framework provides an interface ConvertableToTraceFormat. If you
// inherit from it and implement the AppendAsTraceFormat method the trace
// framework will call back to your object to convert a trace output time. This
// means, if the category for the event is disabled, the conversion will not
// happen.
//
// class MyData : public base::trace_event::ConvertableToTraceFormat {
// public:
// MyData() {}
// void AppendAsTraceFormat(std::string* out) const override {
// out->append("{\"foo\":1}");
// }
// private:
// ~MyData() override {}
// DISALLOW_COPY_AND_ASSIGN(MyData);
// };
//
// TRACE_EVENT1("foo", "bar", "data",
// std::unique_ptr<ConvertableToTraceFormat>(new MyData()));
//
// The trace framework will take ownership if the passed pointer and it will
// be free'd when the trace buffer is flushed.
//
// Note, we only do the conversion when the buffer is flushed, so the provided
// data object should not be modified after it's passed to the trace framework.
//
//
// Thread Safety:
// A thread safe singleton and mutex are used for thread safety. Category
// enabled flags are used to limit the performance impact when the system
// is not enabled.
//
// TRACE_EVENT macros first cache a pointer to a category. The categories are
// statically allocated and safe at all times, even after exit. Fetching a
// category is protected by the TraceLog::lock_. Multiple threads initializing
// the static variable is safe, as they will be serialized by the lock and
// multiple calls will return the same pointer to the category.
//
// Then the category_group_enabled flag is checked. This is a unsigned char, and
// not intended to be multithread safe. It optimizes access to AddTraceEvent
// which is threadsafe internally via TraceLog::lock_. The enabled flag may
// cause some threads to incorrectly call or skip calling AddTraceEvent near
// the time of the system being enabled or disabled. This is acceptable as
// we tolerate some data loss while the system is being enabled/disabled and
// because AddTraceEvent is threadsafe internally and checks the enabled state
// again under lock.
//
// Without the use of these static category pointers and enabled flags all
// trace points would carry a significant performance cost of acquiring a lock
// and resolving the category.
// There are currently two implementations of the tracing macros. Firstly,
// Perfetto (https://perfetto.dev/) implements a compatible set of macros which
// we are migrating to. The Perfetto implementation is enabled through the
// use_perfetto_client_library GN arg. If that flag is disabled, we fall back to
// the legacy implementation in the latter half of this file (and
// trace_event.h).
// TODO(skyostil): Remove the legacy macro implementation.
// Normally we'd use BUILDFLAG(USE_PERFETTO_CLIENT_LIBRARY) for this, but
// because v8 includes trace_event_common.h directly (in non-Perfetto mode), we
// can't depend on any other header files here.
#if defined(BASE_USE_PERFETTO_CLIENT_LIBRARY)
////////////////////////////////////////////////////////////////////////////////
// Perfetto trace macros
#include "base/threading/platform_thread.h"
#include "base/time/time.h"
// Export Perfetto symbols in the same way as //base symbols.
#define PERFETTO_COMPONENT_EXPORT BASE_EXPORT
// Enable legacy trace event macros (e.g., TRACE_EVENT{0,1,2}).
#define PERFETTO_ENABLE_LEGACY_TRACE_EVENTS 1
// Macros for reading the current trace time (bypassing any virtual time
// overrides).
#define TRACE_TIME_TICKS_NOW() ::base::subtle::TimeTicksNowIgnoringOverride()
#define TRACE_TIME_NOW() ::base::subtle::TimeNowIgnoringOverride()
// 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 collisions.
#define INTERNAL_TRACE_EVENT_UID(name_prefix) PERFETTO_UID(name_prefix)
// Special trace event macro to trace task execution with the location where it
// was posted from.
// TODO(skyostil): Convert this into a regular typed trace event.
#define TRACE_TASK_EXECUTION(run_function, task) \
INTERNAL_TRACE_TASK_EXECUTION(run_function, task)
// Special trace event macro to trace log messages.
// TODO(skyostil): Convert this into a regular typed trace event.
#define TRACE_LOG_MESSAGE(file, message, line) \
INTERNAL_TRACE_LOG_MESSAGE(file, message, line)
// Declare debug annotation converters for base time types, so they can be
// passed as trace event arguments.
// TODO(skyostil): Serialize timestamps using perfetto::TracedValue instead.
namespace perfetto {
namespace protos {
namespace pbzero {
class DebugAnnotation;
} // namespace pbzero
} // namespace protos
namespace internal {
void BASE_EXPORT
WriteDebugAnnotation(protos::pbzero::DebugAnnotation* annotation,
::base::TimeTicks);
void BASE_EXPORT
WriteDebugAnnotation(protos::pbzero::DebugAnnotation* annotation, ::base::Time);
} // namespace internal
} // namespace perfetto
// Pull in the tracing macro definitions from Perfetto.
#include "third_party/perfetto/include/perfetto/tracing.h"
namespace perfetto {
namespace legacy {
template <>
perfetto::ThreadTrack BASE_EXPORT
ConvertThreadId(const ::base::PlatformThreadId& thread);
} // namespace legacy
template <>
struct BASE_EXPORT TraceTimestampTraits<::base::TimeTicks> {
static TraceTimestamp ConvertTimestampToTraceTimeNs(
const ::base::TimeTicks& ticks);
};
} // namespace perfetto
#else // !defined(BASE_USE_PERFETTO_CLIENT_LIBRARY)
////////////////////////////////////////////////////////////////////////////////
// Legacy trace macros
// What follows is the legacy TRACE_EVENT macro implementation, which is being
// replaced by the Perfetto-based implementation above. New projects wishing to
// enable tracing should use the Perfetto SDK. See
// https://perfetto.dev/docs/instrumentation/tracing-sdk.
// Check that nobody includes this file directly. Clients are supposed to
// include the surrounding "trace_event.h" of their project instead.
#if defined(TRACE_EVENT0)
#error "Another copy of this file has already been included."
#endif
// This will mark the trace event as disabled by default. The user will need
// to explicitly enable the event.
#define TRACE_DISABLED_BY_DEFAULT(name) "disabled-by-default-" name
// Records a pair of begin and end events called "name" for the current
// scope, 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.
#define TRACE_EVENT0(category_group, name) \
INTERNAL_TRACE_EVENT_ADD_SCOPED(category_group, name)
#define TRACE_EVENT_WITH_FLOW0(category_group, name, bind_id, flow_flags) \
INTERNAL_TRACE_EVENT_ADD_SCOPED_WITH_FLOW(category_group, name, bind_id, \
flow_flags)
#define TRACE_EVENT1(category_group, name, arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_SCOPED(category_group, name, arg1_name, arg1_val)
#define TRACE_EVENT_WITH_FLOW1(category_group, name, bind_id, flow_flags, \
arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_SCOPED_WITH_FLOW(category_group, name, bind_id, \
flow_flags, arg1_name, arg1_val)
#define TRACE_EVENT2(category_group, name, arg1_name, arg1_val, arg2_name, \
arg2_val) \
INTERNAL_TRACE_EVENT_ADD_SCOPED(category_group, name, arg1_name, arg1_val, \
arg2_name, arg2_val)
#define TRACE_EVENT_WITH_FLOW2(category_group, name, bind_id, flow_flags, \
arg1_name, arg1_val, arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_SCOPED_WITH_FLOW(category_group, name, bind_id, \
flow_flags, arg1_name, arg1_val, \
arg2_name, arg2_val)
// Records a single 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.
#define TRACE_EVENT_INSTANT0(category_group, name, scope) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name, \
TRACE_EVENT_FLAG_NONE | scope)
#define TRACE_EVENT_INSTANT1(category_group, name, scope, arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name, \
TRACE_EVENT_FLAG_NONE | scope, arg1_name, arg1_val)
#define TRACE_EVENT_INSTANT2(category_group, name, scope, arg1_name, arg1_val, \
arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name, \
TRACE_EVENT_FLAG_NONE | scope, arg1_name, arg1_val, \
arg2_name, arg2_val)
#define TRACE_EVENT_COPY_INSTANT0(category_group, name, scope) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name, \
TRACE_EVENT_FLAG_COPY | scope)
#define TRACE_EVENT_COPY_INSTANT1(category_group, name, scope, arg1_name, \
arg1_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name, \
TRACE_EVENT_FLAG_COPY | scope, arg1_name, arg1_val)
#define TRACE_EVENT_COPY_INSTANT2(category_group, name, scope, arg1_name, \
arg1_val, arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name, \
TRACE_EVENT_FLAG_COPY | scope, arg1_name, arg1_val, \
arg2_name, arg2_val)
#define TRACE_EVENT_INSTANT_WITH_FLAGS0(category_group, name, scope_and_flags) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name, \
scope_and_flags)
#define TRACE_EVENT_INSTANT_WITH_FLAGS1(category_group, name, scope_and_flags, \
arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_INSTANT, category_group, name, \
scope_and_flags, arg1_name, arg1_val)
#define TRACE_EVENT_INSTANT_WITH_TIMESTAMP0(category_group, name, scope, \
timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP( \
TRACE_EVENT_PHASE_INSTANT, category_group, name, timestamp, \
TRACE_EVENT_FLAG_NONE | scope)
#define TRACE_EVENT_INSTANT_WITH_TIMESTAMP1(category_group, name, scope, \
timestamp, arg_name, arg_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP( \
TRACE_EVENT_PHASE_INSTANT, category_group, name, timestamp, \
TRACE_EVENT_FLAG_NONE | scope, arg_name, arg_val)
// Records a single 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.
#define TRACE_EVENT_BEGIN0(category_group, name) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, category_group, name, \
TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_BEGIN1(category_group, name, arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, category_group, name, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
#define TRACE_EVENT_BEGIN2(category_group, name, arg1_name, arg1_val, \
arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, category_group, name, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, \
arg2_name, arg2_val)
#define TRACE_EVENT_BEGIN_WITH_FLAGS0(category_group, name, flags) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, category_group, name, flags)
#define TRACE_EVENT_BEGIN_WITH_FLAGS1(category_group, name, flags, arg1_name, \
arg1_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, category_group, name, \
flags, arg1_name, arg1_val)
#define TRACE_EVENT_COPY_BEGIN2(category_group, name, arg1_name, arg1_val, \
arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_BEGIN, category_group, name, \
TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, \
arg2_name, arg2_val)
// Similar to TRACE_EVENT_BEGINx but with a custom |timestamp| provided.
// - |id| is used to match the _BEGIN event with the _END event.
// Events are considered to match if their category_group, 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.
// - |timestamp| must be non-null or it crashes. Use DCHECK(timestamp) before
// calling this to detect an invalid timestamp even when tracing is not
// enabled, as the commit queue doesn't run all tests with tracing enabled.
#define TRACE_EVENT_BEGIN_WITH_ID_TID_AND_TIMESTAMP0(category_group, name, id, \
thread_id, timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id, thread_id, \
timestamp, TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_COPY_BEGIN_WITH_ID_TID_AND_TIMESTAMP0( \
category_group, name, id, thread_id, timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id, thread_id, \
timestamp, TRACE_EVENT_FLAG_COPY)
#define TRACE_EVENT_COPY_BEGIN_WITH_ID_TID_AND_TIMESTAMP1( \
category_group, name, id, thread_id, timestamp, arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id, thread_id, \
timestamp, TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val)
#define TRACE_EVENT_COPY_BEGIN_WITH_ID_TID_AND_TIMESTAMP2( \
category_group, name, id, thread_id, timestamp, arg1_name, arg1_val, \
arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id, thread_id, \
timestamp, TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, arg2_name, \
arg2_val)
// Records a single END event for "name" immediately. 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.
#define TRACE_EVENT_END0(category_group, name) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, category_group, name, \
TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_END1(category_group, name, arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, category_group, name, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
#define TRACE_EVENT_END2(category_group, name, arg1_name, arg1_val, arg2_name, \
arg2_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, category_group, name, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, \
arg2_name, arg2_val)
#define TRACE_EVENT_END_WITH_FLAGS0(category_group, name, flags) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, category_group, name, flags)
#define TRACE_EVENT_END_WITH_FLAGS1(category_group, name, flags, arg1_name, \
arg1_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, category_group, name, flags, \
arg1_name, arg1_val)
#define TRACE_EVENT_COPY_END2(category_group, name, arg1_name, arg1_val, \
arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_END, category_group, name, \
TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, \
arg2_name, arg2_val)
// Adds a trace event with the given |name| and |timestamp|. |timestamp| must be
// non-null or it crashes. Use DCHECK(timestamp) before calling this to detect
// an invalid timestamp even when tracing is not enabled, as the commit queue
// doesn't run all tests with tracing enabled.
#define TRACE_EVENT_MARK_WITH_TIMESTAMP0(category_group, name, timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP( \
TRACE_EVENT_PHASE_MARK, category_group, name, timestamp, \
TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_MARK_WITH_TIMESTAMP1(category_group, name, timestamp, \
arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP( \
TRACE_EVENT_PHASE_MARK, category_group, name, timestamp, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
#define TRACE_EVENT_MARK_WITH_TIMESTAMP2( \
category_group, name, timestamp, arg1_name, arg1_val, arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP( \
TRACE_EVENT_PHASE_MARK, category_group, name, timestamp, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, arg2_name, arg2_val)
#define TRACE_EVENT_COPY_MARK(category_group, name) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_MARK, category_group, name, \
TRACE_EVENT_FLAG_COPY)
#define TRACE_EVENT_COPY_MARK1(category_group, name, arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_MARK, category_group, name, \
TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val)
#define TRACE_EVENT_COPY_MARK_WITH_TIMESTAMP(category_group, name, timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP( \
TRACE_EVENT_PHASE_MARK, category_group, name, timestamp, \
TRACE_EVENT_FLAG_COPY)
// Similar to TRACE_EVENT_ENDx but with a custom |timestamp| provided.
// - |id| is used to match the _BEGIN event with the _END event.
// Events are considered to match if their category_group, 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.
// - |timestamp| must be non-null or it crashes. Use DCHECK(timestamp) before
// calling this to detect an invalid timestamp even when tracing is not
// enabled, as the commit queue doesn't run all tests with tracing enabled.
#define TRACE_EVENT_END_WITH_ID_TID_AND_TIMESTAMP0(category_group, name, id, \
thread_id, timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id, thread_id, \
timestamp, TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_COPY_END_WITH_ID_TID_AND_TIMESTAMP0( \
category_group, name, id, thread_id, timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id, thread_id, \
timestamp, TRACE_EVENT_FLAG_COPY)
#define TRACE_EVENT_COPY_END_WITH_ID_TID_AND_TIMESTAMP1( \
category_group, name, id, thread_id, timestamp, arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id, thread_id, \
timestamp, TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val)
#define TRACE_EVENT_COPY_END_WITH_ID_TID_AND_TIMESTAMP2( \
category_group, name, id, thread_id, timestamp, arg1_name, arg1_val, \
arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id, thread_id, \
timestamp, TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, arg2_name, \
arg2_val)
// Records the value of a counter called "name" immediately. Value
// must be representable as a 32 bit integer.
// - category and name strings must have application lifetime (statics or
// literals). They may not include " chars.
#define TRACE_COUNTER1(category_group, name, value) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_COUNTER, category_group, name, \
TRACE_EVENT_FLAG_NONE, "value", \
static_cast<int>(value))
#define TRACE_COUNTER_WITH_FLAG1(category_group, name, flag, value) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_COUNTER, category_group, name, \
flag, "value", static_cast<int>(value))
#define TRACE_COPY_COUNTER1(category_group, name, value) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_COUNTER, category_group, name, \
TRACE_EVENT_FLAG_COPY, "value", \
static_cast<int>(value))
// Records the values of a multi-parted counter called "name" immediately.
// The UI will treat value1 and value2 as parts of a whole, displaying their
// values as a stacked-bar chart.
// - category and name strings must have application lifetime (statics or
// literals). They may not include " chars.
#define TRACE_COUNTER2(category_group, name, value1_name, value1_val, \
value2_name, value2_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_COUNTER, category_group, name, \
TRACE_EVENT_FLAG_NONE, value1_name, \
static_cast<int>(value1_val), value2_name, \
static_cast<int>(value2_val))
#define TRACE_COPY_COUNTER2(category_group, name, value1_name, value1_val, \
value2_name, value2_val) \
INTERNAL_TRACE_EVENT_ADD(TRACE_EVENT_PHASE_COUNTER, category_group, name, \
TRACE_EVENT_FLAG_COPY, value1_name, \
static_cast<int>(value1_val), value2_name, \
static_cast<int>(value2_val))
// Similar to TRACE_COUNTERx, but with a custom |timestamp| provided.
// - |timestamp| must be non-null or it crashes. Use DCHECK(timestamp) before
// calling this to detect an invalid timestamp even when tracing is not
// enabled, as the commit queue doesn't run all tests with tracing enabled.
#define TRACE_COUNTER_WITH_TIMESTAMP1(category_group, name, timestamp, value) \
INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP( \
TRACE_EVENT_PHASE_COUNTER, category_group, name, timestamp, \
TRACE_EVENT_FLAG_NONE, "value", static_cast<int>(value))
#define TRACE_COUNTER_WITH_TIMESTAMP2(category_group, name, timestamp, \
value1_name, value1_val, value2_name, \
value2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP( \
TRACE_EVENT_PHASE_COUNTER, category_group, name, timestamp, \
TRACE_EVENT_FLAG_NONE, value1_name, static_cast<int>(value1_val), \
value2_name, static_cast<int>(value2_val))
// Records the value of a counter called "name" immediately. Value
// must be representable as a 32 bit integer.
// - category and name strings must have application lifetime (statics or
// literals). They may not include " chars.
// - |id| is used to disambiguate counters with the same name. It 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.
#define TRACE_COUNTER_ID1(category_group, name, id, value) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_COUNTER, category_group, \
name, id, TRACE_EVENT_FLAG_NONE, "value", \
static_cast<int>(value))
#define TRACE_COPY_COUNTER_ID1(category_group, name, id, value) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_COUNTER, category_group, \
name, id, TRACE_EVENT_FLAG_COPY, "value", \
static_cast<int>(value))
// Records the values of a multi-parted counter called "name" immediately.
// The UI will treat value1 and value2 as parts of a whole, displaying their
// values as a stacked-bar chart.
// - category and name strings must have application lifetime (statics or
// literals). They may not include " chars.
// - |id| is used to disambiguate counters with the same name. It 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.
#define TRACE_COUNTER_ID2(category_group, name, id, value1_name, value1_val, \
value2_name, value2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_COUNTER, category_group, \
name, id, TRACE_EVENT_FLAG_NONE, \
value1_name, static_cast<int>(value1_val), \
value2_name, static_cast<int>(value2_val))
#define TRACE_COPY_COUNTER_ID2(category_group, name, id, value1_name, \
value1_val, value2_name, value2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_COUNTER, category_group, \
name, id, TRACE_EVENT_FLAG_COPY, \
value1_name, static_cast<int>(value1_val), \
value2_name, static_cast<int>(value2_val))
#define TRACE_EVENT_SAMPLE_WITH_ID1(category_group, name, id, arg1_name, \
arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_SAMPLE, category_group, \
name, id, TRACE_EVENT_FLAG_NONE, arg1_name, \
arg1_val)
// -- TRACE_EVENT_ASYNC is DEPRECATED! --
//
// TRACE_EVENT_ASYNC_* APIs should be only used by legacy code. New code should
// use TRACE_EVENT_NESTABLE_ASYNC_* APIs instead.
//
// Records a single ASYNC_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 ASYNC_BEGIN event with the ASYNC_END event. ASYNC
// events are considered to match if their category_group, 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.
//
// An asynchronous operation can consist of multiple phases. The first phase is
// defined by the ASYNC_BEGIN calls. Additional phases can be defined using the
// ASYNC_STEP_INTO or ASYNC_STEP_PAST macros. The ASYNC_STEP_INTO macro will
// annotate the block following the call. The ASYNC_STEP_PAST macro will
// annotate the block prior to the call. Note that any particular event must use
// only STEP_INTO or STEP_PAST macros; they can not mix and match. When the
// operation completes, call ASYNC_END.
//
// An ASYNC trace typically occurs on a single thread (if not, they will only be
// drawn on the thread defined in the ASYNC_BEGIN event), but all events in that
// operation must use the same |name| and |id|. Each step can have its own
// args.
#define TRACE_EVENT_ASYNC_BEGIN0(category_group, name, id) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_BEGIN, \
category_group, name, id, \
TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_ASYNC_BEGIN1(category_group, name, id, arg1_name, \
arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_BEGIN, \
category_group, name, id, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
#define TRACE_EVENT_ASYNC_BEGIN2(category_group, name, id, arg1_name, \
arg1_val, arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, arg2_name, arg2_val)
#define TRACE_EVENT_COPY_ASYNC_BEGIN0(category_group, name, id) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_BEGIN, \
category_group, name, id, \
TRACE_EVENT_FLAG_COPY)
#define TRACE_EVENT_COPY_ASYNC_BEGIN1(category_group, name, id, arg1_name, \
arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_BEGIN, \
category_group, name, id, \
TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val)
#define TRACE_EVENT_COPY_ASYNC_BEGIN2(category_group, name, id, arg1_name, \
arg1_val, arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id, \
TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, arg2_name, arg2_val)
// Similar to TRACE_EVENT_ASYNC_BEGINx but with a custom |at| timestamp
// provided.
#define TRACE_EVENT_ASYNC_BEGIN_WITH_TIMESTAMP0(category_group, name, id, \
timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_ASYNC_BEGIN_WITH_TIMESTAMP1( \
category_group, name, id, timestamp, arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE, \
arg1_name, arg1_val)
#define TRACE_EVENT_ASYNC_BEGIN_WITH_TIMESTAMP2(category_group, name, id, \
timestamp, arg1_name, \
arg1_val, arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE, \
arg1_name, arg1_val, arg2_name, arg2_val)
#define TRACE_EVENT_COPY_ASYNC_BEGIN_WITH_TIMESTAMP0(category_group, name, id, \
timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_BEGIN, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_COPY)
// Records a single ASYNC_STEP_INTO 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. The ASYNC_BEGIN event must not have any
// ASYNC_STEP_PAST events.
#define TRACE_EVENT_ASYNC_STEP_INTO0(category_group, name, id, step) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_STEP_INTO, \
category_group, name, id, \
TRACE_EVENT_FLAG_NONE, "step", step)
#define TRACE_EVENT_ASYNC_STEP_INTO1(category_group, name, id, step, \
arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_ASYNC_STEP_INTO, category_group, name, id, \
TRACE_EVENT_FLAG_NONE, "step", step, arg1_name, arg1_val)
// Similar to TRACE_EVENT_ASYNC_STEP_INTOx but with a custom |at| timestamp
// provided.
#define TRACE_EVENT_ASYNC_STEP_INTO_WITH_TIMESTAMP0(category_group, name, id, \
step, timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_STEP_INTO, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE, \
"step", step)
// Records a single ASYNC_STEP_PAST 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. The ASYNC_BEGIN event must not have any
// ASYNC_STEP_INTO events.
#define TRACE_EVENT_ASYNC_STEP_PAST0(category_group, name, id, step) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_STEP_PAST, \
category_group, name, id, \
TRACE_EVENT_FLAG_NONE, "step", step)
#define TRACE_EVENT_ASYNC_STEP_PAST1(category_group, name, id, step, \
arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_ASYNC_STEP_PAST, category_group, name, id, \
TRACE_EVENT_FLAG_NONE, "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_group, name, id) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_END, \
category_group, name, id, \
TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_ASYNC_END1(category_group, name, id, arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_END, \
category_group, name, id, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
#define TRACE_EVENT_ASYNC_END2(category_group, name, id, arg1_name, arg1_val, \
arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, arg2_name, arg2_val)
#define TRACE_EVENT_COPY_ASYNC_END0(category_group, name, id) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_END, \
category_group, name, id, \
TRACE_EVENT_FLAG_COPY)
#define TRACE_EVENT_COPY_ASYNC_END1(category_group, name, id, arg1_name, \
arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_ASYNC_END, \
category_group, name, id, \
TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val)
#define TRACE_EVENT_COPY_ASYNC_END2(category_group, name, id, arg1_name, \
arg1_val, arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id, \
TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, arg2_name, arg2_val)
// Similar to TRACE_EVENT_ASYNC_ENDx but with a custom |at| timestamp provided.
#define TRACE_EVENT_ASYNC_END_WITH_TIMESTAMP0(category_group, name, id, \
timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_ASYNC_END_WITH_TIMESTAMP1(category_group, name, id, \
timestamp, arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE, \
arg1_name, arg1_val)
#define TRACE_EVENT_ASYNC_END_WITH_TIMESTAMP2(category_group, name, id, \
timestamp, arg1_name, arg1_val, \
arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE, \
arg1_name, arg1_val, arg2_name, arg2_val)
#define TRACE_EVENT_COPY_ASYNC_END_WITH_TIMESTAMP0(category_group, name, id, \
timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_ASYNC_END, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_COPY)
// NESTABLE_ASYNC_* APIs are used to describe an async operation, which can
// be nested within a NESTABLE_ASYNC event and/or have inner NESTABLE_ASYNC
// events.
// - category and name strings must have application lifetime (statics or
// literals). They may not include " chars.
// - A pair of NESTABLE_ASYNC_BEGIN event and NESTABLE_ASYNC_END event is
// considered as a match if their category_group, name and id 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.
// - |id| is used to match a child NESTABLE_ASYNC event with its parent
// NESTABLE_ASYNC event. Therefore, events in the same nested event tree must
// be logged using the same id and category_group.
//
// Unmatched NESTABLE_ASYNC_END event will be parsed as an event that starts
// at the first NESTABLE_ASYNC event of that id, and unmatched
// NESTABLE_ASYNC_BEGIN event will be parsed as an event that ends at the last
// NESTABLE_ASYNC event of that id. Corresponding warning messages for
// unmatched events will be shown in the analysis view.
// Records a single NESTABLE_ASYNC_BEGIN event called "name" immediately, with
// 0, 1 or 2 associated arguments. If the category is not enabled, then this
// does nothing.
#define TRACE_EVENT_NESTABLE_ASYNC_BEGIN0(category_group, name, id) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, \
category_group, name, id, \
TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_NESTABLE_ASYNC_BEGIN1(category_group, name, id, arg1_name, \
arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, \
category_group, name, id, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
#define TRACE_EVENT_NESTABLE_ASYNC_BEGIN2(category_group, name, id, arg1_name, \
arg1_val, arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, category_group, name, id, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, arg2_name, arg2_val)
#define TRACE_EVENT_NESTABLE_ASYNC_BEGIN_WITH_FLAGS0(category_group, name, id, \
flags) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, \
category_group, name, id, flags)
// Records a single NESTABLE_ASYNC_END event called "name" immediately, with 0
// or 2 associated arguments. If the category is not enabled, then this does
// nothing.
#define TRACE_EVENT_NESTABLE_ASYNC_END0(category_group, name, id) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, \
category_group, name, id, \
TRACE_EVENT_FLAG_NONE)
// Records a single NESTABLE_ASYNC_END event called "name" immediately, with 1
// associated argument. If the category is not enabled, then this does nothing.
#define TRACE_EVENT_NESTABLE_ASYNC_END1(category_group, name, id, arg1_name, \
arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, \
category_group, name, id, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
#define TRACE_EVENT_NESTABLE_ASYNC_END2(category_group, name, id, arg1_name, \
arg1_val, arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, category_group, name, id, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, arg2_name, arg2_val)
#define TRACE_EVENT_NESTABLE_ASYNC_END_WITH_FLAGS0(category_group, name, id, \
flags) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, \
category_group, name, id, flags)
// Records a single NESTABLE_ASYNC_INSTANT event called "name" immediately,
// with none, one or two associated argument. If the category is not enabled,
// then this does nothing.
#define TRACE_EVENT_NESTABLE_ASYNC_INSTANT0(category_group, name, id) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_INSTANT, \
category_group, name, id, \
TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_NESTABLE_ASYNC_INSTANT1(category_group, name, id, \
arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_INSTANT, \
category_group, name, id, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val)
#define TRACE_EVENT_NESTABLE_ASYNC_INSTANT2( \
category_group, name, id, arg1_name, arg1_val, arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_INSTANT, category_group, name, id, \
TRACE_EVENT_FLAG_NONE, arg1_name, arg1_val, arg2_name, arg2_val)
#define TRACE_EVENT_COPY_NESTABLE_ASYNC_BEGIN_WITH_TTS2( \
category_group, name, id, arg1_name, arg1_val, arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, category_group, name, id, \
TRACE_EVENT_FLAG_ASYNC_TTS | TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, \
arg2_name, arg2_val)
#define TRACE_EVENT_COPY_NESTABLE_ASYNC_END_WITH_TTS2( \
category_group, name, id, arg1_name, arg1_val, arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, category_group, name, id, \
TRACE_EVENT_FLAG_ASYNC_TTS | TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, \
arg2_name, arg2_val)
// Similar to TRACE_EVENT_NESTABLE_ASYNC_{BEGIN,END}x but with a custom
// |timestamp| provided.
#define TRACE_EVENT_NESTABLE_ASYNC_BEGIN_WITH_TIMESTAMP0(category_group, name, \
id, timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_NESTABLE_ASYNC_BEGIN_WITH_TIMESTAMP1( \
category_group, name, id, timestamp, arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE, \
arg1_name, arg1_val)
#define TRACE_EVENT_NESTABLE_ASYNC_BEGIN_WITH_TIMESTAMP_AND_FLAGS0( \
category_group, name, id, timestamp, flags) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, flags)
#define TRACE_EVENT_NESTABLE_ASYNC_END_WITH_TIMESTAMP0(category_group, name, \
id, timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_NESTABLE_ASYNC_END_WITH_TIMESTAMP1( \
category_group, name, id, timestamp, arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE, \
arg1_name, arg1_val)
#define TRACE_EVENT_NESTABLE_ASYNC_END_WITH_TIMESTAMP2( \
category_group, name, id, timestamp, arg1_name, arg1_val, arg2_name, \
arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE, \
arg1_name, arg1_val, arg2_name, arg2_val)
#define TRACE_EVENT_NESTABLE_ASYNC_END_WITH_TIMESTAMP_AND_FLAGS0( \
category_group, name, id, timestamp, flags) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, flags)
#define TRACE_EVENT_NESTABLE_ASYNC_INSTANT_WITH_TIMESTAMP0( \
category_group, name, id, timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_INSTANT, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_COPY_NESTABLE_ASYNC_BEGIN0(category_group, name, id) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, \
category_group, name, id, \
TRACE_EVENT_FLAG_COPY)
#define TRACE_EVENT_COPY_NESTABLE_ASYNC_BEGIN1(category_group, name, id, \
arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, \
category_group, name, id, \
TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val)
#define TRACE_EVENT_COPY_NESTABLE_ASYNC_BEGIN2( \
category_group, name, id, arg1_name, arg1_val, arg2_name, arg2_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, category_group, name, id, \
TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val, arg2_name, arg2_val)
#define TRACE_EVENT_COPY_NESTABLE_ASYNC_END0(category_group, name, id) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, \
category_group, name, id, \
TRACE_EVENT_FLAG_COPY)
#define TRACE_EVENT_COPY_NESTABLE_ASYNC_BEGIN_WITH_TIMESTAMP0( \
category_group, name, id, timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_COPY)
#define TRACE_EVENT_COPY_NESTABLE_ASYNC_BEGIN_WITH_TIMESTAMP1( \
category_group, name, id, timestamp, arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_COPY, \
arg1_name, arg1_val)
#define TRACE_EVENT_COPY_NESTABLE_ASYNC_END_WITH_TIMESTAMP0( \
category_group, name, id, timestamp) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, category_group, name, id, \
TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_COPY)
#define TRACE_EVENT_COPY_NESTABLE_ASYNC_END1(category_group, name, id, \
arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID(TRACE_EVENT_PHASE_NESTABLE_ASYNC_END, \
category_group, name, id, \
TRACE_EVENT_FLAG_COPY, arg1_name, arg1_val)
// Special trace event macro to trace task execution with the location where it
// was posted from.
#define TRACE_TASK_EXECUTION(run_function, task) \
INTERNAL_TRACE_TASK_EXECUTION(run_function, task)
// Special trace event macro to trace log messages.
#define TRACE_LOG_MESSAGE(file, message, line) \
INTERNAL_TRACE_LOG_MESSAGE(file, message, line)
// TRACE_EVENT_METADATA* events are information related to other
// injected events, not events in their own right.
#define TRACE_EVENT_METADATA1(category_group, name, arg1_name, arg1_val) \
INTERNAL_TRACE_EVENT_METADATA_ADD(category_group, name, arg1_name, arg1_val)
// Records a clock sync event.
#define TRACE_EVENT_CLOCK_SYNC_RECEIVER(sync_id) \
INTERNAL_TRACE_EVENT_ADD( \
TRACE_EVENT_PHASE_CLOCK_SYNC, "__metadata", "clock_sync", \
TRACE_EVENT_FLAG_NONE, "sync_id", sync_id)
#define TRACE_EVENT_CLOCK_SYNC_ISSUER(sync_id, issue_ts, issue_end_ts) \
INTERNAL_TRACE_EVENT_ADD_WITH_TIMESTAMP( \
TRACE_EVENT_PHASE_CLOCK_SYNC, "__metadata", "clock_sync", \
issue_end_ts, TRACE_EVENT_FLAG_NONE, \
"sync_id", sync_id, "issue_ts", issue_ts)
// Macros to track the life time and value of arbitrary client objects.
// See also TraceTrackableObject.
#define TRACE_EVENT_OBJECT_CREATED_WITH_ID(category_group, name, id) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_CREATE_OBJECT, category_group, name, id, \
TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_OBJECT_SNAPSHOT_WITH_ID(category_group, name, id, \
snapshot) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_SNAPSHOT_OBJECT, category_group, name, \
id, TRACE_EVENT_FLAG_NONE, "snapshot", snapshot)
#define TRACE_EVENT_OBJECT_SNAPSHOT_WITH_ID_AND_TIMESTAMP( \
category_group, name, id, timestamp, snapshot) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID_TID_AND_TIMESTAMP( \
TRACE_EVENT_PHASE_SNAPSHOT_OBJECT, category_group, name, \
id, TRACE_EVENT_API_CURRENT_THREAD_ID, timestamp, TRACE_EVENT_FLAG_NONE, \
"snapshot", snapshot)
#define TRACE_EVENT_OBJECT_DELETED_WITH_ID(category_group, name, id) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_DELETE_OBJECT, category_group, name, id, \
TRACE_EVENT_FLAG_NONE)
// Records entering and leaving trace event contexts. |category_group| and
// |name| specify the context category and type. |context| is a
// snapshotted context object id.
#define TRACE_EVENT_ENTER_CONTEXT(category_group, name, context) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_ENTER_CONTEXT, category_group, name, context, \
TRACE_EVENT_FLAG_NONE)
#define TRACE_EVENT_LEAVE_CONTEXT(category_group, name, context) \
INTERNAL_TRACE_EVENT_ADD_WITH_ID( \
TRACE_EVENT_PHASE_LEAVE_CONTEXT, category_group, name, context, \
TRACE_EVENT_FLAG_NONE)
// Macro to efficiently determine if a given category group is enabled.
#define TRACE_EVENT_CATEGORY_GROUP_ENABLED(category_group, ret) \
do { \
INTERNAL_TRACE_EVENT_GET_CATEGORY_INFO(category_group); \
if (INTERNAL_TRACE_EVENT_CATEGORY_GROUP_ENABLED_FOR_RECORDING_MODE()) { \
*ret = true; \
} else { \
*ret = false; \
} \
} while (0)
// Macro to efficiently determine, through polling, if a new trace has begun.
#define TRACE_EVENT_IS_NEW_TRACE(ret) \
do { \
static int INTERNAL_TRACE_EVENT_UID(lastRecordingNumber) = 0; \
int num_traces_recorded = TRACE_EVENT_API_GET_NUM_TRACES_RECORDED(); \
if (num_traces_recorded != -1 && \
num_traces_recorded != \
INTERNAL_TRACE_EVENT_UID(lastRecordingNumber)) { \
INTERNAL_TRACE_EVENT_UID(lastRecordingNumber) = num_traces_recorded; \
*ret = true; \
} else { \
*ret = false; \
} \
} while (0)
// Macro for getting the real base::TimeTicks::Now() which can be overridden in
// headless when VirtualTime is enabled.
#define TRACE_TIME_TICKS_NOW() INTERNAL_TRACE_TIME_TICKS_NOW()
// Macro for getting the real base::Time::Now() which can be overridden in
// headless when VirtualTime is enabled.
#define TRACE_TIME_NOW() INTERNAL_TRACE_TIME_NOW()
// 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_COMPLETE ('X')
#define TRACE_EVENT_PHASE_INSTANT ('I')
#define TRACE_EVENT_PHASE_ASYNC_BEGIN ('S')
#define TRACE_EVENT_PHASE_ASYNC_STEP_INTO ('T')
#define TRACE_EVENT_PHASE_ASYNC_STEP_PAST ('p')
#define TRACE_EVENT_PHASE_ASYNC_END ('F')
#define TRACE_EVENT_PHASE_NESTABLE_ASYNC_BEGIN ('b')
#define TRACE_EVENT_PHASE_NESTABLE_ASYNC_END ('e')
#define TRACE_EVENT_PHASE_NESTABLE_ASYNC_INSTANT ('n')
#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')
#define TRACE_EVENT_PHASE_SAMPLE ('P')
#define TRACE_EVENT_PHASE_CREATE_OBJECT ('N')
#define TRACE_EVENT_PHASE_SNAPSHOT_OBJECT ('O')
#define TRACE_EVENT_PHASE_DELETE_OBJECT ('D')
#define TRACE_EVENT_PHASE_MEMORY_DUMP ('v')
#define TRACE_EVENT_PHASE_MARK ('R')
#define TRACE_EVENT_PHASE_CLOCK_SYNC ('c')
#define TRACE_EVENT_PHASE_ENTER_CONTEXT ('(')
#define TRACE_EVENT_PHASE_LEAVE_CONTEXT (')')
// Flags for changing the behavior of TRACE_EVENT_API_ADD_TRACE_EVENT.
#define TRACE_EVENT_FLAG_NONE (static_cast<unsigned int>(0))
#define TRACE_EVENT_FLAG_COPY (static_cast<unsigned int>(1 << 0))
#define TRACE_EVENT_FLAG_HAS_ID (static_cast<unsigned int>(1 << 1))
#define TRACE_EVENT_FLAG_SCOPE_OFFSET (static_cast<unsigned int>(1 << 2))
#define TRACE_EVENT_FLAG_SCOPE_EXTRA (static_cast<unsigned int>(1 << 3))
#define TRACE_EVENT_FLAG_EXPLICIT_TIMESTAMP (static_cast<unsigned int>(1 << 4))
#define TRACE_EVENT_FLAG_ASYNC_TTS (static_cast<unsigned int>(1 << 5))
#define TRACE_EVENT_FLAG_BIND_TO_ENCLOSING (static_cast<unsigned int>(1 << 6))
#define TRACE_EVENT_FLAG_FLOW_IN (static_cast<unsigned int>(1 << 7))
#define TRACE_EVENT_FLAG_FLOW_OUT (static_cast<unsigned int>(1 << 8))
#define TRACE_EVENT_FLAG_HAS_CONTEXT_ID (static_cast<unsigned int>(1 << 9))
#define TRACE_EVENT_FLAG_HAS_PROCESS_ID (static_cast<unsigned int>(1 << 10))
#define TRACE_EVENT_FLAG_HAS_LOCAL_ID (static_cast<unsigned int>(1 << 11))
#define TRACE_EVENT_FLAG_HAS_GLOBAL_ID (static_cast<unsigned int>(1 << 12))
#define TRACE_EVENT_FLAG_JAVA_STRING_LITERALS \
(static_cast<unsigned int>(1 << 16))
#define TRACE_EVENT_FLAG_SCOPE_MASK \
(static_cast<unsigned int>(TRACE_EVENT_FLAG_SCOPE_OFFSET | \
TRACE_EVENT_FLAG_SCOPE_EXTRA))
// 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))
#define TRACE_VALUE_TYPE_CONVERTABLE (static_cast<unsigned char>(8))
#define TRACE_VALUE_TYPE_PROTO (static_cast<unsigned char>(9))
// Enum reflecting the scope of an INSTANT event. Must fit within
// TRACE_EVENT_FLAG_SCOPE_MASK.
#define TRACE_EVENT_SCOPE_GLOBAL (static_cast<unsigned char>(0 << 2))
#define TRACE_EVENT_SCOPE_PROCESS (static_cast<unsigned char>(1 << 2))
#define TRACE_EVENT_SCOPE_THREAD (static_cast<unsigned char>(2 << 2))
#define TRACE_EVENT_SCOPE_NAME_GLOBAL ('g')
#define TRACE_EVENT_SCOPE_NAME_PROCESS ('p')
#define TRACE_EVENT_SCOPE_NAME_THREAD ('t')
#endif // !defined(BASE_USE_PERFETTO_CLIENT_LIBRARY)
#endif // BASE_TRACE_EVENT_COMMON_TRACE_EVENT_COMMON_H_
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