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/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8 -*- */

/* vim: set sw=4 ts=8 et tw=80 ft=cpp : */

/* 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/. */

using mozilla::TimeDuration from "mozilla/TimeStamp.h";

namespace mozilla {

// The different kinds of hang entries which we're going to need to handle in

// our HangStacks.

struct HangEntryBufOffset

    // NOTE: Don't trust this index without checking it is a valid index into

    // the strbuffer, and that the buffer's last byte is a '\0'.

    uint32_t index;

};

struct HangEntryModOffset

    uint32_t module;

    uint32_t offset;

};

struct HangEntryProgCounter

    uintptr_t pc;

};

// Singleton structs for the union type.

struct HangEntryContent {};

struct HangEntryJit {};

struct HangEntryWasm {};

struct HangEntryChromeScript {};

struct HangEntrySuppressed {};

union HangEntry

    // String representing a pseudostack or chrome JS stack.

    nsCString;

    // The index of the start of a string in the associated buffer.

    HangEntryBufOffset;

    // A module index and offset into that module.

    HangEntryModOffset;

    // A raw program counter which has not been mapped into a module.

    HangEntryProgCounter;

    // A hidden "(content script)" frame.

    HangEntryContent;

    // An unprocessed "(jit frame)"

    HangEntryJit;

    // An unprocessed "(wasm)" frame.

    HangEntryWasm;

    // A chrome script which didn't fit in the buffer.

    HangEntryChromeScript;

    // A JS frame while profiling was suppressed.

    HangEntrySuppressed;

};

struct HangModule

    // The file name, /foo/bar/libxul.so for example.

    // It can contain unicode characters.

    nsString name;

    nsCString breakpadId;

};

struct HangStack

    HangEntry[] stack;

    int8_t[] strbuffer;

    HangModule[] modules;

};

// Hang annotation information.

struct HangAnnotation

    nsString name;

    nsString value;

};

// The information about an individual hang which is sent over IPC.

struct HangDetails

    TimeDuration duration;

    nsCString process;

    nsCString remoteType;

    nsCString threadName;

    nsCString runnableName;

    HangStack stack;

    HangAnnotation[] annotations;

};

} // namespace mozilla