/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// This is equal to sizeof(double), which is the largest non-char variant in // |u|. static constexpr size_t ProfileBufferEntryNumChars = 8;
// NOTE! If you add entries, you need to verify if they need to be added to the // switch statement in DuplicateLastSample! // This will evaluate the MACRO with (KIND, TYPE, SIZE) #define FOR_EACH_PROFILE_BUFFER_ENTRY_KIND(MACRO) \
MACRO(CategoryPair, int, sizeof(int)) \
MACRO(CollectionStart, double, sizeof(double)) \
MACRO(CollectionEnd, double, sizeof(double)) \
MACRO(Label, constchar*, sizeof(constchar*)) \
MACRO(FrameFlags, uint64_t, sizeof(uint64_t)) \
MACRO(DynamicStringFragment, char*, ProfileBufferEntryNumChars) \
MACRO(JitReturnAddr, void*, sizeof(void*)) \
MACRO(InnerWindowID, uint64_t, sizeof(uint64_t)) \
MACRO(LineNumber, int, sizeof(int)) \
MACRO(ColumnNumber, int, sizeof(int)) \
MACRO(NativeLeafAddr, void*, sizeof(void*)) \
MACRO(Pause, double, sizeof(double)) \
MACRO(Resume, double, sizeof(double)) \
MACRO(PauseSampling, double, sizeof(double)) \
MACRO(ResumeSampling, double, sizeof(double)) \
MACRO(Responsiveness, double, sizeof(double)) \
MACRO(ThreadId, ::mozilla::baseprofiler::BaseProfilerThreadId, \ sizeof(::mozilla::baseprofiler::BaseProfilerThreadId)) \
MACRO(Time, double, sizeof(double)) \
MACRO(TimeBeforeCompactStack, double, sizeof(double)) \
MACRO(TimeBeforeSameSample, double, sizeof(double)) \
MACRO(CounterId, void*, sizeof(void*)) \
MACRO(Number, uint64_t, sizeof(uint64_t)) \
MACRO(Count, int64_t, sizeof(int64_t)) \
MACRO(ProfilerOverheadTime, double, sizeof(double)) \
MACRO(ProfilerOverheadDuration, double, sizeof(double))
// The `Kind` is a single byte identifying the type of data that is actually // stored in a `ProfileBufferEntry`, as per the list in // `FOR_EACH_PROFILE_BUFFER_ENTRY_KIND`. // // This byte is also used to identify entries in ProfileChunkedBuffer blocks, // for both "legacy" entries that do contain a `ProfileBufferEntry`, and for // new types of entries that may carry more data of different types. // TODO: Eventually each type of "legacy" entry should be replaced with newer, // more efficient kinds of entries (e.g., stack frames could be stored in one // bigger entry, instead of multiple `ProfileBufferEntry`s); then we could // discard `ProfileBufferEntry` and move this enum to a more appropriate spot. enumclass ProfileBufferEntryKind : uint8_t {
INVALID = 0, #define KIND(KIND, TYPE, SIZE) KIND,
FOR_EACH_PROFILE_BUFFER_ENTRY_KIND(KIND) #undef KIND
// Any value under `LEGACY_LIMIT` represents a `ProfileBufferEntry`.
LEGACY_LIMIT,
// Any value starting here does *not* represent a `ProfileBufferEntry` and // requires separate decoding and handling.
// Markers and their data.
Marker = LEGACY_LIMIT,
// Entry with "running times", such as CPU usage measurements. // Optional between TimeBeforeX and X.
RunningTimes,
// Optional between TimeBeforeX and X.
UnresponsiveDurationMs,
// Collection of legacy stack entries, must follow a ThreadId and // TimeBeforeCompactStack (which are not included in the CompactStack; // TimeBeforeCompactStack is equivalent to Time, but indicates that a // CompactStack follows shortly afterwards).
CompactStack,
// Indicates that this sample is identical to the previous one, must follow a // ThreadId and TimeBeforeSameSample.
SameSample,
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