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58786e1ea7
This patch makes the following changes to the macros.
- Removes PROFILER_LABEL_FUNC. It's only suitable for use in functions outside
classes, due to PROFILER_FUNCTION_NAME not getting class names, and it was
mostly misused.
- Removes PROFILER_FUNCTION_NAME. It's no longer used, and __func__ is
universally available now anyway.
- Combines the first two string literal arguments of PROFILER_LABEL and
PROFILER_LABEL_DYNAMIC into a single argument. There was no good reason for
them to be separate, and it forced a '::' in the label, which isn't always
appropriate. Also, the meaning of the "name_space" argument was interpreted
in an interesting variety of ways.
- Adds an "AUTO_" prefix to PROFILER_LABEL and PROFILER_LABEL_DYNAMIC, to make
it clearer they construct RAII objects rather than just being function calls.
(I myself have screwed up the scoping because of this in the past.)
- Fills in the 'js::ProfileEntry::Category::' qualifier within the macro, so
the caller doesn't need to. This makes a *lot* more of the uses fit onto a
single line.
The patch also makes the following changes to the macro uses (beyond those
required by the changes described above).
- Fixes a bunch of labels that had gotten out of sync with the name of the
class and/or function that encloses them.
- Removes a useless PROFILER_LABEL use within a trivial scope in
EventStateManager::DispatchMouseOrPointerEvent(). It clearly wasn't serving
any useful purpose. It also serves as extra evidence that the AUTO_ prefix is
a good idea.
- Tweaks DecodePool::SyncRunIf{Preferred,Possible} so that the labelling is
done within them, instead of at their callsites, because that's a more
standard way of doing things.
--HG--
extra : rebase_source : 318d1bc6fc1425a94aacbf489dd46e4f83211de4
76 lines
2.0 KiB
C++
76 lines
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "FileUtilsWin.h"
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#include <windows.h>
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#include <psapi.h>
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#include "mozilla/Unused.h"
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#include "nsWindowsHelpers.h"
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#include "GeckoProfiler.h"
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namespace {
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// Scoped type used by HandleToFilename
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struct ScopedMappedViewTraits
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{
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typedef void* type;
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static void* empty()
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{
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return nullptr;
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}
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static void release(void* aPtr)
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{
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if (aPtr) {
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mozilla::Unused << UnmapViewOfFile(aPtr);
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}
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}
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};
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typedef mozilla::Scoped<ScopedMappedViewTraits> ScopedMappedView;
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} // namespace
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namespace mozilla {
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bool
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HandleToFilename(HANDLE aHandle, const LARGE_INTEGER& aOffset,
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nsAString& aFilename)
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{
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AUTO_PROFILER_LABEL("HandletoFilename", NETWORK);
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aFilename.Truncate();
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// This implementation is nice because it uses fully documented APIs that
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// are available on all Windows versions that we support.
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nsAutoHandle fileMapping(CreateFileMapping(aHandle, nullptr, PAGE_READONLY,
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0, 1, nullptr));
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if (!fileMapping) {
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return false;
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}
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ScopedMappedView view(MapViewOfFile(fileMapping, FILE_MAP_READ,
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aOffset.HighPart, aOffset.LowPart, 1));
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if (!view) {
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return false;
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}
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nsAutoString mappedFilename;
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DWORD len = 0;
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SetLastError(ERROR_SUCCESS);
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do {
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mappedFilename.SetLength(mappedFilename.Length() + MAX_PATH);
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len = GetMappedFileNameW(GetCurrentProcess(), view,
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mappedFilename.get(),
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mappedFilename.Length());
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} while (!len && GetLastError() == ERROR_INSUFFICIENT_BUFFER);
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if (!len) {
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return false;
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}
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mappedFilename.Truncate(len);
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return NtPathToDosPath(mappedFilename, aFilename);
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}
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} // namespace mozilla
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